7.2 assuming the forcing function is a Rump 0.0<Wf( (w)={1+,-s<W<0 0.0,W<-s 0.0 he solution of u +vu=0 is shown below S 0 it=t x=1·t 2 7.1 Propagation of the Wave Front 浙江大学 实用数值计算方法浙江大学 实用数值计算方法 7 7.2 assuming the forcing function is a Rump The solution of is shown below. ( )         − + −    = W s s W s W W f W 0.0, 1 , 0 1.0, 0 ut + vux = 0 f (w) −s 0 W 1.0 0.0 u t x 0 t = t 0 x = x j x n t n t = t j x = x x = vt u(x t) j , u(x ,t) 0 ( ) 0 u x,t ( ) n u x,t 图 7.1 Propagation of the Wave Front