黏弹性纳米流体湍流对流换热直接数值模拟.pdf

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JOURNAL OF ENGINEERING THERMOPHYSICS May, 2013
2013


1 1 1 1 1 2


(1.
150001
2.
(
)
102249)



Giesekus





: +3 :A : 0253–231X(2013)05–0961–04
Direct Numerical Simulation on Turbulent Convective Heat Transfer of
Viscoelastic-Fluid-Based Nanofluids
LI Dong-Yang1 LI Feng-Chen1 YANG Juan-Cheng1 ZHANG Hong-Na1
HE Yu-Rong1 YU Bo2
(1. School of Energy Science and Engineering, Harbin Institute of Technology, Harbin 150001, China;
2. School of Oil and Gas Engineering, China University of Petroleum (Beijing), Beijing 102249, China)
Abstract Direct numerical simulations of a turbulent heat transfer in a channel flow with a
Giesekus model have been carried out to investigate the characteristics of turbulent heat transfer of
a viscoelastic-fluid-based nanofluids flow. The fluid was assumed as single phase and temperature
was considered as a passive scalar. Compared to the viscoelastic base fluid flow, the heat transfer
enhancement for the viscoelastic-fluid-based nanofluids was obtained.
Key words nanofluids;JETP.