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Contents
ISNaS - incompressible flow solver
Mathematical manual
Guus Segal
Hester Bijl
Kees Vuik
William Kuppen ?????
Marcel Zijlema
version 2.0 9-10-1996
Contents
Introduction
Some basic notations from tensor analysis
The metric tensor
The covariant derivative
The volume element
The divergence theorem in vector and tensor notation
Discretization of the geometrical quantities
2D-case
3D-case
Space discretization of the continuity and momentum equations
2D-case
3D-case
Space discretization of the transport equation
Invariant finite volume discretization
Invariant discretization on non-smooth grids
Approximation methods for convective flux
Diffusion flux approximation
Turbulence modeling and related numerical issues
Introduction
Two-equation eddy-viscosity models
Numerical aspects of two-equation eddy-viscosity modeling
Space discretization of the stress-strain model
Space discretization of the production term in two-equation models
2D implementation of low-Reynolds-number modeling
Implementation of the positive scheme for two-equation models
Implementation of the boundary conditions
Prescribed velocities
2D implementation
3D implementation
Stresses prescribed
2D implementation
3D implementation
Semi-natural outflow condition
2D implementation
3D implementation
Slip boundary condition
2D implementation
3D implementation
Transition of types of boundary conditions
2D implementation
3D implementation
Treatment of boundary conditions at the corners of the region
2D
3D
Edges
Boundary conditions for the transport equation
The wall function method
Time-discretization
Introduction
The -method
The solution algorithm
Pressure correction
Introduction
The pressure-correction method
The linear solver
Introduction
Survey of iterative methods
Preconditioning
Concluding remarks
Post-processing
Interpolation of scalars in 2D
Interpolation of the velocity in 2D
Computation of the stream function
References
Proof of () and ()
Proof of () and ()
Tatiana Tijanova
Wed Mar 26 10:36:42 MET 1997