{"id":752177,"date":"2024-10-05T15:58:37","date_gmt":"2024-10-05T14:58:37","guid":{"rendered":"https:\/\/www.thermal-engineering.org\/?p=752177"},"modified":"2024-10-05T15:58:37","modified_gmt":"2024-10-05T14:58:37","slug":"%e6%b5%81%e4%bd%93%e9%9d%99%e5%8a%9b%e5%ad%a6%e5%8e%9f%e7%90%86%e8%a7%a3%e6%9e%90","status":"publish","type":"post","link":"https:\/\/www.thermal-engineering.org\/zh-hans\/%e6%b5%81%e4%bd%93%e9%9d%99%e5%8a%9b%e5%ad%a6%e5%8e%9f%e7%90%86%e8%a7%a3%e6%9e%90\/","title":{"rendered":"\u6d41\u4f53\u9759\u529b\u5b66\u539f\u7406\u89e3\u6790"},"content":{"rendered":"<p class=\"sidekick\">\u6d41\u4f53\u9759\u529b\u5b66\u539f\u7406\u89e3\u6790\uff1a\u6df1\u5165\u4e86\u89e3\u6d41\u4f53\u5728\u9759\u6b62\u72b6\u6001\u4e0b\u7684\u538b\u529b\u5206\u5e03\u3001\u5e73\u8861\u6761\u4ef6\u53ca\u5176\u5e94\u7528\uff0c\u63ed\u793a\u6db2\u4f53\u548c\u6c14\u4f53\u5982\u4f55\u5728\u4e0d\u540c\u73af\u5883\u4e2d\u8868\u73b0\u3002<\/p>\n<p><img src=\"https:\/\/www.thermal-engineering.org\/wp-content\/uploads\/2024\/07\/\u6d41\u4f53\u9759\u529b\u5b66\u539f\u7406\u89e3\u6790.png\" alt=\"\u6d41\u4f53\u9759\u529b\u5b66\u539f\u7406\u89e3\u6790\" style=\"display: block; margin-left: auto; margin-right: auto;\"\/><\/p>\n<h2>\u6d41\u4f53\u9759\u529b\u5b66\u539f\u7406\u89e3\u6790<\/h2>\n<p>\u6d41\u4f53\u9759\u529b\u5b66\u662f\u7814\u7a76\u9759\u6b62\u6d41\u4f53\u7684\u884c\u4e3a\u548c\u6027\u8d28\u7684\u4e00\u95e8\u5b66\u79d1\u3002\u5728\u8fd9\u7bc7\u6587\u7ae0\u4e2d\uff0c\u6211\u4eec\u5c06\u4ecb\u7ecd\u4e00\u4e9b\u57fa\u672c\u7684\u6d41\u4f53\u9759\u529b\u5b66\u539f\u7406\uff0c\u5e2e\u52a9\u8bfb\u8005\u7406\u89e3\u8fd9\u4e00\u9886\u57df\u7684\u57fa\u7840\u77e5\u8bc6\u3002<\/p>\n<h2>\u6d41\u4f53\u9759\u529b\u5b66\u7684\u57fa\u672c\u6982\u5ff5<\/h2>\n<p>\u5728\u6d41\u4f53\u9759\u529b\u5b66\u4e2d\uff0c\u6211\u4eec\u4e3b\u8981\u5173\u6ce8\u9759\u6b62\u72b6\u6001\u4e0b\u7684\u6d41\u4f53\uff0c\u8fd9\u610f\u5473\u7740\u6d41\u4f53\u5185\u90e8\u4e0d\u5b58\u5728\u76f8\u5bf9\u8fd0\u52a8\u3002\u6d41\u4f53\u9759\u529b\u5b66\u7684\u6838\u5fc3\u539f\u7406\u5305\u62ec\u6d41\u4f53\u538b\u529b\u3001\u6d41\u4f53\u7684\u5bc6\u5ea6\u548c\u6d41\u4f53\u91cd\u529b\u7b49\u3002<\/p>\n<h2>\u6d41\u4f53\u538b\u529b<\/h2>\n<p>\u6d41\u4f53\u538b\u529b\u662f\u6d41\u4f53\u4f5c\u7528\u5728\u5355\u4f4d\u9762\u79ef\u4e0a\u7684\u529b\u3002\u538b\u529b\u7684\u516c\u5f0f\u53ef\u4ee5\u8868\u793a\u4e3a:<\/p>\n<p>$$ P = \\frac{F}{A} $$<\/p>\n<p>\u5176\u4e2d\uff0c<i>P<\/i> \u8868\u793a\u538b\u529b\uff0c<i>F<\/i> \u662f\u4f5c\u7528\u529b\uff0c<i>A<\/i> \u662f\u9762\u79ef\u3002\u6d41\u4f53\u538b\u529b\u5728\u5404\u65b9\u5411\u4e0a\u5747\u5300\u5206\u5e03\uff0c\u8fd9\u662f\u5e15\u65af\u5361\u5b9a\u5f8b\u7684\u57fa\u672c\u89c2\u70b9\u3002<\/p>\n<h2>\u5e15\u65af\u5361\u5b9a\u5f8b<\/h2>\n<p>\u5e15\u65af\u5361\u5b9a\u5f8b\u8868\u660e\uff0c\u5728\u9759\u6b62\u6d41\u4f53\u4e2d\uff0c\u4efb\u610f\u4e00\u70b9\u7684\u538b\u5f3a\u5728\u5404\u4e2a\u65b9\u5411\u4e0a\u76f8\u7b49\u3002\u5373:<\/p>\n<p>$$ P_1 = P_2 = P_3 = \\ldots = P_n $$<\/p>\n<p>\u8fd9\u4e00\u539f\u7406\u5728\u6db2\u538b\u7cfb\u7edf\u4e2d\u5f97\u5230\u4e86\u5e7f\u6cdb\u5e94\u7528\uff0c\u5982\u6db2\u538b\u673a\u548c\u6c7d\u8f66\u5239\u8f66\u7cfb\u7edf\u3002<\/p>\n<h2>\u6d41\u4f53\u7684\u91cd\u529b<\/h2>\n<p>\u91cd\u529b\u5bf9\u6d41\u4f53\u7684\u5f71\u54cd\u4f53\u73b0\u5728\u6d41\u4f53\u7684\u538b\u5f3a\u968f\u6df1\u5ea6\u589e\u5927\u800c\u589e\u52a0\uff0c\u8fd9\u4e00\u73b0\u8c61\u53ef\u4ee5\u901a\u8fc7\u6d41\u4f53\u9759\u529b\u5b66\u57fa\u672c\u65b9\u7a0b\u6765\u89e3\u91ca\u3002\u5bf9\u4e8e\u4e00\u9759\u6b62\u6d41\u4f53\u67f1\uff0c\u538b\u5f3a\u68af\u5ea6\u4e0e\u5bc6\u5ea6\u3001\u91cd\u529b\u52a0\u901f\u5ea6\u548c\u6df1\u5ea6\u7684\u5173\u7cfb\u4e3a:<\/p>\n<p>$$ \\frac{dP}{dz} = -\\rho g $$<\/p>\n<p>\u5176\u4e2d\uff0c<i>dP<\/i> \u662f\u538b\u5f3a\u7684\u5fae\u5c0f\u53d8\u5316\uff0c<i>dz<\/i> \u662f\u6df1\u5ea6\u7684\u5fae\u5c0f\u53d8\u5316\uff0c<i>\\rho<\/i> \u662f\u6d41\u4f53\u5bc6\u5ea6\uff0c<i>g<\/i> \u662f\u91cd\u529b\u52a0\u901f\u5ea6\u3002<\/p>\n<h2>\u4f2f\u52aa\u5229\u65b9\u7a0b<\/h2>\n<p>\u5c3d\u7ba1\u4f2f\u52aa\u5229\u65b9\u7a0b\u901a\u5e38\u7528\u4e8e\u6d41\u4f53\u52a8\u529b\u5b66\uff0c\u4f46\u5728\u5206\u6790\u7279\u5b9a\u9759\u6d41\u4f53\u95ee\u9898\u65f6\u4e5f\u6709\u5176\u91cd\u8981\u610f\u4e49\u3002\u4f2f\u52aa\u5229\u65b9\u7a0b\u53ef\u4ee5\u8868\u793a\u4e3a:<\/p>\n<p>$$ P + \\frac{1}{2} \\rho v^2 + \\rho gh = \u5e38\u6570 $$<\/p>\n<p>\u5bf9\u4e8e\u9759\u6d41\u4f53\uff0c\u6d41\u901f<sub>(v)<\/sub>\u53ef\u4ee5\u5ffd\u7565\u4e0d\u8ba1\uff0c\u65b9\u7a0b\u7b80\u5316\u4e3a:<\/p>\n<p>$$ P + \\rho gh = \u5e38\u6570 $$<\/p>\n<p>\u8fd9\u610f\u5473\u7740\u5728\u9759\u6d41\u4f53\u4e2d\uff0c\u4e0d\u540c\u9ad8\u5ea6\u4f4d\u7f6e\u7684\u538b\u5f3a\u548c\u91cd\u529b\u52bf\u80fd\u4e4b\u548c\u662f\u6052\u5b9a\u7684\u3002<\/p>\n<h2>\u5e94\u7528\u5b9e\u4f8b<\/h2>\n<p>\u6d41\u4f53\u9759\u529b\u5b66\u5728\u5b9e\u9645\u5de5\u7a0b\u5e94\u7528\u4e2d\u6709\u5e7f\u6cdb\u7684\u5e94\u7528\u3002\u5176\u4e2d\u4e00\u4e2a\u5178\u578b\u4f8b\u5b50\u662f\u6c34\u575d\u8bbe\u8ba1\u3002\u5728\u6c34\u575d\u8bbe\u8ba1\u4e2d\uff0c\u901a\u8fc7\u8ba1\u7b97\u6c34\u4f53\u6df1\u5904\u7684\u538b\u5f3a\uff0c\u53ef\u4ee5\u786e\u4fdd\u6c34\u575d\u7ed3\u6784\u8db3\u591f\u575a\u56fa\uff0c\u4ee5\u627f\u53d7\u6c34\u4f53\u7684\u5de8\u5927\u538b\u529b\u3002<\/p>\n<p>\u53e6\u4e00\u4e2a\u4f8b\u5b50\u662f\u6f5c\u6c34\u3002\u6f5c\u6c34\u8005\u6df1\u5165\u6c34\u4e2d\u65f6\uff0c\u611f\u53d7\u5230\u7684\u538b\u5f3a\u589e\u52a0\uff0c\u8fd9\u5fc5\u987b\u5728\u6f5c\u6c34\u8bbe\u5907\u8bbe\u8ba1\u4e2d\u8003\u8651\uff0c\u4ee5\u4fdd\u8bc1\u6f5c\u6c34\u8005\u7684\u5b89\u5168\u3002<\/p>\n<h2>\u603b\u7ed3<\/h2>\n<p>\u638c\u63e1\u6d41\u4f53\u9759\u529b\u5b66\u7684\u57fa\u672c\u539f\u7406\uff0c\u5bf9\u4e8e\u7406\u89e3\u548c\u89e3\u51b3\u4e0e\u9759\u6b62\u6d41\u4f53\u76f8\u5173\u7684\u5de5\u7a0b\u95ee\u9898\u81f3\u5173\u91cd\u8981\u3002\u901a\u8fc7\u6df1\u5165\u5b66\u4e60\u8fd9\u4e9b\u57fa\u672c\u539f\u7406\uff0c\u6211\u4eec\u53ef\u4ee5\u66f4\u597d\u5730\u5e94\u7528\u6d41\u4f53\u9759\u529b\u5b66\u77e5\u8bc6\uff0c\u89e3\u51b3\u5b9e\u9645\u95ee\u9898\uff0c\u63a8\u52a8\u6280\u672f\u8fdb\u6b65\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6d41\u4f53\u9759\u529b\u5b66\u539f\u7406\u89e3\u6790\uff1a\u6df1\u5165\u4e86\u89e3\u6d41\u4f53\u5728\u9759\u6b62\u72b6\u6001\u4e0b\u7684\u538b\u529b\u5206\u5e03\u3001\u5e73\u8861\u6761\u4ef6\u53ca\u5176\u5e94\u7528\uff0c\u63ed\u793a\u6db2\u4f53\u548c\u6c14\u4f53\u5982\u4f55\u5728\u4e0d\u540c\u73af\u5883\u4e2d\u8868\u73b0\u3002<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[134],"tags":[],"yoast_head":"<!-- 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