基于附着流状态下的旋翼非定常翼型气动模型，给出了计算该状态下的翼型非定常升力、阻力和俯仰力矩的数值计算方法。
A numerical method is given to calculate the unsteady lift, pitching moment and drag acting on an airfoil of rotors under attached-flow conditions in a compressible flow.
当源项是解的非线形函数时，发现定常状态的误差是刚性参数的单调增加函数。
The steady error is an increasing function of the stiffness parameter if the source term is nonlinear.
近年来，人们发现压气机叶顶间隙流并非始终处于定常状态，在某些流动条件下，它会产生明显的非定常波动，并影响压气机的总性能。
Recently, the unsteady characteristics of tip clearance flow, which appears in some flow conditions, was discovered and its influence to the compressor performance was recognized.
本文针对定常和非定常热状态推导了机床在运转中产生的内部热强度的计算公式。
In this paper a calculating formula is introduced for measuring the strength of internal heat source produced in machine tool while revolving in accordance with steady and non-stationary state.
本文针对定常和非定常热状态推导了机床在运转中产生的内部热强度的计算公式。
In this paper a calculating formula is introduced for measuring the strength of internal heat source produced in machine tool while revolving in accordance with steady and non-stationary state.
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