Heat transfer from a particle in laminar flows of a variable thermal conductivity fluid
Heat transfer from a particle in laminar flows of a variable thermal conductivity fluid
复制标题
可变导热系数流体层流中颗粒的传热
DOI:
10.1016/j.ijheatmasstransfer.2021.121067
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发表时间:
2021
影响因子:
5.2
通讯作者:
Masoud, Hassan
中科院分区:
文献类型:
--
作者:
Dehdashti, Esmaeil;Razizadeh, Meghdad;Masoud, Hassan
We revisit the classical problem of steady-state heat transfer from a single particle in a uniform laminar flow with the assumption that the thermal conductivity of the fluid changes linearly with the temperature. We use a combination of asymptotic and scaling analyses to derive approximate expressions for the dimensionless heat transfer coefficient, ie, the Nusselt number Nu, of arbitrarily shaped particles. The results cover the entire range of the Peclet number Pe. We find that, for a constant temperature boundary condition and fixed geometry, the Nusselt number is essentially equal to the product of two terms, one of which is only a function of Pe while the other one is nearly independent of Pe and mainly depends on the proportionality constant of the conductivity-temperature relation. We also show that, in contrast, when a uniform heat flux is imposed on the surface of the particle, Nu can be estimated as a summation of a Pe-dependent piece and one that solely varies with the proportionality constant.
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DOI:
--
发表时间:
1990
期刊:
影响因子:
--
作者:
A. Polyanin;V. V. Dil’man
通讯作者:
V. V. Dil’man
DOI:
10.1115/1.4046590
发表时间:
2018-11
期刊:
Journal of Heat Transfer
影响因子:
--
作者:
Esmaeil Dehdashti;Hassan Masoud
通讯作者:
Esmaeil Dehdashti;Hassan Masoud
DOI:
--
发表时间:
2017
期刊:
影响因子:
--
作者:
Lauren M. Relyea;Aditya S. Khair
通讯作者:
Aditya S. Khair
影响因子:
3.7
作者:
ACRIVOS, A;GODDARD, JD
通讯作者:
GODDARD, JD
影响因子:
2.8
作者:
Ezzat, Magdy A.
通讯作者:
Ezzat, Magdy A.