A variational $\boldsymbol{H}({\rm div})$ finite-element discretization approach for perfect incompressible fluids
A variational $\boldsymbol{H}({\rm div})$ finite-element discretization approach for perfect incompressible fluids
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完美不可压缩流体的变分$oldsymbol{H}({ m div})$有限元离散方法
DOI:
10.1093/imanum/drx033
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发表时间:
2018
影响因子:
2.1
通讯作者:
Natale A
中科院分区:
文献类型:
--
作者:
Natale A
We propose a finite-element discretization approach for the incompressible Euler equations which mimics their geometric structure and their variational derivation. In particular, we derive a finite-element method that arises from a nonholonomic variational principle and an appropriately defined Lagrangian, where finite-elementvector fields are identified with advection operators; this is the first successful extension of the structure-preserving discretization of to the finite-element setting. The resulting algorithm coincides with the energy-conserving scheme proposed by . Through the variational derivation, we discover that it also satisfies a discrete analogous of Kelvin’s circulation theorem. Further, we propose an upwind-stabilized version of the scheme that dissipates enstrophy while preserving energy conservation and the discrete Kelvin’s theorem. We prove error estimates for this version of the scheme, and we study its behaviour through numerical tests.
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影响因子:
8.6
作者:
R. McLachlan
通讯作者:
R. McLachlan
DOI:
10.1016/0022-247x(71)90183-1
发表时间:
1971-01-01
影响因子:
1.3
作者:
BUTLER, G;ROGERS, T
通讯作者:
ROGERS, T
DOI:
10.1051/m2an/2013085
发表时间:
2013
期刊:
Mathematical Modelling and Numerical Analysis
影响因子:
--
作者:
H. Heumann;R. Hiptmair
通讯作者:
R. Hiptmair
DOI:
10.2172/1577437
发表时间:
2019-03
期刊:
--
影响因子:
--
作者:
S. Balay;S. Abhyankar;M. Adams;Jed Brown;P. Brune;K. Buschelman;Lisandro Dalcin;A. Dener;
通讯作者:
S. Balay;S. Abhyankar;M. Adams;Jed Brown;P. Brune;K. Buschelman;Lisandro Dalcin;A. Dener;
影响因子:
3
作者:
Patrick Mullen;A. McKenzie;D. Pavlov;L. Durant;Y. Tong;E. Kanso;J. Marsden;M. Desbrun
通讯作者:
M. Desbrun