涡扇发动机带动力数值模拟

基于等熵流动原理，通过在排气口处设定总温比／总压比，进气口处设定质量流量，提出了一种新型的发动机进排气边界条件。通过与N-S方程耦合求解，数值模拟了轴对称超高涵道比涡扇模拟器CURF和单独涡轮动力模拟器进排气流场，数值结果表明：计算结果和实验值吻合较好，验证了提出的发动机进排气边界条件的正确性，同时也验证了涡扇发动机带动力流场计算方法的可靠性。

Numerical Simulation of Turbofan Engine with Power

To model the aerodynamic effects of turbofan engine properly, a new approach of engine inlet and exhaust boundary conditions is constructed and presented based on the isentropic flow principle, in which the total pressure ratio and total temperature ratio at exhaust plane and the mass flow at inlet are specified. Incorporating the new boundary conditions into around an axisymmetric ultra- high bypass ratio turbofan were simulated. Compared with the experiment data, the the solving of Navier- Stokes equations, the flow simulator CURF and a turbine powered simulator numerical results show that the engine inlet and exhaust flowfields are accurately simulated by the newly presented boundary conditions. The reliability of the numerical method simulating turbofan engine with power is verified as well.