Turbulent heat transfer near the reattachment of flow downstream of a sudden pipe expansion
Journal Article
·
· Numer. Heat Transfer; (United States)
Numerical predictions are obtained for the turbulent flow and heat transfer downstream from a sudden expansion in a circular pipe. A full Reynolds stress model is used to close the time-averaged Navier-Stokes equations, with an algebraic model for the thermal fluxes. The models account for the low Reynolds number effects in the wall region and thus avoid use of the conventional wall functions. The predicted Nusselt number distribution along the heated wall especially in the reattachment region is in very good agreement with available measurements.
- Research Organization:
- Mechanical Engineering Dept., Univ. of California, Irvine, CA
- OSTI ID:
- 7030698
- Journal Information:
- Numer. Heat Transfer; (United States), Journal Name: Numer. Heat Transfer; (United States) Vol. 10:4; ISSN NUHTD
- Country of Publication:
- United States
- Language:
- English
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Heat transfer, temperature, and velocity measurements downstream of an abrupt expansion in a circular tube at a uniform wall temperature
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·
Tue Oct 31 23:00:00 EST 1989
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·
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Related Subjects
42 ENGINEERING
420400* -- Engineering-- Heat Transfer & Fluid Flow
DIFFERENTIAL EQUATIONS
ENERGY TRANSFER
EQUATIONS
EXPANSION
FLOW MODELS
FLUID FLOW
HEAT FLUX
HEAT TRANSFER
MATHEMATICAL MODELS
NAVIER-STOKES EQUATIONS
NUSSELT NUMBER
PARTIAL DIFFERENTIAL EQUATIONS
PIPES
REYNOLDS NUMBER
STRESS ANALYSIS
THERMAL EXPANSION
TIME DEPENDENCE
TURBULENT FLOW
TWO-PHASE FLOW
WALLS
420400* -- Engineering-- Heat Transfer & Fluid Flow
DIFFERENTIAL EQUATIONS
ENERGY TRANSFER
EQUATIONS
EXPANSION
FLOW MODELS
FLUID FLOW
HEAT FLUX
HEAT TRANSFER
MATHEMATICAL MODELS
NAVIER-STOKES EQUATIONS
NUSSELT NUMBER
PARTIAL DIFFERENTIAL EQUATIONS
PIPES
REYNOLDS NUMBER
STRESS ANALYSIS
THERMAL EXPANSION
TIME DEPENDENCE
TURBULENT FLOW
TWO-PHASE FLOW
WALLS