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Particle trajectory simulation in HVOF jet basedon measurement of the gas jet temperature


Peer-reviewed Papers

Authors: Dipl.-Ing. Marina Kühn-Kauffeldt, Dr. José-Luis Marqués, Dipl.-Ing. Stefan Kirner, Dr.-Ing. Stephan Zimmermann, Dr.-Ing. Günter Forster, Prof. Dr. Jochen Schein

Numerical simulation of particle trajectories within a supersonic hot gas flow requires a detailed and computationally intensive modeling of the gas jet. However it is possible to avoid this by using reconstruction of the local temperature distributions obtained by the emission computer tomography method instead. By knowing the gas flow injected into the torch, the local velocity and gas composition can be estimated from the reconstructed temperature distribution, outside as well as inside the torch. The thus reconstructed jet is subsequently used for numerically modeling the surface temperature, velocity and trajectory of particles injected into the gas flow. Here the simulation results are presented and compared with measured particle velocity data obtained by means of Laser Doppler Anemometry (LDA) in an equivalent HVOF torch.
Pages: 124 - 129
Ausgabe 2 (2013) Jahrgang 6 Page 124
Ausgabe 2 (2013) Jahrgang 6 Page 125
Ausgabe 2 (2013) Jahrgang 6 Page 126
Ausgabe 2 (2013) Jahrgang 6 Page 127
Ausgabe 2 (2013) Jahrgang 6 Page 128
Ausgabe 2 (2013) Jahrgang 6 Page 129

This article appeared in issue 2 (2013).

Issue 2 (2013) Volume 6
Thermal Spray Bulletin
Issue 2 (2013) Volume 6
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