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采用时空守恒元和解元CE/SE(space-time Conservation Element and Solution Element method)法,求解二维Euler方程,开展了翼型绕流的无粘数值模拟研究.用非敏感克朗数计算格式消除克朗数过小引起的数值耗散对解的污染,结合当地时间步长法,解决网格不均匀引起的当地克朗数变化跨度大的问题.对NACA0012翼型的无激波流场进行了二维数值模拟,并与AGARD算例做了对比.结果表明:CE/SE方法的计算结果与AGARD结果吻合得很好,为该数值计算方法对翼型绕流数值模拟的进一步应用奠定了基础.
The space-time conservation element and solution element method (CE / SE) was used to solve the two-dimensional Euler equation, and the non-viscous numerical simulation of airfoil flow was carried out. The Krone The numerical dissipation caused by too small a number is the solution to the pollution of the solution and the local time step method is used to solve the problem of large variation of local Kron number caused by grid unevenness.Non-shock flow field of NACA0012 airfoil is two- The numerical results show that the calculated results of CE / SE agree well with the results of AGARD, which lays the foundation for the further application of the numerical simulation method to the numerical simulation of airfoil flow.