Turbulent Flow Over a Backward-Facing Step

Analysis Characteristics

• Steady-state
• 2D internal, separated flow
• Turbulent
• Incompressible

Reference

Vogel, J.C., Eaton, J.K., “Heat transfer and fluid mechanics measurements in the turbulent reattaching flow behind a rearward facing step”, Report MD-44, Thermosciences Div., Dept. of Mechanical Engineering, Stanford University (1984).

Problem Description

The experiment of Vogel, et al. (1984) is used to verify the accuracy of the turbulence flow modeling capabilities of Autodesk® CFD. The aim is to accurately predict the location of flow reattachment downstream of the step.

Geometry and Boundary Conditions

Results

Comparison of non-dimensional reattachment length,

	Benchmark	2018: Build 20170309	% Error	2019: Build 20180130	% Error
	6.67	6.668	.031	6.845	2.624