»¯¹¤Ô­Àí¿Î³ÌÉè¼Æ

u0.min?Vs.minA0?4.4C0?6.1m/sʵ¼Ê¿×ËÙu0?12.58m/s?u0.min

?0.0056?0.13hL?h¦Ò??L/?V?4.4?0.787(0.0056?0.13?0.06?0.0021)?806.435/2.94

Îȶ¨ÏµÊýΪK?u0u0.min?12.58/6.1?2.06?1.5 ¹ÊÔÚ±¾Éè¼ÆÖÐÎÞÃ÷ÏÔ©Һ¡£ (5) Òº·º

Ϊ·ÀÖ¹ËþÄÚ·¢ÉúÒº·º£¬½µÒº¹ÜÄÚÒº²ã¸ßHdÓ¦·þ´ÓÏÂʽËù±íʾµÄ¹ØÏµ£¬¼´£º

Hd??(HT?hw)

±½¡ª¼×±½ÎïϵÊôÒ»°ãÎïϵ£¬È¡??0.5£¬Ôò£º

?(HT?hw)?0.5?(0.4?0.049)?0.2245m

¶ø Hd?hp?hL?hd

°åÉϲ»Éè½ø¿ÚÑߣ¬hd°´ÏÂʽ¼ÆË㣺

hd?0.153?u'0??0.153?0.12?0.00153m

2Hd?0.0804?0.06?0.00153?0.1429m

Hd??(HT?hw)£¬¹Ê±¾Éè¼ÆÖв»»á·¢ÉúÒº·ºÏÖÏó¡£

5.2.5.¾«Áó¶ÎËþ°å¸ººÉÐÔÄÜͼ

(1)©ҺÏß

ÓÉu0.min?Vs.minA0?4.4C0[0.0056?0.13(hw?how)?h?]?L/?V u0,min=

Vs,min A0 hL=hW?hOW

?Lh?2.84how??E???l?? 1000?w?23µÃ£º

Vs0.min?4.4C0A023??????L2.84??h???E??h?0.0056?0.13?hw????L/?V??1000??lw????????23???2.84?3600Ls????806.435?4.4?0.787?0.101?0.318??0.0056?0.13??0.049??1?????0.0021??10002.94?0.53??????????1.850.0117?0.1324LS23

ÔÚ²Ù×÷·¶Î§ÄÚ£¬ÈÎÈ¡¼¸¸öLsÖµ£¬ÒÀÉÏʽ¼ÆËã³öVsÖµ£¬¼ÆËã½á¹ûÁÐÓÚϱí

±í5-5 ©ҺÏß¼ÆËã½á¹û

Ls/(m3/s) 0.0006 0.003 0.006 0.009 Vs/(m3/s) 0.208 0.2144 0.2345 0.2442

ÓÉÉϱíÊý¾Ý¼´¿É×÷³ö©ҺÏß1 (2)Һĭ¼Ð´øÏß

ÒÔev?0.1kgÒº/kgÆøÎªÏÞ£¬ÇóVs?Ls¹ØÏµÈçÏ£º

ev?5.7?10?6?L(ua)3.2HT?hf3600?Ls2/32/3)?1.02Ls0.532/32/3ÓÉhf?2.5hL?2.5(hw?how)?2.5(0.049?1.02Ls)?0.123?2.55Ls how?2.84?10?3?1?(HT?hf?0.277?2.55Ls2/31.373Vs5.7?10?6ev?()3.2?0.1?32/320.64?100.277?2.2LsÕûÀíµÃVs?1.272?11.71Ls2/3

ÔÚ²Ù×÷·¶Î§ÄÚ£¬ÈÎÈ¡¼¸¸öLsÖµ£¬ÒÀÉÏʽ¼ÆËã³öVsÖµ£¬¼ÆËã½á¹ûÁÐÓÚϱí

±í5-6 Һĭ¼Ð´øÏß¼ÆËã½á¹û

Ls/(m3/s) 0.0006 0.003 0.006 0.009 Vs/(m3/s) 1.189 1.028 0.885 0.765

ÓÉÉϱíÊý¾Ý¼´¿É×÷³öҺĭ¼Ð´øÏß2 (3)ÒºÏฺºÉÏÂÏÞÏß

¶ÔÓÚÆ½Ö±Ñߣ¬È¡ÑßÉÏÒº²ã¸ß¶Èhow=0.006×÷Ϊ×îСҺÌ帺ºÉ±ê×¼:

2.84 hOW=

1000?3600Ls??E??l??W?2/3?0.006

È¡E=1£¬Ôò

how?2.84?10?3?1?(3600?Ls2/32/3)?1.02Ls?0.006 0.53Ls,min?0.000451m3/s

¾Ý´Ë¿É×÷³öÓëÆøÌåÁ÷Á¿Î޹صĴ¹Ö±ÒºÏฺºÉÏÂÏÞÏß3 (4)ÒºÏฺºÉÉÏÏÞÏß

ÒÔ??4s×÷ΪҺÌåÔÚ½µÒº¹ÜÖÐÍ£Áôʱ¼äµÄÏÂÏÞ ¦Ó=

AfHTLs=4

¹Ê Ls,max?=

AfHT4=

0.0363?0.40?0.00363m2/s

4¾Ý´Ë¿É×÷³öÓëÆøÌåÁ÷Á¿Î޹صĴ¹Ö±ÒºÏฺºÉÉÏÏÞÏß4¡£ (5)Òº·ºÏß ÁîHd??(HT?hw)

ÓÉHd?hp?hL?hd?hc?hl?h??hd?hL

hl??hLhL?hw?how

ÁªÁ¢½âµÃ?HT?(????1)hw?(??1)how?hc?h??hd

ºöÂÔh?£¬½«howÓëLs£¬hdÓëLs£¬hcÓëVsµÄ¹ØÏµÊ½´úÈëÉÏʽ£¬²¢ÕûÀíµÃ£º

a'Vs?b'?c'Ls?d'Ls222/3

?11?2.94???..?2?9.81?0.101?0.318?0.787?2?806.435??0.291

???ʽÖÐa'???V11?..2?2g?A0C0???Lb'??HT?(????1)hw?0.5?0.40?(0.5?0.61?1)?0.049?0.146

c'?0.153(lwh0)2?0.153(0.53?0.0208)22/3?1259

?3?3600?d'?2.84?10?3?E?(1??)???l???w?2?2.84?10?3600??1?(1?0.61)????0.53?22/32/3?1.64½«ÓйصÄÊý¾Ý´úÈëÕûÀí£¬µÃVs?0.502?4937.3Ls?6.43Ls

ÔÚ²Ù×÷·¶Î§ÄÚ£¬ÈÎÈ¡¼¸¸öLsÖµ£¬ÒÀÉÏʽ¼ÆËã³öVsÖµ£¬¼ÆËã½á¹ûÁÐÓÚϱí

±í5-7Òº·ºÏß¼ÆËã±í

Ls/(m3/s) 0.0006 0.003 0.006 Vs/(m3/s) 0.674 0.569 0.335

ÓÉÉÏ±í¼´¿É×÷³öÒº·ºÏß5

¸ù¾ÝÒÔÉϸ÷Ïß·½³Ì£¬¿É×÷³öɸ°åËþµÄ¸ººÉÐÔÄÜͼ£¬ÈçÏÂͼ£º

ͼ5-1¾«Áó¶Îɸ°åËþµÄ¸ººÉÐÔÄÜͼ ÔÚ¸ººÉÐÔÄÜͼÉÏ£¬×÷³ö²Ù×÷µãA£¬Á¬½ÓOA£¬¼´×÷³ö²Ù×÷Ïß¡£ÓÉÉÏͼ¿É¿´³ö£¬¸Ãɸ°åµÄ²Ù×÷ÉÏÏÞΪҺ·º¿ØÖÆ£¬ÏÂÏÞΪ©Һ¿ØÖÆ¡£ÓÉͼ²éµÃ£º Vs,min = 0.21m3/s Vs,max= 0.63m3/s

ÁªÏµ¿Í·þ£º779662525#qq.com(#Ìæ»»Îª@)