A complete boundary integral formulation for incompressible Navier -Stokes equations with time discretization by operator splitting is developed using the fundamental solutions of the Helmholtz operator equation with different order. The numerical results for the lift and the drag hysteresis associa
Sufficient conditions for the regularity of the solutions of the Navier–Stokes equations
✍ Scribed by Luigi C. Berselli
- Publisher
- John Wiley and Sons
- Year
- 1999
- Tongue
- English
- Weight
- 101 KB
- Volume
- 22
- Category
- Article
- ISSN
- 0170-4214
No coin nor oath required. For personal study only.
✦ Synopsis
In this paper we "nd su$cient conditions, involving only the pressure, that ensure the regularity of weak solutions to the Navier}Stokes equations. Conditions involving only the pressure were previously obtained in [7,4]. Following a remark in this last reference we improve, in particular, Kaniel's result [7]. Our condition can be seen at the light of the heuristic idea that the pressure behaves similarly to the modulus squared of the velocity.
📜 SIMILAR VOLUMES
The application of standard multigrid methods for the solution of the Navier±Stokes equations in complicated domains causes problems in two ways. First, coarsening is not possible to full extent since the geometry must be resolved by the coarsest grid used. Second, for semi-implicit time-stepping sc
A computationally efficient multigrid algorithm for upwind edge-based finite element schemes is developed for the solution of the two-dimensional Euler and Navier -Stokes equations on unstructured triangular grids. The basic smoother is based upon a Galerkin approximation employing an edge-based for
An algorithm based on the finite element modified method of characteristics (FEMMC) is presented to solve convection-diffusion, Burgers and unsteady incompressible Navier -Stokes equations for laminar flow. Solutions for these progressively more involved problems are presented so as to give numerica