【摘要】 本文用N-S方程描述燃烧室内单相有旋气体喷射的轴对称非定常湍流流动。计算了不同Swirl数的有旋射流进入突放管的速度场和流线分布。湍流模型采用SGS方法。计算结果与其它模型所得结果相比,具有所需网格少、精度高和计算方便的优点。更多还原

【Abstract】 In this paper, N-S equations are used to describe the injection of swirling gas, regard as an unsteady axisymmetric turbulent flow. Velocity and streamline distribution of various swirl number flows are computed. The turbulent coefficient is calculated by S-G-S model. A comparison between the results computed by the method of this paper and the results computed by other methods shows the advantage of few cells, good accuracy and convenient computation.更多还原