Convection Velocity of Temperature Fluctuations in a Turbulent Flume-Reference-Cited by-同舟云学术

Convection Velocity of Temperature Fluctuations in a Turbulent Flume

Published:2004-10-01 Issue:5 Volume:126 Page:843-848
ISSN:0022-1481
Container-title:Journal of Heat Transfer
language:en
Short-container-title:

Author:

Hetsroni G.¹,Tiselj and I.²,Bergant R.²,Mosyak and A.¹,Pogrebnyak E.¹

Affiliation:

1. Department of Mechanical Engineering, Technion—Israel Institute of Technology, 3200 Haifa, Israel

2. “Jozˇef Stefan” Institute, Jamova 39, 1000 Ljubljana, Slovenia

Abstract

A numerical investigation of the temperature field in a turbulent flume is presented. We consider the effect of the Prandtl number on the convection velocity of temperature fluctuations in a turbulent boundary layer, and focus also on the effect of the Prandtl number on the connection between the velocity and the temperature fluctuations. Close to the wall, y+<2, convection velocities of the temperature fluctuations decrease with an increase in the Prandtl number, i.e., the scale dependence becomes significantly important. In the region y+<2 the relation of the convection velocity of the temperature fluctuation to that of the velocity fluctuation may be expressed as UcT+=Ucu+Pr−1/3 and Ucq+=Ucu+Pr−1/2 for isothermal and isoflux wall boundary condition, respectively.

Publisher

ASME International

Subject

Mechanical Engineering,Mechanics of Materials,Condensed Matter Physics,General Materials Science

Link

http://asmedigitalcollection.asme.org/heattransfer/article-pdf/126/5/843/5914361/843_1.pdf

Reference19 articles.

1. Calmet, I., and Magnaudet, J., 1997, “Large-Eddy Simulation of High Schmidt Number Mass Transfer in a Turbulent Channel Flow,” Phys. Fluids, 9(2), pp. 438–455.

2. Dong, Y. H., Lu, X. Y., and Zhuang, L. X., 2003, “Large Eddy Simulation of Turbulent Channel Flow With Mass Transfer at High Schmidt Numbers,” Int. J. Heat Mass Transfer, 46, pp. 1529–1539.

3. Yeung, P. K., Sykes, M. C., and Vedula, P., 2000, “Direct Numerical Simulation of Differential Diffusion With Smidt Numbers up to 4.0,” Phys. Fluids, 12, pp. 1601–1604.

4. Na, Y., Papavassiliou, D. V., and Hanratty, T. J., 1999, “Use of Direct Numerical Simulation to Study the Effect of Prandtl Number on Temperature Field,” Int. J. Heat Fluid Flow, 20, pp. 187–195.

5. Kawamura, H., Abe, Y., and Matsuo, Y., 1999, “DNS of Turbulent Heat Transfer With Respect to Reynolds and Prandtl Number Effects,” Int. J. Heat Fluid Flow, 20, pp. 196–207.

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