建立了带喷管的氢氧连续旋转爆震发动机的二维模型,对连续旋转爆震发动机的工作过程进行数值模拟。基于带化学反应的欧拉方程,采用Rever-Evans氢氧反应模型,利用一维ZND模型进行初场设置,模拟了氢氧连续旋转爆震发动机从起爆到实现爆震波连续旋转传播的过程。对计算得到的流场进行定量分析,计算出发动机燃烧室中爆震波传播速度为2920~3060 m/s,频率为29800 Hz,并利用进出口参数计算出发动机的推力和比冲,计算得到发动机的平均推力为267 N,平均比冲为355 s,同时与火箭发动机工作过程进行了比较。 A two-dimensional model of continuous-rotating hydrogen-oxygen detonation engine with a nozzle was set up to simulate the working process of continuous rotary detonation engine. Based on the Euler equation with chemical reaction, the Rever-Evans hydrogen-oxygen reaction model was used and the initial setting of one-dimensional ZND model was used to simulate the continuous rotation of the detonation engine. The calculated flow field is quantitatively analyzed, and the detonation wave propagation velocity in the engine combustion chamber is calculated to be 2920-3060 m / s and the frequency is 29800 Hz. The thrust and specific impulse of the engine are calculated by using the import and export parameters, and the engine The average thrust is 267 N, the average specific impulse is 355 s, at the same time compared with the rocket engine working process.