#//u(i,j)        x方向的速度u;或者θ方向速度uθ #//u(i,j)        y方向的速度v;或者径向速度ur'h\K #//pc(i,j)       压力修正 p'[OS #//p(i,j)        压力p-=5-+ #//p(i,j)    

The objective is to find out the time at which the rocket reaches a speed of 1000m/s (3600km/hr). Analysis We know the following: * Initial mass of the rocket and fuel, 160000kg, or 160 metric tons. * Fuel combustion exhaust velocity relative