Presented to

[نام نویسنده را انتخاب نمایید]

This is to certify that your paper entitled «Comparison of Thermal-Hydraulic Performance of V-bend, Lbend and U-bend Zigzag Channels Using Computational Fluid Dynamics» was indexed with 11 pages, in the CIVILICA citation database, code COI:NTOGP02_012, after evaluation and approval of the referees of the "2nd International Conference on: New Technologies in Oil, Gas and Petrochemical Industries held in Tehran 2021.

While offering our congratulations on the indexation of your paper, please be informed that this certificate is prepared based on the information submitted by the secretariat of the above conference and the information contained in the CIVILICA database, and the accuracy of its content can be inquired at any time through link provided at the bottom of the page or scanning the code image.