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Develop #140

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35e8996
Merge pull request #122 from su2code/master
pcarruscag Feb 6, 2023
3283e9a
paraview live tutorial
bigfooted Feb 26, 2023
75fbb2c
remove tmp file
bigfooted Feb 26, 2023
7ef9283
Merge pull request #126 from su2code/paraview_live
bigfooted Feb 27, 2023
c6390df
add description of combustion model
bigfooted Mar 13, 2023
75d38c5
Update Slope-Limiters-and-Shock-Resolution.md
aeroamit Apr 8, 2023
4c6ed26
Merge pull request #131 from aeroamit/patch-1
pcarruscag Apr 8, 2023
6112401
cusp was removed, bounded scalar was added, use vectorization is auto…
pcarruscag Apr 10, 2023
a3c2fd5
Merge pull request #132 from su2code/update_convective_scheme_docs
pcarruscag Apr 13, 2023
680f08c
Added incompressible flow menu V&V, created file for new V&V case.
Jun 10, 2023
f239c88
added file for new V&V case
Jun 10, 2023
d949024
Added file for new V&V case as .md
Jun 10, 2023
aa5d260
First draft SANDIA jet V&V
Jun 10, 2023
38ad2b0
Updated SANDIA V&V
Jun 10, 2023
4d2292d
Updated figures
Jun 10, 2023
2644068
Small changes
Jun 16, 2023
8c50d0d
schematic overview included
Jun 16, 2023
d0654d8
adjusted
Jun 16, 2023
ffab83e
update flamelet description
bigfooted Jun 23, 2023
fb55a40
Merge pull request #129 from su2code/doc_combustion
bigfooted Jun 23, 2023
e3c901c
overhaul Quick Start tutorial
frx-wintermute Jun 26, 2023
a2143ff
figures adjusted
Jun 27, 2023
34c20ae
adjusted setup figure
Jun 27, 2023
b333b6b
adjusted setup fig
Jun 27, 2023
6cf52dd
do not add Quick Start tutorial source files
frx-wintermute Jul 2, 2023
b67c18b
update links in the Quick Start tutorial
frx-wintermute Jul 11, 2023
c96bf82
Merge pull request #135 from sjhbtue/feature_validation_sandia_jet
Cristopher-Morales Jul 15, 2023
76b51c7
Merge pull request #134 from frx-wintermute/improve_quickstart_tutorial
pcarruscag Jul 15, 2023
d06a56d
update version name
pcarruscag Aug 7, 2023
5ade274
Merge pull request #138 from su2code/prepare_for_v8
pcarruscag Aug 7, 2023
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4 changes: 4 additions & 0 deletions _data/tutorials.yml
Original file line number Diff line number Diff line change
Expand Up @@ -54,6 +54,10 @@
- Unsteady_Shape_Opt_NACA0012
- Species_Transport

- title: Workflow Setup
tutorials:
- paraview_live

- title: Event Content
tutorials:
- event_content
4 changes: 4 additions & 0 deletions _data/vandv.yml
Original file line number Diff line number Diff line change
Expand Up @@ -11,3 +11,7 @@
- 30p30n
- swbli
- LM_transition

- title: Incompressbile Flow
vandv:
- SANDIA_jet
34 changes: 15 additions & 19 deletions _docs_v7/Convective-Schemes.md
Original file line number Diff line number Diff line change
Expand Up @@ -32,7 +32,7 @@ To achieve second-order in space, upwind schemes need to be used with MUSCL reco

| Solver | Version |
| --- | --- |
| `EULER`, `NAVIER_STOKES`, `RANS` | 7.0.0 |
| `EULER`, `NAVIER_STOKES`, `RANS` | 8.0.0 |

### Central Schemes ###

Expand All @@ -46,9 +46,7 @@ In implicit time marching it improves the numerical properties of the Jacobian m
To maintain CFL at lower-than-default values of dissipation coefficients, a higher factor should be used.
`JST_MAT` benefits from higher values (~8.0).

All compressible central schemes support vectorization (`USE_VECTORIZATION= YES`) with no robustness downsides, see the build instructions for how to tune the compilation for maximum vectorization performance.

**Note:** The Lax-Friedrich scheme is always used on coarse multigrid levels when any central scheme is selected.
**Note:** The Lax-Friedrich scheme is always used on coarse multigrid levels when any central scheme is selected. All compressible central schemes use vectorization, see the build instructions for how to tune the compilation for maximum performance.

### Upwind Schemes ###

Expand All @@ -62,28 +60,25 @@ All compressible central schemes support vectorization (`USE_VECTORIZATION= YES`
- `SLAU` - Simple Low dissipation AUSM scheme;
- `SLAU2` - SLAU with the alternative pressure flux formulation;
- `HLLC` - Harten-Lax-van Leer-Contact;
- `CUSP` - Convective Upwind Split Pressure;
- `MSW` - Modified Steger-Warming.

Some of the schemes above have tunning parameters or accept extra options, the following table lists those options and indicates to which schemes they apply (if a scheme does not appear on the table, no options apply to it).

| Option \ Scheme | `ROE` | `L2ROE` | `TURKEL_PREC` | `AUSMPLUSUP[2]` | `SLAU[2]` | `HLLC` | `CUSP` |
| --------------------------------- | ----- | ------- | ------------- | --------------- | --------- | ------ | ------ |
| **`ROE_KAPPA`** | X | X | X | | | X | |
| **`ENTROPY_FIX_COEFF`** | X | X | X | | | | X |
| **`ROE_LOW_DISSIPATION`** | X | | | | X | | |
| **`USE_ACCURATE_FLUX_JACOBIANS`** | | | | X | X | | |
| **`MIN/MAX_ROE_TURKEL_PREC`** | | | X | | | | |
| **`USE_VECTORIZATION`** | X | | | | | | |
| Option \ Scheme | `ROE` | `L2ROE` | `TURKEL_PREC` | `AUSMPLUSUP[2]` | `SLAU[2]` | `HLLC` |
| --------------------------------- | ----- | ------- | ------------- | --------------- | --------- | ------ |
| **`ROE_KAPPA`** | X | X | X | | | X |
| **`ENTROPY_FIX_COEFF`** | X | X | X | | | |
| **`ROE_LOW_DISSIPATION`** | X | | | | X | |
| **`USE_ACCURATE_FLUX_JACOBIANS`** | | | | X | X | |
| **`MIN/MAX_ROE_TURKEL_PREC`** | | | X | | | |

- `ROE_KAPPA`, default 0.5, constant that multiplies the left and right state sum;
- `ENTROPY_FIX_COEFF`, default 0.001, puts a lower bound on dissipation by limiting the minimum convective Eigenvalue to a fraction of the speed of sound. Increasing it may help overcome convergence issues, at the expense of making the solution sensitive to this parameter.
- `ROE_LOW_DISSIPATION`, default `NONE`, methods to reduce dissipation in regions where certain conditions are verified, `FD` (wall distance based), `NTS` (Travin and Shur), `FD_DUCROS` and `NTS_DUCROS` as before plus Ducros' shock sensor;
- `USE_ACCURATE_FLUX_JACOBIANS`, default `NO`, if set to `YES` accurate flux Jacobians are used instead of Roe approximates, slower on a per iteration basis but in some cases allows much higher CFL values to be used and therefore faster overall convergence;
- `MIN_ROE_TURKEL_PREC` and `MAX_ROE_TURKEL_PREC`, defaults 0.01 and 0.2 respectively, reference Mach numbers for Turkel preconditioning;
- `USE_VECTORIZATION`, default `NO`, if `YES` use the vectorized (SSE, AVX, or AVX512) implementation which is faster but may be less robust against initial solution transients.

**Note:** Some schemes are not compatible with all other features of SU2, the AUSM family and CUSP are not compatible with unsteady simulations of moving grids, non-ideal gases are only compatible with the standard Roe and HLLC schemes.
**Note:** Some schemes are not compatible with all other features of SU2, the AUSM family is not compatible with unsteady simulations of moving grids, non-ideal gases are only compatible with the standard Roe and HLLC schemes. The only upwind scheme that uses vectorization is the Roe scheme (ideal gas only), see the build instructions for how to tune the compilation for maximum performance.

## Incompressible Flow ##

Expand All @@ -99,12 +94,13 @@ Some of the schemes above have tunning parameters or accept extra options, the f

`FDS` - Flux Difference Splitting with low speed preconditioning, this scheme does not have tuning parameters.

## Turbulence Equations ##
## Turbulence and Scalar/Species Equations ##

| Solver | Version |
| --- | --- |
| `RANS`, `INC_RANS` | 7.0.0 |
| `RANS`, `INC_RANS` | 8.0.0 |

Only one method is currently available: `SCALAR_UPWIND` which must be selected via option `CONV_NUM_METHOD_TURB`.
This method does not have any special parameters.
For compressible flows the only method available is `SCALAR_UPWIND` which must be selected via option `CONV_NUM_METHOD_TURB`.
For incompressible flows the `BOUNDED_SCALAR` method is also available, this includes a divergence correction to prevent spurious production/destruction of the transported scalar while convergence is not reached.
These methods do not have any special parameters.

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