液体火箭发动机带有隔板和无隔板的两相冷态解数值模拟

TWO PHASE COLD FLOW SIMULATION OF WITH AND WITHOUT BAFFLES IN LIQUID ROCKET ENGINE

本文对液体火箭发动机燃烧室内带有隔板和无隔板的两种情况进行了两相冷态解数值模拟，气相控制方程用欧拉坐标系下的Ｎａｖｉｅｒ－Ｓｔｏｋｅｓ方程组描述，液相控制方程在Ｌａ－ｇｒａｎｇｉａｎ坐标系下进行描述。气、液两相作用通过方程组的源项互相耦合，通过计算比较了有隔板和无隔板时发动机内部流场的参数值，表明了隔板体的数值处理方法对计算两相冷态解的有效性。

The two phase cold solutions are simulated with numerical method in liquid rocket engine combustion chamber having baffles and no having baffle.The gas controlling equations are discribed under the Euler coordinate.The liquid phase controlling equations are discribed under the Lagrangian coordinate.The two phase influences of gas and liquid are through the sources of equations.The flow values of combustion chamber are compared while having baffles and no baffle.It is proved that the numerical treating method of baffle is successful to the two phase cold flow solution.