[iyidaniel@yahoo.co.uk]

Hi all,

Please is there anyone in the house that can assist me with a good CFD Software? I am trying to simulate cold flow over a hot surface of an Apollo/Orion heatshield but using a prototype of 50 millimetres in diameter.

I have tried some couple of software but all efforts proved abortive. Here are some limitations: ANSYS does not give a good precision of the surface recession that is associated with ablation species; OPENFOAM seems to be hectic and some open packages are missing for thermo-physics and surface recession; SimFlow cannot perform ablation studies; Eilmer cannot perform ablation studies; I do not have access to many other ablation software used by NASA and ESA because I am not an American citizen.

Please see attachment for the physical explanations. Any suggestion will be highly appreciated. Even if I am buying a software, it should not be too expensive because it is for my personal research and academic purpose.
Thank you.

[arjun]

What do you mean by surface recession here? The material will be removed and surface goes back. Is this correct?

[iyidaniel@yahoo.co.uk]

Yeah you're absolutely correct. Materials removed and surface goes back, leading to a decreased thickness.