论文信息 - DNS of the Near-Wall Heat Transfer in the Flume and Channel

DNS of the Near-Wall Heat Transfer in the Flume and Channel

Direct Numerical Simulation (DNS) of fully developed turbulent flow in a flume and channel was used to study the heat transfer near the wall. Two different geometries for numerical simulations of turbulent heat transfer in infinite channel and flume were used. Reynolds number based on friction velocity, channel half height (or flume height) and kinematic viscosity was set to Reτ = 170.8, whereas the Prandtl number was set to unity, Pr = 1. The computational domain of 2146×341.6×537 wall units and 2146×170.8×537 wall units was used for channel geometry and flume geometry, respectively. Comparison of these two different geometries with the same physics, were highlighted and discussed.Copyright © 2004 by ASME

Iztok Tiselj | Robert Bergant | I. Tiselj | R. Bergant

[1] Thomas J. Hanratty,et al. Limiting behavior of turbulent scalar transport close to a wall , 2000 .

[2] J. Lumley,et al. A First Course in Turbulence , 1972 .

[3] Yuichi Matsuo,et al. DNS of turbulent heat transfer in channel flow with respect to Reynolds and Prandtl number effects , 1999 .

[4] Albert Mosyak,et al. Effect of wall boundary condition on scalar transfer in a fully developed turbulent flume , 2001 .

[5] P. Moin,et al. Turbulence statistics in fully developed channel flow at low Reynolds number , 1987, Journal of Fluid Mechanics.

[6] Hiroshi Kawamura,et al. DNS of turbulent heat transfer in channel flow with low to medium-high Prandtl number fluid , 1998 .

[7] N. Kasagi,et al. Direct Numerical Simulation of Passive Scalar Field in a Turbulent Channel Flow , 1992 .

[8] Sanjoy Banerjee,et al. On the condition of streak formation in a bounded turbulent flow , 1992 .

[9] Borut Mavko,et al. DNS of Turbulent Heat Transfer in Channel Flow With Heat Conduction in the Solid Wall , 2001 .