ISSN:
1619-6937
Source:
Springer Online Journal Archives 1860-2000
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
,
Physics
Notes:
Summary This study presents the numerical predictions of the fluid flow and heat transfer characteristics for a backward-facing step by discharging a jet perpendicularly to the main flow. The turbulent governing equations are solved by a control-volume-based finite-difference method with power-law scheme and the well known K−ε model and its associate wall function to describe the turbulent behavior. The interesting parameters include entrance Reynolds number (Re h ), dimensionless jet location (X j/H) and the ratio of jet velocity (U j/U0) with channel expansion ratio ER=1.67. The predicted attachment point is in good agreement with the experiment. It is found that the optimum position is atX j/H=2.1 (X j: location of jet measured from the step position, H: the step height).
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF01463157
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