Two calculational methods for nonlinear analysis are adopted, that is, the improved Euler method and the Newton iteration method.
实现了两种求解非线性问题的数值计算方法：改进欧拉法和增量牛顿迭代法。
Using the improved method we studied inviscid and viscous transonic flow in turbomachinery based on Euler and Navier Stokes equations.
计算结果表明，本方法是透平机械内部跨音速流动计算的强有力的手段。
Using improved euler method to solve the grey system model was simple and rapid. The predicted value accorded basically with the surveying value.
采用改进的欧拉算法求解灰色系统模型简单快捷，预测结果与实测值基本符合。
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