{"id":720913,"date":"2024-11-20T11:48:54","date_gmt":"2024-11-20T10:48:54","guid":{"rendered":"https:\/\/www.thermal-engineering.org\/?p=720913"},"modified":"2024-11-20T11:48:54","modified_gmt":"2024-11-20T10:48:54","slug":"%e5%be%ae%e9%80%9a%e9%81%93%e7%83%ad%e4%ba%a4%e6%8d%a2%e5%99%a8%e8%af%a6%e8%a7%a3","status":"publish","type":"post","link":"https:\/\/www.thermal-engineering.org\/zh-hans\/%e5%be%ae%e9%80%9a%e9%81%93%e7%83%ad%e4%ba%a4%e6%8d%a2%e5%99%a8%e8%af%a6%e8%a7%a3\/","title":{"rendered":"\u5fae\u901a\u9053\u70ed\u4ea4\u6362\u5668\u8be6\u89e3"},"content":{"rendered":"<p class=\"sidekick\">\u5fae\u901a\u9053\u70ed\u4ea4\u6362\u5668\u8be6\u89e3\uff1a\u4e86\u89e3\u5fae\u901a\u9053\u70ed\u4ea4\u6362\u5668\u7684\u5de5\u4f5c\u539f\u7406\u3001\u7ed3\u6784\u7279\u70b9\u53ca\u5e94\u7528\u9886\u57df\uff0c\u6df1\u5165\u89e3\u6790\u5176\u5728\u9ad8\u6548\u70ed\u4f20\u5bfc\u4e2d\u7684\u4f18\u52bf\u4e0e\u6280\u672f\u6311\u6218\u3002<\/p>\n<p><img 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Ratio\uff0c\u7b80\u79f0SA\/V\uff09\u4f7f\u5176\u4f20\u70ed\u6548\u7387\u663e\u8457\u63d0\u9ad8\u3002<\/p>\n<h2>\u7ed3\u6784\u7279\u70b9<\/h2>\n<ul>\n<li><strong>\u7d27\u51d1\u578b\u8bbe\u8ba1<\/strong>\uff1a\u5fae\u901a\u9053\u70ed\u4ea4\u6362\u5668\u7684\u4f53\u79ef\u5c0f\u5de7\uff0c\u9002\u7528\u4e8e\u7a7a\u95f4\u53d7\u9650\u7684\u73af\u5883\u3002<\/li>\n<li><strong>\u6750\u6599\u9009\u62e9<\/strong>\uff1a\u4e00\u822c\u91c7\u7528\u94dd\u6216\u4e0d\u9508\u94a2\uff0c\u5177\u6709\u8f83\u9ad8\u7684\u5bfc\u70ed\u7cfb\u6570\u548c\u8010\u8150\u8680\u6027\u3002<\/li>\n<li><strong>\u9ad8\u6548\u4f20\u70ed<\/strong>\uff1a\u5fae\u901a\u9053\u5185\u90e8\u6d41\u4f53\u7684\u6d41\u52a8\u72b6\u6001\u901a\u5e38\u4e3a\u5c42\u6d41\uff0c\u51cf\u5c11\u4e86\u4f20\u70ed\u963b\u529b\u3002<\/li>\n<\/ul>\n<h2>\u5e94\u7528\u9886\u57df<\/h2>\n<ol>\n<li><strong>\u7a7a\u8c03\u548c\u5236\u51b7\u8bbe\u5907<\/strong>\uff1a\u7528\u4e8e\u5bb6\u5ead\u3001\u5546\u7528\u7a7a\u8c03\u7cfb\u7edf\u53ca\u51b7\u85cf\u8bbe\u5907\u3002<\/li>\n<li><strong>\u6c7d\u8f66\u5de5\u4e1a<\/strong>\uff1a\u6c7d\u8f66\u7a7a\u8c03\u7cfb\u7edf\u548c\u53d1\u52a8\u673a\u51b7\u5374\u7cfb\u7edf\u7684\u5173\u952e\u7ec4\u4ef6\u3002<\/li>\n<li><strong>\u7535\u5b50\u51b7\u5374<\/strong>\uff1a\u7528\u4e8e\u9ad8\u6027\u80fd\u8ba1\u7b97\u673a\u548c\u670d\u52a1\u5668\u7684\u70ed\u7ba1\u7406\u3002<\/li>\n<\/ol>\n<h2>\u4f18\u52bf\u5206\u6790<\/h2>\n<p>\u4e0e\u4f20\u7edf\u7684\u7ba1\u58f3\u5f0f\u6216\u677f\u5f0f\u70ed\u4ea4\u6362\u5668\u76f8\u6bd4\uff0c\u5fae\u901a\u9053\u70ed\u4ea4\u6362\u5668\u5177\u6709\u4ee5\u4e0b\u663e\u8457\u4f18\u52bf\uff1a<\/p>\n<ul>\n<li><strong>\u70ed\u4f20\u9012\u7cfb\u6570\u9ad8<\/strong>\uff1a\u7531\u4e8e\u5fae\u901a\u9053\u7684SA\/V\u6bd4\u9ad8\uff0c\u4f7f\u5f97\u5355\u4f4d\u4f53\u79ef\u5185\u7684\u70ed\u4f20\u9012\u6548\u7387\u663e\u8457\u63d0\u9ad8\u3002<\/li>\n<li><strong>\u91cd\u91cf\u8f7b<\/strong>\uff1a\u5fae\u901a\u9053\u70ed\u4ea4\u6362\u5668\u901a\u5e38\u4f7f\u7528\u94dd\u6750\uff0c\u91cd\u91cf\u8f83\u8f7b\uff0c\u6709\u5229\u4e8e\u79fb\u52a8\u548c\u5b89\u88c5\u3002<\/li>\n<li><strong>\u51cf\u5c11\u51b7\u5a92\u5145\u6ce8\u91cf<\/strong>\uff1a\u7531\u4e8e\u5176\u5185\u90e8\u5fae\u901a\u9053\u4f53\u79ef\u5206\u5e03\u5747\u5300\uff0c\u6240\u9700\u51b7\u5a92\u91cf\u51cf\u5c11\uff0c\u4ece\u800c\u964d\u4f4e\u6210\u672c\u548c\u73af\u5883\u5f71\u54cd\u3002<\/li>\n<\/ul>\n<h2>\u5e38\u89c1\u7684\u8bbe\u8ba1\u516c\u5f0f<\/h2>\n<p>\u5728\u8bbe\u8ba1\u548c\u5206\u6790\u5fae\u901a\u9053\u70ed\u4ea4\u6362\u5668\u65f6\uff0c\u4e00\u4e9b\u57fa\u672c\u7684\u4f20\u70ed\u4e0e\u6d41\u4f53\u529b\u5b66\u516c\u5f0f\u5e38\u5e38\u88ab\u5e94\u7528\uff0c\u4f8b\u5982\uff1a<\/p>\n<p>\u70ed\u4f20\u9012\u7387\u65b9\u7a0b\uff1a<\/p>\n<p>\\( Q = U * A * \\Delta T \\)<\/p>\n<p>\u5176\u4e2d\uff1a<\/p>\n<ul>\n<li><em>Q<\/em>\uff1a\u70ed\u4f20\u9012\u7387 (W)<\/li>\n<li><em>U<\/em>\uff1a\u603b\u4f20\u70ed\u7cfb\u6570 (W\/m<sup>2<\/sup>\u00b7K)<\/li>\n<li><em>A<\/em>\uff1a\u4f20\u70ed\u9762\u79ef (m<sup>2<\/sup>)<\/li>\n<li><em>\\(\\Delta T\\)<\/em>\uff1a\u6e29\u5ea6\u5dee (K)<\/li>\n<\/ul>\n<p>Reynolds\u6570\uff08\u96f7\u8bfa\u6570\uff09\u5224\u65ad\u6d41\u52a8\u72b6\u6001\uff1a<\/p>\n<p>\\( Re = \\frac{\\rho * V * D_h}{\\mu} \\)<\/p>\n<p>\u5176\u4e2d\uff1a<\/p>\n<ul>\n<li><em>Re<\/em>\uff1a\u96f7\u8bfa\u6570\uff0c\u65e0\u91cf\u7eb2<\/li>\n<li><em>\\(\\rho\\)<\/em>\uff1a\u6d41\u4f53\u5bc6\u5ea6 (kg\/m<sup>3<\/sup>)<\/li>\n<li><em>V<\/em>\uff1a\u6d41\u4f53\u901f\u5ea6 (m\/s)<\/li>\n<li><em>D_h<\/em>\uff1a\u6c34\u529b\u76f4\u5f84 (m)<\/li>\n<li><em>\\(\\mu\\)<\/em>\uff1a\u52a8\u529b\u7c98\u5ea6 (Pa\u00b7s)<\/li>\n<\/ul>\n<h2>\u7ed3\u8bba<\/h2>\n<p>\u5fae\u901a\u9053\u70ed\u4ea4\u6362\u5668\u56e0\u5176\u72ec\u7279\u7684\u8bbe\u8ba1\u548c\u4f18\u8d8a\u7684\u6027\u80fd\uff0c\u6b63\u9010\u6b65\u6210\u4e3a\u70ed\u7ba1\u7406\u9886\u57df\u7684\u4e3b\u6d41\u6280\u672f\u3002\u7406\u89e3\u5176\u5de5\u4f5c\u539f\u7406\u3001\u7ed3\u6784\u7279\u70b9\u548c\u5e94\u7528\u9886\u57df\uff0c\u53ef\u4ee5\u5e2e\u52a9\u6211\u4eec\u66f4\u597d\u5730\u5e94\u7528\u8fd9\u7c7b\u9ad8\u6548\u8282\u80fd\u7684\u70ed\u4ea4\u6362\u5668\uff0c\u4e3a\u751f\u6d3b\u548c\u5de5\u4e1a\u5e26\u6765\u66f4\u591a\u4fbf\u5229\u548c\u6548\u76ca\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5fae\u901a\u9053\u70ed\u4ea4\u6362\u5668\u8be6\u89e3\uff1a\u4e86\u89e3\u5fae\u901a\u9053\u70ed\u4ea4\u6362\u5668\u7684\u5de5\u4f5c\u539f\u7406\u3001\u7ed3\u6784\u7279\u70b9\u53ca\u5e94\u7528\u9886\u57df\uff0c\u6df1\u5165\u89e3\u6790\u5176\u5728\u9ad8\u6548\u70ed\u4f20\u5bfc\u4e2d\u7684\u4f18\u52bf\u4e0e\u6280\u672f\u6311\u6218\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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