《计算机数值方法教学课件第六章流体力学控制方程的有限差分法.ppt》由会员分享,可在线阅读,更多相关《计算机数值方法教学课件第六章流体力学控制方程的有限差分法.ppt(75页珍藏版)》请在第壹文秘上搜索。
1、VMac1Ma 1Ma 1Ma txyzxyzFGHUFGHtuvwEU2()tuupuvuwEp uF0+xxxyxzxxxyxzTuvwkxvFN-S Eqs.Euler Eqs.Model Eq.0txUF0txUUA20100uutxxuuputxxppuuatxx 2()011()uvuvxyxyuupuvxyxvvpuvxyyppuvuvaxyxy 222:uva 222:uva 2()011()uvuvtxyxyuuupuvtxyxvvvpuvtxyypppuvuvatxyxy UUUAB0txyAI0:,iu ua ua BI0:,iv va va 2222222201()1(
2、)uvxyuupuuuvxyxxyvvpvvuvxyyxy 2222222201()1()uvxyuuupuuuvtxyxxyvvvpvvuvtxyyxy uvuvtxxyy 221,2,()2nnnni ji ji ji jtttt 1,1,1,1,1,1,1,1,(22)22nnnnnijijijijnni ji ji jnnnni ji ji ji jnni ji juuutxxvvvyy 222222uuuvvvuvtx txtx ttxy tyty tty 2222222211uuuuu vppuvx txxx yyxxxx uvuvtxxyy 1uuupuvtxyx 1,12nna
3、vi ji jttt 1,nni ji javtt 1,nnni ji ji jtt 1,1,(nnnnniji jiji jnni ji ji juuutxx ,1,1,)nnnni ji ji ji jnni ji jvvvyy 11111,1,1,11,(nnnnni jiji jijnni ji ji juuutxx 1111,1,111,)nnnni ji ji ji jnni ji jvvvyy 1,nni ji javtt 111111111UU(FF)UU(FF)1U(UU)2nnnniiiinnnniiiinnniiitxtx UF0tx 2U(,)F,()TTuEu pup
4、E u Sni 1Sni 1111112SU2UU,2nnnnnnniiiixiiinnniiipppcppp0.01 0.3xc 111111111UU(FF)UU(FF)1U(UU)2nnnniiiinnnniiiinnniiitxtx ()0()()()()yxxxxyyyVtupuVtxxyvpvVtyxy euyuD t 22(0,)0(,)euutyutu D tu 221Re(0,)0(1,)1uutyutut Reeu D 111221Re()nnnnnjjjjjuuuuuty 21Re()2tEy 111111112111221222Re()nnnnnnnnjjjjjjjjuuuuuuuuty 1,21jN DyN (1)jyjy ,xxyytt uuxuyxyuuxuyxy ,uyuyuyuxyxxy xyxyxyJxy1yyxJ111UJUyxFJFJGFGxyyxGJFJGFGxy 0 yGxFtU1110UFG11kkxyee 2222222200 xyxy PQ0(,0)sin(2)uutxu xx 0,1x 导弹气动特性计算导弹气动特性计算攻攻角角30度度导导弹弹全全流流场场流流动动图图画画导弹气动特性计算导弹翼根处大分离涡流动示意图导弹翼根处大分离涡流动示意图舵面位置横向截面流动图画舵面位置横向截面流动图画高超声速横向喷流干扰高超声速横向喷流干扰