Control file commands for the HB solver.

WriteAcousticModes

Writes the computed eigenvalues and eigenvectors of acoustic modes for all panel groups with acoustic modes into TECPLOT-.dat format (ASCII).

Usage: WriteAcousticModes <prefix>

Parameters

prefix Path and file name prefix of the acoustic mode files.

Domain: all

Example: all immediate WriteAcousticModes ../output/acousticMode

Since: 7.3

SetTemporalDampingFactor

Specify damping factor to stabilize integration of the flow variables in the HB solver.

Usage: SetTemporalDampingFactor <factor>

Parameters

factor damping factor, default: 1.e-3

Domain: all, component, stage, group, blockGroup, block

Example: all immediate SetTemporalDampingFactor 1.e-2

Since: 8.1

SetTemporalDampingFactorTP

Specify damping factor to stabilize the integration of the transport variables in the HB solver.

Usage: SetTemporalDampingFactorTP <factor>

Parameters

factor damping factor, default: 1.e-3

Domain: all, component, stage, group, blockGroup, block

Example: all immediate SetTemporalDampingFactorTP 1.e-2

Since: 8.1

ImplictBCImplementation

Specifies which implementation of the implicit boundary condition is used by the solver.

Usage: ImplictBCImplementation <implementation>

Parameters

implementation keyword for implementation, can be one of:

None
Do not use implicit boundary conditions.
Numerical
Use numerically computed boundary operators as implemented in the matrix interfaces.
Nonlinear
Use the implicit boundary condition implementation from the nonlinear solver. Only a very small subset of the possible combinations of integration methods and solid boundary conditions result in an implicit treatment here.
NLHB
Use the new implementation of implicit boundary condition.

Domain: all, component, stage, group, blockGroup, block

Example: all immediate ImplictBCImplementation NLHB

Note: If enabled implicit boundary conditions are applied at all solid boundaries. Furthermore. at interfaces, entry and exit implicit GILES1 boundary conditions can be activated via the ChgPanelAtt command and the option-IMPLICIT_BC. The default is to use no implicit boundary conditions here. If ImplictBCImplementation is not specified in the control file no implicit boundary conditions are applied at all, corresponding to "ImplictBCImplementation None".

Since: 8.0

addHarmonicSet

Defines a harmonic set.

Usage: addHarmonicSet [options]

Options:

long option	short option	arguments	description
`--frequency`	`-f`	number	fundamental frequency of the harmonic set
	`-ibpa`	number	interblade phase angle for the fundamental frequency
`--harmonicList`	`-hl`	list of integers	list of orders of harmonics. May include the zeroth harmonic if the steady solution has to be computed.
`--metricTimeDependent`	`-mtd`		specifies that the geometry is time dependent
`--name`	`-n`	name	name of the harmonic set (optional). If not given the default name is <block group name>_<harmonic set index>
`--samplingPointsFile`	`-spf`	filename	file containing user-defined sampling points (optional)

Domain: all, blockGroup

Example: group 3 immediate addHarmonicSet --frequency 32000 -ibpa -72.0 -hl 0 1

group 0 immediate addHarmonicSet --frequency 16000 -ibpa 180 -hl 1 -spf SamplingPoints_row01-1.input

Note: Can only be used at immediate level.

Since: 8.0

removeHarmonicSets

Removes all harmonic sets.

Usage: removeHarmonicSets

Domain: all, blockGroup

Since: 9.1

computeTpVarHarmonics

Activate solution of higher harmonics of the transport variables in the HB solver.

Usage: computeTpVarHarmonics

Domain: all, blockGroup

Since: 8.0

DeactivateHigherHarmonicsGammaReTheta

Disables higher harmonics for gamma and ReTheta in the HB solver.

Usage: DeactivateHigherHarmonicsGammaReTheta

Domain: all, blockGroup

Since: 8.1

DeactivateLapackPseudoInverse

Disables the calculation of the pseudo inverse with LAPACK and use the default left inverse.

Usage: DeactivateLapackPseudoInverse

Domain: all, blockGroup

Since: 9.1

SetNumberOfSamplingPointsForHighestHarmonic

Specifies number of time instances used to decompose the highest harmonic.

Usage: SetNumberOfSamplingPointsForHighestHarmonic <number>

Parameters

number integer number, default: 3

Domain: all, blockGroup

Example: all immediate SetNumberOfSamplingPointsForHighestHarmonic 5

Since: 8.0

UsePassageIndicesForSampling

Use real integer passage indices for sampling of clocking modes instead of the computationally less expensive approximation (=default).

Usage: UsePassageIndicesForSampling

Domain: all, blockGroup

Example: all immediate UsePassageIndicesForSampling

Since: 9.4

SetMdftNorm

Set norm aka p-norm for defining the frequency combinations used within the MDFT approach: a number (integer or float) in the interval [1, infinity[ defining the p-norm order has to be provided (default: infinity/maximum norm).

Usage: SetMdftNorm <p-norm order>

Domain: all, blockGroup

Example: all immediate SetMdftNorm 1

Since: 9.5

SetFilter

Specifies filter settings for reconstruction from frequency to time domain. Currently available filter methods: Lanczos. Filtering enabled for both primitive and turbulence/transition quantities. Default value for filter amplification (integer value specified after quantities to be filtered) is 3. Lower values increase stability but imply a higher attenuation of unsteadiness in the considered quantities.

Usage: all immediate SetFilter Lanczos Transport 3

Domain: all, blockGroup

Example: all immediate computeTpVarHarmonics

all immediate SetFilter Lanczos Transport 3

RobustHarmonicUpdate

Specifies method by which harmonics are update every pseudotime step. Currently three modes are implemented:

"Off" (default)
"Cyclic": at each pseudotime-step only one higher harmonic is actually updated. The other ones (except the mean flow) are frozen.
"ResidualWeighted": the update of each harmonic is multiplied by the ratio of its own L1 residual and the maximum L1 residual among all harmonics.

Usage: all immediate RobustHarmonicUpdate [Off|Cyclic|ResidualWeighted]

Domain: all, blockGroup

Since: 9.6