A Geometric Look at Momentum Flux and Stress in Fluid Mechanics
A Geometric Look at Momentum Flux and Stress in Fluid Mechanics
复制标题
流体力学中动量通量和应力的几何观察
DOI:
10.1007/s00332-023-09887-0
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发表时间:
2023
影响因子:
3
通讯作者:
Gilbert A
中科院分区:
文献类型:
--
作者:
Gilbert A
We develop a geometric formulation of fluid dynamics, valid on arbitrary Riemannian manifolds, that regards the momentum-flux and stress tensors as 1-form-valued 2-forms, and their divergence as a covariant exterior derivative. We review the necessary tools of differential geometry and obtain the corresponding coordinate-free form of the equations of motion for a variety of inviscid fluid models—compressible and incompressible Euler equations, Lagrangian-averaged Euler-equations, magnetohydrodynamics and shallow-water models—using a variational derivation which automatically yields a symmetric momentum flux. We also consider dissipative effects and discuss the geometric form of the Navier–Stokes equations for viscous fluids and of the Oldroyd-B model for visco-elastic fluids.
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影响因子:
0.9
作者:
A. Gilbert;X. Riedinger;J. Thuburn
通讯作者:
J. Thuburn
DOI:
10.1017/9781009253161
发表时间:
2023-02
期刊:
--
影响因子:
--
作者:
S. Hawking;G. Ellis
通讯作者:
S. Hawking;G. Ellis
影响因子:
3.7
作者:
E. Lindborg;A. Nordmark
通讯作者:
A. Nordmark
DOI:
10.1098/rsta.2015.0174
发表时间:
2016
期刊:
Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences
影响因子:
--
作者:
R. Segev
通讯作者:
R. Segev
影响因子:
27.7
作者:
R. Salmon
通讯作者:
R. Salmon