Optimal Design of Nozzle for Supersonic Atmosphere Plasma Spraying
Source abstract
Abstract
Abstract Through numerical simulation, key issues concerning the plasma jet features as well as the sizes of nozzle for supersonic atmosphere plasma spraying (SAPS) were analyzed in this paper. Numerical results were compared with the experimental measurements and a good agreement has been achieved. Due to the effect of mechanical compression, the increasing sizes ofr1,r2,r3andr4(r1,r2,r3andr4are the sizes of nozzle) lead to a decrease in temperature and velocity of plasma jet. But large size ofr5can increase the external temperature and velocity of plasma jet, which benefit particles accelerating at the far downstream region. A new nozzle was designed based on the simulation results. Compared to the temperature and velocity of plasma jet in the original nozzle, the maximum temperature and velocity of plasma jet in new structure are increased by about 9.8% and 44.5%, which is a benefit to the particles to reach a higher speed and surface temperature.
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Research context
OpenAlex topics: Particle Dynamics in Fluid Flows · High-Temperature Coating Behaviors · Fluid Dynamics and Heat Transfer
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
State Key Laboratory of Manufacturing Systems Engineering, Xi’an Jiaotong University, Xi’an, China
School of Mechanical Engineering, Xinjiang University, Urumqi, Xinjiang, China
School of Materials Science and Engineering, Xi’an Jiaotong University, Xi’an, China
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