\u672c\u6587\u6838\u5fc3\u8bcd\uff1a\u6d41\u4f53\u529b\u5b66\u8bd5\u9898\u3002<\/p>\n
\u6d41\u4f53\u529b\u5b66\u8bd5\u53772<\/p>\n
\u4e00\u3001\u540d\u8bcd\u89e3\u91ca<\/p>\n
1\u96f7\u8bfa\u6570 2\u3001\u6d41\u7ebf 3\u3001\u538b\u529b\u4f53 4\u3001\u725b\u987f\u6d41\u4f53 5\u3001\u6b27\u62c9\u6cd5 6\u3001\u62c9\u683c\u6717\u65e5\u6cd5 7\u3001\u6052\u5b9a\u6d41\u52a8 8\u3001\u6d41\u573a 9\u3001\u65e0\u65cb\u6d41\u52a8 10\u3001\u7a33\u5b9a\u6d41\u52a8 11\u3001\u4e0d\u53ef\u538b\u7f29\u6d41\u4f53 12\u3001\u6d41\u573a 13\u3001\u65e0\u65cb\u6d41\u52a8 14\u3001\u6709\u65cb\u6d41\u52a8 15\u3001\u9a7b\u70b9 16\u63a7\u5236\u4f53 17\u7406\u60f3\u6d41\u4f53<\/p>\n
\u4e8c\u3001\u7b80\u7b54\u9898<\/p>\n
1\u3001\u6d41\u4f53\u9759\u538b\u5f3a\u7684\u7279\u6027\u662f\u4ec0\u4e48\uff1f<\/p>\n
2\u3001\u5c3c\u53e4\u62c9\u5179\u5b9e\u9a8c\u5206\u533a\u7ea7\u610f\u4e49\u662f\u4ec0\u4e48\uff1f 3\u3001\u8fd0\u52a8\u7c98\u6ede\u7cfb\u6570r\u7684\u7269\u7406\u610f\u4e49\u662f\u4ec0\u4e48\uff1f<\/p>\n
4\u3001\u6d41\u4f53\u52a8\u529b\u7c98\u6ede\u7cfb\u6570u\u7684\u7269\u7406\u610f\u4e49\u662f\u4ec0\u4e48\uff1f 5\u3001\u4f2f\u52aa\u5229\u65b9\u7a0bz?<\/p>\n
pr?u<\/p>\n
2<\/p>\n
2g<\/p>\n
?<\/p>\n
\u5e38\u6570\u4e2d\u5404\u9879\u7684\u7269\u7406\u610f\u4e49\uff1f<\/p>\n
6\u3001\u7b80\u8981\u8bf4\u660e\u7ba1\u9053\u6d41\u52a8\u5c40\u90e8\u963b\u529b\u635f\u5931\u4ea7\u751f\u7684\u673a\u7406\u3002<\/p>\n
7\u3001\u4e0b\u5f0f\u4e0d\u53ef\u538b\u7f29\u6d41\u4f53N-S\u65b9\u7a0b\u4e2d\uff0c\u5404\u9879\u7684\u7269\u7406\u610f\u4e49\u662f\u4ec0\u4e48\uff1f X<\/p>\n
8\u3001\u4ec0\u4e48\u662f\u6d41\u4f53\u7684\u8fde\u7eed\u4ecb\u8d28\u6a21\u578b\uff1f\u5b83\u5728\u6d41\u4f53\u529b\u5b66\u4e2d\u6709\u4f55\u4f5c\u7528\uff1f<\/p>\n
?1?p<\/p>\n
??\uff08<\/p>\n
?ux?x<\/p>\n
22<\/p>\n
??x<\/p>\n
?<\/p>\n
?uy?y<\/p>\n
2<\/p>\n
2<\/p>\n
?<\/p>\n
?uz?z<\/p>\n
2<\/p>\n
2<\/p>\n
\uff09?<\/p>\n
dudt<\/p>\n
x<\/p>\n
\u4e09\u3001\u8ba1\u7b97\u9898<\/p>\n
1\u3001\u5982\u56fe\u6240\u793a\uff0c\u4e00\u6cb9\u7f38\u53ca\u5176\u4e2d\u6ed1\u52a8\u6813\u585e\uff0c\u5c3a\u5bf8D=120.2mm\uff0cd=119.8mm\uff0cL=160mm\uff0c\u95f4\u9699\u5185\u5145\u6ee1\u03bc=0.065Pa\u30fbS\u7684\u6da6\u6ed1\u6cb9\uff0c\u82e5\u65bd\u52a0\u6d3b\u585e\u4ee5F=10N\u7684\u62c9\u529b,\u8bd5\u95ee\u6d3b\u585e\u5300\u901f\u8fd0\u52a8\u65f6\u7684\u901f\u5ea6\u662f\u591a\u5c11\uff1f\uff0810\u5206\uff09<\/p>\n
2\u3001\u5982\u56fe\u6240\u793a\u4e00\u76db\u6c34\u5bb9\u5668\uff0c\u5df2\u77e5\u5e73\u58c1AB=CD=2.5m\uff0cBC\u53caAD\u4e3a\u534a\u4e2a\u5706\u67f1\u4f53\uff0c\u534a\u5f84R=1m\uff0c\u81ea\u7531\u8868\u9762\u5904\u538b\u5f3a\u4e3a\u4e00\u4e2a\u5927\u6c14\u538b\uff0c\u9ad8\u5ea6H=3m\uff0c\u8bd5\u5206\u522b\u8ba1\u7b97\u4f5c\u7528\u5728\u5355\u4f4d\u957f\u5ea6\u4e0aAB\u9762\u3001BC\u9762\u548cCD\u9762\u6240\u53d7\u5230\u7684\u9759\u6c34\u603b\u538b\u529b\u3002<\/p>\n
3\u3001\u539f\u578b\u6d41\u52a8\u4e2d\u6cb9\u7684\u8fd0\u52a8\u7c98\u6027\u7cfb\u6570\u03c5p=15\u00d710-5m2\/s\uff0c\u5176\u51e0\u4f55\u5c3a\u5ea6\u4e3a\u6a21\u578b\u76845\u500d\uff0c\u5982\u786e\u5b9a\u4f5b\u6c5d\u5fb7\u6570\u548c\u96f7\u8bfa\u6570\u4f5c\u4e3a\u51b3\u5b9a\u6027\u76f8\u4f3c\u51c6\u6570\uff0c\u8bd5\u95ee\u6a21\u578b\u4e2d\u6d41\u4f53\u8fd0\u52a8\u7c98\u6027\u7cfb\u6570\u03c5m=\uff1f<\/p>\n
4\u3001\u5982\u56fe\u6240\u793a\uff0c\u53d8\u76f4\u5f84\u5706\u7ba1\u5728\u6c34\u5e73\u9762\u5185\u4ee5\u03b1=30\u3002\u5f2f\u66f2\uff0c\u76f4\u5f84\u5206\u522b\u4e3ad1=0.2m\uff0cd2=0.15m\uff0c\u8fc7\u6c34\u6d41\u91cf\u82e5\u4e3aQ=0.1m3\/s\uff0cP1=1000N\/m2\u65f6\uff0c\u4e0d\u8ba1\u635f\u5931\u7684\u60c5\u51b5\u4e0b\uff0c\u6c42\u6c34\u6d41\u5bf9\u5706\u7ba1\u7684\u4f5c\u7528<\/p>\n
\u529b\u53ca\u4f5c\u7528\u529b\u7684\u4f4d\u7f6e\u3002\uff0820\u5206\uff09<\/p>\n
5\u3001\u4e24\u6c34\u6c60\u7684\u6c34\u4f4d\u5deeH=6m\uff0c\u7528\u4e00\u7ec4\u7ba1\u9053\u8fde\u63a5\uff0c\u7ba1\u9053\u7684\u7b2c\u4e00\u6bb5BC\u957fL1=3000m\uff0c\u76f4\u5f84d1=600mm\uff0cC\u70b9\u540e\u5206\u4e3a\u4e24\u6839\u957fL2=L3=3000m\uff0c\u76f4\u5f84d2=d3=300mm\u7684\u5e76\u8054\u7ba1\uff0c\u5404\u5728D\u70b9\u53caE\u70b9\u8fdb\u5165\u4e0b\u6c34\u6c60\u3002\u8bbe\u7ba1\u9053\u7684\u6cbf\u7a0b\u963b\u529b\u7cfb\u6570\u03bb=0.04\uff0c\u6c42\u603b\u6d41\u91cfQ=\uff1f\uff0820\u5206\uff09<\/p>\n
1\u3001\u6709\u4e00\u94a2\u677f\u5236\u98ce\u7ba1\uff0c\u65ad\u9762\u5c3a\u5bf8\u4e3a<\/p>\n
400mm?200mm\uff0c\u7ba1\u5185\u6c14\u6d41\u5e73\u5747\u901f\u5ea6\u4e3a1.5m<\/p>\n
\/s\uff0c\u6c14\u4f53\u8fd0\u52a8\u7c98\u6ede\u7cfb\u6570\u4e3a<\/p>\n
15.0\u00d710?8m2\/s\uff0c\u5224\u65ad\u7ba1\u5185\u6c14\u4f53\u7684\u6d41\u6001\uff1f<\/p>\n
2\u3001\u4e00\u9ad8\u538b\u7ba1\u672b\u7aef\u63a5\u55b7\u5634\uff0c\u5982\u4e0b\u56fe\u6240\u793a\uff0c\u5df2\u77e5\u55b7\u5634\u51fa\u53e3\u76f4\u5f84\u4e3a10cm\uff0c\u7ba1\u9053\u76f4\u5f84\u4e3a<\/p>\n
40cm\uff0c\u6c34\u5728\u7ba1\u4e2d\u6d41\u91cfQ\u4e3a0.4m3\/s\uff0c\u6c42\u7ba1\u5634\u5bf9\u6c34\u6d41\u7684`\u4f5c\u7528\u529b\u3002<\/p>\n
3\u3001\u5df2\u77e5\u4e0d\u53ef\u538b\u7f29\u6d41\u4f53\u7684\u6d41\u901f\u5206\u91cf\u4e3a\uff1aux?x2-y2\uff0cuy??2xy\uff0cuz?0\uff0c\u95ee\u8be5\u6d41<\/p>\n
\u52a8\u662f\u5426\u4e3a\u65e0\u65cb\u6d41\u52a8\uff1f<\/p>\n
4\u3001\u5df2\u77e5\u5e73\u9762\u6d41\u52a8\u7684\u901f\u5ea6\u5206\u91cf\u4e3a\uff1aux?x?t2\uff0cuy??y?t2\uff1b\u6c42\uff1a\u5f53t=1\u662f\u8fc7M\uff081,1\uff09\u7684\u6d41\u7ebf\u65b9\u7a0b\u3002<\/p>\n
5\u3001\u4e00\u8f66\u95f4\u7528\u76f4\u5f84\u4e3a0.5m\u7684\u98ce\u53e3\u9001\u98ce\uff0c\u98ce\u53e3\u98ce\u901f\u4e3a6.0m\/s\uff0c\u5982\u957f\u5ea6\u6bd4\u4f8b\u5e38\u6570<\/p>\n
\u4e3a4\uff0c\u786e\u5b9a\u5b9e\u9a8c\u6a21\u578b\u98ce\u53e3\u98ce\u901f\u3002\u82e5\u5728\u6a21\u578b\u5185\u6d4b\u5f97\u67d0\u70b9\u6c14\u6d41\u901f\u5ea6\u4e3a3.0m\/s\uff0c\u5219\u8f66\u95f4\u76f8\u5e94\u70b9\u7684\u901f\u5ea6\u4e3a\u591a\u5c11\uff1f\uff08\u5df2\u77e5\u7a7a\u6c14\u7684\u8fd0\u52a8\u7c98\u6ede\u7cfb\u6570\u4e3a<\/p>\n
0.0000157m<\/p>\n
2<\/p>\n
\/s\uff09<\/p>\n
lmln<\/p>\n
?116<\/p>\n
6\u3001\u5bf9\u67d0\u4e00\u6865\u58a9\u91c7\u7528\u6a21\u578b\u6bd4\u4f8b\u4e3a<\/p>\n
0.76m<\/p>\n
\u8fdb\u884c\u5b9e\u9a8c\u3002\u5df2\u77e5\u6a21\u578b\u4e2d\u6c34\u6d41\u901f\u5ea6\u4e3a<\/p>\n
\/s\uff0c\u5b9e\u6d4b\u6a21\u578b\u6865\u58a9\u53d7\u6c34\u6d41\u4f5c\u7528\u529b\u4e3a4N\u3002\u6c42\u539f\u578b\u4e2d\u76f8\u5e94\u7684\u6d41\u901f\u4e0e\u4f5c\u7528<\/p>\n
\u529b\u3002<\/p>\n
7\u3001\u5728\u6c34\u5e73\u653e\u7f6e\u7684\u7ba1\u7ebf\u4e2d\u63a5\u5f2f\u7ba1\uff0c\u76f4\u5f84\u4ece600mm\u9010\u6e10\u51cf\u5c0f\u5230300mm\uff0c\u6c34\u6d41\u65b9<\/p>\n
\u5411\u504f\u8f6c600\u5982\u56fe\u6240\u793a\uff0c\u5728\u76f4\u5f84\u8f83\u5927\u4e00\u7aef\u538b\u5f3a\u4e3a172kN\/m2,\u6c42\u4f5c\u7528\u4e8e\u5f2f\u7ba1\u4e0a\u7684\u529b\u7684\u5927\u5c0f\u548c\u65b9\u5411\uff0c\u2460\u5f53\u6c34\u4e0d\u6d41\u52a8\u65f6\uff1b\u2461\u5f53\u901a\u8fc7\u7684\u6d41\u91cf\u4e3a876L\/s\u65f6\uff1b<\/p>\n
8\u3001\u4e00\u5f27\u5f62\u95f8\u95e8AB\uff0c\u5bbd4m\uff0c\u5706\u5fc3\u89d2\u4e3a\u6c42<\/p>\n
\u4f5c<\/p>\n
\u7528<\/p>\n
\u4e8e<\/p>\n
\u95f8<\/p>\n
45\uff0c\u534a\u5f84\u4e3a<\/p>\n
2m\uff0c\u95f8\u95e8\u8f6c\u8f74\u6070\u597d\u4e0e\u6c34\u9762\u5e73\u9f50\uff0c<\/p>\n
\u95e8\u7684\u6c34\u9759\u538b\u529b\u3002<\/p>\n
9\u3001\u5982\u4e0b\u56fe\u6240\u793a\uff0c\u4e00\u6c34\u7bb1\u4fa7\u9762\u5f00\u5b54\u5e76\u63a5\u6709\u4e00\u76f4\u5f84\u4e3a50mm\u7684\u77ed\u7ba1\uff0c\u5f62\u6210\u7ba1\u5634\u51fa\u6d41\uff0c\u5df2\u77e5\u4f5c\u7528\u6c34\u5934H=5m\uff0c\u7ba1\u5634\u51fa\u6d41\u6d41\u91cf\u7cfb\u6570u=0.82\uff0c\u8bd5\u95ee\uff1a\u2460\u7ba1\u5634\u51fa\u6d41\u6d41\u91cfQ\uff1b\u2461\u9760\u8fd1\u6c34\u7bb1\u4e00\u4fa7\u7ba1\u5634\u5185\u58c1\u5f62\u6210\u771f\u7a7a\u7684\u539f\u56e0\u662f\u4ec0\u4e48\uff1f\u2462\u5408\u9002\u7684\u7ba1\u5634\u957f\u5ea6\u662f\u591a\u5c11\uff1f<\/p>\n
0\u3001\u5982\u56fe\u6240\u793a\uff0c\u4e00\u6c34\u5e73\u5c04\u6d41\u51b2\u51fb\u5149\u6ed1\u5e73\u677f\uff0c\u6d41\u91cf\u4e3aQ0,\u5bc6\u5ea6?\uff0c\u76f4\u5f84\u4e3ad0\uff0c\u6c42\uff1a\u2460\u5e73<\/p>\n
\u677f\u6240\u53d7\u7684\u51b2\u51fb\u529b\u3002\u2461\u6d41\u91cfQ1\u548cQ2<\/p>\n
11\u3001\u5982\u4e0b\u56fe\u6240\u793a\uff1a\u6c34\u7bb1\u4fa7\u58c1\u63a5\u51fa\u4e00\u6839\u7531\u4e24\u6bb5\u4e0d\u540c\u7ba1\u5f84\u6240\u7ec4\u6210\u7684\u7ba1\u9053\uff0c\u5df2\u77e5<\/p>\n
d1?200mm\uff0cd2?100mm\uff0c\u4e24\u7ba1\u77ed\u957f\u5747\u4e3aL=50m\uff0c<\/p>\n
H?10m\uff0c\u6cbf\u7a0b\u963b\u529b\u7cfb\u6570<\/p>\n
??0.01,?A?0.3,?B?0.2,\u6c42\uff1a\u7ba1\u9053\u4e2d\u6c34\u7684\u6d41\u91cf\u3001\u6d41\u901f.<\/p>\n
1\u3001\u4e00\u6839\u76f4\u5f84\u4e3ad<\/p>\n
1 = 0.1m\u7684\u6c34\u7ba1\u5782\u76f4\u653e\u7f6e\uff0c\u5728\u4e0a\u65b9\u8f6c90\u00b0\u5f2f\u540e\u7acb\u5373\u6536\u7f29\u6210\u76f4\u5f84<\/p>\n
\u4e3ad 2 = 0.05m\u55b7\u53e3\uff0c\u6c34\u4ece\u6b64\u55b7\u5165\u5927\u6c14\u4e2d\u3002\u8bbe\u55b7\u53e3\u6c34\u6d41\u901f\u5ea6\u4e3av2 =20m\/s\uff0c\u5ffd\u7565\u4e00\u5207\u635f\u5931\uff0c\u8bd5\u8ba1\u7b97\u4f4e\u4e8e\u55b7\u53e3h = 4 m\u5904\u6c34\u7ba1\u622a\u9762\u4e0a\u7684\u538b\u5f3ap1\u3002<\/p>\n
p1<\/p>\n
v1d1?v2d2<\/p>\n
v1?0.1?20?0.05v1?10m\/s<\/p>\n
?<\/p>\n
?z1??<\/p>\n
v1<\/p>\n
2<\/p>\n
2g10<\/p>\n
?<\/p>\n
2<\/p>\n
p2<\/p>\n
?<\/p>\n
?z2?<\/p>\n
v2<\/p>\n
2<\/p>\n
2g20<\/p>\n
2<\/p>\n
p19807<\/p>\n
2?9.807<\/p>\n
5<\/p>\n
?4?<\/p>\n
2?9.087<\/p>\n
p1?3.78?10Pa<\/p>\n
22\u3001\u56fe\u793a\u4e3a\u4e00\u8fde\u63a5\u4e8e\u538b\u529b\u5bb9\u5668\u7684\u5e26\u6cd5\u5170\u7684\u6536\u7f29\u51fa\u6d41\u7ba1\u5634\u3002\u8bbe\u5bb9\u5668\u5185\u538b\u529b\u8868\u8bfb\u6570\u4e3a p = 106Pa\uff0cH = 3m\uff0c\u7ba1\u5634\u5927\u5c0f\u53e3\u76f4\u5f84 D = 5cm\uff0cd = 1cm\u3002\u8bd5\u6c42\u7ba1\u5634\u4e0a\u87ba\u9489\u7fa4\u6240\u53d7\u5230\u7684\u603b\u62c9\u529b F\u3002<\/p>\n
v1D?v2d<\/p>\n
\u8fde\u7eed\u6027\u65b9\u7a0bv1?5?v2?1<\/p>\n
v2?5v1<\/p>\n
p1?p??H<\/p>\n
\u9759\u529b\u5b66\u57fa\u672c\u65b9\u7a0bp1?106?9807?3<\/p>\n
?10.3?10<\/p>\n
p1<\/p>\n
?v1<\/p>\n
2<\/p>\n
5<\/p>\n
?<\/p>\n
\u4f2f\u52aa\u5229\u65b9\u7a0b<\/p>\n
2g<\/p>\n
?<\/p>\n
5<\/p>\n
v2<\/p>\n
2<\/p>\n
2g?<\/p>\n
v1<\/p>\n
2<\/p>\n
10.3?109807<\/p>\n
2?9.807<\/p>\n
?<\/p>\n
25v1<\/p>\n
2<\/p>\n
2?9.807<\/p>\n
v1?9.26m\/s<\/p>\n
\u52a8\u91cf\u65b9\u7a0bqV?<\/p>\n
14<\/p>\n
?Dv1?<\/p>\n
2<\/p>\n
14<\/p>\n
??(5?10<\/p>\n
?2<\/p>\n
)?9.26?1.82?10<\/p>\n
2?2<\/p>\n
m\/s<\/p>\n
3<\/p>\n
?qV(v2?v1)?<\/p>\n
5<\/p>\n
?F<\/p>\n
14<\/p>\n
?p1A1?F<\/p>\n
?4<\/p>\n
F?10.3?10?F?1346.9N<\/p>\n
??25?10?1000?1.82?10<\/p>\n
?2<\/p>\n
?4?9.26<\/p>\n
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