{"id":739338,"date":"2024-11-28T12:12:25","date_gmt":"2024-11-28T11:12:25","guid":{"rendered":"https:\/\/www.thermal-engineering.org\/?p=739338"},"modified":"2024-11-28T12:12:25","modified_gmt":"2024-11-28T11:12:25","slug":"%e6%a0%b8%e5%8f%8d%e5%ba%94%e5%a0%86%e4%b8%ad%e7%9a%84%e7%83%ad%e6%b6%b2%e5%8a%9b%e5%ad%a6","status":"publish","type":"post","link":"https:\/\/www.thermal-engineering.org\/zh-hans\/%e6%a0%b8%e5%8f%8d%e5%ba%94%e5%a0%86%e4%b8%ad%e7%9a%84%e7%83%ad%e6%b6%b2%e5%8a%9b%e5%ad%a6\/","title":{"rendered":"\u6838\u53cd\u5e94\u5806\u4e2d\u7684\u70ed\u6db2\u529b\u5b66"},"content":{"rendered":"<p class=\"sidekick\">\u6838\u53cd\u5e94\u5806\u4e2d\u7684\u70ed\u6db2\u529b\u5b66\uff1a\u5206\u6790\u6838\u53cd\u5e94\u5806\u5185\u90e8\u70ed\u529b\u4e0e\u6d41\u4f53\u52a8\u529b\u7684\u76f8\u4e92\u4f5c\u7528\uff0c\u89e3\u91ca\u51b7\u5374\u7cfb\u7edf\u548c\u80fd\u91cf\u8f6c\u5316\u8fc7\u7a0b\u4e2d\u7684\u5173\u952e\u539f\u7406\u3002<\/p>\n<p><img src=\"https:\/\/www.thermal-engineering.org\/wp-content\/uploads\/2024\/07\/\u6838\u53cd\u5e94\u5806\u4e2d\u7684\u70ed\u6db2\u529b\u5b66.png\" alt=\"\u6838\u53cd\u5e94\u5806\u4e2d\u7684\u70ed\u6db2\u529b\u5b66\" style=\"display: block; margin-left: auto; margin-right: auto;\"\/><\/p>\n<h2>\u6838\u53cd\u5e94\u5806\u4e2d\u7684\u70ed\u6db2\u529b\u5b66<\/h2>\n<p>\u6838\u53cd\u5e94\u5806\u662f\u4e00\u79cd\u5229\u7528\u6838\u88c2\u53d8\u53cd\u5e94\u91ca\u653e\u80fd\u91cf\u5e76\u5c06\u5176\u8f6c\u5316\u4e3a\u7535\u80fd\u6216\u5176\u4ed6\u5f62\u5f0f\u80fd\u91cf\u7684\u88c5\u7f6e\u3002\u5728\u6838\u53cd\u5e94\u5806\u7684\u8fd0\u884c\u8fc7\u7a0b\u4e2d\uff0c\u70ed\u6db2\u529b\u5b66\uff08\u6216\u70ed\u5de5\u6c34\u529b\u5b66\uff09\u8d77\u7740\u81f3\u5173\u91cd\u8981\u7684\u4f5c\u7528\u3002\u70ed\u6db2\u529b\u5b66\u7814\u7a76\u7684\u662f\u6db2\u4f53\u548c\u6c14\u4f53\u5728\u9ad8\u6e29\u9ad8\u538b\u6761\u4ef6\u4e0b\u7684\u884c\u4e3a\uff0c\u5305\u62ec\u70ed\u4f20\u5bfc\u3001\u5bf9\u6d41\u548c\u76f8\u53d8\u7b49\u73b0\u8c61\uff0c\u8fd9\u4e9b\u90fd\u662f\u6838\u53cd\u5e94\u5806\u5b89\u5168\u548c\u9ad8\u6548\u8fd0\u884c\u7684\u5173\u952e\u3002<\/p>\n<h2>\u70ed\u6db2\u529b\u5b66\u7684\u57fa\u672c\u539f\u7406<\/h2>\n<p>\u70ed\u6db2\u529b\u5b66\u4e3b\u8981\u6d89\u53ca\u4ee5\u4e0b\u51e0\u4e2a\u57fa\u672c\u539f\u7406\uff1a<\/p>\n<p><u1><\/p>\n<li><strong>\u70ed\u4f20\u5bfc<\/strong>\uff1a\u70ed\u4f20\u5bfc\u662f\u901a\u8fc7\u7269\u8d28\u7684\u5206\u5b50\u632f\u52a8\u548c\u81ea\u7531\u7535\u5b50\u7684\u79fb\u52a8\u6765\u4f20\u9012\u70ed\u91cf\u7684\u8fc7\u7a0b\u3002\u516c\u5f0f\u4e3a <em>q = -k * \\frac{dT}{dx}<\/em>\uff0c\u5176\u4e2d\uff0c<em>q<\/em> \u4e3a\u70ed\u901a\u91cf\uff0c<em>k<\/em> \u4e3a\u5bfc\u70ed\u7cfb\u6570\uff0c<em> \\frac{dT}{dx} <\/em>\u4e3a\u6e29\u5ea6\u68af\u5ea6\u3002<\/li>\n<li><strong>\u70ed\u5bf9\u6d41<\/strong>\uff1a\u70ed\u5bf9\u6d41\u662f\u5728\u6d41\u4f53\u4e2d\u7531\u4e8e\u6e29\u5ea6\u5dee\u5f02\u5f15\u8d77\u7684\u6d41\u4f53\u8fd0\u52a8\u800c\u4f20\u9012\u70ed\u91cf\u7684\u8fc7\u7a0b\u3002\u5bf9\u4e8e\u5f3a\u5236\u5bf9\u6d41\uff0c\u5e38\u7528\u7684\u7ebd\u585e\u5c14\u6570\uff08Nu\uff09\u4e0e\u96f7\u8bfa\u6570\uff08Re\uff09\u548c\u666e\u6717\u7279\u6570\uff08Pr\uff09\u4e4b\u95f4\u7684\u5173\u7cfb\u4e3a <em>Nu = C * Re<sup>m<\/sup> * Pr<sup>n<\/sup><\/em>\uff0c\u5176\u4e2dC\uff0cm\uff0cn\u4e3a\u5e38\u6570\u3002<\/li>\n<li><strong>\u76f8\u53d8<\/strong>\uff1a\u76f8\u53d8\u662f\u6307\u7269\u8d28\u5728\u7279\u5b9a\u6e29\u5ea6\u548c\u538b\u529b\u4e0b\u4ece\u4e00\u79cd\u7269\u6001\u8f6c\u53d8\u4e3a\u53e6\u4e00\u79cd\u7269\u6001\u7684\u8fc7\u7a0b\uff0c\u4f8b\u5982\u6db2\u4f53\u53d8\u6210\u6c14\u4f53\uff08\u6cb8\u817e\uff09\u6216\u6c14\u4f53\u53d8\u6210\u6db2\u4f53\uff08\u51dd\u7ed3\uff09\u3002<\/li>\n<p><\/u1><\/p>\n<h2>\u6838\u53cd\u5e94\u5806\u4e2d\u7684\u5e94\u7528<\/h2>\n<p>\u6838\u53cd\u5e94\u5806\u4e2d\u7684\u70ed\u6db2\u529b\u5b66\u77e5\u8bc6\u4e3b\u8981\u5e94\u7528\u4e8e\u4ee5\u4e0b\u51e0\u4e2a\u65b9\u9762\uff1a<\/p>\n<p><o1><\/p>\n<li><strong>\u51b7\u5374\u7cfb\u7edf\u8bbe\u8ba1<\/strong>\uff1a\u6838\u53cd\u5e94\u5806\u7684\u51b7\u5374\u7cfb\u7edf\u7528\u4e8e\u4f20\u9012\u53cd\u5e94\u5806\u82af\u4ea7\u751f\u7684\u70ed\u91cf\u3002\u9ad8\u6548\u7684\u51b7\u5374\u7cfb\u7edf\u8bbe\u8ba1\u9700\u8981\u8003\u8651\u4f20\u70ed\u548c\u6d41\u4f53\u6d41\u52a8\u7684\u7279\u6027\uff0c\u4ee5\u786e\u4fdd\u53cd\u5e94\u5806\u5728\u5b89\u5168\u6e29\u5ea6\u8303\u56f4\u5185\u8fd0\u884c\u3002<\/li>\n<li><strong>\u70ed\u4ea4\u6362\u5668<\/strong>\uff1a\u70ed\u4ea4\u6362\u5668\u7528\u4e8e\u5c06\u53cd\u5e94\u5806\u4e2d\u7684\u70ed\u91cf\u8f6c\u79fb\u5230\u53d1\u7535\u673a\u7684\u5de5\u4f5c\u6d41\u4f53\uff08\u5982\u6c34\u84b8\u6c14\uff09\u4e2d\u3002\u8bbe\u8ba1\u70ed\u4ea4\u6362\u5668\u65f6\uff0c\u9700\u8981\u7efc\u5408\u8003\u8651\u70ed\u4f20\u5bfc\u548c\u5bf9\u6d41\u7684\u56e0\u7d20\uff0c\u4ee5\u6700\u5927\u5316\u70ed\u6548\u7387\u3002<\/li>\n<li><strong>\u5806\u82af\u70ed\u7ba1\u7406<\/strong>\uff1a\u6838\u53cd\u5e94\u5806\u8fd0\u884c\u8fc7\u7a0b\u4e2d\uff0c\u5806\u82af\u5185\u7684\u6e29\u5ea6\u5206\u5e03\u5bf9\u53cd\u5e94\u5806\u7684\u5b89\u5168\u548c\u6548\u7387\u6709\u91cd\u8981\u5f71\u54cd\u3002\u901a\u8fc7\u7cbe\u786e\u8ba1\u7b97\u548c\u63a7\u5236\u5806\u82af\u5185\u7684\u4f20\u70ed\u548c\u6d41\u52a8\u8fc7\u7a0b\uff0c\u53ef\u4ee5\u4f18\u5316\u53cd\u5e94\u5806\u7684\u8fd0\u884c\u53c2\u6570\u3002<\/li>\n<p><\/o1><\/p>\n<h2>\u5b89\u5168\u6027\u8003\u91cf<\/h2>\n<p>\u5728\u6838\u53cd\u5e94\u5806\u4e2d\uff0c\u70ed\u6db2\u529b\u5b66\u7684\u53e6\u4e00\u4e2a\u91cd\u8981\u5e94\u7528\u662f\u786e\u4fdd\u5b89\u5168\u6027\u3002\u4f8b\u5982\uff0c\u5728\u7d27\u6025\u505c\u5806\u65f6\u9700\u8981\u8fc5\u901f\u51b7\u5374\u53cd\u5e94\u5806\u82af\uff0c\u4ee5\u9632\u6b62\u8fc7\u70ed\u5f15\u53d1\u7684\u4e8b\u6545\u3002\u826f\u597d\u7684\u70ed\u6db2\u529b\u5b66\u8bbe\u8ba1\u53ef\u4ee5\u4f7f\u51b7\u5374\u5242\u5728\u9ad8\u6e29\u9ad8\u538b\u6761\u4ef6\u4e0b\u8fc5\u901f\u6709\u6548\u5730\u4f20\u9012\u70ed\u91cf\u3002<\/p>\n<h2>\u7ed3\u8bba<\/h2>\n<p>\u6838\u53cd\u5e94\u5806\u4e2d\u7684\u70ed\u6db2\u529b\u5b66\u662f\u4e00\u4e2a\u590d\u6742\u800c\u5173\u952e\u7684\u9886\u57df\uff0c\u6d89\u53ca\u5230\u70ed\u4f20\u5bfc\u3001\u70ed\u5bf9\u6d41\u548c\u76f8\u53d8\u7b49\u591a\u4e2a\u57fa\u672c\u539f\u7406\u3002\u901a\u8fc7\u79d1\u5b66\u5408\u7406\u7684\u8bbe\u8ba1\u548c\u8fd0\u7528\u70ed\u6db2\u529b\u5b66\u77e5\u8bc6\uff0c\u53ef\u4ee5\u63d0\u9ad8\u6838\u53cd\u5e94\u5806\u7684\u8fd0\u884c\u6548\u7387\u548c\u5b89\u5168\u6027\uff0c\u786e\u4fdd\u5176\u7a33\u5b9a\u548c\u53ef\u9760\u5730\u4e3a\u793e\u4f1a\u63d0\u4f9b\u7535\u80fd\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6838\u53cd\u5e94\u5806\u4e2d\u7684\u70ed\u6db2\u529b\u5b66\uff1a\u5206\u6790\u6838\u53cd\u5e94\u5806\u5185\u90e8\u70ed\u529b\u4e0e\u6d41\u4f53\u52a8\u529b\u7684\u76f8\u4e92\u4f5c\u7528\uff0c\u89e3\u91ca\u51b7\u5374\u7cfb\u7edf\u548c\u80fd\u91cf\u8f6c\u5316\u8fc7\u7a0b\u4e2d\u7684\u5173\u952e\u539f\u7406\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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