0
TECHNICAL PAPERS: Multiphase Flow and Heat Transfer

Direct Numerical Simulation of Turbulent Heat Transfer Across a Mobile, Sheared Gas-Liquid Interface

[+] Author and Article Information
D. Lakehal, M. Fulgosi, G. Yadigaroglu

Institute of Energy Technology, Swiss Federal Institute of Technology, ETH-Zentrum/CLT, CH-8092 Zurich, Switzerland

S. Banerjee

Department of Chemical Engineering, University of California, Santa Barbara, CA 93106, USA

J. Heat Transfer 125(6), 1129-1139 (Nov 19, 2003) (11 pages) doi:10.1115/1.1621891 History: Received July 17, 2002; Revised June 18, 2003; Online November 19, 2003
Copyright © 2003 by ASME
Your Session has timed out. Please sign back in to continue.

References

Figures

Grahic Jump Location
Geometry of the simulated two-phase flow
Grahic Jump Location
Energy spectra at z+=5 for the velocity components, in the gas phase: (a) streamwise direction; and (b) spanwise direction.
Grahic Jump Location
Saturation spectra of the wave fields at the beginning (Bin) and at the end (Bout) of the sampling period
Grahic Jump Location
Mean temperature profiles. (a) Comparison with other DNS databases. Lines are used to identify the present DNS result: –, Pr=1; [[dashed_line]], Pr=5; -⋅-⋅-, Pr=10. Symbols identify respectively: +, Pr=1 and ×, Pr=5: DNS of Kawamura et al. 5; ○, Pr=1 and □, Pr=5: DNS of Tiselj et al. 21; ▵, Pr=10: DNS of Na et al. 7. (b) Present DNS extrapolated data; lines are used to identify present DNS results and symbols to identify the fitting equations.
Grahic Jump Location
Root mean square value of temperature fluctuations. Lines are used to identify the present DNS result: –, Pr=1; [[dashed_line]], Pr=5; -⋅-⋅-, Pr=10. Symbols identify respectively: +, Pr=1 and ×, Pr=5: DNS of Kawamura et al. 5; ○, Pr=1 and □, Pr=5: DNS of Tiselj et al. 21; ▵, Pr=10: DNS of Na et al. 7.
Grahic Jump Location
Streamwise turbulent heat flux and comparison with Kawamura et al. 5
Grahic Jump Location
Interface-normal turbulent heat flux: (a) boundary layer; and (b) near interface/wall region and comparison with Kawamura et al. 5.
Grahic Jump Location
Heat transfer coefficient
Grahic Jump Location
The elevation of the waves is amplified by factor 10: (a) u+ at z+=12; (b) interfacial Shear Stress; (c) θ+ at z+=12, Pr=1; (d) interfacial HTC, Pr=1; (e) θ+ at z+=12, Pr=5; (f) interfacial HTC, Pr=5; (g) θ+ at z+=12, Pr=10; and (h) interfacial HTC, Pr=10.
Grahic Jump Location
Budget for the temperature variance in the near interface/wall region. Lines are used to identify the results of the present DNS and symbols to identify the wall-bounded DNS results of Kawamura et al. 5. (a) Pr=1; (b) Pr=5; (c) Pr=10.
Grahic Jump Location
Budget for the vertical turbulent heat flux in the near interface/wall region. Lines are used to identify the results of the present DNS and symbols to identify the wall-bounded DNS results of Kawamura et al. 5. (a) Pr=1; (b) Pr=5; (c) Pr=10.
Grahic Jump Location
(a) Turbulent diffusivity; and (b) Turbulent diffusivity in the vicinity of the deformable interface.

Tables

Errata

Discussions

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related Journal Articles
Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In