Add calculation of drag in a solver

EdP · May 23, 2018, 13:18

Hi everyone,

I'm doing a project in college with OpenFoam5.0 about cargo ship and I need to calculate the ship's drag, but I'm can't find where put the function. I'd like to know where (what folder) I put the drag function to realize the calculates. I'm using the solver DTCHull from tutorials InterFoam

AndreasPe · May 24, 2018, 03:07

Forces can be calculated with the "forces" and the typical drag and lift coefficients with the "force coefficients" function object. See for example this documentation:

https://www.openfoam.com/documentati...es-forces.html

https://www.openfoam.com/documentati...ce-coeffs.html

These function objects should exist in any openfoam version. Just add it in your controlDict and the results will be written in the log file as well as in a seperate file if you wish.

May 23, 2018, 13:18	Add calculation of drag in a solver	#1
EdP New Member Eduardo Join Date: May 2018 Posts: 1 Rep Power: 0	Hi everyone, I'm doing a project in college with OpenFoam5.0 about cargo ship and I need to calculate the ship's drag, but I'm can't find where put the function. I'd like to know where (what folder) I put the drag function to realize the calculates. I'm using the solver DTCHull from tutorials InterFoam

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May 24, 2018, 03:07		#2
AndreasPe Member Andreas P. Join Date: May 2017 Posts: 41 Rep Power: 9	Forces can be calculated with the "forces" and the typical drag and lift coefficients with the "force coefficients" function object. See for example this documentation: https://www.openfoam.com/documentati...es-forces.html https://www.openfoam.com/documentati...ce-coeffs.html These function objects should exist in any openfoam version. Just add it in your controlDict and the results will be written in the log file as well as in a seperate file if you wish.