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Study on the Numerical Model of transonic wind tunnel Test Section

Journal of Thermal Science 2021年第1期30卷 231-241页

作者： LOUDA Petr PŘÍHODA Jaromír Institute of Thermomechanics of the Czech Academy of Sciences Prague 818200Czech Republic Faculty of Mechanical Engineering Czech Technical UniversityPrague 212135Czech Republic

The authors consider numerical simulations of transonic flows through various turbine cascades in a confined channel which approximates boundaries of real wind *** boundaries of the wind tunnel are impermeable or there can be permeable tailboards to diminish shock wave *** mathematical model is based on Favre-averaged Navier-Stokes equations closed by a turbulence model and model of transition to *** mathematical model is solved by an implicit finite volume method with multi-block *** types of turbine blade cascades with subsonic or supersonic inlet are *** results are compared with optical measurements and simulations of periodic *** validity of experimental reference flow parameters in relation to computed flow patterns is discussed.

关键词： perforated wall model transonic wind tunnel turbine blade cascade

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CFD/CSD-based flutter prediction method for experimental models in a transonic wind tunnel with porous wall

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Chinese Journal of Aeronautics 2020年第12期33卷 3100-3111页

作者： Tongqing GUO Daixiao LU Zhiliang LU Di ZHOU Binbin LYU Jiangpeng WU Key Laboratory of Unsteady Aerodynamics and Flow Control Ministry of Industry and Information TechnologyNanjing University of Aeronautics and AstronauticsNanjing 210016China China Aerodynamics Research and Development Center Mianyang 621000China Shenyang Aircraft Design and Research Institute Shenyang 110035China

To predict the flutter dynamic pressure of a wind tunnel model before flutter test,an accurate Computational Fluid Dynamics/Computational Structural Dynamics(CFD/CSD)-based flutter prediction method is proposed under the conditions of a 2.4 m×2.4 m transonic wind tunnel with porous *** the CFD simulations of the flows through an inclined hole of this wind tunnel,the Nambu's linear porous wall model between the flow rate and the differential pressure is extended to the porous wall with inclined holes,so that the porous wall can be conveniently modeled as a boundary *** to the flutter testing approach for the current wind tunnel,the steady CFD calculation is conducted to achieve the required inlet Mach number.A timedomain CFD/CSD method is then employed to evaluate the structural response of the experimental model,and the critical flutter point is obtained by increasing the dynamic pressure step by step at a fixed Mach *** present method is applied to the flutter calculations for a vertical tail model and an aircraft model tested in the current transonic wind *** both models,the computed flutter characteristics agree well with the experimental results.

关键词： CFD/CSD Experimental models Flutter Porous wall transonic wind tunnel

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维普期刊数据库

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The Continuous Dynamic Simulation Test of the Captive Trajectory System Used in 2.4m transonic wind tunnel

The Continuous Dynamic Simulation Test of the Captive Trajec...

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2011 Chinese Control and Decision Conference（CCDC）

作者： Zhu Rusong is with the State Key Laboratory of Aerodynamics,China Aerodynamics Research & Development Center,Mianyang,621000,China. Wang Fei is with the State Key Laboratory of Aerodynamics,China Aerodynamics Research & Development Center,Mianyang,621000,China.Li Ping is with the China Aerodynamics Research & Development Center,Mianyang,621000,China.Huang Xuhui is with the China Aerodynamics Research & Development Center,Mianyang,621000,China.F

This paper presents the general process of velocity control of the Captive Trajectory Simulation System （CTS） used in 2.4m transonic wind tunnel and it’s control *** two key technical problems in the velocity control of the CTS jig,including the continuous coordinated control of the jig along dynamic trajectory and the real-time filtering of the dynamic banlance signal,are disscussed in *** designing an optimized coordinated buffering control algorithm and two kinds of real-time filtering algorithms with little lag,the key technique problems are solved effectively and *** wind tunnel CTS test results shows that the simulating trajectory generated by the velocity control of the CTS jig is precisely identical as a whole to the test data generated by the move and stop control method,while the former test tecnique has greatly improved the efficiency of the CTS test in wind tunnel,and has reduced energy consumption considerably.

关键词： Captive Trajectory Simulation System transonic wind tunnel Dynamic Trajectory Velocity Control Real-time Filtering

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Compressible Turbulent Boundary Layers on a Strongly Heated Wall

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Journal of Thermal Science 1993年第3期2卷 213-227页

作者： Doug-Bong LEE Franck SOCHELEAU Roger LEBLANC Department of Mechanical Engineering Inchon University Centre d’Etudes Aerodynamiques et Thermiques Université de Poitiers

This paper concerns the theoretical and experimental modelling of the flat wall,highly heated,compressible turbulent boundary *** final objective is to develop a numerical Navier-Stokes solver and to conclude on its capability to correctly represent complex aerothermic viscous flows near the *** paper presents a constructed numerical method with particular attention given to the turbulence modelling at low Reynolds number and comparisons with supersonic and transonic experimental *** the transonic experiment,very high wall temperature(Tw=1100K)is *** method of this difficult experimental set up is *** comparison between experimental and computational data conducts to the first conclusion and gives some indications for the future work.

关键词： compressible turbulent boundary layer transonic wind tunnel strong wall heating low Reynolds number k -ε model

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