local physics preconditioning mass matrixFinally, it is important to remark that while this kind of preconditioning produces stabilized results in nearly incompressible regimes the standard version exhibits some numerical drawbacks that lead to solutions without physical meaning....
and the parameternow has the meaning of theDebye length, which is the typical length scale of the interactions. The limitis called the quasineutral limit. The mean-field limitof the system (1.6) formally leads to the Vlasov–Poisson equation, as discussed above. Several authors [3,4,8,9,...
Less effort has been made to develop efficient methods for the treatment of the incompressibility constraint in elastodynamics. Since the underlying physics is wave propagation, fully explicit methods seem to be good candidates to obtain efficient schemes (this is possible for nearly-incompressible media...
Inviscid flow is a type of fluid flow where the fluid is considered to have zero viscosity, meaning that there is no internal friction between the fluid particles. This type of flow is commonly used in theoretical fluid dynamics calculations, as it simplifies the equations and allows for easier...
JournalofComputationalPhysicsAnAdaptiveFiniteVolumeMethodforIncompressibleHeatFlowProblemsinSolidification JournalofComputationalPhysics178,464–497(2002) doi:10.1006/jcph.2002.7037,availableonlineathttp://.idealibraryon AnAdaptiveFiniteVolumeMethod forIncompressibleHeatFlow ProblemsinSolidification C.W.Lan,C.C.Li...
Nigro N,Storti M,Idelsohn S, et al.Physics based GMRES preconditioner for compressible and incom- pressible Navier-Stokes equations.Computer Methods. 1998N. Nigro, M. Storti, S. Idelsohn, T. Tezduyar: Physics based GMRES preconditioner for compressible and incompressible Navier-Stokes equations....
The change in the meaning of dispersion relations during the transition from ideal liquids to viscous and from homogeneous to stratified is shown. Taking into account the influence of electric charge does not qualitatively change the nature of two-dimensional dispersion relations. An increase in the ...
However, in the case of the sufficiently dispersed flow, the two-fluid model results are still much closer to the real world than the results of the VOF method, which do not have any physical meaning when the grid becomes too coarse. Each model in the present work uses a separate set ...
It is shown that both formulations yield identical bases meaning that the first one may be used in a standard approach. However, it is also shown that when the incompressibility condition is applied by a Laplacian of pressure in the second formulation, some additional spurious EBFs may be ...
Finally, it is important to remark that while this kind of preconditioning produces stabilized results in nearly incompressible regimes the standard version exhibits some numerical drawbacks that lead to solutions without physical meaning.N. Nigro a...