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Struct2D
1.0
Solution of 2-D Euler- and Navier-Stokes Equations on Structured Grids
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Struct2D
1.0
Solution of 2-D Euler- and Navier-Stokes Equations on Structured Grids
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Variables related to the numerics.
Public Attributes | |
| character(1) | ktimst |
| switch between local (="L") and global (="G") time-stepping | |
| character(1) | lvort |
| far-field vortex correction ("Y"=yes, "N"=no) | |
| character(1) | kdissip |
| central scheme (="C") or Roe's upwind scheme (="R") | |
| character(1) | kprecond |
| low Mach-number preconditioning ("Y"=yes, "N"=no) | |
| integer | iorder |
| order of Roe's upwind scheme (1; 2: kappa=1/3 MUSCL scheme) | |
| integer | nrk |
| number of stages (Runge-Kutta scheme); max. = 5 | |
| integer | iextrapol |
| pressure extrapolation to solid walls (2- or 3-point formula) | |
| integer, dimension(5) | ldiss |
| dissipation evaluation per stage (0=no, 1=yes) | |
| real(rtype) | cfl |
| CFL-number. | |
| real(rtype) | epsirs |
| coefficient of implicit residual smoothing | |
| real(rtype) | vis2 |
| 2nd-order dissipation coefficient (central scheme) | |
| real(rtype) | vis4 |
| 4th-order dissipation coefficient (central scheme) | |
| real(rtype) | limfac |
| limiter coefficient (Roe's upwind scheme) | |
| real(rtype) | epsentr |
| entropy correction coefficient (Roe's upwind scheme) | |
| real(rtype) | precoeff |
| preconditioning parameter K (low Mach numbers) | |
| real(rtype), dimension(5) | ark |
| stage coefficients | |
| real(rtype), dimension(5) | betrk |
| dissipation-blending coefficients | |
| real(rtype) | maxwchg |
| max. relative change of density and density*E at slip walls More... | |
| real(rtype) | maxichg |
| max. relative change of density and density*E at injection boundaries More... | |
| real(rtype) | volref |
| reference volume More... | |
| real(rtype), dimension(4) | limref |
| reference values of density, u, v and pressure More... | |
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real(rtype), dimension(:,:,:), allocatable | cvold |
| conservative variables from previous time step | |
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real(rtype), dimension(:,:,:), allocatable | diss |
| artificial dissipation | |
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real(rtype), dimension(:,:,:), allocatable | rhs |
| residual (right-hand side) | |
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real(rtype), dimension(:,:), allocatable | sri |
| spectral radii in i-direction | |
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real(rtype), dimension(:,:), allocatable | srj |
| spectral radii in j-direction | |
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real(rtype), dimension(:,:,:), allocatable | epsij |
| coefficients of implicit residual smoothing (x-, y-direction) | |
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real(rtype), dimension(:,:), allocatable | tstep |
| time steps (without the CFL-number) | |
| real(rtype), dimension(:,:,:), allocatable | dui |
| 1st differences of primitive variables More... | |
| real(rtype), dimension(:,:,:), allocatable | duj |
| 1st differences of primitive variables More... | |
| real(rtype), dimension(:,:,:), allocatable | gradfi |
| gradients of velocity components and temperature More... | |
| real(rtype), dimension(:,:,:), allocatable | gradfj |
| gradients of velocity components and temperature More... | |
| real(rtype) | pi |
| 3.14... | |
| real(rtype) | rad |
| 180./pi | |
| real(rtype), dimension(:,:,:), allocatable modnumerics::dui |
Values of density, u, v, and pressure in the i-direction at the cell face I-1/2 (higher-order Roe scheme).
| real(rtype), dimension(:,:,:), allocatable modnumerics::duj |
Values of density, u, v, and pressure in the j-direction at the cell face J-1/2 (higher-order Roe scheme).
| real(rtype), dimension(:,:,:), allocatable modnumerics::gradfi |
Gradients with respect to the x- and y-coordinates at the cell faces I-1/2 (required for viscous flow).
| real(rtype), dimension(:,:,:), allocatable modnumerics::gradfj |
Gradients with respect to the x- and y-coordinates at the cell faces J-1/2 (required for viscous flow).
| real(rtype), dimension(4) modnumerics::limref |
Parameter is required for the computation of limiter functions (higher-order Roe scheme).
| real(rtype) modnumerics::maxichg |
When the relative change exceeds this value, extrapolation to the dummy cells at injection boundaries is reduced to 0th-order.
| real(rtype) modnumerics::maxwchg |
When the relative change exceeds this value, extrapolation to the dummy cells at walls is reduced to 0th-order.
| real(rtype) modnumerics::volref |
Parameter is required for the computation of limiter functions (higher-order Roe scheme).
1.8.6 
