{"id":753367,"date":"2024-07-30T16:30:43","date_gmt":"2024-07-30T15:30:43","guid":{"rendered":"https:\/\/www.thermal-engineering.org\/?p=753367"},"modified":"2024-07-30T16:30:43","modified_gmt":"2024-07-30T15:30:43","slug":"%e6%b5%81%e4%bd%93%e4%b8%ad%e7%9a%84%e6%96%af%e6%89%98%e7%bd%97%e5%93%88%e5%b0%94%e6%95%b0%e6%98%af%e4%bb%80%e4%b9%88%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/www.thermal-engineering.org\/zh-hans\/%e6%b5%81%e4%bd%93%e4%b8%ad%e7%9a%84%e6%96%af%e6%89%98%e7%bd%97%e5%93%88%e5%b0%94%e6%95%b0%e6%98%af%e4%bb%80%e4%b9%88%ef%bc%9f\/","title":{"rendered":"\u6d41\u4f53\u4e2d\u7684\u65af\u6258\u7f57\u54c8\u5c14\u6570\u662f\u4ec0\u4e48\uff1f"},"content":{"rendered":"<p class=\"sidekick\">\u65af\u6258\u7f57\u54c8\u5c14\u6570\u5728\u6d41\u4f53\u529b\u5b66\u4e2d\u8861\u91cf\u65e0\u91cf\u7eb2\u632f\u8361\u9891\u7387\uff0c\u662f\u5206\u6790\u975e\u5b9a\u5e38\u6d41\u52a8\u7684\u91cd\u8981\u53c2\u6570\uff0c\u5bf9\u4e8e\u5de5\u7a0b\u8bbe\u8ba1\u548c\u7814\u7a76\u81f3\u5173\u91cd\u8981\u3002<\/p>\n<p><img src=\"https:\/\/www.thermal-engineering.org\/wp-content\/uploads\/2024\/07\/\u6d41\u4f53\u4e2d\u7684\u65af\u6258\u7f57\u54c8\u5c14\u6570\u662f\u4ec0\u4e48.png\" alt=\"\u6d41\u4f53\u4e2d\u7684\u65af\u6258\u7f57\u54c8\u5c14\u6570\u662f\u4ec0\u4e48\uff1f\" style=\"display: block; margin-left: auto; margin-right: auto;\"\/><\/p>\n<h2>\u6d41\u4f53\u4e2d\u7684\u65af\u6258\u7f57\u54c8\u5c14\u6570\u662f\u4ec0\u4e48\uff1f<\/h2>\n<p>\u5728\u70ed\u5de5\u5b66\u548c\u6d41\u4f53\u529b\u5b66\u4e2d\uff0c\u65af\u6258\u7f57\u54c8\u5c14\u6570\uff08Strouhal number\uff0c\u901a\u5e38\u7528St\u8868\u793a\uff09\u662f\u4e00\u4e2a\u7528\u6765\u63cf\u8ff0\u5468\u671f\u632f\u52a8\u6d41\u52a8\u7684\u4e00\u79cd\u65e0\u91cf\u7eb2\u6570\u3002\u8fd9\u4e00\u6570\u5b57\u5bf9\u4e8e\u5206\u6790\u975e\u5b9a\u5e38\u6d41\u52a8\uff08\u4f8b\u5982\u6da1\u6d41\u3001\u58f0\u6ce2\u6216\u632f\u52a8\u6d41\u52a8\uff09\u5177\u6709\u91cd\u8981\u610f\u4e49\u3002<\/p>\n<h2>\u65af\u6258\u7f57\u54c8\u5c14\u6570\u7684\u5b9a\u4e49<\/h2>\n<p>\u65af\u6258\u7f57\u54c8\u5c14\u6570\u7684\u8868\u8fbe\u5f0f\u4e3a\uff1a<\/p>\n<p><strong>St = \\frac{fL}{V}<\/strong><\/p>\n<p>\u5176\u4e2d\uff1a<\/p>\n<ul>\n<li>f: \u632f\u52a8\u6216\u6ce2\u52a8\u7684\u9891\u7387\uff08\u5355\u4f4d\uff1a\u8d6b\u5179\uff0cHz)<\/li>\n<li>L: \u4ee3\u8868\u7279\u5f81\u957f\u5ea6\u7684\u7269\u7406\u91cf\uff08\u5355\u4f4d\uff1a\u7c73\uff0cm\uff09<\/li>\n<li>V: \u6d41\u4f53\u7684\u7279\u5f81\u901f\u5ea6\uff08\u5355\u4f4d\uff1a\u7c73\u6bcf\u79d2\uff0cm\/s\uff09<\/li>\n<\/ul>\n<p>\u7b80\u800c\u8a00\u4e4b\uff0c\u65af\u6258\u7f57\u54c8\u5c14\u6570\u8868\u793a\u7279\u5f81\u65f6\u95f4\u5c3a\u5ea6\u548c\u5468\u671f\u65f6\u95f4\u5c3a\u5ea6\u4e4b\u95f4\u7684\u6bd4\u503c\u3002<\/p>\n<h2>\u5e94\u7528\u9886\u57df<\/h2>\n<p>\u65af\u6258\u7f57\u54c8\u5c14\u6570\u5e94\u7528\u5e7f\u6cdb\uff0c\u5c24\u5176\u5728\u4ee5\u4e0b\u9886\u57df\u4e2d\uff1a<\/p>\n<ul>\n<li><strong>\u822a\u7a7a\u5de5\u7a0b\uff1a<\/strong>\u7528\u4e8e\u5206\u6790\u98de\u673a\u7ffc\u578b\u7684\u632f\u52a8\u7279\u6027\uff0c\u9884\u6d4b\u4e0e\u9632\u6b62\u98a4\u632f\u73b0\u8c61\u3002<\/li>\n<li><strong>\u58f0\u5b66\uff1a<\/strong>\u5206\u6790\u7269\u4f53\u5728\u6d41\u4f53\u4e2d\u7684\u566a\u58f0\u751f\u6210\uff0c\u6bd4\u5982\u6c7d\u8f66\u548c\u98ce\u529b\u6da1\u8f6e\u673a\u7b49\u3002<\/li>\n<li><strong>\u751f\u7269\u529b\u5b66\uff1a<\/strong>\u7814\u7a76\u9c7c\u7c7b\u6e38\u52a8\u548c\u9e1f\u7c7b\u98de\u884c\u7684\u6d41\u4f53\u52a8\u529b\u5b66\u7279\u6027\u3002<\/li>\n<\/ul>\n<h2>\u65af\u6258\u7f57\u54c8\u5c14\u6570\u7684\u7269\u7406\u610f\u4e49<\/h2>\n<p>\u65af\u6258\u7f57\u54c8\u5c14\u6570\u7684\u7269\u7406\u610f\u4e49\u5728\u4e0d\u540c\u7684\u6d41\u52a8\u60c5\u51b5\u4e0b\u4f1a\u5c55\u73b0\u51fa\u4e0d\u540c\u7684\u7279\u5f81\u3002\u4f8b\u5982\uff1a<\/p>\n<ol>\n<li>\u5bf9\u4e8e\u5c0f\u65af\u6258\u7f57\u54c8\u5c14\u6570\uff08St < 0.1\uff09\uff0c\u6d41\u4f53\u7684\u7c98\u6027\u529b\u5360\u4e3b\u5bfc\u5730\u4f4d\uff0c\u6d41\u52a8\u66f4\u52a0\u7a33\u5b9a\u3002<\/li>\n<li>\u5bf9\u4e8e\u4e2d\u7b49\u65af\u6258\u7f57\u54c8\u5c14\u6570\uff080.1 \u2264 St \u2264 1\uff09\uff0c\u6d41\u4f53\u52a8\u529b\u5b66\u884c\u4e3a\u663e\u793a\u51fa\u590d\u6742\u7684\u6da1\u6d41\u7ed3\u6784\u3002<\/li>\n<li>\u5bf9\u4e8e\u5927\u65af\u6258\u7f57\u54c8\u5c14\u6570\uff08St > 1\uff09\uff0c\u60ef\u6027\u529b\u548c\u975e\u5b9a\u5e38\u6548\u5e94\u53d8\u5f97\u663e\u8457\uff0c\u5e38\u89c1\u4e8e\u9ad8\u9891\u632f\u52a8\u7cfb\u7edf\u4e2d\u3002<\/li>\n<\/ol>\n<h2>\u603b\u7ed3<\/h2>\n<p>\u65af\u6258\u7f57\u54c8\u5c14\u6570\u662f\u4e00\u4e2a\u91cd\u8981\u7684\u65e0\u91cf\u7eb2\u6570\uff0c\u7528\u4e8e\u63cf\u8ff0\u6d41\u4f53\u4e2d\u5468\u671f\u632f\u52a8\u73b0\u8c61\u3002\u5b83\u5728\u8bb8\u591a\u5de5\u7a0b\u548c\u79d1\u5b66\u9886\u57df\u4e2d\u662f\u4e0d\u53ef\u6216\u7f3a\u7684\u5de5\u5177\uff0c\u6709\u52a9\u4e8e\u7406\u89e3\u6d41\u4f53\u4e2d\u7684\u590d\u6742\u52a8\u6001\u884c\u4e3a\u3002<\/p>\n<p>\u901a\u8fc7\u65af\u6258\u7f57\u54c8\u5c14\u6570\uff0c\u5de5\u7a0b\u5e08\u548c\u79d1\u5b66\u5bb6\u53ef\u4ee5\u66f4\u597d\u5730\u8bbe\u8ba1\u548c\u4f18\u5316\u6d89\u53ca\u5468\u671f\u6027\u6d41\u52a8\u7684\u7cfb\u7edf\u548c\u8bbe\u5907\uff0c\u63d0\u9ad8\u5b83\u4eec\u7684\u6027\u80fd\u548c\u5b89\u5168\u6027\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u65af\u6258\u7f57\u54c8\u5c14\u6570\u5728\u6d41\u4f53\u529b\u5b66\u4e2d\u8861\u91cf\u65e0\u91cf\u7eb2\u632f\u8361\u9891\u7387\uff0c\u662f\u5206\u6790\u975e\u5b9a\u5e38\u6d41\u52a8\u7684\u91cd\u8981\u53c2\u6570\uff0c\u5bf9\u4e8e\u5de5\u7a0b\u8bbe\u8ba1\u548c\u7814\u7a76\u81f3\u5173\u91cd\u8981\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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