{"id":753215,"date":"2024-11-06T03:02:11","date_gmt":"2024-11-06T02:02:11","guid":{"rendered":"https:\/\/www.thermal-engineering.org\/?p=753215"},"modified":"2024-11-06T03:02:11","modified_gmt":"2024-11-06T02:02:11","slug":"%e7%83%ad%e9%80%9a%e9%87%8f%e5%9c%a8%e7%83%ad%e5%88%86%e6%9e%90%e4%b8%ad%e7%9a%84%e7%90%86%e8%a7%a3","status":"publish","type":"post","link":"https:\/\/www.thermal-engineering.org\/zh-hans\/%e7%83%ad%e9%80%9a%e9%87%8f%e5%9c%a8%e7%83%ad%e5%88%86%e6%9e%90%e4%b8%ad%e7%9a%84%e7%90%86%e8%a7%a3\/","title":{"rendered":"\u70ed\u901a\u91cf\u5728\u70ed\u5206\u6790\u4e2d\u7684\u7406\u89e3"},"content":{"rendered":"<p class=\"sidekick\">\u70ed\u901a\u91cf\u5728\u70ed\u5206\u6790\u4e2d\u7684\u7406\u89e3\uff1a\u6df1\u5165\u63a2\u8ba8\u70ed\u901a\u91cf\u5728\u5404\u79cd\u70ed\u7cfb\u7edf\u4e2d\u7684\u4f5c\u7528\u53ca\u5176\u5728\u5de5\u7a0b\u548c\u65e5\u5e38\u751f\u6d3b\u4e2d\u7684\u5b9e\u9645\u5e94\u7528\uff0c\u5e2e\u52a9\u8bfb\u8005\u638c\u63e1\u57fa\u672c\u6982\u5ff5\u3002<\/p>\n<p><img src=\"https:\/\/www.thermal-engineering.org\/wp-content\/uploads\/2024\/07\/\u70ed\u901a\u91cf\u5728\u70ed\u5206\u6790\u4e2d\u7684\u7406\u89e3.png\" alt=\"\u70ed\u901a\u91cf\u5728\u70ed\u5206\u6790\u4e2d\u7684\u7406\u89e3\" style=\"display: block; margin-left: auto; margin-right: auto;\"\/><\/p>\n<h2>\u70ed\u901a\u91cf\u5728\u70ed\u5206\u6790\u4e2d\u7684\u7406\u89e3<\/h2>\n<p>\u70ed\u901a\u91cf\uff08Heat Flux\uff09\u662f\u6307\u5355\u4f4d\u65f6\u95f4\u5185\u901a\u8fc7\u5355\u4f4d\u9762\u79ef\u7684\u70ed\u91cf\u4f20\u9012\u91cf\u3002\u5b83\u662f\u70ed\u5206\u6790\u4e2d\u4e00\u4e2a\u91cd\u8981\u7684\u6982\u5ff5\uff0c\u5e7f\u6cdb\u5e94\u7528\u4e8e\u70ed\u7ba1\u7406\u3001\u6750\u6599\u7814\u7a76\u4ee5\u53ca\u5de5\u7a0b\u5b9e\u8df5\u4e2d\u3002\u70ed\u901a\u91cf\u53ef\u4ee5\u5e2e\u52a9\u6211\u4eec\u7406\u89e3\u6750\u6599\u548c\u7cfb\u7edf\u7684\u70ed\u884c\u4e3a\uff0c\u4ece\u800c\u5e2e\u52a9\u8fdb\u884c\u8bbe\u8ba1\u548c\u4f18\u5316\u3002<\/p>\n<h2>\u70ed\u901a\u91cf\u7684\u8ba1\u7b97\u53ca\u5355\u4f4d<\/h2>\n<p>\u70ed\u901a\u91cf\u901a\u5e38\u8868\u793a\u4e3a <i>q<\/i>\uff0c\u5176\u5355\u4f4d\u662f\u74e6\u7279\u6bcf\u5e73\u65b9\u7c73\uff08W\/m<sup>2<\/sup>\uff09\u3002\u53ef\u4ee5\u901a\u8fc7\u4e0b\u9762\u7684\u516c\u5f0f\u8ba1\u7b97\uff1a<\/p>\n<ul>\n<li><i>q = \\frac{Q}{A}<\/i><\/li>\n<\/ul>\n<p>\u5176\u4e2d\uff0c<i>Q<\/i> \u8868\u793a\u70ed\u91cf\uff0c\u5355\u4f4d\u662f\u7126\u8033\uff08J\uff09\uff1b<i>A<\/i> \u8868\u793a\u9762\u79ef\uff0c\u5355\u4f4d\u662f\u5e73\u65b9\u7c73\uff08m<sup>2<\/sup>\uff09\u3002<\/p>\n<h2>\u70ed\u901a\u91cf\u5728\u70ed\u4f20\u5bfc\u4e2d\u7684\u4f5c\u7528<\/h2>\n<p>\u5728\u70ed\u4f20\u5bfc\u8fc7\u7a0b\u4e2d\uff0c\u70ed\u901a\u91cf\u901a\u8fc7\u4ee5\u4e0b\u516c\u5f0f\u8ba1\u7b97\uff1a<\/p>\n<ul>\n<li><i>q = -k \\frac{dT}{dx}<\/i><\/li>\n<\/ul>\n<p>\u8fd9\u91cc\uff0c<i>k<\/i> \u662f\u6750\u6599\u7684\u70ed\u5bfc\u7387\uff0c\u5355\u4f4d\u4e3a\u74e6\u7279\u6bcf\u7c73\u6bcf\u5f00\u5c14\u6587\uff08W\/m\u00b7K\uff09\uff1b<i>\\frac{dT}{dx}<\/i> \u662f\u6e29\u5ea6\u68af\u5ea6\uff0c\u5373\u6e29\u5ea6\u53d8\u5316\u91cf\u4e0e\u8ddd\u79bb\u53d8\u5316\u91cf\u7684\u6bd4\u503c\u3002\u70ed\u901a\u91cf <i>q<\/i> \u5728\u8fd9\u91cc\u8868\u793a\u70ed\u80fd\u901a\u8fc7\u6750\u6599\u4f20\u9012\u7684\u6548\u7387\u3002<\/p>\n<h2>\u70ed\u901a\u91cf\u5728\u4f20\u70ed\u5b66\u91cc\u7684\u5e94\u7528<\/h2>\n<ol>\n<li>\u70ed\u7ba1\u7406\uff1a\u5728\u7535\u5b50\u5668\u4ef6\u4e2d\uff0c\u6709\u6548\u7684\u70ed\u7ba1\u7406\u662f\u4fdd\u8bc1\u5668\u4ef6\u6027\u80fd\u548c\u5bff\u547d\u7684\u5173\u952e\u3002\u901a\u8fc7\u8ba1\u7b97\u548c\u63a7\u5236\u70ed\u901a\u91cf\uff0c\u53ef\u4ee5\u8bbe\u8ba1\u6563\u70ed\u5668\u548c\u51b7\u5374\u7cfb\u7edf\u3002<\/li>\n<li>\u6750\u6599\u7814\u7a76\uff1a\u901a\u8fc7\u5b9e\u9a8c\u6d4b\u91cf\u6750\u6599\u7684\u70ed\u901a\u91cf\uff0c\u53ef\u4ee5\u4e86\u89e3\u6750\u6599\u7684\u70ed\u7269\u7406\u6027\u8d28\uff0c\u5982\u70ed\u5bfc\u7387\u3001\u6bd4\u70ed\u5bb9\u7b49\u3002<\/li>\n<li>\u80fd\u6e90\u5229\u7528\uff1a\u5728\u70ed\u7535\u8f6c\u6362\u3001\u592a\u9633\u80fd\u96c6\u70ed\u7b49\u6280\u672f\u4e2d\uff0c\u70ed\u901a\u91cf\u7684\u5206\u6790\u5bf9\u63d0\u9ad8\u7cfb\u7edf\u6548\u7387\u5177\u6709\u91cd\u8981\u610f\u4e49\u3002<\/li>\n<\/ol>\n<h2>\u7ed3\u8bba<\/h2>\n<p>\u7406\u89e3\u70ed\u901a\u91cf\u53ca\u5176\u5728\u70ed\u5206\u6790\u4e2d\u7684\u5e94\u7528\uff0c\u5bf9\u63a8\u52a8\u70ed\u5de5\u7a0b\u7684\u53d1\u5c55\u5177\u6709\u91cd\u8981\u610f\u4e49\u3002\u901a\u8fc7\u57fa\u672c\u516c\u5f0f\u548c\u539f\u7406\uff0c\u6211\u4eec\u53ef\u4ee5\u66f4\u597d\u5730\u7406\u89e3\u548c\u5e94\u7528\u8fd9\u4e00\u6982\u5ff5\uff0c\u4ece\u800c\u4f18\u5316\u5404\u79cd\u70ed\u7cfb\u7edf\uff0c\u63d0\u9ad8\u80fd\u6548\u548c\u6027\u80fd\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u70ed\u901a\u91cf\u5728\u70ed\u5206\u6790\u4e2d\u7684\u7406\u89e3\uff1a\u6df1\u5165\u63a2\u8ba8\u70ed\u901a\u91cf\u5728\u5404\u79cd\u70ed\u7cfb\u7edf\u4e2d\u7684\u4f5c\u7528\u53ca\u5176\u5728\u5de5\u7a0b\u548c\u65e5\u5e38\u751f\u6d3b\u4e2d\u7684\u5b9e\u9645\u5e94\u7528\uff0c\u5e2e\u52a9\u8bfb\u8005\u638c\u63e1\u57fa\u672c\u6982\u5ff5\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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