{"id":751854,"date":"2024-11-01T22:00:33","date_gmt":"2024-11-01T21:00:33","guid":{"rendered":"https:\/\/www.thermal-engineering.org\/?p=751854"},"modified":"2024-11-01T22:00:33","modified_gmt":"2024-11-01T21:00:33","slug":"%e8%a7%a3%e6%9e%90%e7%83%ad%e7%b3%bb%e7%bb%9f%e4%b8%ad%e7%9a%84%e4%bc%a0%e7%83%ad%e5%8e%9f%e7%90%86","status":"publish","type":"post","link":"https:\/\/www.thermal-engineering.org\/zh-hans\/%e8%a7%a3%e6%9e%90%e7%83%ad%e7%b3%bb%e7%bb%9f%e4%b8%ad%e7%9a%84%e4%bc%a0%e7%83%ad%e5%8e%9f%e7%90%86\/","title":{"rendered":"\u89e3\u6790\u70ed\u7cfb\u7edf\u4e2d\u7684\u4f20\u70ed\u539f\u7406"},"content":{"rendered":"<p class=\"sidekick\">\u89e3\u6790\u70ed\u7cfb\u7edf\u4e2d\u7684\u4f20\u70ed\u539f\u7406\uff0c\u4e86\u89e3\u70ed\u4f20\u5bfc\u3001\u5bf9\u6d41\u548c\u8f90\u5c04\u4e09\u79cd\u4f20\u70ed\u65b9\u5f0f\u5728\u4e0d\u540c\u6e29\u5ea6\u6761\u4ef6\u4e0b\u7684\u5e94\u7528\uff0c\u52a9\u529b\u4f18\u5316\u70ed\u80fd\u7ba1\u7406\u4e0e\u8282\u80fd\u8bbe\u8ba1\u3002<\/p>\n<p><img src=\"https:\/\/www.thermal-engineering.org\/wp-content\/uploads\/2024\/07\/\u89e3\u6790\u70ed\u7cfb\u7edf\u4e2d\u7684\u4f20\u70ed\u539f\u7406.png\" alt=\"\u89e3\u6790\u70ed\u7cfb\u7edf\u4e2d\u7684\u4f20\u70ed\u539f\u7406\" style=\"display: block; margin-left: auto; margin-right: auto;\"\/><\/p>\n<h2>\u89e3\u6790\u70ed\u7cfb\u7edf\u4e2d\u7684\u4f20\u70ed\u539f\u7406<\/h2>\n<p>\u70ed\u4f20\u9012\u662f\u70ed\u7cfb\u7edf\u4e2d\u4e00\u4e2a\u5173\u952e\u7684\u8fc7\u7a0b\uff0c\u5728\u8bb8\u591a\u5de5\u7a0b\u5e94\u7528\u4e2d\u90fd\u6709\u91cd\u8981\u4f5c\u7528\u3002\u4e86\u89e3\u70ed\u4f20\u9012\u7684\u57fa\u672c\u539f\u7406\u5bf9\u8bbe\u8ba1\u9ad8\u6548\u7684\u70ed\u7cfb\u7edf\u81f3\u5173\u91cd\u8981\u3002\u672c\u6587\u5c06\u4ecb\u7ecd\u70ed\u4f20\u9012\u7684\u4e09\u79cd\u4e3b\u8981\u5f62\u5f0f\uff1a\u4f20\u5bfc\u3001\u5bf9\u6d41\u548c\u8f90\u5c04\u3002<\/p>\n<h2>\u4f20\u5bfc<\/h2>\n<p>\u4f20\u5bfc\u662f\u70ed\u901a\u8fc7\u7269\u4f53\u5185\u90e8\u6216\u7269\u4f53\u4e4b\u95f4\u76f4\u63a5\u63a5\u89e6\u4f20\u9012\u7684\u8fc7\u7a0b\u3002\u901a\u5e38\u5728\u56fa\u4f53\u4e2d\u8868\u73b0\u6700\u4e3a\u663e\u8457\u3002\u70ed\u4f20\u5bfc\u7684\u901f\u7387\u53ef\u4ee5\u7528\u5085\u91cc\u53f6\u5b9a\u5f8b\u8868\u793a\uff0c\u5176\u516c\u5f0f\u4e3a\uff1a<\/p>\n<p>q = -k * A * \\frac{\\mathrm{d}T}{\\mathrm{d}x}<\/p>\n<p>\u5176\u4e2d\uff0c<em>q<\/em> \u8868\u793a\u70ed\u6d41\u91cf\uff0c<em>k<\/em> \u662f\u6750\u6599\u7684\u70ed\u5bfc\u7387\uff0c<em>A<\/em> \u662f\u4f20\u70ed\u9762\u79ef\uff0c\\(\\frac{\\mathrm{d}T}{\\mathrm{d}x}\\) \u662f\u6e29\u5ea6\u68af\u5ea6\u3002<\/p>\n<h2>\u5bf9\u6d41<\/h2>\n<p>\u5bf9\u6d41\u662f\u70ed\u901a\u8fc7\u6d41\u4f53\uff08\u5982\u7a7a\u6c14\u6216\u6c34\uff09\u7684\u8fd0\u52a8\u4f20\u9012\u7684\u8fc7\u7a0b\u3002\u5bf9\u6d41\u53ef\u4ee5\u5206\u4e3a\u81ea\u7136\u5bf9\u6d41\u548c\u5f3a\u5236\u5bf9\u6d41\u3002\u81ea\u7136\u5bf9\u6d41\u662f\u7531\u4e8e\u5bc6\u5ea6\u5dee\u5f02\u5f15\u8d77\u7684\uff0c\u800c\u5f3a\u5236\u5bf9\u6d41\u5219\u662f\u7531\u5916\u90e8\u529b\u5982\u98ce\u6247\u6216\u6cf5\u5f15\u8d77\u7684\u3002\u5bf9\u6d41\u6362\u70ed\u7684\u901f\u7387\u53ef\u4ee5\u7528\u725b\u987f\u51b7\u5374\u5b9a\u5f8b\u8868\u793a\uff0c\u5176\u516c\u5f0f\u4e3a\uff1a<\/p>\n<p>q = h * A * (T_s &#8211; T_\\infty )<\/p>\n<p>\u5176\u4e2d\uff0c<em>q<\/em> \u662f\u70ed\u6d41\u91cf\uff0c<em>h<\/em> \u4e3a\u5bf9\u6d41\u6362\u70ed\u7cfb\u6570\uff0c<em>A<\/em> \u662f\u4f20\u70ed\u9762\u79ef\uff0c<em>T_s<\/em> \u662f\u7269\u4f53\u8868\u9762\u6e29\u5ea6\uff0c<em>T_\\infty<\/em> \u662f\u6d41\u4f53\u8fdc\u5904\u7684\u6e29\u5ea6\u3002<\/p>\n<h2>\u8f90\u5c04<\/h2>\n<p>\u8f90\u5c04\u662f\u901a\u8fc7\u7535\u78c1\u6ce2\u4f20\u9012\u70ed\u91cf\u7684\u8fc7\u7a0b\uff0c\u4e0d\u9700\u8981\u4ecb\u8d28\u5b58\u5728\u3002\u6240\u6709\u7269\u4f53\u90fd\u4ee5\u70ed\u8f90\u5c04\u7684\u5f62\u5f0f\u53d1\u5c04\u80fd\u91cf\uff0c\u8f90\u5c04\u4f20\u70ed\u7684\u901f\u7387\u53ef\u4ee5\u7528\u65af\u8482\u82ac-\u73bb\u5c14\u5179\u66fc\u5b9a\u5f8b\u8868\u793a\uff0c\u5176\u516c\u5f0f\u4e3a\uff1a<\/p>\n<p>q = \\epsilon * \\sigma * A * (T^4 &#8211; T_s^4)<\/p>\n<p>\u5176\u4e2d\uff0c<em>q<\/em> \u662f\u70ed\u6d41\u91cf\uff0c<em>\u03b5<\/em> \u662f\u7269\u4f53\u7684\u53d1\u5c04\u7387\uff0c<em>\u03c3<\/em> \u662f\u65af\u8482\u82ac-\u73bb\u5c14\u5179\u66fc\u5e38\u6570\uff0c<em>A<\/em> \u662f\u4f20\u70ed\u9762\u79ef\uff0c<em>T<\/em> \u548c <em>T_s<\/em> \u5206\u522b\u662f\u7269\u4f53\u548c\u5468\u56f4\u73af\u5883\u7684\u7edd\u5bf9\u6e29\u5ea6\u3002<\/p>\n<h2>\u603b\u7ed3<\/h2>\n<p>\u70ed\u4f20\u9012\u7684\u4e09\u79cd\u4e3b\u8981\u5f62\u5f0f\u2014\u2014\u4f20\u5bfc\u3001\u5bf9\u6d41\u548c\u8f90\u5c04\u2014\u2014\u5728\u70ed\u7cfb\u7edf\u4e2d\u8d77\u7740\u91cd\u8981\u4f5c\u7528\u3002\u7406\u89e3\u8fd9\u4e9b\u57fa\u672c\u539f\u7406\u53ef\u4ee5\u5e2e\u52a9\u6211\u4eec\u8bbe\u8ba1\u548c\u4f18\u5316\u5404\u79cd\u5de5\u7a0b\u7cfb\u7edf\uff0c\u4ece\u5efa\u7b51\u4f9b\u6696\u5230\u5de5\u4e1a\u52a0\u5de5\u7cfb\u7edf\u3002\u65e0\u8bba\u662f\u901a\u8fc7\u6539\u8fdb\u6750\u6599\u70ed\u5bfc\u7387\uff0c\u63d0\u9ad8\u5bf9\u6d41\u6548\u7387\uff0c\u8fd8\u662f\u4f18\u5316\u8f90\u5c04\u8868\u9762\u7684\u8bbe\u8ba1\uff0c\u638c\u63e1\u70ed\u4f20\u9012\u539f\u7406\u90fd\u662f\u63d0\u9ad8\u70ed\u7cfb\u7edf\u6027\u80fd\u7684\u5173\u952e\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u89e3\u6790\u70ed\u7cfb\u7edf\u4e2d\u7684\u4f20\u70ed\u539f\u7406\uff0c\u4e86\u89e3\u70ed\u4f20\u5bfc\u3001\u5bf9\u6d41\u548c\u8f90\u5c04\u4e09\u79cd\u4f20\u70ed\u65b9\u5f0f\u5728\u4e0d\u540c\u6e29\u5ea6\u6761\u4ef6\u4e0b\u7684\u5e94\u7528\uff0c\u52a9\u529b\u4f18\u5316\u70ed\u80fd\u7ba1\u7406\u4e0e\u8282\u80fd\u8bbe\u8ba1\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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