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20 September 2022 Calculation method for fluidic thrust-vectoring dual throat nozzle
Ye Chen, Zhongxi Hou, Yudan Yang, Guo Zheng, Jian'an Zong, Yuan Long
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Proceedings Volume 12261, International Conference on Mechanical Design and Simulation (MDS 2022); 122614K (2022) https://doi.org/10.1117/12.2638576
Event: Second International Conference on Mechanical Design and Simulation (MDS 2022), 2022, Wuhan, China
Abstract
A dual throat nozzle (DTN) is a novel type of fluidic thrust-vectoring (FTV) nozzle. Many computational studies have been done for DTNs. However, in general most efforts have only attained limited success. In this study, we evaluate the performance of the Reynolds-averaged Navier–Stokes equations in predicting the flow characteristics in a DTN by comparing the results with the experimental flow field detail data measured in previous studies. The calculation results using the Spalart–Allmaras (SA) model, the 𝑘 - ω shear stress turbulence (SST) model, and the 𝑘 - ω SST model were compared with the experimentally obtained pressure curves. The influence of the turbulence model on the prediction results of the DTN flow field were analyzed further using the Mach cloud map. The results indicate that the SA model shows the best prediction performance for the DTN flow field.
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Ye Chen, Zhongxi Hou, Yudan Yang, Guo Zheng, Jian'an Zong, and Yuan Long "Calculation method for fluidic thrust-vectoring dual throat nozzle", Proc. SPIE 12261, International Conference on Mechanical Design and Simulation (MDS 2022), 122614K (20 September 2022); https://doi.org/10.1117/12.2638576
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KEYWORDS
Throat
Turbulence
Numerical simulations
Aerospace engineering
Computer simulations
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