Two-dimensional Incompressible flow over vertical backward facing step with a hot downstream wall is analyzed numerically for the laminar mixed convection regime. A modified SIMPLE algorithm is used for solving the governing partial differential equations of the flow. The entire analysis is performed for a single expansion ratio of 2. The effect of aiding/opposing buoyancy on the reattachment length is investigated for wide range of Richardson numbers and at three different Reynold numbers, holding the boussinesq assumption intact. We found the buoyancy critically influences the reattachment length.
Sanju Santhosh and Dr. Ajith Kumar S., “Effects of Buoyancy on the Reattachment Length in Flow over Heated Vertical Backward Facing Step”, The Eleventh International Conference on Thermal Engineering-Theory and Applications - ICTEA 2018, Doha - Qatar. 2018.