This paper aims to check the informative value of two fluid dynamic computer programs (CFD) for predicting correct trends with regard to different particle speeds and temperatures under changing operating conditions. The variety of numerical models demands a theoretical understanding of the atmospheric plasma spraying process as well as an experience of CFD. An investigation was carried out according to a simple test plan with two different operating parameters, current strength and gas flow rate. The result from the two calculations show a different degree of accuracy for both calculation models but allow a sufficient prediction of tendencies and can be used to optimize and control atmospheric plasma spray processes in industrial applications. The results were compared with experimental data and specifically the more advanced model was found capable of predicting the variation in particle characteristics when operating conditions where varied. Paper includes a German-language abstract.

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