Numerical simulation of separated flow transition and heat transfer around a two‐dimensional rib

Hideki Yanaoka; Takao Inamura; Reiri Kobayashi

doi:10.1002/htj.20177

journal article Nov 06, 2007

Numerical simulation of separated flow transition and heat transfer around a two‐dimensional rib

Hideki Yanaoka Takao Inamura Reiri Kobayashi

Heat Transfer—Asian Research Vol. 36 No. 8 pp. 513-528 · Wiley

View at Publisher Save 10.1002/htj.20177

Abstract

AbstractNumerical simulations of separated flow transition and heat transfer around a two‐dimensional rib mounted in a laminar boundary layer were performed. The separated shear layer becomes unstable due to the Kelvin–Helmholtz instability and generates a two‐dimensional vortex. This vortex becomes three‐dimensional and collapses in the downstream part of the separation bubble. As a result, transition from laminar to turbulent flow occurs in the separated shear layer. Streamwise vortices exist downstream of the reattachment flow region. The low‐frequency flapping motion and transition of the separated shear layer are influenced by three‐dimensional dynamics upstream of the separation bubble. Large‐scale vortices around the reattachment flow region have substantial effects on heat transfer. Downstream of the reattachment point, the surface friction coefficient and Nusselt number are different from their profiles in the laminar boundary layer and approach the distributions seen in the turbulent boundary layer. © 2007 Wiley Periodicals, Inc. Heat Trans Asian Res, 36(8): 513–528, 2007; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/htj.20177

Topics

No keywords indexed for this article. Browse by subject →

References

19

[1]

10.1017/s0022112068000327

[2]

10.1017/s0022112086002306

[3]

10.1017/s0022112087001605

[4]

10.1016/s0167-6105(97)00074-3

[5]

10.1016/s0142-727x(00)00057-6

[6]

10.1017/s0022112090003317

[7]

10.1017/s0022112099007119

[8]

10.1017/s0022112001004633

[9]

10.1063/1.857955

[10]

Lilly DK "A proposed modification of the Germano subgrid‐scale closure model" Phys Fluids A (1994) 10.1063/1.858280

[11]

10.1016/0021-9991(70)90029-x

[12]

Okamoto S "Experimental investigation of blockage effect of upper wall of wind‐tunnel on wake of two‐dimensional flat plate" J Japan Soc Aeronaut Space Sci (1982)

[13]

10.1017/s0022112085001628

[14]

10.1016/0167-6105(81)90053-2

[15]

10.1017/s002211208300230x

[16]

10.1017/s002211208400149x

[17]

10.1115/1.2926496

[18]

10.1063/1.858208

[19]

Eaton JK "Low frequency unsteadiness of a reattaching turbulent shear layer" Turbulent Shear Flow (1981)

Cited By

5

Evolution of kinematic structure of the flow behind a transverse rib for transitional flow regimes

O. A. Dushina, V. M. Molochnikov · 2012

Thermophysics and Aeromechanics

Metrics

5

Citations

19

References

Details

Published: Nov 06, 2007
Vol/Issue: 36(8)
Pages: 513-528
License: View

Authors

Hirosaki University, Hirosaki 036, Japan

R

Reiri Kobayashi

Cite This Article

Hideki Yanaoka, Takao Inamura, Reiri Kobayashi (2007). Numerical simulation of separated flow transition and heat transfer around a two‐dimensional rib. Heat Transfer—Asian Research, 36(8), 513-528. https://doi.org/10.1002/htj.20177

Numerical simulation of separated flow transition and heat transfer around a two‐dimensional rib

You May Also Like