{"id":740256,"date":"2024-08-09T19:49:54","date_gmt":"2024-08-09T18:49:54","guid":{"rendered":"https:\/\/www.thermal-engineering.org\/?p=740256"},"modified":"2024-08-09T19:49:54","modified_gmt":"2024-08-09T18:49:54","slug":"%e5%a4%9a%e5%ad%94%e4%bb%8b%e8%b4%a8%e4%b8%ad%e7%9a%84%e7%83%ad%e4%bc%a0%e9%80%92","status":"publish","type":"post","link":"https:\/\/www.thermal-engineering.org\/zh-hans\/%e5%a4%9a%e5%ad%94%e4%bb%8b%e8%b4%a8%e4%b8%ad%e7%9a%84%e7%83%ad%e4%bc%a0%e9%80%92\/","title":{"rendered":"\u591a\u5b54\u4ecb\u8d28\u4e2d\u7684\u70ed\u4f20\u9012"},"content":{"rendered":"<p class=\"sidekick\">\u591a\u5b54\u4ecb\u8d28\u4e2d\u7684\u70ed\u4f20\u9012\uff1a\u89e3\u91ca\u70ed\u91cf\u5982\u4f55\u901a\u8fc7\u591a\u5b54\u6750\u6599\u4f20\u64ad\uff0c\u5206\u6790\u5f71\u54cd\u4f20\u70ed\u6548\u7387\u7684\u56e0\u7d20\uff0c\u5e94\u7528\u4e8e\u80fd\u6e90\u3001\u73af\u5883\u7b49\u9886\u57df\u7684\u5de5\u7a0b\u8bbe\u8ba1\u3002<\/p>\n<p><img src=\"https:\/\/www.thermal-engineering.org\/wp-content\/uploads\/2024\/07\/\u591a\u5b54\u4ecb\u8d28\u4e2d\u7684\u70ed\u4f20\u9012.png\" alt=\"\u591a\u5b54\u4ecb\u8d28\u4e2d\u7684\u70ed\u4f20\u9012\" style=\"display: block; margin-left: auto; margin-right: auto;\"\/><\/p>\n<h2>\u591a\u5b54\u4ecb\u8d28\u4e2d\u7684\u70ed\u4f20\u9012<\/h2>\n<p>\u591a\u5b54\u4ecb\u8d28\u4e2d\u7684\u70ed\u4f20\u9012\u662f\u4e00\u4e2a\u590d\u6742\u4e14\u91cd\u8981\u7684\u7814\u7a76\u9886\u57df\uff0c\u5e7f\u6cdb\u5e94\u7528\u4e8e\u80fd\u6e90\u3001\u73af\u5883\u548c\u5de5\u7a0b\u6280\u672f\u7b49\u9886\u57df\u3002\u591a\u5b54\u4ecb\u8d28\uff08\u5982\u571f\u58e4\u3001\u5ca9\u77f3\u3001\u53d1\u6ce1\u6750\u6599\u548c\u751f\u7269\u7ec4\u7ec7\uff09\u5177\u6709\u72ec\u7279\u7684\u7ed3\u6784\u7279\u6027\uff0c\u4f7f\u5f97\u70ed\u4f20\u9012\u8fc7\u7a0b\u53d8\u5f97\u66f4\u52a0\u590d\u6742\u3002\u672c\u6587\u5c06\u4ecb\u7ecd\u591a\u5b54\u4ecb\u8d28\u4e2d\u70ed\u4f20\u9012\u7684\u57fa\u672c\u6982\u5ff5\u3001\u4e3b\u8981\u673a\u5236\u548c\u5b9e\u9645\u5e94\u7528\u3002<\/p>\n<h2>\u591a\u5b54\u4ecb\u8d28\u7684\u5b9a\u4e49<\/h2>\n<p>\u591a\u5b54\u4ecb\u8d28\u662f\u6307\u5185\u90e8\u542b\u6709\u5927\u91cf\u5b54\u9699\u7ed3\u6784\u7684\u6750\u6599\uff0c\u8fd9\u4e9b\u5b54\u9699\u53ef\u4ee5\u5145\u6ee1\u6c14\u4f53\u3001\u6db2\u4f53\u6216\u4e24\u8005\u7684\u6df7\u5408\u7269\u3002\u6839\u636e\u5b54\u9699\u5c3a\u5ea6\u7684\u4e0d\u540c\uff0c\u591a\u5b54\u4ecb\u8d28\u53ef\u4ee5\u5206\u4e3a\u5b8f\u89c2\u5b54\u9699\u3001\u4e2d\u89c2\u5b54\u9699\u548c\u5fae\u89c2\u5b54\u9699\u3002\u5176\u5b54\u9699\u7ed3\u6784\u5bf9\u70ed\u4f20\u9012\u8fc7\u7a0b\u6709\u7740\u91cd\u8981\u5f71\u54cd\u3002<\/p>\n<h2>\u70ed\u4f20\u9012\u7684\u4e3b\u8981\u673a\u5236<\/h2>\n<p>\u591a\u5b54\u4ecb\u8d28\u4e2d\u7684\u70ed\u4f20\u9012\u4e3b\u8981\u901a\u8fc7\u4ee5\u4e0b\u51e0\u79cd\u673a\u5236\u8fdb\u884c\uff1a<\/p>\n<p><u1><\/p>\n<li>\u4f20\u5bfc\u70ed\u4f20\u9012\uff08Conduction\uff09\uff1a\u901a\u8fc7\u56fa\u4f53\u9aa8\u67b6\u548c\u5b54\u9699\u5185\u6d41\u4f53\u7684\u70ed\u4f20\u5bfc\u3002<\/li>\n<li>\u5bf9\u6d41\u70ed\u4f20\u9012\uff08Convection\uff09\uff1a\u5b54\u9699\u5185\u6d41\u4f53\u6d41\u52a8\u5f15\u8d77\u7684\u70ed\u91cf\u4f20\u9012\uff0c\u7279\u522b\u662f\u5728\u6709\u5f3a\u5236\u6d41\u52a8\u6216\u81ea\u7136\u5bf9\u6d41\u7684\u60c5\u51b5\u4e0b\u3002<\/li>\n<li>\u8f90\u5c04\u70ed\u4f20\u9012\uff08Radiation\uff09\uff1a\u9ad8\u6e29\u73af\u5883\u4e0b\uff0c\u70ed\u8f90\u5c04\u5728\u5b54\u9699\u4e4b\u95f4\u4f20\u9012\u3002<\/li>\n<p><\/u1><\/p>\n<h2>\u70ed\u4f20\u5bfc<\/h2>\n<p>\u5728\u591a\u5b54\u4ecb\u8d28\u4e2d\uff0c\u4f20\u5bfc\u70ed\u4f20\u9012\u540c\u65f6\u5b58\u5728\u4e8e\u56fa\u4f53\u9aa8\u67b6\u548c\u5b54\u9699\u5185\u7684\u6d41\u4f53\u4e2d\u3002\u6574\u4f53\u70ed\u5bfc\u7387\u53ef\u4ee5\u901a\u8fc7\u6709\u6548\u70ed\u5bfc\u7387\u516c\u5f0f\u8fdb\u884c\u8ba1\u7b97\uff1a<\/p>\n<p>\\[ k_{eff} = k_s \\varphi_s + k_f \\varphi_f \\]\n<p>\u5176\u4e2d \\( k_{eff} \\) \u662f\u6709\u6548\u70ed\u5bfc\u7387\uff0c\\( k_s \\) \u548c \\( k_f \\) \u5206\u522b\u662f\u56fa\u4f53\u548c\u6d41\u4f53\u7684\u70ed\u5bfc\u7387\uff0c\\( \\varphi_s \\) \u548c \\( \\varphi_f \\) \u662f\u56fa\u76f8\u548c\u6d41\u4f53\u76f8\u7684\u4f53\u79ef\u5206\u6570\u3002<\/p>\n<h2>\u5bf9\u6d41\u70ed\u4f20\u9012<\/h2>\n<p>\u5bf9\u6d41\u5728\u591a\u5b54\u4ecb\u8d28\u4e2d\u7684\u70ed\u4f20\u9012\u4e3b\u8981\u53d7\u6d41\u4f53\u6d41\u52a8\u65b9\u5f0f\u7684\u5f71\u54cd\u3002\u81ea\u7136\u5bf9\u6d41\u4e3b\u8981\u7531\u6e29\u5ea6\u68af\u5ea6\u5f15\u8d77\u7684\u5bc6\u5ea6\u53d8\u5316\u5f15\u8d77\uff0c\u800c\u5f3a\u5236\u5bf9\u6d41\u5219\u662f\u7531\u5916\u90e8\u529b\u5bfc\u81f4\u7684\u6d41\u4f53\u8fd0\u52a8\u3002\u5982\u6709\u5b54\u6e17\u900f\u7387\uff08permeability\uff09\u662f\u91cd\u8981\u53c2\u6570\u4e4b\u4e00\uff0c\u5f71\u54cd\u6d41\u4f53\u6d41\u52a8\u901f\u5ea6\u548c\u4f20\u70ed\u6548\u7387\u3002<\/p>\n<h2>\u8f90\u5c04\u70ed\u4f20\u9012<\/h2>\n<p>\u8f90\u5c04\u70ed\u4f20\u9012\u5728\u9ad8\u6e29\u548c\u9ad8\u5b54\u9699\u7387\u73af\u5883\u4e2d\u5c24\u4e3a\u91cd\u8981\u3002Stefan-Boltzmann \u5b9a\u5f8b\u63cf\u8ff0\u4e86\u8f90\u5c04\u70ed\u6d41\u5bc6\u5ea6\uff1a<\/p>\n<p>\\[ q = \\sigma T^4 (A_e) \\]\n<p>\u5176\u4e2d \\( q \\) \u662f\u70ed\u6d41\u5bc6\u5ea6\uff0c\\( \\sigma \\) \u662f Stefan-Boltzmann \u5e38\u6570\uff0c\\( T \\) \u662f\u7edd\u5bf9\u6e29\u5ea6\uff0c\\( A_e \\) \u662f\u6709\u6548\u8f90\u5c04\u8868\u9762\u79ef\u3002<\/p>\n<h2>\u5b9e\u9645\u5e94\u7528<\/h2>\n<p>\u591a\u5b54\u4ecb\u8d28\u4e2d\u7684\u70ed\u4f20\u9012\u7814\u7a76\u5728\u8bb8\u591a\u5b9e\u9645\u5e94\u7528\u4e2d\u8d77\u5230\u5173\u952e\u4f5c\u7528\uff1a<\/p>\n<p><o1><\/p>\n<li>\u571f\u58e4\u4f20\u70ed\uff1a\u5bf9\u519c\u4e1a\u548c\u5efa\u7b51\u5730\u57fa\u70ed\u4f20\u9012\u7684\u7814\u7a76\u3002<\/li>\n<li>\u5ca9\u571f\u5de5\u7a0b\uff1a\u5206\u6790\u96a7\u9053\u3001\u5730\u4e0b\u50a8\u70ed\u548c\u70ed\u80fd\u5f00\u91c7\u4e2d\u7684\u70ed\u4f20\u9012\u95ee\u9898\u3002<\/li>\n<li>\u53d1\u6ce1\u6750\u6599\uff1a\u7528\u4e8e\u9694\u70ed\u6750\u6599\u7684\u70ed\u6027\u80fd\u7814\u7a76\u3002<\/li>\n<li>\u751f\u7269\u7ec4\u7ec7\uff1a\u4eba\u4f53\u5668\u5b98\u79fb\u690d\u7b49\u533b\u5b66\u9886\u57df\u4e2d\u7ec4\u7ec7\u7684\u70ed\u884c\u4e3a\u5206\u6790\u3002<\/li>\n<p><\/o1><\/p>\n<h2>\u603b\u7ed3<\/h2>\n<p>\u591a\u5b54\u4ecb\u8d28\u4e2d\u7684\u70ed\u4f20\u9012\u6d89\u53ca\u591a\u79cd\u673a\u5236\u548c\u590d\u6742\u7684\u7269\u7406\u8fc7\u7a0b\u3002\u4e86\u89e3\u8fd9\u4e9b\u673a\u5236\u6709\u52a9\u4e8e\u4f18\u5316\u76f8\u5173\u5de5\u7a0b\u8bbe\u8ba1\uff0c\u63d0\u9ad8\u4f20\u70ed\u6548\u7387\uff0c\u5e94\u7528\u4e8e\u5404\u4e2a\u9886\u57df\u3002\u672a\u6765\u7684\u7814\u7a76\u5c06\u7ee7\u7eed\u63a2\u7d22\u591a\u5b54\u4ecb\u8d28\u4e2d\u70ed\u4f20\u9012\u7684\u5fae\u89c2\u673a\u5236\u548c\u5b8f\u89c2\u6027\u80fd\uff0c\u4fc3\u8fdb\u6280\u672f\u8fdb\u6b65\u548c\u5b9e\u9645\u5e94\u7528\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u591a\u5b54\u4ecb\u8d28\u4e2d\u7684\u70ed\u4f20\u9012\uff1a\u89e3\u91ca\u70ed\u91cf\u5982\u4f55\u901a\u8fc7\u591a\u5b54\u6750\u6599\u4f20\u64ad\uff0c\u5206\u6790\u5f71\u54cd\u4f20\u70ed\u6548\u7387\u7684\u56e0\u7d20\uff0c\u5e94\u7528\u4e8e\u80fd\u6e90\u3001\u73af\u5883\u7b49\u9886\u57df\u7684\u5de5\u7a0b\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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