{"id":739895,"date":"2024-10-08T06:01:29","date_gmt":"2024-10-08T05:01:29","guid":{"rendered":"https:\/\/www.thermal-engineering.org\/?p=739895"},"modified":"2024-10-08T06:01:29","modified_gmt":"2024-10-08T05:01:29","slug":"%e7%ba%b3%e7%b1%b3%e6%b5%81%e4%bd%93%e7%9a%84%e6%b5%81%e5%8a%a8%e4%b8%8e%e4%bc%a0%e7%83%ad","status":"publish","type":"post","link":"https:\/\/www.thermal-engineering.org\/zh-hans\/%e7%ba%b3%e7%b1%b3%e6%b5%81%e4%bd%93%e7%9a%84%e6%b5%81%e5%8a%a8%e4%b8%8e%e4%bc%a0%e7%83%ad\/","title":{"rendered":"\u7eb3\u7c73\u6d41\u4f53\u7684\u6d41\u52a8\u4e0e\u4f20\u70ed"},"content":{"rendered":"<p class=\"sidekick\">\u7eb3\u7c73\u6d41\u4f53\u7684\u6d41\u52a8\u4e0e\u4f20\u70ed\uff1a\u63a2\u8ba8\u7eb3\u7c73\u9897\u7c92\u63d0\u9ad8\u6d41\u4f53\u4f20\u70ed\u6027\u80fd\u7684\u65b9\u6cd5\uff0c\u53ca\u5176\u5728\u70ed\u7ba1\u7406\u7cfb\u7edf\u4e2d\u7684\u5e94\u7528\u4e0e\u4f18\u52bf\uff0c\u63d0\u5347\u5de5\u7a0b\u6548\u7387\u7684\u521b\u65b0\u7814\u7a76\u3002<\/p>\n<p><img src=\"https:\/\/www.thermal-engineering.org\/wp-content\/uploads\/2024\/07\/\u7eb3\u7c73\u6d41\u4f53\u7684\u6d41\u52a8\u4e0e\u4f20\u70ed.png\" alt=\"\u7eb3\u7c73\u6d41\u4f53\u7684\u6d41\u52a8\u4e0e\u4f20\u70ed\" style=\"display: block; margin-left: auto; margin-right: auto;\"\/><\/p>\n<h2>\u7eb3\u7c73\u6d41\u4f53\u7684\u6d41\u52a8\u4e0e\u4f20\u70ed<\/h2>\n<p>\u7eb3\u7c73\u6d41\u4f53\u662f\u5c06\u7eb3\u7c73\u7ea7\u7684\u9897\u7c92\u5206\u6563\u5728\u57fa\u7840\u6d41\u4f53\uff08\u5982\u6c34\u3001\u4e59\u4e8c\u9187\u548c\u6cb9\uff09\u4e2d\u7684\u4e00\u79cd\u6d41\u4f53\u3002\u7531\u4e8e\u7eb3\u7c73\u9897\u7c92\u7684\u5b58\u5728\uff0c\u7eb3\u7c73\u6d41\u4f53\u5177\u6709\u4f18\u4e8e\u5e38\u89c4\u6d41\u4f53\u7684\u70ed\u7269\u7406\u7279\u6027\uff0c\u8fd9\u4f7f\u5b83\u4eec\u5728\u4f20\u70ed\u548c\u6d41\u52a8\u65b9\u9762\u5177\u6709\u663e\u8457\u7684\u4f18\u52bf\u3002<\/p>\n<h2>\u7eb3\u7c73\u6d41\u4f53\u7684\u7ec4\u6210\u548c\u6027\u8d28<\/h2>\n<p>\u7eb3\u7c73\u6d41\u4f53\u7684\u57fa\u672c\u6210\u5206\u5305\u62ec\u57fa\u7840\u6d41\u4f53\u548c\u7eb3\u7c73\u9897\u7c92\u3002\u7eb3\u7c73\u9897\u7c92\u7684\u6750\u6599\u53ef\u4ee5\u662f\u91d1\u5c5e\uff08\u5982\u94dc\u3001\u94dd\uff09\u3001\u6c27\u5316\u7269\uff08\u5982\u6c27\u5316\u94dd\u3001\u4e8c\u6c27\u5316\u7845\uff09\u4ee5\u53ca\u78b3\u57fa\u6750\u6599\uff08\u5982\u78b3\u7eb3\u7c73\u7ba1\u3001\u77f3\u58a8\u70ef\uff09\u3002\u8fd9\u4e9b\u7eb3\u7c73\u9897\u7c92\u7684\u5c3a\u5bf8\u901a\u5e38\u57281-100\u7eb3\u7c73\u4e4b\u95f4\u3002<\/p>\n<ul>\n<li><strong>\u70ed\u5bfc\u7387:<\/strong> \u7eb3\u7c73\u6d41\u4f53\u7684\u70ed\u5bfc\u7387\u9ad8\u4e8e\u57fa\u7840\u6d41\u4f53\uff0c\u4e3b\u8981\u662f\u56e0\u4e3a\u7eb3\u7c73\u9897\u7c92\u5177\u6709\u8f83\u9ad8\u7684\u70ed\u5bfc\u7387\u3002<\/li>\n<li><strong>\u7c98\u5ea6:<\/strong> \u7eb3\u7c73\u6d41\u4f53\u7684\u7c98\u5ea6\u901a\u5e38\u6bd4\u57fa\u7840\u6d41\u4f53\u9ad8\uff0c\u8fd9\u53ef\u80fd\u4f1a\u5bfc\u81f4\u6d41\u52a8\u963b\u529b\u589e\u52a0\u3002<\/li>\n<li><strong>\u7a33\u5b9a\u6027:<\/strong> \u7eb3\u7c73\u9897\u7c92\u5728\u6d41\u4f53\u4e2d\u7684\u5206\u6563\u72b6\u6001\u9700\u8981\u4fdd\u6301\u7a33\u5b9a\uff0c\u907f\u514d\u7531\u4e8e\u56e2\u805a\u800c\u5f71\u54cd\u4f20\u70ed\u6548\u679c\u3002<\/li>\n<\/ul>\n<h2>\u7eb3\u7c73\u6d41\u4f53\u7684\u6d41\u52a8\u7279\u6027<\/h2>\n<p>\u7eb3\u7c73\u6d41\u4f53\u7684\u6d41\u52a8\u7279\u6027\u5305\u62ec\u6d41\u52a8\u6a21\u5f0f\u3001\u6d41\u52a8\u963b\u529b\u548c\u96f7\u8bfa\u6570\u7b49\u56e0\u7d20\u3002\u7279\u522b\u5730\uff0c\u7eb3\u7c73\u6d41\u4f53\u7684\u96f7\u8bfa\u6570\u53ef\u4ee5\u8868\u793a\u4e3a:<\/p>\n<pre>\nRe = \\frac{\u03c1uD}{\u03bc}\n<\/pre>\n<p>\u5176\u4e2d\uff0c <sub>\u03c1<\/sub> \u8868\u793a\u5bc6\u5ea6\uff0c <sub>u<\/sub> \u8868\u793a\u901f\u5ea6\uff0c <sub>D<\/sub> \u8868\u793a\u7279\u5f81\u957f\u5ea6\uff0c <sub>\u03bc<\/sub> \u8868\u793a\u52a8\u529b\u7c98\u5ea6\u3002<\/p>\n<p>\u5728\u5c42\u6d41\u6761\u4ef6\u4e0b\uff0c\u7eb3\u7c73\u6d41\u4f53\u7684\u6d41\u52a8\u7279\u6027\u4e3b\u8981\u53d7\u7c98\u6027\u529b\u7684\u5f71\u54cd\uff0c\u800c\u5728\u6e4d\u6d41\u6761\u4ef6\u4e0b\uff0c\u5219\u4e3b\u8981\u53d7\u60ef\u6027\u529b\u7684\u5f71\u54cd\u3002\u7eb3\u7c73\u6d41\u4f53\u5728\u4e0d\u540c\u6761\u4ef6\u4e0b\u7684\u6d41\u52a8\u7279\u6027\u5bf9\u4f20\u70ed\u6709\u4e0d\u540c\u7684\u5f71\u54cd\u3002<\/p>\n<h2>\u7eb3\u7c73\u6d41\u4f53\u7684\u4f20\u70ed\u7279\u6027<\/h2>\n<p>\u7eb3\u7c73\u6d41\u4f53\u7684\u4f20\u70ed\u7279\u6027\u6bd4\u4f20\u7edf\u6d41\u4f53\u66f4\u4f18\u8d8a\uff0c\u4e3b\u8981\u8868\u73b0\u4e3a\u63d0\u9ad8\u70ed\u5bfc\u7387\u548c\u8868\u9762\u4f20\u70ed\u7cfb\u6570\u3002\u4f20\u70ed\u7cfb\u6570\u8868\u793a\u4e3a:<\/p>\n<pre>\nk = k_f (1 + \u03c6*(k_nf\/k_f - 1))\n<\/pre>\n<p>\u5176\u4e2d\uff0c <sub>k<\/sub> \u8868\u793a\u4f20\u70ed\u7cfb\u6570\uff0c <sub>k_f<\/sub> \u8868\u793a\u57fa\u7840\u6d41\u4f53\u7684\u4f20\u70ed\u7cfb\u6570\uff0c <sub>\u03c6<\/sub> \u8868\u793a\u7eb3\u7c73\u9897\u7c92\u7684\u4f53\u79ef\u5206\u6570\uff0c <sub>k_nf<\/sub> \u8868\u793a\u7eb3\u7c73\u6d41\u4f53\u7684\u4f20\u70ed\u7cfb\u6570\u3002<\/p>\n<ol>\n<li>\u7531\u4e8e\u7eb3\u7c73\u9897\u7c92\u7684\u9ad8\u5bfc\u70ed\u6027\uff0c\u7eb3\u7c73\u6d41\u4f53\u4f20\u70ed\u6027\u80fd\u4f18\u4e8e\u4f20\u7edf\u6d41\u4f53\u3002<\/li>\n<li>\u7eb3\u7c73\u9897\u7c92\u7684\u5e03\u6717\u8fd0\u52a8\u589e\u5f3a\u4e86\u5fae\u89c2\u5c3a\u5ea6\u7684\u4f20\u70ed\u3002<\/li>\n<li>\u7531\u4e8e\u8f83\u9ad8\u7684\u8868\u9762\u79ef\uff0c\u7eb3\u7c73\u9897\u7c92\u4fc3\u8fdb\u4e86\u6d41\u4f53\u6df7\u5408\uff0c\u4ece\u800c\u63d0\u9ad8\u4e86\u4f20\u70ed\u6548\u7387\u3002<\/li>\n<\/ol>\n<h2>\u5de5\u7a0b\u5e94\u7528<\/h2>\n<p>\u7eb3\u7c73\u6d41\u4f53\u5728\u591a\u4e2a\u9886\u57df\u4e2d\u5c55\u73b0\u51fa\u4e86\u5de8\u5927\u7684\u6f5c\u529b\u548c\u5e94\u7528\u524d\u666f\uff0c\u5305\u62ec:<\/p>\n<ul>\n<li>\u51b7\u5374\u7cfb\u7edf: \u7eb3\u7c73\u6d41\u4f53\u7528\u4e8e\u7535\u5b50\u8bbe\u5907\u548c\u5de5\u4e1a\u8fc7\u7a0b\u4e2d\u7684\u51b7\u5374\u7cfb\u7edf\uff0c\u4ee5\u63d0\u9ad8\u51b7\u5374\u6548\u7387\u3002<\/li>\n<li>\u592a\u9633\u80fd\u7cfb\u7edf: \u7eb3\u7c73\u6d41\u4f53\u5728\u5149\u70ed\u8f6c\u6362\u8fc7\u7a0b\u4e2d\u80fd\u6709\u6548\u63d0\u9ad8\u80fd\u91cf\u5438\u6536\u548c\u4f20\u9012\u6548\u7387\u3002<\/li>\n<li>\u533b\u7597\u9886\u57df: \u7eb3\u7c73\u6d41\u4f53\u5728\u76ee\u6807\u70ed\u7597\u3001\u836f\u7269\u8f93\u9001\u7b49\u65b9\u9762\u4e5f\u5177\u6709\u5e94\u7528\u524d\u666f\u3002<\/li>\n<\/ul>\n<p>\u603b\u4e4b\uff0c\u7eb3\u7c73\u6d41\u4f53\u56e0\u5176\u72ec\u7279\u7684\u7269\u7406\u7279\u6027\u548c\u663e\u8457\u7684\u4f20\u70ed\u6548\u679c\uff0c\u6210\u4e3a\u73b0\u4ee3\u70ed\u5de5\u7a0b\u9886\u57df\u7684\u7814\u7a76\u70ed\u70b9\uff0c\u5728\u672a\u6765\u7684\u5de5\u4e1a\u548c\u79d1\u6280\u4e2d\u5177\u6709\u5e7f\u6cdb\u7684\u5e94\u7528\u6f5c\u529b\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u7eb3\u7c73\u6d41\u4f53\u7684\u6d41\u52a8\u4e0e\u4f20\u70ed\uff1a\u63a2\u8ba8\u7eb3\u7c73\u9897\u7c92\u63d0\u9ad8\u6d41\u4f53\u4f20\u70ed\u6027\u80fd\u7684\u65b9\u6cd5\uff0c\u53ca\u5176\u5728\u70ed\u7ba1\u7406\u7cfb\u7edf\u4e2d\u7684\u5e94\u7528\u4e0e\u4f18\u52bf\uff0c\u63d0\u5347\u5de5\u7a0b\u6548\u7387\u7684\u521b\u65b0\u7814\u7a76\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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