Vortex

Open Access Article

1 - Linear and nonlinear analysis of dust acoustic waves in dissipative space dusty plasmas with trapped ions
A. M. El-Hanbaly E. K. El-Shewy M. Sallah H. F. Darweesh

10.1007/s40094-015-0175-7

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2 - Synoptic Analysis of the Nature of Sudan Low Pressure Systems (Case Study: December 2001 Storm)
عباس Mofidi آذر Zarrin

In order to investigate some synoptic aspects of Sudan low systems such asupper and lower level tropospheric circulation pattern and moisture source and theiradvection way, the synoptic pattern on the occurrence time of December 2001 stormover Iran has been noticed. The More

In order to investigate some synoptic aspects of Sudan low systems such asupper and lower level tropospheric circulation pattern and moisture source and theiradvection way, the synoptic pattern on the occurrence time of December 2001 stormover Iran has been noticed. Therefore the maps of surface, 500, 200, 50hpa levelsbefore and after storm were studied. In order to understand the situation of subtropicaljet stream and how it strengthens, maps of zonal wind component and velocitypotential (x) of 200hpa level have investigated. Also, satellite images of cloud form ofstorm have been studied.The results showed that although like previous studies, there was low cycle indexand existence of a ridge in mid-troposphere over the west Mediterranean and a deeptrough over the east Mediterranean had important role on the formation and evolutionof Sudan low; but the main role belonged to the stretching of polar vortex in lowerstratosphere as the main source of vorticity for abnormal circulation and strengtheningof Hadley cell and Subtropical jet stream over Mediterranean and north of Africa.The results indicated that the suitable position of Subtropical jet stream core overMiddle East associated with the settlement and strengthening of a ridge in middle andlower troposphere over the Arabian Sea are necessary for the evolution and developingof Sudan lows.However, the position and speed of subtropical jet stream core over the MiddleEast and it’s axis direction in the upper troposphere control both the mid-troposphericcirculation pattern and the tracks of incoming Sudan lows to Iran.The consequences indicated that settlements and strengthening of ridge/high over theArabian Sea, while making a set positive feedback and subsequently intensify Hadleycell and strengthening subtropical jet stream over Red Sea region, lend to directtransportation of moisture from the Arabian Sea into Sudan lows.Moreover, it was found that the main sources of moisture of Sudan systems aretropical Eastern Africa and southwest sector of Arabian Sea which strengthening whenthey pass over the Read Sea and Persian Gulf. Manuscript profile

Open Access Article

3 - Dynamic Analysis of the Role of Stratospheric Large Scale Circulation on the Stratospheric Ozone Depletion, Part II; Dynamical Mechanisms
عباس Mofidi

In order to recognize and understand the mechanism governing on variations and decrease ofstratospheric ozone, the dynamical Principles which are governing on the stratosphere layerwere investigated. In this case, links between the most important dynamical components, i More

In order to recognize and understand the mechanism governing on variations and decrease ofstratospheric ozone, the dynamical Principles which are governing on the stratosphere layerwere investigated. In this case, links between the most important dynamical components, i.e.Polar Vortex, Planetary Scale Waves, Stratospheric Sudden Warming (SSW), QBO andvariations and depletion of stratospheric ozone, illustrated.The results indicate that Stratospheric Polar Vortex has a key role in interannualvariability of Total ozone and account a necessary precondition for ozone depletion andformation of stratospheric ozone hole. Therefore, Shape, Area, intensity and Persistence ofPolar Vortex in two hemisphere is determining ozone decrease rate and the maximum arealcoverage of ozone hole.The results shows that dynamical forcing from troposphere is the major source ofstratospheric variations and upward propagation of planetary waves in addition to theoccurance Brewer-Dobson circulation and SSW, is controlling the temporal and spatialdistribution of total ozone and decrease and increase of stratospheric ozone. Hence, thecirculation of the winter stratosphere is strongly influenced by vertically propagating forcedplanetary waves and rate of planetary waves activity in stratosphere and their interaction withdynamical components such as QBO and Polar Vortex, additionally control of Brewer-Dobson circulation and temperature ratio, is determining transport and interannual variabilityof stratospheric ozone.The Stratospheric Sudden Warming (SSW) is the most dramatic meteorologicalphenomenon to take place in stratosphere. The breakup of the polar vortex during a majorSSW, or during a Final Warming, leads to the greatest mixing of polar and low-latitude air,bringing, for instance, ozone-poor air from the polar vortex to mid-latitude.The dominant source of variability in the tropical stratosphere is the QBO, which involvesthe quasi-periodic reversal of zonal winds from westerly to easterly and back again. The resultsshows that the zonal-wind structure in the stratosphere affects the propagation of planetarywaves from the troposphere. When the QBO is in its westerly phase throughout the tropicallower stratosphere, the waves are refracted away from polar regions towards the tropics. Thestratosphere polar vortex should therefore be cold and strong, with less intense SSWs. When,on the other hand, the QBO is in its easterly phase, the waves are more confined to middle andpolar latitudes. The polar vortex should be warmer and weaker and therefore more susceptibleto breakdown by SSWs. In such cases, ozone depletion is less in the Polar Regions and thus,the ozone hole would be smaller. Manuscript profile

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4 - Dynamical Analysis of the Role of Stratospheric Large Scale Circulation on the Stratospheric Ozone Depletion
Abbas Mofidi

In order to recognize and understand the mechanism governing on variations anddecrease of stratospheric ozone, the dynamical characteristics of Middle atmospherespecially,atmospheric circulation and mass transport in the stratosphere wereinvestigated.The first, characte More

In order to recognize and understand the mechanism governing on variations anddecrease of stratospheric ozone, the dynamical characteristics of Middle atmospherespecially,atmospheric circulation and mass transport in the stratosphere wereinvestigated.The first, characteristics of stratospheric ozone such as it’s production andtemporal and spatial distribution of it has been noticed. Then, considering the veryimportant role of stratospheric circulation in distribution, variation and decrease ofstratospheric ozone, with presentation of a division of stratospheric circulation; meancharacteristics of zonal(consist of Polar Vortex, Surf Zone, QBO and summerhemisphere circulation) and meridional circulation(Brewer-Dobson circulation) hasbeen illustrated.In following, in order to explanation of stratospheric ozone depletion, trend oftemporal and spatial ozone decreasing were investigated. Finally, links between themost important dynamical components, i.e. Polar Vortex, Planetary Scale RossbyWaves, Stratospheric Sudden Warming, QBO and variations and depletion ofstratospheric ozone, illustrated.The results indicate that since 1980, the global mean of ozone decrease was about3% and the largest decreases have been observed over the polar regions of twohemispheres in spring.Stratospheric Polar Vortex has a key role in interannual variability of Total Ozoneand account a necessary precondition for ozone depletion and formation ofstratospheric ozone hole. Therefore, Shape, Area, intensity and Persistence of PolarVortex in two hemisphere is determining ozone decrease rate and the maximum arealcoverage of ozone hole.Dynamical forcing from troposphere is the major source of stratospheric variationsand upward propagation of planetary waves in addition to the occurance Brewer-Dobson circulation and Stratospheric Sudden Warming, is controlling the temporal andspatial distribution of total ozone and decrease and increase of stratospheric ozone.Hence, the circulation of the winter stratosphere is strongly influenced by verticallypropagating forced planetary waves and rate of planetary waves activity in stratosphereand their interaction with dynamical components such as QBO and Polar Vortex,additionally control of Brewer-Dobson circulation and temperature ratio, isdetermining transport and interannual variability of stratospheric ozone. Manuscript profile

Open Access Article

5 - Improving efficiency of a gas cyclone in high-temperature operating conditions by using appropriate geometry of vortex finder
Akbar Jafarnezhad Hesamoddin SALARIAN Saeid Kheradmand Jahanfar Khaleghinia

Background and Objective: Cyclones are widely used in air pollution control to separate particulate gas mixtures and are used in industry. The advantages of this device in different industries are its relative simplicity of construction, low operating cost and reliable More

Background and Objective: Cyclones are widely used in air pollution control to separate particulate gas mixtures and are used in industry. The advantages of this device in different industries are its relative simplicity of construction, low operating cost and reliable under extreme working conditions. Today, cyclone separators have become one of the most important particle removal devices in the fields of science and engineering. Due to the wide application of cyclones in industrial processes, especially thermal power plants, the study of the performance of cyclones at high temperatures is of particular importance. In the present study, two-phase flow simulation within a cyclone will be performed in three different dimensions using the Eulerian-Lagrangian approach in order to study the cyclone performance in a wide range of temperatures, and finally the problem of its lower performance will be substantially resolved by using appropriate geometry of vortex finder. Material and Methodology: In this study, the effect of inlet temperature on the flow field and the separation performance of a cyclone has been comprehensively investigated using CFD simulation. The Euler-Lagrangian approach has been used to simulate airflow and particle dynamics in cyclones. In addition, four proposed vortex finder geometries were considered and compared with the basic geometry in order to evaluate how the vortex finder affects the cyclone performance under a wide temperature range (293 K-700 K). The validity of the numerical model is confirmed by comparing the predicted pressure drop with the experimental data and numerical results in which there is a good agreement was achieved. Findings: The results demonstrated that increasing of inlet temperature significantly reduced the tangential velocity and led to a sharp decrease in the cyclone separation efficiency. All of the proposed vortex finders affected the flow pattern within the cyclone at all inlet temperatures. The simulation results showed that the highest tangential velocity observed in the cyclone was with CVF 1, which also had a positive effect on the relevant separation efficiency. Also, it is proved that the proposed cyclone with CVF 1 was able to collect finer particles (2 μm) at high inlet temperature (T = 700 K). Discussion and Conclusion: In the present study, while examining the performance of cyclone using the Eulerian-Lagrangian approach in three dimensions over a wide temperature range, a suitable solution to improve efficiency and solve the problem of efficiency drop at high temperatures was presented. By properly changing the dimensions and geometry of the vortex finder, the flow in the pre-separation zone can be well controlled to improve particle separation efficiency. Manuscript profile

Open Access Article

6 - Irreversibility Analysis and Numerical Simulation in a Finned-Tube Heat Exchanger Equipped with Block Shape Vortex Generator
M. Ghazikhani E. Noorifar A. Mohammadian

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7 - Studying the Effect of Different Vortex Generator Geometries and Arrangements on Heat Transfer Performance of Heat Sinks
Mohsen Motahari-Nezhad Shayan Fathi Mohammad Eftekhari Armen Adamian

10.30495/admt.2020.1870924.1126

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8 - بررسی تأثیر همزمان مجرای تحتانی پلکانی و گردابشکن بر هیدرولیک جریان عبوری بر سرریز نیلوفری
روزبه آقامجیدی سید حبیب موسوی جهرمی حیدرعلی کشکولی

در دهه‌های اخیر سد های زیادی ساخته شده ‌اند و یا در حال ساخت می‌ باشند. با توجه به بالا بودن نیاز به آب و نیز فرسایش روز افزون خاک در مناطق مختلف لزوم احداث سد کاملاً محسوس می ‌باشد. در سال 1900 تعداد سد های بزرگ، از 50 عدد تجاوز نمی‌کرد. ولیکن در بین سال‌ های 1950 الی More

در دهه‌های اخیر سد های زیادی ساخته شده ‌اند و یا در حال ساخت می‌ باشند. با توجه به بالا بودن نیاز به آب و نیز فرسایش روز افزون خاک در مناطق مختلف لزوم احداث سد کاملاً محسوس می ‌باشد. در سال 1900 تعداد سد های بزرگ، از 50 عدد تجاوز نمی‌کرد. ولیکن در بین سال‌ های 1950 الی 1986 تعداد سد های بزرگ (بیش از 15 متر ارتفاع) بیش از 39000 شمارش گردید. از دهه 70 میلادی ساخت سدها توسعه روز افزونی داشته است. سرریزها بنا بر نوع بهره ‌برداری و نوع پروژه متفاوت است. به‌عبارت بهتر سرریزها دارای انواع مختلف می ‌باشند که یکی از این انواع، سریز نیلوفری است. سرریز نیلوفری عبارت است از سرریز جداگانه ‌ای که می‌تواند جایگزین سرریز جانبی شود. این سرریز از یک دهانه دایروی، یک تبدیل دایروی قائم و یک تونل تحت فشار افقی (یا تقریباً افقی) که نهایتاً آب را از مخزن سد به پایین دست منتقل می‌کند، تشکیل می ‌شود. به عبارت دیگر، سرریز نیلوفری از یک تاج دایره‌ای تشکیل می ‌شود که جریان را به یک محور مایل یا قائم هدایت می ‌نماید. در این تحقیق جهت بررسی عملکرد توامان مجرای پلکانی و گرداب ‌شکن  برروی هیدرولیک سرریز نیلوفری آزمایشات متعددی با انواع گرداب‌شکن و با انواع مجرای پلکانی انجام پذیرفت، که نتایج حاصل نشان می ‌دهد که بعد از انجام نزدیک 100 آزمایش بهترین مجرای پلکانی مربوط به مجرای 12 پلکان و گرداب‌شکن با ارتفاع و طول کم با آرایش شش تایی است که باعث افزایش دبی عبوری به میزان 23 درصد می‌شود. لازم به ذکر است که افزایش ضخامت گرداب ‌شکن بیش از هفت درصد شعاع سرریز اثر چندانی بر افزایش ضریب سرریز را ندارد. همچنین می‌توان  نتیجه گرفت که عملکرد سرریز با آرایش شش‌ تایی دارای بازده و راندمان بالاتری است. Manuscript profile

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9 - بررسی تاثیر زبری برروی استهلاک انرژی و سرریزهای پلکانی گابیونی، با استفاده از مدل ریاضی FLOW- 3D
کمال علاسوند جواد احدیان حسین فتحیان

بررسی خصوصیات و رفتار جریان، در سازههای هیدرولیکی، از پدیدههای پیچیده ای است که استفاده از نرم افزار در آن را امری اجتناب ناپذیر مینماید. سرریز پلکانی گابیونی سازه هیدرولیکی ساده&rlm;ای است که برای استهلاک انرژی در سدهای مختلف و نیز کنترل فرسایش پایی More

بررسی خصوصیات و رفتار جریان، در سازههای هیدرولیکی، از پدیدههای پیچیده ای است که استفاده از نرم افزار در آن را امری اجتناب ناپذیر مینماید. سرریز پلکانی گابیونی سازه هیدرولیکی ساده&rlm;ای است که برای استهلاک انرژی در سدهای مختلف و نیز کنترل فرسایش پایین دست سازه، استفاده می شود. سرریز پلکانی گابیونی از پله‌هایی تشکیل می شود که از نزدیکی تاج سرریز شروع شده و تا پاشنه پایین دست ادامه می یابند. در این تحقیق، نسبت عرض به طول زبریها (b/h) برابر با 1، 5/0 و 25/0 و سه حالت ارتفاع زبری، برای دبی‌های4 تا 220 لیتردر ثانیه، در مدلی 9 پلهای، با ارتفاع پلههای 1/0 متر و شیب 21 درجه، مورد بررسی قرار گرفت. و همچنین در خصوص تاثیر زبریها در نحوه پراکنش انرژی و بوجود آمدن جریان گردابهای، روی پلکانهای سرریز پلکانی گابیونی به وسیله نرم افزار Flow3D پرداخته شد. نتایج این تحقیق نشان میدهد که در بازه دبی‌های 004/0 و 009/0 و 01/0 متر مکعب بر ثانیه، رژیم جریان به صورت ریزشی و از دبی 016/0 متر مکعب بر ثانیه به بالاتر، رژیم جریان، به صورت غیر ریزشی است و بیشترین استهلاک انرژی، مربوط به دبی 016/0 است که با 5/79 درصد انرژی، مستهلک می شود و کمترین استهلاک انرژی، مربوط به دبی 220/0 متر مکعب بر ثانیه می باشد که  با 4/20 درصد انرژی، مستهلک شده خواهد بود. Manuscript profile

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10 - Numerical simulation and experimental study on a microscale vortex tube
نادر رهبر Mostafa Shateri Mohsan Taherian محمد صادق ولی پور

In This paper the energy separation phenomenon in a micro-scale vortex tube was investigated by using the computational fluid dynamic. The flow is assumed as steady, turbulent, compressible ideal gas, and the shear-stress transport is used for modeling of turbulence phe More

In This paper the energy separation phenomenon in a micro-scale vortex tube was investigated by using the computational fluid dynamic. The flow is assumed as steady, turbulent, compressible ideal gas, and the shear-stress transport is used for modeling of turbulence phenomenon. The results show that 3-D CFD simulation is more accurate than 2-D axisymmetric one. Moreover, optimum cold-mass ratios to maximize the refrigeration-power and isentropic-efficiency are evaluated. The results of static temperature, velocity magnitude and pressure distributions show that the temperature-separation in the micro-scale vortex tube is a function of kinetic-energy variation and air-expansion in the radial direction. Manuscript profile

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11 - Drag reducing of Peogeut 405 using the vortex generator.
Rouhollah Ghodsi Hamidreza Zomorodi Farhad Emamalizadeh

Abstract The flow separation at the rear of a vehicle generates more pressure drag. A vortex generator can cause delay in developing of separation by chang-ing the distribution of momentum in boundary layer. The comparison be-tween the results of with and without vorte More

Abstract The flow separation at the rear of a vehicle generates more pressure drag. A vortex generator can cause delay in developing of separation by chang-ing the distribution of momentum in boundary layer. The comparison be-tween the results of with and without vortex generator reveals the effects of vortex generator on drag reduction considerably. In this study, an effi-cient vortex generator is designed for the Peugeot 405 sedan. The numeri-cal simulations are performed using ANSYS FLUENT and also the model and mesh are generated by ICEM. Manuscript profile

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12 - Numerical analysis of the effects of sweep angle and sharpness of leading edge on Aerodynamic behavior of delta wing
Reza Aaghaei Togh Alireza Sekhavat Benis Mostafa Hadi Doolabi

Delta wing is studied in several Mach numbers, sweep angles, sharp and curved edges of attack. Algorithm of flow on upper side of the wing is studied and illustrated. Algorithm of flow is compared with the elder studies and changes of these options by Mach number and an More

Delta wing is studied in several Mach numbers, sweep angles, sharp and curved edges of attack. Algorithm of flow on upper side of the wing is studied and illustrated. Algorithm of flow is compared with the elder studies and changes of these options by Mach number and angle of attack and sweep angle is determined. Illustrations show that on the upper side of the delta wing, a vortex arises that by increasing Mach number, stretches and comes near the wing. Also addition to the primary vortex, secondary vortex arises. In Mach numbers up to 1.2 edge of attack becomes supersonic and expansion waves, accelerate the flow. In higher angles of attack, vortex breakdown occurred that in different Mach numbers and different angles of attack is studied. Manuscript profile

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13 - Numerical study of the effect of vortex generators arrangement on vehicle aerodynamic characteristics
morteza khayat

Land vehicles are among the blunt body objects. When a vehicle moves forward, the movement of air around it produces a pressure gradient that varies along the body. This can lead to separation and appearance of a turbulent wake region in the rear of the vehicle. The pre More

Land vehicles are among the blunt body objects. When a vehicle moves forward, the movement of air around it produces a pressure gradient that varies along the body. This can lead to separation and appearance of a turbulent wake region in the rear of the vehicle. The present study numerically investigates the aerodynamic effects of vortex generators and their arrangement in different positions of 6 and 15 numbers, each with linear, rectangular and triangular arrangements on the back of a car model. Reynolds-Averaged Navier-Stokes (RANS) equations and turbulent models have been used to analyze the changes in drag and lift coefficients obtained from different arrangements of the vortex generators. The results show that the best case for reducing the drag force is related to 6 numbers of vortex generators with linear and triangular arrangement, which reduces the drag coefficient by 2% compared to the car model without vortex generators. In addition, the best case to improve the downforce; in order to increase the stability of the car, is the arrangement of 15 vortex generators with a rectangular alignment, which reduces the lift coefficient by 23.1% compared to the car model without the vortex generator. Also, with increasing the number of vortex generators from 6 to 15, the drag coefficients generally increase. Manuscript profile

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14 - Vortex-induced energy harvesting of an elliptic blade in high-Reynolds lid-driven cavity flow
Ali Akbar Hosseinjani Ghasem Akbari

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15 - Designing and Manufacturing the Multiple Jets Simulator and Experimental Investigation of the Multiple Jets in Crossflow
Saeed Toolani Mohamad Hojaji

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16 - Experimental Investigation of The Effect of Number and Angle of Anti-Vortex Piers on Submergence Threshold in Square and Circular Morning Glory Spillways
Seyyed Reza Mousavi Adel Barati Amir Abbas Kamanbedast

Morning glory spillway, is one of the spillways and used when it is not possible to use any other spillways. With the onset of Submergence and flow Loss, and circulation flows intensify, Spillway performance decrease severely and the height of water in the reservoir inc More

Morning glory spillway, is one of the spillways and used when it is not possible to use any other spillways. With the onset of Submergence and flow Loss, and circulation flows intensify, Spillway performance decrease severely and the height of water in the reservoir increases and Risk of dam damage, caused by the lack of spillway ability of great flow discharge, rises. The increase of the Submergence threshold provide ability of greater flow discharging, without Spillway submergence and its negative consequences. Anti-vortex piers, in addition to correcting circulation and vortexes, may also be effective in increasing the Submergence threshold. To investigate the effect of Anti-vortex piers on submergence threshold, 199 experiments were performed with the physical model on spillways with square and circular inlet section in different modes of number and angle of anti-vortex piers. Results show that in the square spillway, increasing the number (Best mode, 8 piers) or decreasing the angle of Anti-vortex piers (Best mode, 30o), increase the Submergence. In the circular spillway, increasing the number (Best mode, 8 piers) or the angle of Anti-vortex piers (Best mode, 90o), increase the Submergence. At all modes of numbers and angles of piers increasing of submergence threshold in the circular spillway is more than square spillway, But submergence threshold values at all modes in the square spillway is greather. Also, in both spillways the angle of piers more than the number of them affect the submergence threshold. Manuscript profile

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17 - Effect of Gradation on Sediment Trapping Efficiency in Structures of Vortex Tube with Different Angles
ali asareh sina jamshidi orak

Due to the fact that many variables are effective in the amount of sediment trapping and the amount of water loss in the eddy tube, this study was conducted to investigate the performance of the eddy tube in laboratory conditions. 4 ratio of pipe gap width to pipe diame More

Due to the fact that many variables are effective in the amount of sediment trapping and the amount of water loss in the eddy tube, this study was conducted to investigate the performance of the eddy tube in laboratory conditions. 4 ratio of pipe gap width to pipe diameter (t / d), 0.15, 0.20, 0.25 and 0.3, 3 granulation D1 (particles passing through sieve 8 and remaining on sieve 10), D2 (particles passing through sieve 16 and remaining on sieve 20) and D3 (particles passing through sieve 20 and remaining on sieve 30) were selected at a 45 degree angle with different flow rates. The results showed that if the area is not facing water shortage and water supply problems and preventing sediment from entering the system is preferable to water supply, t / d = 0.3 is a more desirable option; But if it is very important in water supply areas and there is basically water shortage; The better option is t / d = 0.25. Manuscript profile

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18 - Investigation of water head variation& relation to empirical Coefficient n of Stepped short Shaft Spill way
roozbeh AGHA MAJIDI mohammad nasre. isfahani

These spillways (Stepped shaft spillways) pass more flow discharges through themselves in comparison to smooth spillways theoretically. Therefore knowing of flow behavior of these Spillways, help using better and more efficiently. Moreover, using vortex breaker has grea More

These spillways (Stepped shaft spillways) pass more flow discharges through themselves in comparison to smooth spillways theoretically. Therefore knowing of flow behavior of these Spillways, help using better and more efficiently. Moreover, using vortex breaker has great effect on passing Flow through Shaft Spillway. For using more efficiently, the risk of flow water head on the crest decreases to less than fluid vapor water head on the crest , called cavitation’s, should be prevented as far as possible. At this research, it has been tried to study different behavior of Stepped chamber and different vortex breaker shapes on spillway flow. From the viewpoint of the effects of flow regime changes on spillway, changes of step dimensions, and the change of type of flow range will Studied Effectively. And finally the best the relation between water head on the crest and Discharge Coefficient are determined. Manuscript profile

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19 - Theory of a Superluminous Vacuum Quanta as the Fabric of Space
Rajan Iyer

10.30495/ijm2c.2021.685125

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20 - Investigation of the effect of thermal treatment after welding on the corrosion properties of the interconnecting joint wall of Cu / SS 304 sheets
Ali Ebrahimi Akbarabadi Abbas Saadat Mohammadreza Khanzadeh hamid bakhtiari

In the present study, the effect of thermal treatment on the corrosion behavior and microstructure changes of two-layer stainless-304-Cu sheet steel sheets after the explosive welding process has been investigated. Explosive welding has been done in parallel with an exp More

In the present study, the effect of thermal treatment on the corrosion behavior and microstructure changes of two-layer stainless-304-Cu sheet steel sheets after the explosive welding process has been investigated. Explosive welding has been done in parallel with an explosive layer of 46 and 63 µm and a stop distance of 2-3 mm. After explosive welding, the heat treatment process was carried out at 350 and 450 ° C for 8 and 16 hours. Explosive welding with an explosive load and variable stop distance. From the results of the electrochemical impedance test, it can be seen that the n number in the heat treatment sample at 350 ° C and 8 hours is less than the heat treatment sample at 450 ° C and 8 hours, and as a result, the corrosion current in the heat treatment sample The temperature is 350 ° C and the time is 8 hours, which reduces the load transfer resistance. By comparing the heat treatment samples at 350 ° C and 8 hours and the heat treatment at 450 ° C and the time of 8 hours with varying aniline temperature, the annealing time is constant and the heat treatment sample at 450 ° C and time 8 The hour with more annealing temperature has a value of n (0.80), followed by heat treatment at 350 ° C and 8 hours (n = 0.66), due to annealing temperature and reduced energy storage In the chapter. Manuscript profile

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