| NUMERICAL SIMULATION OF THREE DIMENSIONAL INTERACTING TURBULENCE FLOW FIELD OVER PROJECTILE WITH LATERAL JETS |
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| 作者姓名： | Gao Xudong Wu Xiaosong College of Mechanical Engineering Nanjing University of Science and Technology Nanjing P.R.China |
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| 作者单位： | Gao Xudong Wu Xiaosong College of Mechanical Engineering，Nanjing University of Science and Technology Nanjing 210094，P.R.China |
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| 摘 要： | INTRODUCTIONIn recent years,the study of lateral jets hasaroused more interest of aerodynamicist all overthe world.On the one hand,the interacting flowfield caused by lateral jet includes complicatedshock wave patterns and has important values tostuding flow phenomena.It has been not veryclear to this day and it is very difficult for nume-rical simulation.On the other hand,lateral jethas important applications for the field of aero-nautics,astronautics and weapons:for example,lateral jet …
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NUMERICAL SIMULATION OF THREE DIMENSIONAL INTERACTING TURBULENCE FLOW FIELD OVER PROJECTILE WITH LATERAL JETS |
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| Gao Xudong Wu Xiaosong College of Mechanical Engineering,Nanjing University of Science and Technology Nanjing ,P.R.China.NUMERICAL SIMULATION OF THREE DIMENSIONAL INTERACTING TURBULENCE FLOW FIELD OVER PROJECTILE WITH LATERAL JETS[J].Transactions of Nanjing University of Aeronautics & Astronautics,2001,18(Z1). |
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| Authors: | Gao Xudong Wu Xiaosong |
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| Institution: | College of Mechanical Engineering,Nanjing University of Science and Technology Nanjing 210094, P. R. China |
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| Abstract: | In order to study complicated interacting flow field over projectile with lateral jets. External interacting turbulence flow over projectile with lateral jets was numerically simulated firstly in supersonic speed and zero attack angle. The three dimensional Reynolds-averaged NavierStokes equations and implicit finite volume TVD scheme grid of single zone including projectile base was produced by algebraic arithmetic. Body-fitted grid was generated for the lateral nozzle exit successfully so that the nozzle exit can be simulated more accurately. The high Reynolds number two-equation κ-ε turbulence models were used.The main features of the complex flow are captured. The two kinds of flow field over projectile with and without lateral jets are compared from shock structure, pressure of body and base, etc. It shows that lateral jets not only can provide push force, but also change aerodynamics characteristic of projectile significantly. The results are very important for the study of projectile with lateral rocket boosters.`` |
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| Keywords: | lateral jet projectile Navier Stokes equation finite volume TVD scheme numerical simulation turbulence |
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