From Event: SPIE Optical Engineering + Applications, 2016
CTSP (Contamination Transport Simulation Program) is a simulation program for performing detailed molecular and particulate contaminant transport analyses using complex, CAD-generated geometries. CTSP concurrently traces many simulation macroparticles, allowing it to compute contaminant partial pressures. The code uses a detailed surface model that supports multiple trapped gases and a multi-component surface layer. The molecular residence time is computed by considering surface temperature and activation energies. This paper describes the implemented algorithms and demonstrates the code with several test cases. These include outgassing in a vacuum chamber, spacecraft venting, particulate transport in an air flow, and redistribution of paint flakes on an orbiting satellite. The paper is concluded by summarizing the on-going effort to parallelize the code and utilize GPUs, and to add support for electrostatic return modeling by computing space potential using Green's functions.
Lubos Brieda, "Contamination transport modeling with CTSP (Conference Presentation)," Proc. SPIE 9952, Systems Contamination: Prediction, Control, and Performance 2016, 995204 (Presented at SPIE Optical Engineering + Applications: August 31, 2016; Published: 12 December 2016); https://doi.org/10.1117/12.2235709.5169178130001.
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