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Сľ³æ: ½ð±Ò+0.5, ¸ø¸öºì°ü£¬Ð»Ð»»ØÌû
xiegangmai: ½ð±Ò+2, лл²ÎÓ룡 2013-03-24 14:32:09
Сľ³æ: ½ð±Ò+0.5, ¸ø¸öºì°ü£¬Ð»Ð»»ØÌû
xiegangmai: ½ð±Ò+2, лл²ÎÓ룡 2013-03-24 14:32:09
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Ò·Á¦ÏµÊýµÄÀý×ÓÖоÍÓУ¬Ä㿴һϾÍÖªµÀ¸ÃÈçºÎ´¦ÀíÁË¡£ DEFINE_EXCHANGE_PROPERTY(custom_drag,cell,mix_thread,s_col,f_col) { Thread *thread_g, *thread_s; real x_vel_g, x_vel_s, y_vel_g, y_vel_s, abs_v, slip_x, slip_y, rho_g, rho_s, mu_g, reyp, afac, bfac, void_g, vfac, fdrgs, taup, k_g_s; /* find the threads for the gas (primary) */ /* and solids (secondary phases) */ thread_g = THREAD_SUB_THREAD(mix_thread, s_col);/* gas phase */ thread_s = THREAD_SUB_THREAD(mix_thread, f_col);/* solid phase*/ /* find phase velocities and properties*/ x_vel_g = C_U(cell, thread_g); y_vel_g = C_V(cell, thread_g); x_vel_s = C_U(cell, thread_s); y_vel_s = C_V(cell, thread_s); slip_x = x_vel_g - x_vel_s; slip_y = y_vel_g - y_vel_s; rho_g = C_R(cell, thread_g); rho_s = C_R(cell, thread_s); mu_g = C_MU_L(cell, thread_g); /*compute slip*/ abs_v = sqrt(slip_x*slip_x + slip_y*slip_y); /*compute Reynold's number*/ reyp = rho_g*abs_v*diam2/mu_g; /* compute particle relaxation time */ taup = rho_s*diam2*diam2/18./mu_g; void_g = C_VOF(cell, thread_g);/* gas vol frac*/ /*compute drag and return drag coeff, k_g_s*/ afac = pow(void_g,4.14); if(void_g<=0.85) bfac = 0.281632*pow(void_g, 1.28); else bfac = pow(void_g, 9.076960); vfac = 0.5*(afac-0.06*reyp+sqrt(0.0036*reyp*reyp+0.12*reyp*(2.*bfac- afac)+afac*afac)); fdrgs = void_g*(pow((0.63*sqrt(reyp)/ vfac+4.8*sqrt(vfac)/vfac),2))/24.0; k_g_s = (1.-void_g)*rho_s*fdrgs/taup; return k_g_s; } |
2Â¥2013-03-21 17:47:57
malu430
½ð³æ (СÓÐÃûÆø)
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3Â¥2013-03-22 14:46:19
³Âwen
гæ (³õÈëÎÄ̳)
- Ó¦Öú: 0 (Ó×¶ùÔ°)
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4Â¥2013-03-22 20:08:14
lsqtcc
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5Â¥2015-03-17 23:19:37
lsqtcc
½ð³æ (ÕýʽдÊÖ)
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- Ìû×Ó: 587
- ÔÚÏß: 135.3Сʱ
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- ×¢²á: 2011-10-18
- ÐÔ±ð: GG
- רҵ: ¹¤³ÌÈÈÎïÀíÏà¹Ø½»²æÁìÓò

6Â¥2015-03-17 23:20:27













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