±±¾©Ê¯ÓÍ»¯¹¤Ñ§Ôº2026ÄêÑо¿ÉúÕÐÉú½ÓÊÕµ÷¼Á¹«¸æ
²é¿´: 1934  |  »Ø¸´: 9

sjtusyc

гæ (³õÈëÎÄ̳)

[ÇóÖú] »ðÑæ·æÃæµÄ¾¶ÏòËٶȲ»µÈÓÚ»ðÑæËÙ¶ÈÂð

¡¶È¼ÉÕѧµ¼ÂÛ¡·Ò»ÊéÖеڰËÕµĿκóϰÌâµÚÒ»Ì⣺
Given: the outward propagation of a spherical laminar flame into an infinite medium of unburned
gas
Find: an expression for the radial velocity of the flame front, v
Assumptions: spherical symmetry
Approach: use conservation of mass and definition of flame speed

ÇëÎÊ»ðÑæ·æÃæµÄ¾¶ÏòËٶȲ»µÈÓÚ»ðÑæËÙ¶ÈÂ𣬲»ÊÇÒ»¸ö¸ÅÄîÂð?
»Ø¸´´ËÂ¥

» ²ÂÄãϲ»¶

ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

»ÝÃ÷ok

½ð³æ (СÓÐÃûÆø)

¡¾´ð°¸¡¿Ó¦Öú»ØÌû

¡ï
¸Ðл²ÎÓ룬ӦÖúÖ¸Êý +1
ÌìÒ²äìäì: ½ð±Ò+1, ¹ÄÀøÓ¦Öú 2012-12-16 20:35:36
ÎÒ¾õµÃ»ðÑæµÄ·æÃæ¿ÉÒÔÀà±È³µÂÖµÄÍâΧ£¬Õû¸ö³µÂÖµÄÐнøËٶȺͳµÂÖµÄÏßËÙ¶ÈÊDz»ÏàͬµÄ
ÈËÉúΪÆå£¬ÎÒԸΪ×䣬Ðж¯ËäÂý£¬¿ÉË­¼ûÎÒ¶¼»áºóÍËÒ»²½
2Â¥2012-12-16 00:19:09
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

sjtusyc

гæ (³õÈëÎÄ̳)

ÒýÓûØÌû:
2Â¥: Originally posted by »ÝÃ÷ok at 2012-12-16 00:19:09
ÎÒ¾õµÃ»ðÑæµÄ·æÃæ¿ÉÒÔÀà±È³µÂÖµÄÍâΧ£¬Õû¸ö³µÂÖµÄÐнøËٶȺͳµÂÖµÄÏßËÙ¶ÈÊDz»ÏàͬµÄ

лл»Ø¸´£¬ÎÒ²»Ì«Àí½â£¬µ«ÎÒ¾õµÃÄã˵µÄÓ¦¸Ã¶Ô¡£ÔÚÕâµÀÌâÀ»ðÑæËÙ¶ÈÊÇСÓÚ»ðÑæ·âÃæµÄ¾¶ÏòµÄËٶȵġ£
ÄãÄÜÔÚ¾ßÌåµÄ½âÊÍÏÂÂÄãµÄ±ÈÓ÷ÎÒ²»ÊÇÌ«Ã÷°×¡£
лл¡£
3Â¥2012-12-16 13:42:23
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

liuqiong1004

½ð³æ (СÓÐÃûÆø)

¡¾´ð°¸¡¿Ó¦Öú»ØÌû

¸Ðл²ÎÓ룬ӦÖúÖ¸Êý +1
ÎÒ¾õµÃ¿ÉÒÔ¸üÑϸñµÄÕâÑù˵£¬»ðÑæ£¨´«²¥/ÂûÑÓ£©ËÙ¶ÈÓë»ðÑæÇ°·æµÄ¾¶ÏòËÙ¶ÈÊÇÒ»Öµģ¬ÊµÑéÊÒÀï½øÐвâÁ¿»ù±¾ÉÏÒ²ÊǸù¾ÝÕâ¸ö¹æÔòÀ´µÄ¡£
ÖÁÓÚ³µÂÖµÄÐÐ×ߣ¬¸ú»ðÑæ´«²¥ÊÇÓÐÒ»¶¨µÄ²î±ðµÄ¡£¶þÂ¥µÄ±ÈÓ÷²»Ì«¶Ô
³µÂÖÐÐ×ßʱ£¬³µËÙÊÇÂÖÌ¥Ô²Ðĵį½ÒÆËÙ¶È£»
¶ø³µÂÖ×îÍâ±ßµÄÏßËÙ¶È£¬ÔòÊÇÒ»¸öƽ¶¯µÄÆ½ÒÆËٶȺÍÒ»¸öת¶¯µ¼ÖµÄÇÐÏòËÙ¶ÈÖ®ºÏ
¿¼ÂÇÕâÁ½¸öËٶȵķ½Ïò£¬ÔòÈκÎʱ¿Ì£¬Õû¸öÂÖÌ¥µÄ×îÍâ±ß¸÷µãµÄ˲ʱºÏËٶȵķ½ÏòºÍ´óС¶¼²»Ò»ÖÂ
ËùÒÔ£¬³µÂÖ¹ö¶¯Ê±µÄÈκÎʱ¿Ì£¬ÓëµØÃæµÄ½Ó´¥µÄËÙ¶ÈΪÁ㣬×î¶¥µãËÙ¶ÈΪ2±¶³µËÙ¡£
¶ø¾Í»ðÑæ´«²¥ËٶȶøÑÔ£¬Èç¹ûÊÇÎȶ¨»ðÑæ£¬»ðÑæ·æÃæÐÎ×´¡¢Çãб½Ç¶ÈÔÚȼÉÕ´«²¥¹ý³ÌÖж¼Ã»Ê²Ã´±ä»¯
¾Í¿ÉÒÔ¿´×÷ÊÇÒ»¸öÕûÌåÐ±ÃæÔÚÏòÇ°Æ½ÒÆ£¬Õâʱºò´«²¥ËÙ¶ÈÓë»ðÑæÇ°·æËÙ¶ÈÏàͬ
Èç¹ûȼÉÕ¹ý³ÌÖлðÑæ·æÃæ·¢ÉúÁ˱仯£¬ÔòÒ»°ã°Ñ»ðÑæ´«²¥Ë²Ê±µÄËٶȵÈͬÓÚ»ðÑæÇ°·æ£¨ÓëȼÉÕÎï±íÃæ½Ó´¥´¦£©µÄÒÆ¶¯ËÙ¶È¡£
ºÃºÃѧϰÌìÌìÏòÉÏ
4Â¥2012-12-17 11:00:16
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

chinavictor

гæ (³õÈëÎÄ̳)

¡¾´ð°¸¡¿Ó¦Öú»ØÌû

¸Ðл²ÎÓ룬ӦÖúÖ¸Êý +1
»ðÑæËÙ¶ÈÓÐÁ½ÖÖ£¬Ò»ÖÖÊÇȼÉÕËÙ¶È£¬Ò»ÖÖÊÇ»ðÑæËÙ¶È¡£È¼ÉÕËÙ¶ÈÖ¸ËùÑо¿µãµÄ·¨ÏòËÙ¶È£¬ÕâÊÇ»ðÑæÇÖÈëÎ´È¼ÆøÌåµÄËÙ¶È¡£»ðÑæËÙ¶ÈÊÇָȼÉÕËٶȼÓÉÏÎ´È¼ÆøÌå×ÔÉíµÄÁ÷¶¯ËÙ¶È£¬ÊÇÖ¸»ðÑæµÄÕûÌåËÙ¶È£¬Á½ÕßÓеã²î±ð¡£
5Â¥2012-12-17 12:57:47
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

sjtusyc

гæ (³õÈëÎÄ̳)

ÒýÓûØÌû:
4Â¥: Originally posted by liuqiong1004 at 2012-12-17 11:00:16
ÎÒ¾õµÃ¿ÉÒÔ¸üÑϸñµÄÕâÑù˵£¬»ðÑæ£¨´«²¥/ÂûÑÓ£©ËÙ¶ÈÓë»ðÑæÇ°·æµÄ¾¶ÏòËÙ¶ÈÊÇÒ»Öµģ¬ÊµÑéÊÒÀï½øÐвâÁ¿»ù±¾ÉÏÒ²ÊǸù¾ÝÕâ¸ö¹æÔòÀ´µÄ¡£
ÖÁÓÚ³µÂÖµÄÐÐ×ߣ¬¸ú»ðÑæ´«²¥ÊÇÓÐÒ»¶¨µÄ²î±ðµÄ¡£¶þÂ¥µÄ±ÈÓ÷²»Ì«¶Ô
³µÂÖÐÐ×ßʱ£¬³µ ...

лл»Ø¸´£¬Äã¿ÉÒÔ¿´ÏÂÕâµÀÌâÄ¿¡£
6Â¥2012-12-17 20:53:51
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

sjtusyc

гæ (³õÈëÎÄ̳)

ÒýÓûØÌû:
5Â¥: Originally posted by chinavictor at 2012-12-17 12:57:47
»ðÑæËÙ¶ÈÓÐÁ½ÖÖ£¬Ò»ÖÖÊÇȼÉÕËÙ¶È£¬Ò»ÖÖÊÇ»ðÑæËÙ¶È¡£È¼ÉÕËÙ¶ÈÖ¸ËùÑо¿µãµÄ·¨ÏòËÙ¶È£¬ÕâÊÇ»ðÑæÇÖÈëÎ´È¼ÆøÌåµÄËÙ¶È¡£»ðÑæËÙ¶ÈÊÇָȼÉÕËٶȼÓÉÏÎ´È¼ÆøÌå×ÔÉíµÄÁ÷¶¯ËÙ¶È£¬ÊÇÖ¸»ðÑæµÄÕûÌåËÙ¶È£¬Á½ÕßÓеã²î±ð¡£

лл²ÎÓëÌÖÂÛ£¬°´ÎÒµÄÀí½â»ðÑæËÙ¶ÈÊÇȼÉÕ²¨Ïà¶ÔÓÚ½éÖʵĴ«²¥ËÙ¶È£¬ÓеãÀàËÆÂíºÕ²¨¡£ÔÚÕâ¸öÌâÄ¿À»ðÑæ·âÃæÄÚ²¿ÒÑÈ»ÆøÌåÊÇÓÐËٶȵģ¬ÒòΪȼÉÕºóÅòÕÍ£¬ÊDz»ÊÇ»ðÑæÃæµÄ¾¶ÏòËٶȾÍÈçÄãËù˵µÄ»ðÑæÈëÇÖÎ´È¼ÆøÌåµÄËÙ¶ÈÓ¦¸ÃµÈÓÚ»ðÑæËٶȼÓÉÏÓÉÓÚÅòÕͶø²úÉúµÄËÙ¶ÈÄØ£¿
7Â¥2012-12-17 21:01:11
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

sjtusyc

гæ (³õÈëÎÄ̳)

ÒýÓûØÌû:
7Â¥: Originally posted by sjtusyc at 2012-12-17 21:01:11
лл²ÎÓëÌÖÂÛ£¬°´ÎÒµÄÀí½â»ðÑæËÙ¶ÈÊÇȼÉÕ²¨Ïà¶ÔÓÚ½éÖʵĴ«²¥ËÙ¶È£¬ÓеãÀàËÆÂíºÕ²¨¡£ÔÚÕâ¸öÌâÄ¿À»ðÑæ·âÃæÄÚ²¿ÒÑÈ»ÆøÌåÊÇÓÐËٶȵģ¬ÒòΪȼÉÕºóÅòÕÍ£¬ÊDz»ÊÇ»ðÑæÃæµÄ¾¶ÏòËٶȾÍÈçÄãËù˵µÄ»ðÑæÈëÇÖÎ´È¼ÆøÌåµÄËÙ¶ÈÓ¦ ...

ÎÒÓÐÒ»¸ö¿´ÆðÀ´±È½ÏºÃµÄ½âÊÍ·½·¨£¬ÇëÄãÃÇ¿´¿´¶Ô²»¶Ô¡£°Ñ×ø±êϵ½¨Á¢ÔÚ»ðÑæÃæÉÏ£¬ÕâÑù£¬Î´È¼ÆøÌ彫ÒÔ»ðÑæËÙ¶ÈÏò»ðÑæÃæÁ÷¶¯¡£ÓÉÓÚ»ðÑæÃæÄÚ²¿ÆøÌåµÄÅòÕÍ£¬×ø±êϵÏà¶ÔÓÚ¾²Ö¹µÄ¿Õ¼äÒ²ÓÐÒ»¸öËÙ¶È¡£ËùÒÔ»ðÑæ·æÃæµÄÏà¶ÔÓÚ¾²Ö¹¿Õ¼äµÄËÙ¶ÈÊÇ»ðÑæËٶȼÓÉÏÄÚ²¿ÆøÌåÅòÕ͵ÄËÙ¶È¡£
ÕâÑùµÄ»°»ðÑæËٶȺͻðÑæÃæµÄ¾¶ÏòËٶȲ»ÊÇÒ»¸ö¸ÅÄî¡£
ÕâÑùÀí½â¶ÔÂð£¿
8Â¥2012-12-17 21:23:03
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

liuqiong1004

½ð³æ (СÓÐÃûÆø)

¡¾´ð°¸¡¿Ó¦Öú»ØÌû

¾ÍÌâÄ¿±¾Éí¶øÑÔ£¬ÈýÖÖËÙ¶È
²ãÁ÷»ðÑæ´«²¥ËÙ¶È
²ãÁ÷»ðÑæÅòÕÍËÙ¶È
²ãÁ÷»ðÑæÈ¼ÉÕËÙ¶È
¿´ÄãÈÏΪflame speedµ½µ×Ö¸ÄĸöÁË
ºÃºÃѧϰÌìÌìÏòÉÏ
9Â¥2012-12-18 09:26:46
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

sjtusyc

гæ (³õÈëÎÄ̳)

ÒýÓûØÌû:
9Â¥: Originally posted by liuqiong1004 at 2012-12-18 09:26:46
¾ÍÌâÄ¿±¾Éí¶øÑÔ£¬ÈýÖÖËÙ¶È
²ãÁ÷»ðÑæ´«²¥ËÙ¶È
²ãÁ÷»ðÑæÅòÕÍËÙ¶È
²ãÁ÷»ðÑæÈ¼ÉÕËÙ¶È
¿´ÄãÈÏΪflame speedµ½µ×Ö¸ÄĸöÁË

flame spped µ±È»Ö¸µÄÊÇ»ðÑæ´«²¥ËÙ¶ÈÁË¡£ÄܸüÏêϸµÄ·ÖÎöÏÂÂð£¿
10Â¥2012-12-18 12:07:31
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû
Ïà¹Ø°æ¿éÌø×ª ÎÒÒª¶©ÔÄÂ¥Ö÷ sjtusyc µÄÖ÷Ìâ¸üÐÂ
×î¾ßÈËÆøÈÈÌûÍÆ¼ö [²é¿´È«²¿] ×÷Õß »Ø/¿´ ×îºó·¢±í
[¿¼ÑÐ] Ò»Ö¾Ô¸Ö£ÖÝ´óѧ²ÄÁÏÓ뻯¹¤085600£¬Çóµ÷¼Á +27 ³ÔµÄ²»ÉÙ 2026-04-02 27/1350 2026-04-06 15:19 by 495374996
[¿¼ÑÐ] Ò»Ö¾Ô¸Äϲý´óѧ£¬085600£¬344·ÖÇóµ÷¼Á +9 µ÷¼ÁÉϰ¶«^ 2026-04-05 10/500 2026-04-06 09:30 by dongzh2009
[¿¼ÑÐ] 315Çóµ÷¼Á +14 ÐÀϲ777 2026-04-04 15/750 2026-04-06 06:25 by houyaoxu
[¿¼ÑÐ] 296Çóµ÷¼Á +3 Íô£¡£¿£¡ 2026-04-05 4/200 2026-04-05 20:13 by à£à£à£0119
[¿¼ÑÐ] 308Çóµ÷¼Á +4 maverick^_^ 2026-04-03 4/200 2026-04-05 19:08 by À¶ÔÆË¼Óê
[¿¼ÑÐ] 085600µ÷¼Á +9 ¶«ÕÕÕÕÕÕ 2026-04-04 9/450 2026-04-05 13:44 by ujn_zhuj
[¿¼ÑÐ] 298·Ö 070300Çóµ÷¼Á +15 zwen03 2026-04-02 15/750 2026-04-05 12:52 by Hdyxbekcb
[¿¼ÑÐ] ²ÄÁϹ¤³Ì085601Êý¶þÓ¢Ò»335Çóµ÷¼Á +6 Ë«ÂíβƦÀϰå2 2026-03-31 6/300 2026-04-04 22:29 by hemengdong
[¿¼ÑÐ] µ÷¼Á0855-288 +5 xÐܶþa 2026-04-03 5/250 2026-04-04 00:19 by Öí»á·É
[¿¼ÑÐ] 372·Ö²ÄÁÏÓ뻯¹¤£¨085600£©Ò»Ö¾Ô¸ºþÄÏ´óѧÇóµ÷¼Á +3 À¶¼ãƬ 2026-04-03 4/200 2026-04-03 17:58 by Jimmyandyou
[¿¼ÑÐ] Çóµ÷¼Á22408 288·Ö +5 new382 2026-04-02 5/250 2026-04-03 09:13 by ×íÔÚ·çÀï
[¿¼ÑÐ] ÉúÎïѧ308·ÖÇóµ÷¼Á£¨Ò»Ö¾Ô¸»ª¶«Ê¦´ó£© +6 ÏàÐűػá¹ââÍòÕ 2026-03-31 7/350 2026-04-02 23:16 by JourneyLucky
[¿¼ÑÐ] ²ÄÁϹ¤³Ì322·Ö +8 ¹þ¹þ¹þºðºðºð¹þ 2026-04-01 8/400 2026-04-02 11:53 by 3041
[¿¼ÑÐ] ²ÄÁÏר˶322·Ö +11 ¹þ¹þ¹þºðºðºð¹þ 2026-04-01 11/550 2026-04-02 10:52 by lnilvy
[¿¼ÑÐ] 0710ÉúÎïѧÇóµ÷¼Á +9 manman511 2026-04-01 9/450 2026-04-02 10:00 by zxl830724
[¿¼ÑÐ] 286Çóµ÷¼Á +5 Sa67890. 2026-04-01 7/350 2026-04-01 19:50 by 6781022
[¿¼ÑÐ] Çóµ÷¼Á +4 ͼ¼ø212 2026-03-30 5/250 2026-04-01 15:32 by ͼ¼ø212
[¿¼ÑÐ] 08¹¤¿Æ£¬295£¬½ÓÊÜ¿çרҵµ÷¼Á +6 lmnlzy 2026-03-31 6/300 2026-04-01 11:02 by ÄæË®³Ë·ç
[¿¼ÑÐ] Ò»Ö¾Ô¸ ÄϾ©º½¿Õº½Ìì´óѧ £¬080500²ÄÁÏ¿ÆÑ§Ó빤³Ìѧ˶ +10 @taotao 2026-03-31 11/550 2026-04-01 09:43 by xiayizhi
[¿¼ÑÐ] 085601Ó¢¶þÊý¶þÇóµ÷¼Á ×Ü·Ö325 +4 Óຽº½ 2026-03-31 4/200 2026-03-31 17:38 by ÌÆãå¶ù
ÐÅÏ¢Ìáʾ
ÇëÌî´¦ÀíÒâ¼û