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    季鑫龙, 赖焕新. AUSM+格式在亚音、跨音和超音速流动数值模拟中的应用[J]. 华东理工大学学报(自然科学版), 2014, (3): 388-393.
    引用本文: 季鑫龙, 赖焕新. AUSM+格式在亚音、跨音和超音速流动数值模拟中的应用[J]. 华东理工大学学报(自然科学版), 2014, (3): 388-393.
    JI Xin-long, LAI Huan-xin. Application of AUSM+ Scheme for Simulation of Viscous Flows in Subsonic, Transonic and Supersonic Range[J]. Journal of East China University of Science and Technology, 2014, (3): 388-393.
    Citation: JI Xin-long, LAI Huan-xin. Application of AUSM+ Scheme for Simulation of Viscous Flows in Subsonic, Transonic and Supersonic Range[J]. Journal of East China University of Science and Technology, 2014, (3): 388-393.

    AUSM+格式在亚音、跨音和超音速流动数值模拟中的应用

    Application of AUSM+ Scheme for Simulation of Viscous Flows in Subsonic, Transonic and Supersonic Range

    • 摘要: 在任意曲线坐标系下,采用有限体积法计算可压缩流动。利用AUSM+格式替换传统的Rhie Chow动量插值方法,给出有限体积界面的速度和压力求解方式。为了适用于亚音速流动,通过预处理的方法给出了速度 压力耦合的表达式。算例考核结果表明,该算法在不可压流动到超音速的全范围内都有良好的适用性,而AUSM+格式的计算结果均优于Rhie Chow动量插值方法。

       

      Abstract: The governing equations of compressible flows are discretized using a finite volume method. Rhie Chow’s interpolation is replaced by the AUSM+ scheme. Detailed procedure for calculating the velocity and pressure in the face of control volume is presented. The velocity pressure coupling is obtained through a pre conditioning method, which makes the AUSM+ scheme applicable for flows at all speeds. The algorithm is widely validated by calculating the flows at all speeds, from subsonic, transonic to supersonic range. Results show that the AUSM+ scheme is able to obtain better agreement with benchmark solutions, as compared with those using Rhie Chow’s interpolation method.

       

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