vSAeroToolParametersType Complex Type |
Parameters for VSAero tool control
Namespace: Empty
Schema: Empty
Name | Occurrences | Description |
---|---|---|
All | ||
archiveMode | Archive mode for results. 0=nothing, 1=inputfiles, 2=all | |
panelings | Options and parameters for the mesh generation within VSAero | |
streamlines | [0, 1] | Generation of on-body streamlines. Required for viscous computation. Options: none: no streamlines (default); auto: automatic streamline generation |
trefftzComputation | [0, 1] | Selection, which of the total coefficients shall be taken from Trefftz-plane computation instead of the normal coefficients from pressure integration. Taking cfx from the Trefftz-plane in case of a viscous computation will still result in pure induced drag, but from the last viscous/potential flow iteration. Possible contents are: none: no values from Trefftz-computation (default), cfx: cfx-values from Trefftz-computation, cfz: cfz-values from Trefftz-computation, cfxcfz: cfx and cfz values from Trefftz-computation |
viscousComputation | [0, 1] | visciousComputationType |
Name | Type | Required | Description |
---|---|---|---|
externalDataDirectory | string | ||
externalDataNodePath | string | ||
externalFileName | string |
Parameters and options for running the VSAero tool.
This parameter specifies the amount of additional data, stored as result besides the resulting CPACS dataset. There are three options available:
This node contains parameters and options for the surface mesh generation within VSAero.
Generation of on-body streamlines. These streamlines are required for comutations including viscous drag. There are two options available:
This node switches on and off the viscous computation mode. If this node is missing completely, or if its subnode <iterations> is set to 0, the viscous computation mode is switched off. If <iterations> is > 0, viscous computations are performed (using the specified number of viscous - potential flow iterations). This feature requires the generation of on-body streamlines to be switched on as well. Furthermore, if the drag coefficients shall include viscous drag, CFX must not be taken from the Trefftz-plane (see below).
By default, the total coefficients are calculated by surface pressure integration. Using this option, CFX and CFZ can be calculated in the Trefftz-plane alternatively. This option typically provides results with better accuracy. Even when using this option, he local coefficient distributions are still based on the surface pressure integration. This results in some inconsistency, as the total values do no longer equal the sum of the local coefficients. If <viscousComputation> mode is used and CFX is taken from the Trefftz-plane, it incorporates the pure induced drag only. There are three options available: