[mgz1985]

hi,

I have a macintosh and luckily openfoam-1.4.1 is running good on it. but i need to solve for lift and drag on a 2-d airfoil and the liftDrag solver is not there in my postprocessing utilities or src directory.

I wrote a code and wanted to add it to the utility but am unable to do so. It says the openfoam-1.4.1 can not be modified. Could anyone please tell me how to solve this problem?

thanx a lot.

[egp]

There are many ways to skin the cat, however, none of them have anything to do specifically with MacOSX (this really belongs in a force/moment/liftDrag/forceAndTorque/forces/forceCoeffs thread). Anyway, you can do the following:

1. write your own code

2. download the liftDrag class and the liftDrag post-processor from the forum. I think this stuff is from 1.2 vintage OF.

3. download and compile 1.4.1-dev from the openfoam-extend project. This includes forceAndTorque class which is compiled into a library ($(FOAM_LIBBIN)/libincompressiblePostProcessing) and can be called at runTime in the controlDict.

4. download and compile 1.5. This includes force and forceCoeffs classes which are compiled into a library ($(FOAM_LIBBIN)/libforces) which gives the same capability as was provided in 1.4.1-dev.

Eric