| ²é¿´: 9595 | »Ø¸´: 1 | ||
xyujnÒø³æ (³õÈëÎÄ̳)
|
[½»Á÷]
¡¾ÇóÖú¡¿Õæ³ÏÇóÖú£º¿É·ñÓÐÈ˼ò½éÒ»ÏÂRayleigh-Plateau²»Îȶ¨ÐÔºÍKelwin-Helmholtz²»ÎÈ ÒÑÓÐ1È˲ÎÓë
|
Çë¸øÒ»¸öͨË×Ò×¶®µÄ½âÊÍ£¬ °Ýл! |
seaxiaomuch
¾èÖú¹ó±ö (ÕýʽдÊÖ)
- Ó¦Öú: 13 (СѧÉú)
- ½ð±Ò: 878.3
- É¢½ð: 3844
- ºì»¨: 5
- Ìû×Ó: 826
- ÔÚÏß: 312.7Сʱ
- ³æºÅ: 1815011
- ×¢²á: 2012-05-13
- ÐÔ±ð: GG
- רҵ: °ëµ¼Ìå²ÄÁÏ
¡ï
Сľ³æ: ½ð±Ò+0.5, ¸ø¸öºì°ü£¬Ð»Ð»»ØÌû
Сľ³æ: ½ð±Ò+0.5, ¸ø¸öºì°ü£¬Ð»Ð»»ØÌû
|
×÷ÕߣºÌÆÎÄèº Á´½Ó£ºhttps://www.zhihu.com/question/27556009/answer/38652251 À´Ô´£ºÖªºõ Öø×÷Ȩ¹é×÷ÕßËùÓУ¬×ªÔØÇëÁªÏµ×÷Õß»ñµÃÊÚȨ¡£ Plateau¨CRayleigh instabilityÊÇÃèÊöË®ÖùÁ÷¶¯¹ý³ÌÖеÄÈŶ¯ÏÖÏó£¬PlateauÊ×ÏÈ¶ÔÆä½øÐвâÁ¿(1873)£¬½Ó×ÅRayleigh(1878)Ìá³öÊýѧģÐͽøÐнâÊÍ¡£Î¢Ð¡ÈŶ¯µÄ³ÉÒòÊÇÒòΪ´Ó΢¹ÛÉÏÀ´¿´£¬Ë®µÄ¾Ö²¿±íÃæÕÅÁ¦²¢²»ÊÇÆ½ºâµÄ(Ó¦¸ÃÊÇÓÉÓÚ·Ö×ÓÈÈÔ˶¯)£¬¶øÊǶ¯Ì¬±ä»¯µÄ£¬¿ÉÒÔÓÃÒ»¸öÕýÏÒ²¨À´ÃèÊöÕâ¸öÈŶ¯£¬²¨¶¯Ê¹Ë®ÖùijЩ²¿·Ö°ë¾¶Ôö´ó£¬Ä³Ð©²¿·Ö°ë¾¶¼õС£¨¼ûÏÂͼ£©£¬°ë¾¶±ä»¯µÄº¯Êý±í´ïʽΪ£¬´øÀ´µÄѹǿ±ä»¯¼ûÏÂͼ ±¾À´°ë¾¶±ä´ó£¬»áʹ±íÃæÕÅÁ¦´øÀ´µÄѹǿ¼õС£¬µ«ÊDz¨¶¯ÓÖ»á´øÀ´Ñ¹Ç¿µÄÔö´ó£¬±È½Ï²¨·å²¨¹ÈÁ½´¦Ñ¹Ç¿µÄ±ä»¯£¬¿ÉµÃ ÈŶ¯()½ÏСʱ£¬£¬¼´²¨·å´¦Ñ¹Ç¿½Ï´ó£¬²¨¹È´¦Ñ¹Ç¿½ÏС£¬¿ÉÒÔ»Ö¸´Æ½ºâ(ÏëÏó´Ë´¦Ñ¹Á¦½Ï´ó£¬°Ñ²¨·åѹƽ)£»µ±ÈŶ¯½Ï´óʱ£¬²¨¹È´¦Ñ¹Ç¿½Ï´ó£¬»áÆþ¶ÏË®Öù£¬ÐγÉË®µÎ¡£ ¶øËæ×Åʱ¼äÔö³¤£¬ÈŶ¯²¨»áÔ½À´Ô½Ç¿ÁÒ(perturbations growth)£¬µ±´ïµ½Ò»¸öÁÙ½ç°ë¾¶(critical length)ʱ¾Í»á¶ÏÁÑÐγÉË®µÎ¡£¾ßÌ弯Ëã¿ÉÒÔ¿´MIT¹ØÓÚ±íÃæÕÅÁ¦µÄ¹«¿ª¿Îhttp://web.mit.edu/2.21/www/Lec-notes/Surfacetension/Lecture5.pdf¡£ ÕâÊÇÔÚÎÞÖØÁ¦µÄÇé¿öÏÂÍÆµ¼µÄ£¬¶øÖØÁ¦µÄ×÷ÓÃÕýÈçÇ°ÃæËù½²£¬»á°ÑË®ÖùÀϸ£¬¼´°ë¾¶¼õС£¬´Ó¶ø¸üÈÝÒׯþ¶Ï¡£ËùÒÔÖØÁ¦ÊÇ´ÙÒò£¬µ«ÊÇÕæÕý¶ÏÁѵÄÔÒòÊÇÒòΪPlateau¨CRayleigh instability Ë®Öù¶ÏÁѵĹý³Ì¼ûÏÂͼ ´ËÍ⣬Õâ¸ö¶ÏÁѵĹý³ÌÒ²¿ÉÒÔÓñíÃæÄܽâÊÍ£¬¼´Ð¡Ë®µÎµÄ±íÃæ»ýÖ®ºÍСÓÚË®ÖùµÄ±íÃæ»ýʱ£¬¾Í»á¶ÏÁѳÉСˮµÎ¡£ Ë®ÖùÌå»ý,±íÃæ»ý£» СˮµÎÌå»ý£¬±íÃæ»ý£» Ìå»ýÏàµÈ£¬ÇóµÃ£» ´Ó¶øS2/S1=3R/2r£¬µ±r>3R/2ʱ£¬Ë®µÎµÄ±íÃæÄÜÖ®ºÍСÓÚË®ÖùµÄ¡£´ÓÉÏͼҲ¿ÉÒÔ¿´³ö¶ÏÁÑÐγɵÄË®µÎ°ë¾¶´óÓÚË®ÖùµÄ°ë¾¶ |
2Â¥2018-05-20 22:26:35









°Ýл!
»Ø¸´´ËÂ¥