{"id":741121,"date":"2024-10-25T23:03:52","date_gmt":"2024-10-25T22:03:52","guid":{"rendered":"https:\/\/www.thermal-engineering.org\/?p=741121"},"modified":"2024-10-25T23:03:52","modified_gmt":"2024-10-25T22:03:52","slug":"%e5%be%ae%e6%b5%81%e4%bd%93%e8%a3%85%e7%bd%ae%e4%b8%ad%e7%9a%84%e7%83%ad%e4%bc%a0%e5%af%bc","status":"publish","type":"post","link":"https:\/\/www.thermal-engineering.org\/zh-hans\/%e5%be%ae%e6%b5%81%e4%bd%93%e8%a3%85%e7%bd%ae%e4%b8%ad%e7%9a%84%e7%83%ad%e4%bc%a0%e5%af%bc\/","title":{"rendered":"\u5fae\u6d41\u4f53\u88c5\u7f6e\u4e2d\u7684\u70ed\u4f20\u5bfc"},"content":{"rendered":"<p class=\"sidekick\">\u5fae\u6d41\u4f53\u88c5\u7f6e\u4e2d\u7684\u70ed\u4f20\u5bfc\uff1a\u4e86\u89e3\u5fae\u5c3a\u5ea6\u4e0b\u70ed\u91cf\u5982\u4f55\u5728\u6d41\u4f53\u4e2d\u4f20\u9012\uff0c\u5206\u6790\u5176\u539f\u7406\u53ca\u5e94\u7528\uff0c\u52a9\u4f60\u638c\u63e1\u5fae\u6d41\u4f53\u6280\u672f\u7684\u57fa\u7840\u77e5\u8bc6\u3002<\/p>\n<p><img src=\"https:\/\/www.thermal-engineering.org\/wp-content\/uploads\/2024\/07\/\u5fae\u6d41\u4f53\u88c5\u7f6e\u4e2d\u7684\u70ed\u4f20\u5bfc.png\" alt=\"\u5fae\u6d41\u4f53\u88c5\u7f6e\u4e2d\u7684\u70ed\u4f20\u5bfc\" style=\"display: block; margin-left: auto; margin-right: auto;\"\/><\/p>\n<h2>\u5fae\u6d41\u4f53\u88c5\u7f6e\u4e2d\u7684\u70ed\u4f20\u5bfc<\/h2>\n<p>\u5fae\u6d41\u4f53\u88c5\u7f6e\u662f\u4e00\u79cd\u5229\u7528\u5fae\u5c3a\u5ea6\u6d41\u4f53\u901a\u9053\u8fdb\u884c\u64cd\u4f5c\u7684\u88c5\u7f6e\uff0c\u5728\u751f\u7269\u533b\u5b66\u3001\u5316\u5b66\u5206\u6790\u548c\u6750\u6599\u79d1\u5b66\u7b49\u9886\u57df\u6709\u7740\u5e7f\u6cdb\u7684\u5e94\u7528\u3002\u5728\u8fd9\u4e9b\u88c5\u7f6e\u4e2d\uff0c\u70ed\u4f20\u5bfc\u662f\u4e00\u4e2a\u91cd\u8981\u7684\u8bfe\u9898\uff0c\u56e0\u4e3a\u70ed\u91cf\u7684\u4f20\u9012\u4e0d\u4ec5\u4f1a\u5f71\u54cd\u6d41\u4f53\u7684\u6e29\u5ea6\uff0c\u8fd8\u4f1a\u5f71\u54cd\u53cd\u5e94\u901f\u5ea6\u548c\u6d41\u4f53\u7279\u6027\u7684\u53d8\u5316\u3002<\/p>\n<h2>\u70ed\u4f20\u5bfc\u7684\u57fa\u672c\u6982\u5ff5<\/h2>\n<p>\u70ed\u4f20\u5bfc\u662f\u6307\u70ed\u91cf\u4ece\u9ad8\u6e29\u533a\u57df\u4f20\u9012\u5230\u4f4e\u6e29\u533a\u57df\u7684\u8fc7\u7a0b\u3002\u5728\u5fae\u6d41\u4f53\u88c5\u7f6e\u4e2d\uff0c\u70ed\u4f20\u5bfc\u4e3b\u8981\u53d7\u5230\u6750\u6599\u7684\u70ed\u5bfc\u7387\u3001\u6e29\u5ea6\u5dee\u4ee5\u53ca\u51e0\u4f55\u5f62\u72b6\u7684\u5f71\u54cd\u3002\u6839\u636e\u5085\u91cc\u53f6\u70ed\u4f20\u5bfc\u5b9a\u5f8b\uff0c\u70ed\u901a\u91cf <i>q<\/i> \u53ef\u4ee5\u8868\u793a\u4e3a\uff1a<\/p>\n<p><i>q = -k \\cdot \\frac{dT}{dx}<\/i><\/p>\n<p>\u5176\u4e2d\uff1a<\/p>\n<ul>\n<li><i>q<\/i> \u662f\u70ed\u901a\u91cf<\/li>\n<li><i>k<\/i> \u662f\u6750\u6599\u7684\u70ed\u5bfc\u7387<\/li>\n<li><i>\\frac{dT}{dx}<\/i> \u662f\u6e29\u5ea6\u68af\u5ea6<\/li>\n<\/ul>\n<h2>\u5fae\u6d41\u4f53\u88c5\u7f6e\u4e2d\u7684\u6750\u6599\u9009\u62e9<\/h2>\n<p>\u5728\u5fae\u6d41\u4f53\u88c5\u7f6e\u4e2d\uff0c\u6750\u6599\u7684\u70ed\u5bfc\u7387\u76f4\u63a5\u5f71\u54cd\u70ed\u4f20\u5bfc\u6548\u7387\u3002\u5e38\u7528\u7684\u6750\u6599\u5305\u62ec\u7845\u3001\u73bb\u7483\u548c\u805a\u5408\u7269\uff0c\u5b83\u4eec\u7684\u70ed\u5bfc\u7387\u5404\u4e0d\u76f8\u540c\u3002\u4f8b\u5982\uff0c\u7845\u7684\u70ed\u5bfc\u7387\u8f83\u9ad8\uff0c\u56e0\u6b64\u4f20\u70ed\u6548\u7387\u66f4\u9ad8\uff1b\u800c\u805a\u5408\u7269\u7684\u70ed\u5bfc\u7387\u8f83\u4f4e\uff0c\u4f46\u5177\u6709\u8f83\u597d\u7684\u751f\u7269\u76f8\u5bb9\u6027\u548c\u52a0\u5de5\u6027\u80fd\u3002<\/p>\n<h2>\u70ed\u7ba1\u7406\u7b56\u7565<\/h2>\n<p>\u4e3a\u4e86\u5728\u5fae\u6d41\u4f53\u88c5\u7f6e\u4e2d\u6709\u6548\u63a7\u5236\u70ed\u4f20\u5bfc\uff0c\u5e38\u7528\u7684\u70ed\u7ba1\u7406\u7b56\u7565\u5305\u62ec\uff1a<\/p>\n<ol>\n<li><strong>\u4f18\u5316\u51e0\u4f55\u8bbe\u8ba1<\/strong>\uff1a\u901a\u8fc7\u6539\u53d8\u5fae\u901a\u9053\u7684\u5f62\u72b6\u548c\u5c3a\u5bf8\uff0c\u53ef\u4ee5\u6709\u6548\u8c03\u8282\u70ed\u91cf\u7684\u4f20\u9012\u3002<\/li>\n<li><strong>\u4f7f\u7528\u70ed\u7edd\u7f18\u6750\u6599<\/strong>\uff1a\u5728\u9700\u8981\u6e29\u5ea6\u9694\u79bb\u7684\u533a\u57df\u4f7f\u7528\u70ed\u7edd\u7f18\u6750\u6599\uff0c\u51cf\u5c11\u4e0d\u5fc5\u8981\u7684\u70ed\u4f20\u5bfc\u3002<\/li>\n<li><strong>\u5916\u90e8\u6e29\u63a7\u88c5\u7f6e<\/strong>: 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