{"id":753462,"date":"2024-08-14T19:52:30","date_gmt":"2024-08-14T18:52:30","guid":{"rendered":"https:\/\/www.thermal-engineering.org\/?p=753462"},"modified":"2024-08-14T19:52:30","modified_gmt":"2024-08-14T18:52:30","slug":"%e7%b2%98%e6%80%a7%e5%8a%a0%e7%83%ad%e5%a6%82%e4%bd%95%e5%bd%b1%e5%93%8d%e6%b5%81%e4%bd%93%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/www.thermal-engineering.org\/zh-hans\/%e7%b2%98%e6%80%a7%e5%8a%a0%e7%83%ad%e5%a6%82%e4%bd%95%e5%bd%b1%e5%93%8d%e6%b5%81%e4%bd%93%ef%bc%9f\/","title":{"rendered":"\u7c98\u6027\u52a0\u70ed\u5982\u4f55\u5f71\u54cd\u6d41\u4f53\uff1f"},"content":{"rendered":"<p class=\"sidekick\">\u7c98\u6027\u52a0\u70ed\u5982\u4f55\u5f71\u54cd\u6d41\u4f53\uff1f\u4e86\u89e3\u7c98\u6027\u4ea7\u751f\u7684\u70ed\u91cf\u5bf9\u6d41\u4f53\u6e29\u5ea6\u3001\u6d41\u52a8\u53ca\u5176\u5e94\u7528\u7684\u5f71\u54cd\uff0c\u63ed\u793a\u5de5\u7a0b\u5b9e\u8df5\u4e2d\u5173\u952e\u7684\u70ed\u91cf\u7ba1\u7406\u6280\u672f\u3002<\/p>\n<p><img src=\"https:\/\/www.thermal-engineering.org\/wp-content\/uploads\/2024\/07\/\u7c98\u6027\u52a0\u70ed\u5982\u4f55\u5f71\u54cd\u6d41\u4f53.png\" alt=\"\u7c98\u6027\u52a0\u70ed\u5982\u4f55\u5f71\u54cd\u6d41\u4f53\uff1f\" style=\"display: block; margin-left: auto; margin-right: auto;\"\/><\/p>\n<h2>\u7c98\u6027\u52a0\u70ed\u5982\u4f55\u5f71\u54cd\u6d41\u4f53\uff1f<\/h2>\n<p>\u5728\u70ed\u5de5\u5b66\u4e2d\uff0c\u5f53\u6d41\u4f53\u5728\u7ba1\u9053\u6216\u5176\u4ed6\u754c\u9762\u4e2d\u6d41\u52a8\u65f6\uff0c\u7531\u4e8e\u6d41\u4f53\u5206\u5b50\u4e4b\u95f4\u7684\u5185\u6469\u64e6\uff08\u5373\u7c98\u6027\uff09\uff0c\u4f1a\u4ea7\u751f\u70ed\u91cf\uff0c\u8fd9\u79cd\u73b0\u8c61\u88ab\u79f0\u4e3a\u7c98\u6027\u52a0\u70ed\u3002\u7c98\u6027\u52a0\u70ed\u662f\u6d41\u4f53\u529b\u5b66\u4e2d\u7684\u4e00\u4e2a\u91cd\u8981\u6982\u5ff5\uff0c\u5c24\u5176\u5728\u9ad8\u7c98\u5ea6\u548c\u9ad8\u901f\u5ea6\u7684\u6d41\u52a8\u4e2d\u66f4\u52a0\u663e\u8457\u3002<\/p>\n<h2>\u7c98\u6027\u52a0\u70ed\u7684\u57fa\u672c\u539f\u7406<\/h2>\n<p>\u5f53\u6d41\u4f53\u6d41\u8fc7\u8868\u9762\u65f6\uff0c\u4f1a\u7ecf\u5386\u526a\u5207\u5e94\u529b\uff0c\u5bfc\u81f4\u5185\u6469\u64e6\u3002\u7c98\u6027\u52a0\u70ed\u662f\u8fd9\u79cd\u5185\u6469\u64e6\u8f6c\u5316\u4e3a\u70ed\u80fd\u7684\u7ed3\u679c\u3002\u6839\u636e\u70ed\u5b66\u57fa\u672c\u539f\u7406\uff0c\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u516c\u5f0f\u63cf\u8ff0\u7c98\u6027\u52a0\u70ed\u4ea7\u751f\u7684\u70ed\u91cf\uff1a<\/p>\n<p>\\[<br \/>\nQ = \\tau \\cdot \\dot{\\gamma} \\cdot V<br \/>\n\\]\n<p>\u5176\u4e2d\uff1a<\/p>\n<ul>\n<li>\\(\\tau\\) \u8868\u793a\u526a\u5207\u5e94\u529b<\/li>\n<li>\\(\\dot{\\gamma}\\) \u8868\u793a\u526a\u5207\u901f\u7387\uff0c\u5373\u901f\u5ea6\u68af\u5ea6<\/li>\n<li>V \u8868\u793a\u6d41\u4f53\u4f53\u79ef<\/li>\n<\/ul>\n<h2>\u7c98\u6027\u52a0\u70ed\u5bf9\u6d41\u4f53\u6e29\u5ea6\u7684\u5f71\u54cd<\/h2>\n<p>\u7c98\u6027\u52a0\u70ed\u4ea7\u751f\u7684\u70ed\u91cf\u4f1a\u76f4\u63a5\u5f71\u54cd\u6d41\u4f53\u7684\u6e29\u5ea6\u5206\u5e03\u3002\u4f8b\u5982\uff0c\u5728\u7ba1\u9053\u4e2d\uff0c\u7ba1\u58c1\u9644\u8fd1\u7684\u6d41\u4f53\u7531\u4e8e\u8f83\u9ad8\u7684\u526a\u5207\u5e94\u529b\u548c\u901f\u7387\u68af\u5ea6\uff0c\u4f1a\u4ea7\u751f\u66f4\u591a\u7684\u70ed\u91cf\uff0c\u5bfc\u81f4\u6e29\u5ea6\u5347\u9ad8\u3002<\/p>\n<p>\u4ee5\u4e0b\u4e3a\u63cf\u8ff0\u6e29\u5ea6\u5347\u9ad8\u7684\u516c\u5f0f\uff1a<\/p>\n<p>\\[<br \/>\n\\Delta T = \\frac{\\mu U^2}{\\rho c_p}<br \/>\n\\]\n<p>\u5176\u4e2d\uff1a<\/p>\n<ul>\n<li>\\(\\mu\\) \u8868\u793a\u52a8\u6001\u7c98\u5ea6<\/li>\n<li>U \u8868\u793a\u6d41\u4f53\u6d41\u901f<\/li>\n<li>\\(\\rho\\) \u8868\u793a\u6d41\u4f53\u5bc6\u5ea6<\/li>\n<li>c<sub>p<\/sub> \u8868\u793a\u6bd4\u70ed\u5bb9<\/li>\n<\/ul>\n<h2>\u5e94\u7528\u5b9e\u4f8b<\/h2>\n<ol>\n<li><strong>\u6da6\u6ed1\u7cfb\u7edf\uff1a<\/strong>\u5728\u9ad8\u901f\u8fd0\u8f6c\u7684\u673a\u68b0\u8bbe\u5907\u4e2d\uff0c\u6da6\u6ed1\u6cb9\u7684\u7c98\u6027\u52a0\u70ed\u6548\u5e94\u4e0d\u53ef\u5ffd\u89c6\u3002\u6da6\u6ed1\u6cb9\u6e29\u5ea6\u7684\u5347\u9ad8\u53ef\u80fd\u5bfc\u81f4\u5176\u9ecf\u5ea6\u51cf\u5c0f\uff0c\u5f71\u54cd\u6da6\u6ed1\u6548\u679c\u3002<\/li>\n<li><strong>\u6db2\u538b\u7cfb\u7edf\uff1a<\/strong>\u6db2\u538b\u6d41\u4f53\u5728\u9ad8\u538b\u4e0b\u7684\u6d41\u52a8\u4f1a\u4ea7\u751f\u663e\u8457\u7684\u7c98\u6027\u52a0\u70ed\uff0c\u8fd9\u4f1a\u5f71\u54cd\u7cfb\u7edf\u6027\u80fd\u548c\u6548\u7387\u3002<\/li>\n<li><strong>\u822a\u7a7a\u822a\u5929\uff1a<\/strong>\u9ad8\u901f\u98de\u884c\u5668\u5468\u56f4\u7a7a\u6c14\u7684\u5267\u70c8\u6d41\u52a8\u4f1a\u56e0\u7c98\u6027\u52a0\u70ed\u5bfc\u81f4\u8868\u9762\u6e29\u5ea6\u5267\u70c8\u4e0a\u5347\uff0c\u5bf9\u98de\u884c\u5668\u6750\u6599\u63d0\u51fa\u66f4\u9ad8\u8981\u6c42\u3002<\/li>\n<\/ol>\n<h2>\u7c98\u6027\u52a0\u70ed\u7684\u63a7\u5236\u65b9\u6cd5<\/h2>\n<p>\u5728\u5de5\u4e1a\u5e94\u7528\u4e2d\uff0c\u63a7\u5236\u6d41\u4f53\u7684\u6e29\u5ea6\u662f\u975e\u5e38\u91cd\u8981\u7684\u3002\u4ee5\u4e0b\u662f\u51e0\u79cd\u5e38\u89c1\u7684\u63a7\u5236\u65b9\u6cd5\uff1a<\/p>\n<ul>\n<li><strong>\u4f7f\u7528\u51b7\u5374\u7cfb\u7edf\uff1a<\/strong>\u5b89\u88c5\u51b7\u5374\u88c5\u7f6e\u6765\u5e26\u8d70\u56e0\u7c98\u6027\u52a0\u70ed\u4ea7\u751f\u7684\u591a\u4f59\u70ed\u91cf\u3002<\/li>\n<li><strong>\u4f18\u5316\u6d41\u4f53\u6d41\u901f\uff1a<\/strong>\u901a\u8fc7\u964d\u4f4e\u6d41\u901f\u6765\u51cf\u5c11\u5185\u6469\u64e6\uff0c\u4ece\u800c\u51cf\u5c11\u7c98\u6027\u52a0\u70ed\u3002<\/li>\n<li><strong>\u9009\u7528\u9002\u5f53\u7684\u6d41\u4f53\uff1a<\/strong>\u9009\u62e9\u7c98\u5ea6\u9002\u5f53\u7684\u6d41\u4f53\uff0c\u4ee5\u5728\u6ee1\u8db3\u9700\u6c42\u7684\u540c\u65f6\u5c3d\u91cf\u51cf\u5c11\u7c98\u6027\u52a0\u70ed\u3002<\/li>\n<\/ul>\n<p>\u603b\u4e4b\uff0c\u7c98\u6027\u52a0\u70ed\u662f\u6d41\u4f53\u529b\u5b66\u548c\u70ed\u5de5\u5b66\u4e2d\u91cd\u8981\u7684\u73b0\u8c61\u4e4b\u4e00\u3002\u7406\u89e3\u548c\u63a7\u5236\u7c98\u6027\u52a0\u70ed\u5bf9\u5404\u79cd\u6280\u672f\u7cfb\u7edf\u7684\u6027\u80fd\u548c\u6548\u7387\u81f3\u5173\u91cd\u8981\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u7c98\u6027\u52a0\u70ed\u5982\u4f55\u5f71\u54cd\u6d41\u4f53\uff1f\u4e86\u89e3\u7c98\u6027\u4ea7\u751f\u7684\u70ed\u91cf\u5bf9\u6d41\u4f53\u6e29\u5ea6\u3001\u6d41\u52a8\u53ca\u5176\u5e94\u7528\u7684\u5f71\u54cd\uff0c\u63ed\u793a\u5de5\u7a0b\u5b9e\u8df5\u4e2d\u5173\u952e\u7684\u70ed\u91cf\u7ba1\u7406\u6280\u672f\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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