Resume and remarks on the open boundary condition minisymposium
Abstract
The incompressible Navier-Stokes equations and their thermal convection and stratified flow analogue, the Boussinesq equations possess solutions in bounded domains only when appropriate/legitimate boundary conditions (BCs) are appended at all points on the domain boundary. When the boundary or, more commonly, a portion of it is not endowed with a Dirichlet BC, we are faced with selecting what are called open boundary conditions (OBCs), because the fluid may presumably enter or leave the domain through such boundaries. The two minisymposia on OBCs that are summarized in this paper had the objective, which of course is not really well-defined, was not met (we believe) but the contributions obtained probably raised many more questions/issues than were resolved-notable among them being the advent of a new class of OBCs that we call FBCs (fuzzy boundary conditions).
- Publication:
-
International Journal for Numerical Methods in Fluids
- Pub Date:
- May 1994
- DOI:
- 10.1002/fld.1650181006
- Bibcode:
- 1994IJNMF..18..983S
- Keywords:
-
- Boundary Conditions;
- Computational Fluid Dynamics;
- Convective Flow;
- Free Convection;
- Incompressible Flow;
- Problem Solving;
- Stratified Flow;
- Two Dimensional Flow;
- Boussinesq Approximation;
- Dirichlet Problem;
- Fuzzy Sets;
- Mathematical Models;
- Navier-Stokes Equation;
- Two Dimensional Models;
- Fluid Mechanics and Heat Transfer