Prediction of Fluid Flow and Heat Transfer Characteristics Behind a Single Backward-Facing Step


Mechanical Engineering, Bangladesh University of Engineering & Technology


Numerical solutions based on standard finite volume method are presented for the study of heat transfer and fluid dynamic characteristics in turbulent flows behind a single sided backward-facing step. The calculation of the differential equations is performed using SIMPLE algorithm. For the turbulent quantities standard K-model is used. Predicted mean velocity profiles and reattachment lengths comply with the experimental data but significant deviation occurs in the predictions of turbulent intensities. The predicted heat transfer coefficient is in good agreement up to the reattachment point and downstream of that point it matches qualitatively.