先进材料疑固实验室 Momentum equation Laboratory of Advanced Materials Solidification du Pf+ 6+ OT 8x dy dv dt =Pf,+ 0+0x dy a义水01 OT d d _-pf:* 0十 Oz 8x dy y of Advanced Matenals 上浒充通大学 SHANGHAI JIAO TONG UNIVERSITYMomentum equation