A Computational Study of Thrust Vectoring Control Using Dual Throat Nozzle |
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Authors: | Choon Sik Shin Heuy Dong Kim Toshiaki Setoguchi Shigeru Matsuo |
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Affiliation: | (1) Scientific Computation Research Center, Rensselaer Polytechnic Institute, Troy, NY 12180, USA;(2) E350 Clark Center, Stanford University, 318 Campus Drive, Stanford, CA 94305, USA;(3) Simmetrix Inc, Clifton Park, NY 12065, USA |
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Abstract: | Dual throat nozzle (DTN) is fast becoming a popular technique for thrust vectoring. The DTN is designed with two throats, an upstream minimum and a downstream minimum at the nozzle exit, with a cavity in between the upstream throat and exit. In the present study, a computational work has been carried out to analyze the performance of a dual throat nozzle at various mass flow rates of secondary flow and nozzle pressure ratios (NPR). Two-dimensional, steady, compressible Navier-Stokes equations were solved using a fully implicit finite volume scheme. The present computational results were validated with available experimental data. Based on the present results, the control effectiveness of thrust-vectoring is discussed in terms of the thrust coefficient and the coefficient of discharge. |
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Keywords: | Compressible Flow Dual Throat Nozzle Thrust Vector Control Shock Wave Supersonic Flow |
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