{"id":744056,"date":"2024-11-23T02:17:42","date_gmt":"2024-11-23T01:17:42","guid":{"rendered":"https:\/\/www.thermal-engineering.org\/?p=744056"},"modified":"2024-11-23T02:17:42","modified_gmt":"2024-11-23T01:17:42","slug":"%e6%b0%b8%e5%86%bb%e5%9c%9f%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\/%e6%b0%b8%e5%86%bb%e5%9c%9f%e4%b8%ad%e7%9a%84%e7%83%ad%e4%bc%a0%e9%80%92\/","title":{"rendered":"\u6c38\u51bb\u571f\u4e2d\u7684\u70ed\u4f20\u9012"},"content":{"rendered":"<p class=\"sidekick\">\u6c38\u51bb\u571f\u4e2d\u7684\u70ed\u4f20\u9012\uff1a\u63a2\u8ba8\u70ed\u91cf\u5982\u4f55\u5728\u6c38\u51bb\u571f\u4e2d\u4f20\u64ad\uff0c\u5f71\u54cd\u5730\u9762\u6e29\u5ea6\u548c\u751f\u6001\u7cfb\u7edf\uff0c\u63ed\u793a\u5176\u4e2d\u7684\u5de5\u7a0b\u6311\u6218\u4e0e\u89e3\u51b3\u65b9\u6848\u3002<\/p>\n<p><img src=\"https:\/\/www.thermal-engineering.org\/wp-content\/uploads\/2024\/07\/\u6c38\u51bb\u571f\u4e2d\u7684\u70ed\u4f20\u9012.png\" alt=\"\u6c38\u51bb\u571f\u4e2d\u7684\u70ed\u4f20\u9012\" style=\"display: block; margin-left: auto; margin-right: auto;\"\/><\/p>\n<h2>\u6c38\u51bb\u571f\u4e2d\u7684\u70ed\u4f20\u9012<\/h2>\n<p>\u6c38\u51bb\u571f\u662f\u6307\u5730\u9762\u6216\u5730\u4e0b\u571f\u5c42\u5e38\u5e74\u5904\u4e8e\u51b0\u51bb\u72b6\u6001\uff0c\u901a\u5e38\u5b9a\u4e49\u4e3a\u8fde\u7eed\u4e24\u5e74\u4ee5\u4e0a\u6e29\u5ea6\u57280\u00b0C\u4ee5\u4e0b\u7684\u571f\u5c42\u3002\u6c38\u51bb\u571f\u5728\u5168\u7403\u5206\u5e03\u5e7f\u6cdb\uff0c\u4e3b\u8981\u5b58\u5728\u4e8e\u9ad8\u7eac\u5ea6\u5730\u533a\u548c\u9ad8\u6d77\u62d4\u5730\u533a\uff0c\u5982\u4fc4\u7f57\u65af\u3001\u897f\u4f2f\u5229\u4e9a\u3001\u52a0\u62ff\u5927\u548c\u963f\u62c9\u65af\u52a0\u7b49\u5730\u3002\u7406\u89e3\u6c38\u51bb\u571f\u4e2d\u7684\u70ed\u4f20\u9012\u673a\u5236\u5bf9\u4e8e\u8fd9\u4e9b\u5730\u533a\u7684\u57fa\u7840\u8bbe\u65bd\u5efa\u8bbe\u3001\u73af\u5883\u4fdd\u62a4\u548c\u6c14\u5019\u53d8\u5316\u7814\u7a76\u81f3\u5173\u91cd\u8981\u3002<\/p>\n<h2>\u70ed\u4f20\u9012\u7684\u57fa\u672c\u65b9\u5f0f<\/h2>\n<p>\u70ed\u4f20\u9012\u4e3b\u8981\u6709\u4e09\u79cd\u57fa\u672c\u65b9\u5f0f\uff1a\u4f20\u5bfc\u3001\u5bf9\u6d41\u548c\u8f90\u5c04\u3002\u5728\u6c38\u51bb\u571f\u4e2d\uff0c\u70ed\u4f20\u9012\u4e3b\u8981\u901a\u8fc7\u4f20\u5bfc\u548c\u5bf9\u6d41\u8fdb\u884c\u3002\u8f90\u5c04\u5728\u56fa\u6001\u6750\u6599\u5185\u90e8\u7684\u5f71\u54cd\u76f8\u5bf9\u8f83\u5c0f\u3002<\/p>\n<p><u1><\/p>\n<li><strong>\u4f20\u5bfc<\/strong>\uff1a\u4f20\u5bfc\u662f\u70ed\u91cf\u901a\u8fc7\u7269\u8d28\u4ece\u9ad8\u6e29\u533a\u4f20\u9012\u5230\u4f4e\u6e29\u533a\u7684\u8fc7\u7a0b\u3002\u5bf9\u4e8e\u6c38\u51bb\u571f\uff0c\u4f20\u5bfc\u662f\u4e3b\u8981\u7684\u70ed\u4f20\u9012\u65b9\u5f0f\u3002\u571f\u58e4\u9897\u7c92\u3001\u51b0\u548c\u6c34\u4e4b\u95f4\u7684\u70ed\u4f20\u5bfc\u7387\u51b3\u5b9a\u4e86\u70ed\u91cf\u5982\u4f55\u5728\u571f\u58e4\u4e2d\u4f20\u64ad\u3002<\/li>\n<li><strong>\u5bf9\u6d41<\/strong>\uff1a\u5bf9\u6d41\u662f\u5728\u6d41\u4f53\u4e2d\u7531\u4e8e\u6e29\u5ea6\u5dee\u5f02\u5f15\u8d77\u7684\u6d41\u52a8\u800c\u4f20\u9012\u70ed\u91cf\u7684\u65b9\u5f0f\u3002\u6c38\u51bb\u571f\u4e2d\u7684\u6c34\u5206\u8fd0\u52a8\u4e5f\u662f\u70ed\u4f20\u9012\u7684\u4e00\u4e2a\u91cd\u8981\u56e0\u7d20\uff0c\u5c24\u5176\u662f\u5728\u5b63\u8282\u6027\u51bb\u571f\u4e2d\u3002<\/li>\n<p><\/u1><\/p>\n<h2>\u6c38\u51bb\u571f\u4e2d\u7684\u70ed\u4f20\u9012\u6a21\u578b<\/h2>\n<p>\u4e3a\u4e86\u63cf\u8ff0\u6c38\u51bb\u571f\u4e2d\u7684\u70ed\u4f20\u9012\u8fc7\u7a0b\uff0c\u79d1\u5b66\u5bb6\u4eec\u63d0\u51fa\u4e86\u4e0d\u540c\u7684\u6570\u5b66\u6a21\u578b\u3002\u6700\u5e38\u89c1\u7684\u6a21\u578b\u662f\u57fa\u4e8e\u70ed\u4f20\u5bfc\u7684\u5085\u91cc\u53f6\u5b9a\u5f8b\uff1a<\/p>\n<p>\\[ q = -k \\frac{dT}{dx} \\]\n<p>\u5176\u4e2d\uff0c\\( q \\) \u662f\u70ed\u6d41\u5bc6\u5ea6\uff0c\\( k \\) \u662f\u571f\u58e4\u7684\u70ed\u4f20\u5bfc\u7387\uff0c\\( \\frac{dT}{dx} \\) \u662f\u6e29\u5ea6\u68af\u5ea6\u3002<\/p>\n<p>\u6b64\u5916\uff0c\u8fd8\u53ef\u4ee5\u4f7f\u7528\u4f20\u70ed\u65b9\u7a0b\u6765\u63cf\u8ff0\u6c38\u51bb\u571f\u4e2d\u7684\u52a8\u6001\u70ed\u4f20\u9012\u8fc7\u7a0b\uff1a<\/p>\n<p>\\[ \\frac{\\partial T}{\\partial t} = \\alpha \\frac{\\partial^2 T}{\\partial x^2} \\]\n<p>\u8fd9\u91cc\uff0c\\( \\alpha \\) \u662f\u70ed\u6269\u6563\u7cfb\u6570\u3002<\/p>\n<h2>\u73af\u5883\u56e0\u7d20\u5bf9\u70ed\u4f20\u9012\u7684\u5f71\u54cd<\/h2>\n<p>\u73af\u5883\u56e0\u7d20\u5bf9\u6c38\u51bb\u571f\u4e2d\u7684\u70ed\u4f20\u9012\u6709\u663e\u8457\u5f71\u54cd\uff0c\u5176\u4e2d\u6700\u91cd\u8981\u7684\u56e0\u7d20\u5305\u62ec\uff1a<\/p>\n<p><o1><\/p>\n<li><strong>\u6c14\u6e29<\/strong>\uff1a\u6c14\u6e29\u7684\u5347\u9ad8\u4f1a\u5bfc\u81f4\u5730\u8868\u6e29\u5ea6\u4e0a\u5347\uff0c\u4ece\u800c\u589e\u52a0\u6c38\u51bb\u571f\u878d\u5316\u7684\u98ce\u9669\u3002<\/li>\n<li><strong>\u964d\u6c34<\/strong>\uff1a\u964d\u6c34\u91cf\u548c\u964d\u6c34\u5f62\u5f0f\uff08\u5982\u96e8\u6c34\u6216\u96ea\uff09\u4f1a\u5f71\u54cd\u5730\u8868\u6e29\u5ea6\u548c\u571f\u58e4\u6c34\u5206\u542b\u91cf\uff0c\u4ece\u800c\u6539\u53d8\u571f\u58e4\u7684\u70ed\u4f20\u5bfc\u6027\u8d28\u3002<\/li>\n<li><strong>\u690d\u88ab<\/strong>\uff1a\u690d\u88ab\u8986\u76d6\u5bf9\u5730\u8868\u70ed\u91cf\u5e73\u8861\u6709\u7f13\u51b2\u4f5c\u7528\uff0c\u53ef\u4ee5\u51cf\u7f13\u5730\u8868\u6e29\u5ea6\u7684\u5267\u70c8\u53d8\u5316\u3002<\/li>\n<p><\/o1><\/p>\n<h2>\u5e94\u7528\u4e0e\u6311\u6218<\/h2>\n<p>\u7814\u7a76\u6c38\u51bb\u571f\u4e2d\u7684\u70ed\u4f20\u9012\u5bf9\u4e8e\u5de5\u7a0b\u5efa\u8bbe\u548c\u73af\u5883\u4fdd\u62a4\u5177\u6709\u91cd\u8981\u610f\u4e49\u3002\u4f8b\u5982\uff0c\u5728\u6c38\u51bb\u571f\u5730\u533a\u5efa\u9020\u9053\u8def\u3001\u94c1\u8def\u548c\u623f\u5c4b\u65f6\uff0c\u5fc5\u987b\u8003\u8651\u5230\u571f\u58e4\u878d\u5316\u53ef\u80fd\u5bfc\u81f4\u7684\u5730\u57fa\u6c89\u964d\u95ee\u9898\u3002\u6b64\u5916\uff0c\u5168\u7403\u6c14\u5019\u53d8\u6696\u5bf9\u6c38\u51bb\u571f\u7684\u5f71\u54cd\u662f\u5f53\u524d\u73af\u5883\u79d1\u5b66\u7814\u7a76\u7684\u70ed\u70b9\u4e4b\u4e00\uff0c\u7406\u89e3\u6c38\u51bb\u571f\u4e2d\u7684\u70ed\u4f20\u9012\u8fc7\u7a0b\u6709\u52a9\u4e8e\u9884\u6d4b\u5176\u5bf9\u6c14\u5019\u53d8\u5316\u7684\u54cd\u5e94\u3002<\/p>\n<p>\u7136\u800c\uff0c\u7531\u4e8e\u6c38\u51bb\u571f\u7cfb\u7edf\u7684\u590d\u6742\u6027\uff0c\u51c6\u786e\u9884\u6d4b\u70ed\u4f20\u9012\u8fc7\u7a0b\u4ecd\u9762\u4e34\u8bb8\u591a\u6311\u6218\uff0c\u5305\u62ec\u4e0d\u5747\u5300\u7684\u571f\u58e4\u7ed3\u6784\u3001\u591a\u53d8\u7684\u6c34\u5206\u72b6\u6001\u4ee5\u53ca\u6c14\u5019\u56e0\u7d20\u7684\u4e0d\u53ef\u9884\u89c1\u6027\u3002<\/p>\n<p>\u603b\u7684\u6765\u8bf4\uff0c\u6df1\u5165\u7814\u7a76\u6c38\u51bb\u571f\u4e2d\u7684\u70ed\u4f20\u9012\u8fc7\u7a0b\u4e0d\u4ec5\u6709\u52a9\u4e8e\u57fa\u7840\u79d1\u5b66\u7684\u53d1\u5c55\uff0c\u8fd8\u5bf9\u5de5\u7a0b\u5b9e\u8df5\u548c\u73af\u5883\u4fdd\u62a4\u5177\u6709\u91cd\u8981\u610f\u4e49\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6c38\u51bb\u571f\u4e2d\u7684\u70ed\u4f20\u9012\uff1a\u63a2\u8ba8\u70ed\u91cf\u5982\u4f55\u5728\u6c38\u51bb\u571f\u4e2d\u4f20\u64ad\uff0c\u5f71\u54cd\u5730\u9762\u6e29\u5ea6\u548c\u751f\u6001\u7cfb\u7edf\uff0c\u63ed\u793a\u5176\u4e2d\u7684\u5de5\u7a0b\u6311\u6218\u4e0e\u89e3\u51b3\u65b9\u6848\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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