List of Articles fluid mechanic Open Access Article Abstract Page Full-Text 1 - The principles of heat transfer and fluid mechanics in porous media (review) mehrdad mesgarpour Ali Heydari seyfollah saddodin Open Access Article Abstract Page Full-Text 2 - Reduction of flow separation and overall drag of the NACA 4415 airfoil by creating grooves on it Seyed mostafa Mirtabaei Open Access Article Abstract Page Full-Text 3 - Comparison of Discharge Coefficient Between Arced Piano Key Weir and Non-Arc Piano Key Weirs aliakbar karamvand Hooman Hajikandi Ahmad Sharafati