choose a directory to solve a DSMC case
 

I found four subdirectories under the dsmcForm directory,

which is freeSpacePeriodic, freeSpaceStream, supersonicCorner, wedge15Ma5 respectively.

I try to simulate a case that an aircraft reentry the atmosphere at the speed of Ma20.

So which subdirectory under the dsmcFoam should I choose?

Thanks!