The weak nonlinear instability of a nonparallel boundary layer is studied by nonlinear parabolized stability equations(PSE).
采用非线性抛物化稳定性方程（PSE）研究了非平行边界层的弱非线性稳定性。
Based on parabolized stability equations, the stability of nonparallel boundary layer is calculated and analyzed by using recursion numerical method.
该文从抛物化稳定性方程出发，采用从上游往下游递推的数值方法，对非平行边界层稳定性问题进行了数值计算和分析。
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