{"id":753025,"date":"2024-11-25T09:45:26","date_gmt":"2024-11-25T08:45:26","guid":{"rendered":"https:\/\/www.thermal-engineering.org\/?p=753025"},"modified":"2024-11-25T09:45:26","modified_gmt":"2024-11-25T08:45:26","slug":"%e6%b5%81%e4%bd%93%e4%b8%ad%e6%b6%a1%e6%97%8b%e8%84%b1%e8%90%bd%e7%9a%84%e5%8e%9f%e7%90%86","status":"publish","type":"post","link":"https:\/\/www.thermal-engineering.org\/zh-hans\/%e6%b5%81%e4%bd%93%e4%b8%ad%e6%b6%a1%e6%97%8b%e8%84%b1%e8%90%bd%e7%9a%84%e5%8e%9f%e7%90%86\/","title":{"rendered":"\u6d41\u4f53\u4e2d\u6da1\u65cb\u8131\u843d\u7684\u539f\u7406"},"content":{"rendered":"<p class=\"sidekick\">\u5173\u952e\u8bcd\uff1a\u6d41\u4f53\u4e2d\u6da1\u65cb\u8131\u843d\u7684\u539f\u7406\u3002\u4e86\u89e3\u6da1\u65cb\u8131\u843d\u73b0\u8c61\u5982\u4f55\u5728\u4e0d\u540c\u6d41\u4f53\u4e2d\u53d1\u751f\u53ca\u5176\u5bf9\u70ed\u5de5\u7a0b\u5f71\u54cd\uff0c\u4e3a\u8bfb\u8005\u63ed\u5f00\u8fd9\u4e00\u91cd\u8981\u7269\u7406\u8fc7\u7a0b\u7684\u5965\u79d8\u3002<\/p>\n<p><img src=\"https:\/\/www.thermal-engineering.org\/wp-content\/uploads\/2024\/07\/\u6d41\u4f53\u4e2d\u6da1\u65cb\u8131\u843d\u7684\u539f\u7406.png\" alt=\"\u6d41\u4f53\u4e2d\u6da1\u65cb\u8131\u843d\u7684\u539f\u7406\" style=\"display: block; margin-left: auto; margin-right: auto;\"\/><\/p>\n<h2>\u6d41\u4f53\u4e2d\u6da1\u65cb\u8131\u843d\u7684\u539f\u7406<\/h2>\n<p>\u6da1\u65cb\u8131\u843d\uff08Vortex Shedding\uff09\u662f\u6d41\u4f53\u8fd0\u52a8\u4e2d\u7684\u4e00\u79cd\u73b0\u8c61\uff0c\u901a\u5e38\u53d1\u751f\u5728\u6d41\u4f53\u7ed5\u8fc7\u7269\u4f53\u65f6\u3002\u8fd9\u4e2a\u73b0\u8c61\u5728\u5de5\u7a0b\u548c\u7269\u7406\u5b66\u4e2d\u6709\u7740\u91cd\u8981\u7684\u5e94\u7528\uff0c\u4f8b\u5982\u5728\u822a\u7a7a\u3001\u5efa\u7b51\u548c\u673a\u68b0\u7b49\u9886\u57df\u4e2d\u3002\u672c\u6587\u5c06\u4ecb\u7ecd\u6da1\u65cb\u8131\u843d\u7684\u57fa\u672c\u539f\u7406\u53ca\u5176\u5e94\u7528\u3002<\/p>\n<h2>\u6da1\u65cb\u8131\u843d\u7684\u5f62\u6210<\/h2>\n<p>\u5f53\u6d41\u4f53\uff08\u5982\u7a7a\u6c14\u6216\u6c34\uff09\u7ed5\u8fc7\u4e00\u4e2a\u7269\u4f53\uff08\u5982\u5706\u67f1\u4f53\u6216\u5e73\u677f\uff09\u65f6\uff0c\u7531\u4e8e\u7269\u4f53\u5728\u6d41\u4f53\u4e2d\u7684\u963b\u6321\u4f5c\u7528\uff0c\u6d41\u4f53\u7684\u6d41\u52a8\u4f1a\u53d7\u5230\u5e72\u6270\u3002\u5728\u7279\u5b9a\u7684\u6761\u4ef6\u4e0b\uff0c\u8fd9\u79cd\u5e72\u6270\u4f1a\u5bfc\u81f4\u6d41\u4f53\u7684\u5206\u79bb\uff0c\u5f62\u6210\u4ea4\u66ff\u51fa\u73b0\u7684\u65cb\u6da1\u3002\u8fd9\u4e9b\u65cb\u6da1\u5728\u7269\u4f53\u7684\u4e24\u4fa7\u4ea4\u66ff\u5f62\u6210\u5e76\u8131\u843d\uff0c\u79f0\u4e3a\u5361\u95e8\u6da1\u8857\uff08von K\u00e1rm\u00e1n vortex street\uff09\u3002<\/p>\n<h2>\u4e3b\u8981\u5f71\u54cd\u56e0\u7d20<\/h2>\n<p>\u6da1\u65cb\u8131\u843d\u7684\u53d1\u751f\u548c\u7279\u6027\u53d7\u591a\u79cd\u56e0\u7d20\u5f71\u54cd\uff0c\u5305\u62ec\u6d41\u4f53\u901f\u5ea6\u3001\u7269\u4f53\u51e0\u4f55\u5f62\u72b6\u548c\u96f7\u8bfa\u6570\uff08Reynolds number\uff09\u3002<\/p>\n<p><u1><\/p>\n<li>\u6d41\u4f53\u901f\u5ea6\uff1a\u6d41\u4f53\u901f\u5ea6\u589e\u52a0\u4f1a\u5f3a\u5316\u6da1\u65cb\u7684\u5f62\u6210\u53ca\u8131\u843d\u9891\u7387\u3002<\/li>\n<li>\u7269\u4f53\u51e0\u4f55\u5f62\u72b6\uff1a\u4e0d\u540c\u5f62\u72b6\u7684\u7269\u4f53\u4f1a\u5f71\u54cd\u6d41\u4f53\u5206\u79bb\u7684\u4f4d\u7f6e\uff0c\u4ece\u800c\u5f71\u54cd\u6da1\u65cb\u7684\u751f\u6210\u548c\u6392\u5217\u3002<\/li>\n<li>\u96f7\u8bfa\u6570\uff1a\u96f7\u8bfa\u6570\u662f\u4e00\u4e2a\u65e0\u91cf\u7eb2\u6570\uff0c\u8868\u793a\u6d41\u4f53\u7684\u60ef\u6027\u529b\u4e0e\u7c98\u6027\u529b\u4e4b\u6bd4\u3002\u5f53\u96f7\u8bfa\u6570\u5728\u7279\u5b9a\u8303\u56f4\u5185\uff08\u901a\u5e38\u572840\u52301000\u4e4b\u95f4\uff09\u65f6\uff0c\u6da1\u65cb\u8131\u843d\u73b0\u8c61\u6700\u4e3a\u660e\u663e\u3002<\/li>\n<p><\/u1><\/p>\n<h2>\u6da1\u65cb\u8131\u843d\u9891\u7387<\/h2>\n<p>\u6da1\u65cb\u8131\u843d\u7684\u9891\u7387\u901a\u5e38\u7528\u65af\u7279\u52b3\u54c8\u5c14\u6570\uff08Strouhal number, St\uff09\u6765\u63cf\u8ff0\uff0c\u5176\u516c\u5f0f\u5982\u4e0b\uff1a<\/p>\n<p>St = \\(\\frac{fL}{V}\\)<\/p>\n<p>\u5176\u4e2d\uff0cf\u662f\u6da1\u65cb\u8131\u843d\u9891\u7387\uff0cL\u662f\u7279\u5f81\u957f\u5ea6\uff08\u5982\u5706\u67f1\u7684\u76f4\u5f84\uff09\uff0cV\u662f\u6d41\u4f53\u901f\u5ea6\u3002\u65af\u7279\u52b3\u54c8\u5c14\u6570\u901a\u5e38\u4e3a\u5e38\u6570\uff0c\u56e0\u6b64\u53ef\u4ee5\u501f\u6b64\u9884\u6d4b\u6da1\u65cb\u8131\u843d\u9891\u7387\u3002<\/p>\n<h2>\u6da1\u65cb\u8131\u843d\u7684\u5e94\u7528<\/h2>\n<p>\u6da1\u65cb\u8131\u843d\u5728\u591a\u4e2a\u9886\u57df\u4e2d\u6709\u7740\u5e7f\u6cdb\u7684\u5e94\u7528\u548c\u5f71\u54cd\uff1a<\/p>\n<p><u1><\/p>\n<li>\u5728\u822a\u7a7a\u548c\u822a\u5929\u5de5\u7a0b\u4e2d\uff0c\u9700\u8003\u8651\u6da1\u65cb\u5bf9\u98de\u884c\u5668\u8868\u9762\u538b\u529b\u5206\u5e03\u548c\u963b\u529b\u7684\u5f71\u54cd\u3002<\/li>\n<li>\u5728\u5efa\u7b51\u5de5\u7a0b\u4e2d\uff0c\u9ad8\u5c42\u5efa\u7b51\u9700\u8bbe\u8ba1\u4ee5\u51cf\u5c11\u56e0\u6da1\u65cb\u8131\u843d\u5f15\u8d77\u7684\u632f\u52a8\u548c\u7ed3\u6784\u5e94\u529b\u3002<\/li>\n<li>\u5728\u6d41\u4f53\u673a\u68b0\u4e2d\uff0c\u5229\u7528\u6da1\u65cb\u8131\u843d\u539f\u7406\u8bbe\u8ba1\u6da1\u6d41\u6d41\u91cf\u8ba1\uff0c\u7cbe\u786e\u6d4b\u91cf\u6d41\u4f53\u6d41\u91cf\u3002<\/li>\n<p><\/u1><\/p>\n<h2>\u7ed3\u8bba<\/h2>\n<p>\u6da1\u65cb\u8131\u843d\u662f\u6d41\u4f53\u529b\u5b66\u4e2d\u4e00\u4e2a\u91cd\u8981\u800c\u6709\u8da3\u7684\u73b0\u8c61\uff0c\u5176\u539f\u7406\u7b80\u5355\u4f46\u5e94\u7528\u5e7f\u6cdb\u3002\u901a\u8fc7\u7406\u89e3\u6da1\u65cb\u8131\u843d\u7684\u5f62\u6210\u673a\u5236\u548c\u5f71\u54cd\u56e0\u7d20\uff0c\u5de5\u7a0b\u5e08\u548c\u79d1\u5b66\u5bb6\u53ef\u4ee5\u66f4\u597d\u5730\u8bbe\u8ba1\u3001\u9884\u6d4b\u548c\u63a7\u5236\u6d41\u4f53\u76f8\u5173\u7684\u5de5\u7a0b\u7cfb\u7edf\u3002<\/p>\n<p>\u66f4\u591a\u8be6\u7ec6\u5185\u5bb9\u548c\u590d\u6742\u516c\u5f0f\uff0c\u8bf7\u53c2\u8003\u76f8\u5173\u4e13\u4e1a\u6587\u732e\u548c\u6559\u6750\uff0c\u4ee5\u83b7\u5f97\u66f4\u6df1\u5165\u7684\u7406\u89e3\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5173\u952e\u8bcd\uff1a\u6d41\u4f53\u4e2d\u6da1\u65cb\u8131\u843d\u7684\u539f\u7406\u3002\u4e86\u89e3\u6da1\u65cb\u8131\u843d\u73b0\u8c61\u5982\u4f55\u5728\u4e0d\u540c\u6d41\u4f53\u4e2d\u53d1\u751f\u53ca\u5176\u5bf9\u70ed\u5de5\u7a0b\u5f71\u54cd\uff0c\u4e3a\u8bfb\u8005\u63ed\u5f00\u8fd9\u4e00\u91cd\u8981\u7269\u7406\u8fc7\u7a0b\u7684\u5965\u79d8\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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