Relations between skin friction and other surface quantities in viscous flows
Relations between skin friction and other surface quantities in viscous flows
复制标题
粘性流中的表面摩擦力与其他表面量之间的关系
DOI:
10.1063/1.5120454
复制
发表时间:
2019
影响因子:
4.6
通讯作者:
Shiyi Chen
中科院分区:
文献类型:
--
作者:
Tao Chen;Tianshu Liu;Lian-Ping Wang;Shiyi Chen
This paper presents the derivations of the exact relations between skin friction and other important dynamical and kinematical quantities on a stationary curved surface in a viscous flow by applying the standard methods of differential geometry to the governing partial differential equations in fluid mechanics. In particular, the mathematical structures of the effects of the surface curvature are explicitly expressed, which extend the previous results on a flat surface. These relations reveal that skin friction is intrinsically coupled with surface pressure, temperature, and scalar concentration through the boundary enstrophy flux, heat flux, and mass flux, respectively. As an example, the relation between skin friction and surface pressure is examined in the Oseen flow over a sphere to elucidate the significant effect of the surface curvature at a very small Reynolds number. Two other validation examples are a gravity-driven creeping liquid film flow over a wavy surface and the FalknerSkan flow over a wedge. Furthermore, the relation is applied to a simulated turbulent channel flow to explore the local near-wall coherent structure and understand its dynamical roles in turbulence production. Published under license by AIP Publishing. https://doi.org/10.1063/1.5120454., s
登录
查看更多内容
DOI:
--
发表时间:
2015
期刊:
--
影响因子:
--
作者:
J. Jiménez
通讯作者:
J. Jiménez
DOI:
10.1016/j.physd.2004.02.008
发表时间:
2004-09
期刊:
Physica D: Nonlinear Phenomena
影响因子:
--
作者:
T. Bewley;B. Protas
通讯作者:
T. Bewley;B. Protas
DOI:
10.1088/1742-6596/506/1/012008
发表时间:
2014-04
期刊:
Journal of Physics: Conference Series
影响因子:
--
作者:
G. Eitel-Amor;O. Flores;P. Schlatter
通讯作者:
G. Eitel-Amor;O. Flores;P. Schlatter
DOI:
10.2514/6.1983-1735
发表时间:
1983-07
期刊:
--
影响因子:
--
作者:
U. Dallmann
通讯作者:
U. Dallmann
影响因子:
3.7
作者:
P. Moin;Jong-S. Kim
通讯作者:
P. Moin;Jong-S. Kim