An Effective Approach to Computation of Forces in Viscous Incompressible Flows
✍ Scribed by B. Protas; A. Styczek; A. Nowakowski
- Publisher
- Elsevier Science
- Year
- 2000
- Tongue
- English
- Weight
- 144 KB
- Volume
- 159
- Category
- Article
- ISSN
- 0021-9991
No coin nor oath required. For personal study only.
✦ Synopsis
In the paper we present an effective method to compute forces in external flows of viscous incompressible fluids. It is an extension of the variational approach proposed initially by Quartapelle and Napolitano (1983, AIAA J. 21, 911) and is particularly well adapted to the case where a vortex method is used to solve the hydrodynamic problem. The derived formula involves a harmonic function η and a convenient method for its determination is also shown. The effectiveness of the presented approach is confirmed by computational examples.
📜 SIMILAR VOLUMES
We show that a non-physical velocity may appear in the numerical computation of the ¯ow of an incompressible ¯uid subjected to external forces. A distorted mesh and the use of a numerical method which does not rigorously ensure the incompressibility condition turn out to be responsible for this phen
## Abstract Time‐dependent incompressible Navier–Stokes equations are formulated in generalized non‐inertial co‐ordinate system and numerically solved by using a modified second‐order Godunov‐projection method on a system of overlapped body‐fitted structured grids. The projection method uses a seco
The effect of transverse magnetic field parameter (Hartmann number, Ha), Reynolds number (Re) and Prandtl number (Pr) on the mixed convection flow past a semi-infinite vertical porous plate in a non-Darcian porous medium with variable viscosity and porosity, viscous dissipation and fluid-solid therm