园管的稳态流 沿z方向的一维流动,n=0.1=0稳态一维流动:m 06 1a(n),1oW+(Am)=0=0,un=0 =0 l a Z分量方程简化为: I ap ar2 r ar 06 az az dr u dz园管的稳态流 z u p r r u r r uz z z = + + 1 1 1 2 2 2 2 2 沿z方向的一维流动, 0, 0,稳态一维流动: =0, = = z r u u u z p r u r r uz z = + 1 1 2 2 dz dp dr du dr r d u 1 1 2 2 + = ( ) 0 1 ( ) 1 ( ) = + + z r u z u r r ru r 0 0, 0, = z u u u z r = = Z分量方程简化为: