{"id":753234,"date":"2024-07-30T20:35:44","date_gmt":"2024-07-30T19:35:44","guid":{"rendered":"https:\/\/www.thermal-engineering.org\/?p=753234"},"modified":"2024-07-30T20:35:44","modified_gmt":"2024-07-30T19:35:44","slug":"%e4%bd%8e%e6%b8%a9%e7%83%ad%e4%bc%a0%e5%af%bc%e5%8e%9f%e7%90%86","status":"publish","type":"post","link":"https:\/\/www.thermal-engineering.org\/zh-hans\/%e4%bd%8e%e6%b8%a9%e7%83%ad%e4%bc%a0%e5%af%bc%e5%8e%9f%e7%90%86\/","title":{"rendered":"\u4f4e\u6e29\u70ed\u4f20\u5bfc\u539f\u7406"},"content":{"rendered":"

\u4f4e\u6e29\u70ed\u4f20\u5bfc\u539f\u7406\u7531\u51b7\u81f3\u70ed\u4f20\u9012\u80fd\u91cf\u7684\u8fc7\u7a0b\uff0c\u63a2\u8ba8\u56fa\u4f53\u3001\u6db2\u4f53\u548c\u6c14\u4f53\u5728\u4f4e\u6e29\u6761\u4ef6\u4e0b\u7684\u70ed\u4f20\u5bfc\u673a\u5236\uff0c\u5e94\u7528\u4e8e\u8d85\u5bfc\u548c\u6df1\u7a7a\u63a2\u6d4b\u7b49\u9886\u57df\u3002<\/p>\n

\"\u4f4e\u6e29\u70ed\u4f20\u5bfc\u539f\u7406\"<\/p>\n

\u4f4e\u6e29\u70ed\u4f20\u5bfc\u539f\u7406<\/h2>\n

\u70ed\u4f20\u5bfc\u662f\u70ed\u91cf\u4ece\u9ad8\u6e29\u533a\u57df\u5411\u4f4e\u6e29\u533a\u57df\u4f20\u9012\u7684\u8fc7\u7a0b\uff0c\u5b83\u662f\u4e09\u79cd\u4e3b\u8981\u7684\u70ed\u4f20\u9012\u65b9\u5f0f\u4e4b\u4e00\uff0c\u53e6\u5916\u4e24\u79cd\u662f\u5bf9\u6d41\u548c\u8f90\u5c04\u3002\u5728\u4f4e\u6e29\u73af\u5883\u4e0b\uff0c\u70ed\u4f20\u5bfc\u7684\u884c\u4e3a\u4e0e\u5e38\u6e29\u4e0b\u6709\u6240\u4e0d\u540c\uff0c\u8fd9\u79cd\u73b0\u8c61\u5728\u4f4e\u6e29\u7269\u7406\u548c\u5de5\u7a0b\u4e2d\u5c24\u4e3a\u91cd\u8981\u3002<\/p>\n

\u70ed\u4f20\u5bfc\u57fa\u672c\u65b9\u7a0b<\/h2>\n

\u70ed\u4f20\u5bfc\u53ef\u4ee5\u7528\u5085\u91cc\u53f6\u70ed\u4f20\u5bfc\u5b9a\u5f8b\u6765\u63cf\u8ff0\uff1a<\/p>\n

\n q<\/i> = –k<\/i> \\(\\frac{\\partial T}{\\partial x}\\)\n<\/p>\n

\u5176\u4e2d\uff0cq<\/i> \u8868\u793a\u70ed\u6d41\u5bc6\u5ea6\uff0ck<\/i> \u662f\u6750\u6599\u7684\u70ed\u5bfc\u7387\uff0cT<\/i> \u662f\u6e29\u5ea6\uff0cx<\/i> \u662f\u7a7a\u95f4\u4f4d\u7f6e\u3002\u8d1f\u53f7\u8868\u793a\u70ed\u91cf\u4ece\u9ad8\u6e29\u6d41\u5411\u4f4e\u6e29\u533a\u57df\u3002<\/p>\n

\u4f4e\u6e29\u4e0b\u7684\u70ed\u5bfc\u7387<\/h2>\n

\u5728\u4f4e\u6e29\u73af\u5883\u4e0b\uff0c\u6750\u6599\u7684\u70ed\u5bfc\u7387\u8868\u73b0\u4f1a\u53d1\u751f\u663e\u8457\u53d8\u5316\u3002\u5bf9\u4e8e\u7edd\u7f18\u4f53\u548c\u5bfc\u4f53\uff0c\u8fd9\u4e9b\u53d8\u5316\u89c4\u5f8b\u4e0d\u540c\uff1a<\/p>\n

    \n
  • \u7edd\u7f18\u4f53\uff1a<\/b> \u5728\u4f4e\u6e29\u4e0b\uff0c\u7edd\u7f18\u4f53\u7684\u70ed\u5bfc\u7387\u901a\u5e38\u968f\u6e29\u5ea6\u964d\u4f4e\u800c\u51cf\u5c0f\u3002\u8fd9\u662f\u56e0\u4e3a\u4f9d\u9760\u6676\u683c\u632f\u52a8\uff08\u58f0\u5b50\uff09\u7684\u80fd\u91cf\u4f20\u9012\u5728\u4f4e\u6e29\u4e0b\u53d8\u5f97\u66f4\u52a0\u56f0\u96be\u3002<\/li>\n
  • \u91d1\u5c5e\u5bfc\u4f53\uff1a<\/b> \u5728\u91d1\u5c5e\u4e2d\uff0c\u70ed\u5bfc\u7387\u548c\u7535\u5bfc\u7387\u76f8\u5173\u8054\u3002\u6839\u636e Wiedemann-Franz \u5b9a\u5f8b\uff0c\u53ef\u4ee5\u63cf\u8ff0\u4e3a\uff1a\n

    \n \\(\\frac{\\kappa}{\\sigma T}\\) = L
    \n <\/i>
    \n \u5176\u4e2d\uff0c\\(\\kappa\\)<\/i> \u662f\u70ed\u5bfc\u7387\uff0c\\(\\sigma\\)<\/i> \u662f\u7535\u5bfc\u7387\uff0cT<\/i> \u662f\u6e29\u5ea6\uff0cL<\/i> \u662f\u6d1b\u4f26\u5179\u6570\u3002\u5728\u6781\u4f4e\u6e29\uff08\u63a5\u8fd1\u7edd\u5bf9\u96f6\u5ea6\uff09\u65f6\uff0c\u91d1\u5c5e\u7684\u70ed\u5bfc\u7387\u53cd\u800c\u968f\u7740\u6e29\u5ea6\u964d\u4f4e\u800c\u589e\u5927\u3002\n <\/p>\n<\/li>\n<\/ul>\n

    \u8d85\u5bfc\u4f53\u7684\u7279\u6b8a\u60c5\u51b5<\/h2>\n

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    \u4f4e\u6e29\u70ed\u4f20\u5bfc\u5e94\u7528<\/h2>\n

    \u4f4e\u6e29\u70ed\u4f20\u5bfc\u5728\u8bb8\u591a\u6280\u672f\u4e2d\u6709\u91cd\u8981\u5e94\u7528\uff0c\u5305\u62ec\uff1a<\/p>\n

      \n
    1. \u4f4e\u6e29\u51b7\u5374\u8bbe\u5907\uff1a<\/b> \u5305\u62ec\u6db2\u6c26\u3001\u6db2\u6c2e\u51b7\u5374\u7cfb\u7edf\uff0c\u8fd9\u4e9b\u88c5\u7f6e\u4f9d\u8d56\u4e8e\u6709\u6548\u7684\u4f4e\u6e29\u70ed\u4f20\u5bfc\u6765\u7ef4\u6301\u4f4e\u6e29\u73af\u5883\u3002<\/li>\n
    2. \u8d85\u5bfc\u4f53\u6280\u672f\uff1a<\/b> \u7528\u4e8e MRI \u8bbe\u5907\u548c\u7c92\u5b50\u52a0\u901f\u5668\u7b49\u9ad8\u6280\u672f\u9886\u57df\uff0c\u9700\u8981\u7cbe\u786e\u63a7\u5236\u4f4e\u6e29\u4e0b\u7684\u70ed\u91cf\u4f20\u5bfc\u3002<\/li>\n
    3. \u822a\u5929\u5de5\u7a0b\uff1a<\/b> \u5728\u592a\u7a7a\u4e2d\u8fd0\u4f5c\u7684\u8bbe\u5907\u9700\u8981\u8003\u8651\u4f4e\u6e29\u73af\u5883\u4e2d\u7684\u70ed\u4f20\u5bfc\uff0c\u4ee5\u4fdd\u8bc1\u8bbe\u5907\u7684\u6b63\u5e38\u8fd0\u884c\u3002<\/li>\n<\/ol>\n

      \u7efc\u4e0a\u6240\u8ff0\uff0c\u4f4e\u6e29\u70ed\u4f20\u5bfc\u662f\u4e00\u4e2a\u590d\u6742\u4f46\u91cd\u8981\u7684\u9886\u57df\uff0c\u5bf9\u4e8e\u7406\u89e3\u548c\u5e94\u7528\u4f4e\u6e29\u7269\u7406\u548c\u5de5\u7a0b\u81f3\u5173\u91cd\u8981\u3002\u4e86\u89e3\u4e0d\u540c\u6750\u6599\u5728\u4f4e\u6e29\u4e0b\u7684\u70ed\u5bfc\u7387\u53d8\u5316\u89c4\u5f8b\uff0c\u53ef\u4ee5\u5e2e\u52a9\u8bbe\u8ba1\u66f4\u9ad8\u6548\u7684\u4f4e\u6e29\u7cfb\u7edf\u548c\u8bbe\u5907\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

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