𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Boundary Conditions for Viscous Vortex Methods

✍ Scribed by P. Koumoutsakos; A. Leonard; F. Pépin

Publisher
Elsevier Science
Year
1994
Tongue
English
Weight
408 KB
Volume
113
Category
Article
ISSN
0021-9991

No coin nor oath required. For personal study only.

✦ Synopsis

This paper presents a Neumann-type vorticity boundary condition for the vorticity formulation of the Navier-Stokes equations. The vorticity creation process at the boundary, due to the no-slip condition, is expressed in terms of a vorticity flux. The scheme is incorporated then into a Lagrangian vortex blob method that uses a particle strength exchange algorithm for viscous diffusion. The no-slip condition is not enforced by the generation of new vortices at the boundary but instead by modifying the strength of the vortices in the vicinity of the boundary. t. 1994 An:itwemic Pross. Inc.

📜 SIMILAR VOLUMES

A BOUNDARY ELEMENT METHOD FOR VISCOUS GR
A BOUNDARY ELEMENT METHOD FOR VISCOUS GRAVITY CURRENTS
✍ S. Betelú; J. Diez; L. Thomas; R. Gratton; B. Marino 📂 Article 📅 1997 🏛 John Wiley and Sons 🌐 English ⚖ 379 KB 👁 2 views

The viscous gravity spreading of a blob of ¯uid on a rigid, horizontal, no-slip surface is studied numerically by applying the boundary-element method to the Stokes equation in plane symmetry. The two-dimensional unsteady solution is obtained by solving the biharmonic equation for the streamfunction

AN ARTIFICIAL BOUNDARY CONDITION FOR TWO
AN ARTIFICIAL BOUNDARY CONDITION FOR TWO-DIMENSIONAL INCOMPRESSIBLE VISCOUS FLOWS USING THE METHOD OF LINES
✍ HOUDE HAN; WEIZHU BAO 📂 Article 📅 1996 🏛 John Wiley and Sons 🌐 English ⚖ 397 KB 👁 2 views

We design an artificial boundary condition for the steady incompressible Navier-Stokes equations in streamfhction-vorticity formulation in a flat channel with slip boundary conditions on the wall. The new boundary condition is derived fiom the Oseen equations and the method of lines. A numerical exp