Title

Numerical Simulation of Turbulent Flow and Heat Transfer Over a Backward-Facing Step-A Benchmark Problem

Abstract

This paper presents the results of a numerical simulation of a two-dimensional, incompressible turbulent forced convection flow in a channel with a backward-facing step. The problem is solved as a benchmark problem for the 1994 ASME Winter Annual Meeting. The Reynolds number and Prandtl number are 20,000 and 0.71, respectively. For a uniformly heated wall downstream of the adiabatic step, the flow and heat transfer characteristics are predicted for different inlet flow conditions and upstream heating levels. A standard turbulence K-ε model with wall function is used. Grid refinement is performed to obtain optimum results. A modified TEACH code is used in the numerical computations and the desired flow and heat transfer results are presented for the region downstream of the step.

Meeting Name

1994 International Mechanical Engineering Congress & Exhibition of the the Winter Annual Meeting

Department(s)

Mechanical and Aerospace Engineering

Keywords and Phrases

Fluxes; Forecasting; Friction; Heat Convection; Heating; Turbulence Flow; Velocity

Document Type

Article - Conference proceedings

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 1994 American Society of Mechanical Engineers (ASME), All rights reserved.

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