List of Articles turbulent Open Access Article Abstract Page Full-Text 1 - Increasing the Heat Transfer Performance of a Turbulator Equipped Concentric Gas-liquid Heat Exchanger Using Al2O3 – Water Nanofluid seyyed rahim hosseini Seyyed Masoud Seyyedi Mehdi Hashemi Tilenoee 20.1001.1.26764342.2022.5.2.7.9