平壁面的降落液膜流动 X=0令 0 as 6 X=2分罪=0 下(9ⅪJ)3 o&9 2=|s'q() 3 =( TtPI\3平壁面的降落液膜流动 ( ) 2 2 2 x g uy =  −   0, 0 0, =   =  =  = x u x x u y  y  =  0 V u dx(1) s y      ( )(1) 3 (1) 2 0 g u dx A V u y S b = = =  1/ 2 ) 3 ( g ub    =