|
[Sponsors] |
July 23, 2020, 18:11 |
Calculating Aerodynamic Forces and Moments
|
#1 |
New Member
Peter
Join Date: May 2019
Posts: 13
Rep Power: 7 |
Hi,
Do you know a book or paper which describes the following lines? Code:
for (iDim = 0; iDim < nDim; iDim++) { TauElem[iDim] = 0.0; for (jDim = 0; jDim < nDim; jDim++) { TauElem[iDim] += Tau[iDim][jDim]*UnitNormal[jDim]; } } /*--- Compute wall shear stress (using the stress tensor). Compute wall skin friction coefficient, and heat flux on the wall ---*/ TauNormal = 0.0; for (iDim = 0; iDim < nDim; iDim++) TauNormal += TauElem[iDim] * UnitNormal[iDim]; WallShearStress = 0.0; for (iDim = 0; iDim < nDim; iDim++) { TauTangent[iDim] = TauElem[iDim] - TauNormal * UnitNormal[iDim]; CSkinFriction[iMarker][iDim][iVertex] = TauTangent[iDim] / (0.5*RefDensity*RefVel2); WallShearStress += TauTangent[iDim] * TauTangent[iDim]; } WallShearStress = sqrt(WallShearStress); I would like to calculate the drag and lift coefficients on my own using the CSkinFriction and Pressure_Coefficient. But I have some trouble to find the right equation to do so. Do you know some document where it is described? Kind regards, Peter |
|
Thread Tools | Search this Thread |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
The CoP Does not exist: Validating Aerodynamic forces through a "line of action" | ds4719 | Main CFD Forum | 14 | February 18, 2022 19:05 |
Turbine's forces and moments for post processing | mxylondon | OpenFOAM Post-Processing | 1 | April 3, 2019 08:30 |
Residuals and forces spiraling out of control before failing | edomalley1 | OpenFOAM Running, Solving & CFD | 3 | September 7, 2018 11:42 |
Workbench 12.1 reaction forces and moments in response spectrum | KOHCTPYKTOP | ANSYS | 0 | November 12, 2011 05:42 |
Compute CEs from moments and forces | nico | Main CFD Forum | 1 | August 6, 2007 20:19 |