The continuity equation for steady, two-dimensional flow S 无法显示该图片 pm)+(py)=0 ( 0 or ptu+vtp Substituting u=,v= Into it, we ge 0 oo op oo op p(2+2)+ oxThe continuity equation for steady,two-dimensional flow is : 0 ( ) ( ) =   +   y v x u  = 0   +   +   +   y v y v x u x u     or Substituting into it, we get y v x u   =   =   , ( ) 0 2 2 2 2 =     +     +   +   x y x x y y       