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In order to make the numerical calculation of viscous flows more convenient for theflows in channtel with comphicated profile governing equations expressed in the arbitrarycurvilinear coordinates were derived by means of Favre density-weighted averaged method,and a turbulent model with effect of curvature modyification was also derived.Thenumerical calculation of laminar and turbulent flows in divergent curved channels wascarried out by means of parabolized computation method.The calculating results were usedto analyze and investigate the aerodynannic performance of stator cascades in compressorspreliminarily. 相似文献
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In order to make the numerical calculation of viscous flows more convenient for the flows in channel with complicated profile governing equations expressed in the arbitrary curvilinear coordinates were derived by means of Favre density- weighted averaged method, and a turbulent model with effect of curvature modification was also derived. The numerical calculation of laminar and turbulent flows in divergent curved channels was carried out by means of parabolized computation method. The calculating results were used to analyze and investigate the aerodynamic performance of stator cascades in compressors preliminarily. 相似文献
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本文采用k-ε湍流模型,应用了“抛物化”的方法,对直列扩压叶栅中三维湍流流动进行了数值计算。与“准层流”模型计算及实验结果比较表明,在叶栅的湍流流动计算中,κ-ε模型将是比较适合的。 相似文献
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