{"id":753006,"date":"2024-11-29T17:21:30","date_gmt":"2024-11-29T16:21:30","guid":{"rendered":"https:\/\/www.thermal-engineering.org\/?p=753006"},"modified":"2024-11-29T17:21:30","modified_gmt":"2024-11-29T16:21:30","slug":"%e4%ba%86%e8%a7%a3%e5%bc%80%e5%b0%94%e6%96%87-%e4%ba%a5%e5%a7%86%e9%9c%8d%e5%85%b9%e4%b8%8d%e7%a8%b3%e5%ae%9a%e6%80%a7","status":"publish","type":"post","link":"https:\/\/www.thermal-engineering.org\/zh-hans\/%e4%ba%86%e8%a7%a3%e5%bc%80%e5%b0%94%e6%96%87-%e4%ba%a5%e5%a7%86%e9%9c%8d%e5%85%b9%e4%b8%8d%e7%a8%b3%e5%ae%9a%e6%80%a7\/","title":{"rendered":"\u4e86\u89e3\u5f00\u5c14\u6587-\u4ea5\u59c6\u970d\u5179\u4e0d\u7a33\u5b9a\u6027"},"content":{"rendered":"<p class=\"sidekick\">\u4e86\u89e3\u5f00\u5c14\u6587-\u4ea5\u59c6\u970d\u5179\u4e0d\u7a33\u5b9a\u6027\uff1a\u89e3\u91ca\u5176\u5728\u6d41\u4f53\u52a8\u529b\u5b66\u4e2d\u7684\u57fa\u672c\u6982\u5ff5\u548c\u5e94\u7528\uff0c\u63ed\u793a\u4e24\u79cd\u6d41\u4f53\u754c\u9762\u4e0a\u526a\u5207\u6d41\u52a8\u5f15\u53d1\u7684\u4e0d\u7a33\u5b9a\u73b0\u8c61\u53ca\u5176\u5de5\u7a0b\u610f\u4e49\u3002<\/p>\n<p><img src=\"https:\/\/www.thermal-engineering.org\/wp-content\/uploads\/2024\/07\/\u4e86\u89e3\u5f00\u5c14\u6587-\u4ea5\u59c6\u970d\u5179\u4e0d\u7a33\u5b9a\u6027.png\" alt=\"\u4e86\u89e3\u5f00\u5c14\u6587-\u4ea5\u59c6\u970d\u5179\u4e0d\u7a33\u5b9a\u6027\" style=\"display: block; margin-left: auto; margin-right: auto;\"\/><\/p>\n<h2>\u4e86\u89e3\u5f00\u5c14\u6587-\u4ea5\u59c6\u970d\u5179\u4e0d\u7a33\u5b9a\u6027<\/h2>\n<p>\u5f00\u5c14\u6587-\u4ea5\u59c6\u970d\u5179\u4e0d\u7a33\u5b9a\u6027\uff08Kelvin-Helmholtz Instability\uff09\u662f\u4e00\u79cd\u51fa\u73b0\u5728\u6d41\u4f53\u529b\u5b66\u4e2d\u7684\u73b0\u8c61\u3002\u5f53\u4e24\u79cd\u4e0d\u540c\u5bc6\u5ea6\u7684\u6db2\u4f53\u6216\u6c14\u4f53\u5728\u754c\u9762\u5904\u9ad8\u901f\u6ed1\u52a8\u65f6\uff0c\u8fd9\u79cd\u4e0d\u7a33\u5b9a\u6027\u4f1a\u5bfc\u81f4\u754c\u9762\u7684\u6270\u52a8\u548c\u6ce2\u52a8\u3002\u8fd9\u4e00\u73b0\u8c61\u7684\u7406\u89e3\u5bf9\u4e8e\u8bb8\u591a\u79d1\u5b66\u548c\u5de5\u7a0b\u9886\u57df\u90fd\u6709\u91cd\u8981\u610f\u4e49\uff0c\u5305\u62ec\u6c14\u8c61\u5b66\u3001\u6d77\u6d0b\u5b66\u4ee5\u53ca\u822a\u7a7a\u822a\u5929\u5de5\u7a0b\u3002<\/p>\n<h2>\u57fa\u672c\u539f\u7406<\/h2>\n<p>\u5f00\u5c14\u6587-\u4ea5\u59c6\u970d\u5179\u4e0d\u7a33\u5b9a\u6027\u7684\u57fa\u672c\u539f\u7406\u53ef\u4ee5\u901a\u8fc7\u4e00\u4e2a\u7b80\u5355\u7684\u4f8b\u5b50\u6765\u89e3\u91ca\u3002\u5047\u8bbe\u6709\u4e24\u5c42\u6d41\u4f53\uff0c\u4e0a\u4e0b\u4e24\u5c42\u6d41\u4f53\u4ee5\u4e0d\u540c\u7684\u901f\u5ea6\u6d41\u52a8\u3002\u8fd9\u79cd\u901f\u5ea6\u5dee\u5f02\u9020\u6210\u4e86\u754c\u9762\u7684\u538b\u529b\u53d8\u5316\uff0c\u8fdb\u800c\u5f15\u53d1\u4e86\u6ce2\u52a8\u3002\u8fd9\u79cd\u6ce2\u52a8\u5982\u679c\u5f97\u5230\u7ee7\u7eed\u53d1\u5c55\uff0c\u4f1a\u4ea7\u751f\u6da1\u6d41\uff0c\u5bfc\u81f4\u6d41\u4f53\u7684\u6df7\u5408\u3002<\/p>\n<h2>\u6570\u5b66\u8868\u8fbe<\/h2>\n<p>\u5f00\u5c14\u6587-\u4ea5\u59c6\u970d\u5179\u4e0d\u7a33\u5b9a\u6027\u7684\u6570\u5b66\u8868\u8fbe\u6bd4\u8f83\u590d\u6742\uff0c\u4e00\u822c\u4f7f\u7528\u901f\u5ea6\u526a\u5207\uff08velocity shear\uff09\u548c\u8868\u9762\u5f20\u529b\uff08surface tension\uff09\u7b49\u53c2\u6570\u6765\u63cf\u8ff0\u3002\u5982\u679c\u8003\u8651\u65e0\u7c98\u6d41\u4f53\u7684\u7406\u60f3\u60c5\u51b5\uff0c\u4e0d\u7a33\u5b9a\u6027\u7684\u521d\u59cb\u589e\u957f\u7387 \\(\\gamma\\) \u53ef\u8868\u793a\u4e3a\uff1a<\/p>\n<p>\\[<br \/>\n\\gamma = \\sqrt{(k \\Delta U)^2 &#8211; (k^2 (\\rho_1 + \\rho_2) g)\/(k (\\rho_1 &#8211; \\rho_2))}<br \/>\n\\]\n<p>\u5176\u4e2d\uff1a<\/p>\n<ul>\n<li>\\(k\\) \u4e3a\u6ce2\u6570\uff08wave number\uff09<\/li>\n<li>\\(\\Delta U\\) \u4e3a\u4e24\u5c42\u6d41\u4f53\u4e4b\u95f4\u7684\u901f\u5ea6\u5dee<\/li>\n<li>\\(\\rho_1\\) \u548c \\(\\rho_2\\) \u4e3a\u4e24\u5c42\u6d41\u4f53\u7684\u5bc6\u5ea6<\/li>\n<li>\\(g\\) 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