| 鐩稿叧瀹氫箟 |
涓€绉嶄娇鎮诞鍦ㄦ祦浣撲腑鐨勫浐浣撻绮掍笅娌夎€屼笌娴佷綋鍒嗙鐨勮繃绋嬨€傚畠鏄緷闈犲湴鐞冨紩鍔涘満鐨勪綔鐢紝鍒╃敤棰楃矑涓庢祦浣撶殑瀵嗗害宸紓锛屼娇涔嬪彂鐢熺浉瀵硅繍鍔ㄨ€屾矇闄嶏紝鍗抽噸鍔涙矇闄嶃€傞噸鍔涙矇闄嶆槸浠庢皵娴佷腑鍒嗙鍑哄皹绮掔殑鏈€绠€鍗曟柟娉曘€傚彧鏈夐绮掕緝澶э紝姘旈€熻緝灏忔椂锛岄噸鍔涙矇闄嶇殑浣滅敤鎵嶈緝鏄庢樉銆侟/span>
| 閲嶅姏娌夐檷瀹ゅ師鐞咟/span> |
閲嶅姏娌夐檷瀹よ鐢ㄤ簬浠庢皵娴佷腑鍒嗙杈冨ぇ鐨勯绮?鐩村緞閫氬父澶т簬100渭m)銆傚湪娌夐檷瀹や腑锛岄绮掑彈閲嶅姏鐨勪綔鐢ㄤ粠缂撴參娴佸姩鐨勬皵娴佷腑鍒嗙鍑烘潵锛屽苟灏嗘矇绉埌浠撳簳鎴栭泦灏樻枟涓紝鑰屾皵浣撶户缁祦璧般€傚繀闇€娉ㄦ剰鐨勬槸锛屾皵浣撶寮€娌夐檷瀹ゆ椂锛屽嚭鍙ｆ皵閫熻瓒冲澶э紝浠ョ‘淇濇畫鐣欏湪姘旀祦涓殑棰楃矑涓嶅啀娌夐檷锛岄€犳垚鍥轰綋棰楃矑鐨勫爢绉紝浠庤€屽牭濉炵閬撶殑姘村钩閮ㄥ垎銆侟/span>
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| 鍗曞眰閲嶅姏娌夐檷瀹｜/span> | 澶氬眰閲嶅姏娌夐檷瀹｜/span> |
| 閲嶅姏娌夐檷瀹ょ粨鏋勫舰寮廃/span> |
閲嶅姏娌夐檷瀹ょ殑缁撴瀯涓€鑸垎涓烘按骞虫皵娴佹矇闄嶅鍜屽瀭鐩村叾娴佹矇闄嶅銆傛按骞虫皵娴佹矇闄嶅鍦ㄥ疄闄呰繍琛屾椂锛岄兘瑕佸湪瀹ゅ唴鍔犺澶囧悇绉嶆尅灏樻澘锛屼互鎻愰珮闄ゅ皹鏁堢巼銆傛矇闄嶅涔熷彲鐢ㄥ柗鍢村柗姘存潵鎻愰珮闄ゅ皹鏁堢巼銆侟/span>
| 閲嶅姏娌夐檷瀹ょ殑璁捐涓庤绠桙/span> |
鐞嗚涓婏紝鍙互璁捐涓€涓冻澶熷ぇ鐨勬矇闄嶅锛屼互楂樻晥鍒嗙灏忕矑寰勯绮掞紝浣嗙敱浜庡昂瀵告垨閫犱环鐨勯棶棰橈紝璇ユ柟娉曢€氬父涓嶅彲琛屻€傚疄闄呭簲鐢ㄤ腑锛屽湪姘旀祦涓湁涓€浜涘ぇ鐨勯绮?鐩村緞瓒呰繃100渭m)鐨勬儏鍐典笅锛屾矇闄嶅閫氬父鐢ㄥ湪鍏朵粬鍒嗙璁惧涔嬪墠锛岀敤鍋氶鍒嗙鍣紝鍥犱负澶ч绮掍細鎹熷潖浜岀骇鍒嗙璁惧锛屽叾涓竴涓渶鏅亶鐨勪緥瀛愭槸鐢ㄦ潵鍒嗙骞跺幓闄や粠鍠风爞娓呮磥鍣ㄤ腑鍑烘潵鐨勪竴浜涘潥纭拰鍏锋湁纾ㄦ崯鎬х殑鍠风爞鏉愭枡銆傚敖绠℃棆椋庡垎绂诲櫒鍙互鐢ㄨ緝灏忕殑浣撶Н杈惧埌鏇村ソ鐨勫垎绂绘晥鏋滐紝浣嗚€冭檻鍒版矇闄嶅鐨勭墿鐞嗚璁＄畝鏄撱€佸帇闄嶄綆銆佹姉棰楃矑鐨勬懇鎹熺瓑鍥犵礌锛岄€氬父浼氶€夌敤娌夐檷瀹ゃ€侟/span>
娌夐檷瀹ゅ彲鎸夊涓嬪叕寮忚繘琛岃璁★細
|
----------- Eq 1 |
鍏朵腑锛欬br/> V = 娌夐檷瀹ょ殑鏈夋晥瀹圭Н (闄ゅ幓闆嗗皹鏂楃殑瀹圭Н)锛宮3
td= 鐩村緞涓篸鐨勯绮掓矇闄嶈姹傜殑鏃堕棿锛宻
Q = 姘斾綋娴侀噺锛宮3/s
鍜孅/span>
|
----------- Eq 2 |
鍏朵腑锛欬br/> td= 鐩村緞涓篸鐨勯绮掓矇闄嶈姹傜殑鏃堕棿锛宻
h = 闄ら泦灏樻枟澶栵紝娌夐檷瀹ょ殑鏈夋晥楂樺害锛宮
UT= 鎵€鏀堕泦棰楃矑鐨勭粓绔矇闄嶉€熷害锛宮/s
涓嬭〃涓哄湪娌夐檷瀹よ璁′腑涓€浜涚粓绔矇闄嶉€熷害UT鐨勫€笺€侟/span>
| 棰楃矑鐩村緞, 渭m | 缁堢娌夐檷閫熷害 m/s |
| 0.1 | 8.7 脳 10-7 |
| 0.2 | 2.3 脳 10-6 |
| 0.4 | 6.8 脳 10-6 |
| 1 | 3.5 脳 10-5 |
| 2 | 1.19 脳 10-4 |
| 4 | 5.0 脳 10-4 |
| 10 | 3.00 脳 10-3 |
| 20 | 1.2 脳 10-2 |
| 40 | 4.8 脳 10-2 |
| 100 | 2.46 脳 10-1 |
| 400 | 1.57 |
| 1000 | 3.82 |
娉細棰楃矑瀵嗗害 = 1000 kg/m3锛 绌烘皵娓╁害涓?0鈩冿紝鍘嬪姏涓?bar銆侟br/>
鍋囪涓€涓矇闄嶅鐨勬皵浣撴祦閲忎负2.8 m3/s锛屽搴︿负3.05 m锛岄珮1.83 m锛岀敤浜庢敹闆嗙洿寰勪负400渭m鐨勯绮掞紝棰楃矑瀵嗗害涓?000 kg/m3锛屽苟涓旀皵浣撲负鏍囧噯鐘舵€佷笅鐨勭┖姘旓紝閭ｄ箞闇€瑕佹矇闄嶅鐨勯暱搴︽槸澶氬皯鍛?
楂樺害h = 1.83 m锛屼粠琛?涓彲鐭ワ紝UT = 1.57 m/s锛屼粠鏂圭▼ (Eq 2)鍙緱锛欬/span>
鍐嶇敱鏂圭▼ (Eq 1)锛屽緱锛欬/span>
鐢ㄥ叕寮 V = L脳B脳h 璁＄畻L锛 L=娌夐檷瀹ら暱搴 m锛 B锛濇矇闄嶅瀹藉害 m锛屽涓嬶細
璇ヨ绠楁柟娉曚粎鍙敤浜庤璁★紝鑰屼笉鑳藉噯纭及绠楁煇鐩村緞棰楃矑鐨勫垎绂绘晥鐜囷紝姝ゅ锛屼粎鍦ㄤ互涓嬫儏鍐典笅璁捐娌夐檷瀹ゆ椂鍙敤杩欎簺鍏紡锛欬br/> 1銆佹皵浣撳湪娌夐檷瀹ょ殑鏁翠釜妯埅闈㈠唴鍧囧寑娴佸姩锛汓br/> 2銆佹矇闄嶅鍐呮皵浣撴祦閫熶綆浜庢墍鏀堕泦棰楃矑鐨勬嬀鍙栭€熷害锛坧ick-up velocity锛夛紝濡傞绮掔殑鎷惧彇閫熷害鏈煡锛屽彲閫夌敤3 m/s銆侟br/>
涓嬭〃涓轰竴浜涘父瑙佺墿璐ㄧ殑鎷惧彇閫熷害
| 鏉愭枡 | 鎷惧彇閫熷害 m/s |
| 閾濆睉 | 4.3 |
| 鏈夎壊閲戝睘閾搁€犵矇灏楛/span> | 5.7 |
| 姘у寲閾匋/span> | 7.6 |
| 鐭崇伆鐭颤/span> | 6.4 |
| 娣€绮堻/span> | 1.8 |
| 閽㈢矇 | 4.6 |
| 鏈ㄥ睉 | 3.9 |
| 閲嶅姏娌夐檷瀹ょ殑搴旂敤 |
閲嶅姏娌夐檷瀹ゅ叿鏈夌粨鏋勭畝鍗曪紝鎶曡祫灏戯紝鍘嬪姏鎹熷け灏忕殑鐗圭偣锛岀淮淇鐞嗚緝瀹规槗锛岃€屼笖鍙互澶勭悊楂樻俯姘斾綋銆備絾鏄綋绉ぇ锛屾晥鐜囩浉瀵逛綆锛屼竴鑸彧浣滀负楂樻晥闄ゅ皹瑁呯疆鐨勯闄ゅ皹瑁呯疆锛屾潵闄ゅ幓杈冨ぇ鍜岃緝閲嶇殑绮掑瓙銆備緥濡備竴浜涚數鍘傞攨鐐夌儫灏樺拰鑰愮伀鏉愭枡鍘熸枡鐨勭矇灏樺鐞嗭紝浼氶€夌敤閲嶅姏娌夐檷瀹ゃ€侟/span>
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