水柱底部压力计算 1米水柱对应几多的压力？
\u538b\u529b\u548c\u6c34\u67f1\u9ad8\u5ea6\u662f\u600e\u4e48\u6362\u7b97\u7684\uff1f1\u7c73\u6c34\u67f1\u7684\u538b\u529b\u4e3a0.01Mpa\uff1a\u957f\u5bbd\u9ad8\u5404\u4f4d1\u7c73\u7684\u6c34\u7acb\u65b9,\u91cd\u91cf10000N\uff0c\u9664\u4ee5\u5e95\u9762\u79ef\uff081\u5e73\u65b9\u7c73\uff09\uff0c\u538b\u529b\u5c31\u662f10000Pa\uff1d10Kpa\uff1d0.01Mpa\u3002\u6c34\u67f1\u538b\u5f3a=\u6c34\u7684\u5bc6\u5ea6x\u5927\u6c14\u538bx\u6c34\u67f1\u9ad8\u5ea6,\u538b\u529b\u7684\u8bdd\u518d\u4e58\u4ee5\u5355\u4f4d\u9762\u79ef\u5c31\u597d\u3002
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\u538b\u529b\u7684\u4f5c\u7528\u65b9\u5411\u901a\u5e38\u5782\u76f4\u4e8e\u7269\u4f53\u7684\u63a5\u89e6\u9762\u3002\u5982\u679c\u89c2\u6d4b\u5230\u538b\u529b\u7684\u4f5c\u7528\u65b9\u5411\u4e0e\u63a5\u89e6\u9762\u5e76\u4e0d\u5782\u76f4\uff0c\u901a\u5e38\u662f\u7531\u4e8e\u538b\u529b\u548c\u6469\u64e6\u529b\u5171\u540c\u4f5c\u7528\u7684\u7ed3\u679c\u3002
\u6269\u5c55\u8d44\u6599\uff1a
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\u628a\u4f5c\u7528\u57281\u5e73\u65b9\u5398\u7c73\u4e0a\u7684\u5355\u4f4d\u4f5c\u7528\u529b\uff081\u514b\u529b\uff09\u4f5c\u4e3a\u538b\u529b\u7684\u5355\u4f4d\u3002\u4f46\u662f\uff0c\u5728\u5b9e\u9645\u5e94\u7528\u65f6\u5b83\u5931\u4e4b\u8fc7\u5c0f\uff0c\u5de5\u4e1a\u4e0a\u91c7\u7528\u7684\u538b\u529b\u5355\u4f4d\u662f\u5343\u514b\u529b/\u5398\u7c73\u3002\u5728\u6d77\u5e73\u9762\u4e0a\u7684\u5927\u6c14\u538b\u529b\u4e3apA=1 033\u514b\u529b/\u5398\u7c73^2\uff0c\u4e0e\u5de5\u4e1a\u4e0a\u91c7\u7528\u7684\u538b\u529b\u5355\u4f4d\u6bd4\u8f83\u63a5\u8fd1\u3002\u56fd\u9645\u5355\u4f4d\u5236\uff08SI\uff09\u4e2d\u7684\u538b\u529b\u5355\u4f4d\u662f\u5e15\uff08\u65af\u5361\uff09\uff0c1\u5e15=1\u725b\u987f/\u7c73^2\u3002
\u53c2\u8003\u8d44\u6599\u6765\u6e90\uff1a\u767e\u5ea6\u767e\u79d1--\u538b\u529b
1\u7c73\u6c34\u67f1\u5927\u7ea6\u7b49\u4e8e0.01mpa
1\u5146\u5e15(MPa)=10\u5df4(bar)=9.8\u5927\u6c14\u538b(atm) \u2248\u5341\u4e2a\u5927\u6c14\u538b
1\u6807\u51c6\u5927\u6c14\u538b=760mm\u6c5e\u67f1=1.01325\u00d710^5Pa=10.336m\u6c34\u67f1
\u6240\u4ee5\uff1a1\u5146\u5e15=9.8*10.336=101.2928\u2248101\u7c73\u6c34\u67f1
1\u7c73\u6c34\u67f1=0.0097mpa\u22480.01mpa
\u6269\u5c55\u8d44\u6599\uff1a
\u538b\u529b\u6362\u7b97\u5173\u7cfb\uff1a
1\u8fbe\u56e0/\u5e73\u65b9\u5398\u7c73\uff08dyn/cm2\uff09=0.1\u5e15\uff08Pa\uff09
1\u6258\uff08Torr\uff09=133.322\u5e15\uff08Pa\uff09
1\u6beb\u7c73\u6c5e\u67f1\uff08mmHg\uff09=133.322\u5e15\uff08Pa\uff09
1\u6beb\u7c73\u6c34\u67f1=9.80665\u5e15\uff08Pa\uff09
1\u5de5\u7a0b\u5927\u6c14\u538b=98.0665\u5343\u5e15\uff08kPa\uff09
1\u5343\u5e15\uff08kPa\uff09=0.145\u78c5\u529b/\u5e73\u65b9\u82f1\u5bf8\uff08psi\uff09=0.0102\u5343\u514b\u529b/\u5e73\u65b9\u5398\u7c73\uff08kgf/cm2\uff09=0.0098\u5927\u6c14\u538b
\u53c2\u8003\u8d44\u6599\u6765\u6e90\uff1a\u767e\u5ea6\u767e\u79d1-\u538b\u529b\u5355\u4f4d
=ρ液ghS
=1000*10*20*πR^2
=2*10^5*3.14*75^2/10^-6
=47.1N
绛旓細P=蟻gh
绛旓細P=蟻gh=1000kg/绔嬫柟绫 X 10N/kg X 0.06m =600甯曟柉鍗 60mm姘存煴浜х敓鐨鍘嬪己鏄600甯曟柉鍗 姹鍘嬪姏鐨勮瘽锛岃繕瑕佺煡姘存煴鐨勫簳闈㈢НS鎵嶈锛岀敤鍏紡F锛漃S灏辫浜 涓嶆槑鍙拷闂
绛旓細4绫姘存煴=0,4Kg/cm²=0,04MPa
绛旓細4绫姘存煴=0,4Kg/cm²=0,04MPa
绛旓細姘存煴楂樺害涓鍘嬪姏涔嬮棿鐨勬崲绠楀叧绯诲涓嬶細閫氬父鏉ヨ锛1绫崇殑姘存煴澶х害瀵瑰簲0.01鍏嗗笗锛圡Pa锛夌殑鍘嬪姏銆傚叿浣璁＄畻濡備笅锛1鍏嗗笗(MPa)绛変簬10宸(bar)锛屼篃绛変簬9.8涓ぇ姘斿帇(atm)锛屽ぇ绾︾浉褰撲簬10涓ぇ姘斿帇銆傝1涓爣鍑嗗ぇ姘斿帇绛変簬760姣背姹炴煴锛屾垨鑰1.01325脳105甯曟柉鍗(Pa)锛屾崲绠楁垚姘存煴楂樺害澶х害涓10.336绫炽傚洜姝わ紝1鍏嗗笗鐨...
绛旓細1绫虫按鏌辩殑鍘嬪姏涓0.01Mpa锛氶暱瀹介珮鍚勪綅1绫崇殑姘寸珛鏂,閲嶉噺10000N锛岄櫎浠ュ簳闈㈢Н锛1骞虫柟绫筹級锛屽帇鍔涘氨鏄10000Pa锛10Kpa锛0.01Mpa銆姘存煴鍘嬪己=姘寸殑瀵嗗害x澶ф皵鍘媥姘存煴楂樺害,鍘嬪姏鐨勮瘽鍐嶄箻浠ュ崟浣嶉潰绉氨濂姐
绛旓細120mm姘存煴绛変簬1200Pa鍘嬪姏銆100mm姘存煴灏辨槸 P=1000*10*0.1=1000Pa锛 鍘嬪己=瀵嗗害*閲嶅姏鍔犻熷害*楂樺害銆1鏍囧噯澶ф皵鍘=760姣背姹炴煴=76鍘樼背姹炴煴=1.013脳105甯曟柉鍗=10.336绫虫按鏌便 琛ㄥ帇鍔涘姞涓婂ぇ姘斿帇鍔涘氨鏄粷瀵瑰帇鍔涳紝浠ョ粷瀵圭湡绌轰负闆剁畻璧风殑銆傞噴涔 鍘嬪姏鍦ㄧ墿鐞嗗鏂归潰鎸囧瀭鐩翠綔鐢ㄥ湪鐗╀綋琛ㄩ潰涓婄殑鍔涖傚彈鍔涚墿鏄墿浣...
绛旓細1绫姘存煴澶х害绛変簬0.01mpa 1鍏嗗笗(MPa)=10宸(bar)=9.8澶ф皵鍘(atm) 鈮堝崄涓ぇ姘斿帇 1鏍囧噯澶ф皵鍘=760mm姹炴煴=1.01325脳10^5Pa=10.336m姘存煴 鎵浠ワ細1鍏嗗笗=9.8*10.336=101.2928鈮101绫虫按鏌 1绫虫按鏌=0.0097mpa鈮0.01mpa
绛旓細渚濇嵁鎵▼20M锛屽彲浠璁＄畻鍑20绫姘存煴搴曢儴鐨鍘嬪己涓篜=姘存煴楂*姘村瘑搴=0.2MPa,鐢辨寰楃煡娉电殑鍑哄彛鍘嬪姏涓嶅皬浜0.2MPa銆傚彟涓鏂归潰锛屾按娉电殑鎵▼鏍囩О20m锛屽嵆渚跨暀鏈変竴瀹氱殑浜庨兘锛岀湡姝ｇ殑鎵▼涔熶笉澶彲鑳借秴杩囨鏍囩О鍊煎緢澶氾紝鎸夋渶楂樻壃绋40M锛屽垯鍑哄彛鍘嬪姏灏忎簬0.4MPa锛屽嵆鍙互閫夌敤鏈澶ч噺绋0.4MPa鐨勫帇鍔涜〃銆(1) 鍘嬪姏鍦ㄤ竴40...
绛旓細1绫姘存煴澶х害绛変簬0.01mpa 1鍏嗗笗(MPa)=10宸(bar)=9.8澶ф皵鍘(atm) 鈮堝崄涓ぇ姘斿帇 1鏍囧噯澶ф皵鍘=760mm姹炴煴=1.01325脳10^5Pa=10.336m姘存煴 鎵浠ワ細1鍏嗗笗=9.8*10.336=101.2928鈮101绫虫按鏌 1绫虫按鏌=0.0097mpa鈮0.01mpa
