{"id":738366,"date":"2024-09-02T02:02:25","date_gmt":"2024-09-02T01:02:25","guid":{"rendered":"https:\/\/www.thermal-engineering.org\/?p=738366"},"modified":"2024-09-02T02:02:25","modified_gmt":"2024-09-02T01:02:25","slug":"%e8%ae%a1%e7%ae%97%e6%b5%81%e4%bd%93%e5%8a%9b%e5%ad%a6%e4%b8%ad%e7%9a%84%e6%b9%8d%e6%b5%81%e5%bb%ba%e6%a8%a1","status":"publish","type":"post","link":"https:\/\/www.thermal-engineering.org\/zh-hans\/%e8%ae%a1%e7%ae%97%e6%b5%81%e4%bd%93%e5%8a%9b%e5%ad%a6%e4%b8%ad%e7%9a%84%e6%b9%8d%e6%b5%81%e5%bb%ba%e6%a8%a1\/","title":{"rendered":"\u8ba1\u7b97\u6d41\u4f53\u529b\u5b66\u4e2d\u7684\u6e4d\u6d41\u5efa\u6a21"},"content":{"rendered":"

\u8ba1\u7b97\u6d41\u4f53\u529b\u5b66\u4e2d\u7684\u6e4d\u6d41\u5efa\u6a21\uff1a\u4e86\u89e3\u6e4d\u6d41\u73b0\u8c61\u7684\u6a21\u62df\u65b9\u6cd5\u53ca\u5176\u5728\u5de5\u7a0b\u8bbe\u8ba1\u4e2d\u7684\u5e94\u7528\uff0c\u6df1\u5165\u638c\u63e1\u5173\u952e\u6a21\u578b\u548c\u6280\u672f\u3002<\/p>\n

\"\u8ba1\u7b97\u6d41\u4f53\u529b\u5b66\u4e2d\u7684\u6e4d\u6d41\u5efa\u6a21\"<\/p>\n

\u8ba1\u7b97\u6d41\u4f53\u529b\u5b66\u4e2d\u7684\u6e4d\u6d41\u5efa\u6a21<\/h2>\n

\u5728\u8ba1\u7b97\u6d41\u4f53\u529b\u5b66\uff08Computational Fluid Dynamics, CFD\uff09\u4e2d\uff0c\u6e4d\u6d41\u5efa\u6a21\u662f\u4e00\u4e2a\u91cd\u8981\u548c\u590d\u6742\u7684\u9886\u57df\u3002\u6e4d\u6d41\u662f\u6307\u6d41\u4f53\u8fd0\u52a8\u5728\u9ad8\u96f7\u8bfa\u6570\u60c5\u51b5\u4e0b\u7684\u4e0d\u53ef\u9884\u6d4b\u548c\u6df7\u4e71\u73b0\u8c61\u3002\u5728\u5de5\u7a0b\u548c\u7269\u7406\u5b66\u4e2d\uff0c\u51c6\u786e\u5730\u6a21\u62df\u6e4d\u6d41\u5bf9\u8bbe\u8ba1\u548c\u5206\u6790\u6d41\u4f53\u7cfb\u7edf\u81f3\u5173\u91cd\u8981\u3002\u4f8b\u5982\uff0c\u822a\u7a7a\u5668\u7684\u7a7a\u6c14\u52a8\u529b\u5b66\u7279\u6027\u3001\u6c7d\u8f66\u7684\u6c14\u52a8\u963b\u529b\u548c\u5de5\u4e1a\u6d41\u7a0b\u4e2d\u7684\u6d41\u4f53\u884c\u4e3a\uff0c\u90fd\u6d89\u53ca\u6e4d\u6d41\u73b0\u8c61\u3002<\/p>\n

\u6e4d\u6d41\u7684\u57fa\u672c\u7279\u6027<\/h2>\n

<\/p>\n

  • \u7d0a\u4e71\u6027\uff1a\u6e4d\u6d41\u6d41\u52a8\u4e2d\u6d41\u4f53\u7c92\u5b50\u7684\u901f\u5ea6\u548c\u538b\u529b\u5747\u5448\u968f\u673a\u6027\u53d8\u5316\u3002<\/li>\n
  • \u8017\u6563\u6027\uff1a\u6e4d\u6d41\u80fd\u91cf\u9010\u6e10\u8f6c\u5316\u4e3a\u5185\u90e8\u80fd\u91cf\uff0c\u5bfc\u81f4\u52a8\u80fd\u7684\u635f\u5931\u3002<\/li>\n
  • \u5c3a\u5ea6\u6027\uff1a\u6e4d\u6d41\u5305\u542b\u4ece\u5927\u5c3a\u5ea6\u7684\u80fd\u91cf\u6ce8\u5165\u5230\u5c0f\u5c3a\u5ea6\u7684\u80fd\u91cf\u8017\u6563\u3002<\/li>\n

    <\/u1><\/p>\n

    \u6e4d\u6d41\u5efa\u6a21\u65b9\u6cd5<\/h2>\n

    \u7531\u4e8e\u76f4\u63a5\u6570\u503c\u6a21\u62df\uff08Direct Numerical Simulation, DNS\uff09\u9700\u8981\u6781\u9ad8\u7684\u8ba1\u7b97\u8d44\u6e90\uff0c\u5b9e\u9645\u5de5\u7a0b\u4e2d\u901a\u5e38\u91c7\u7528\u5982\u4e0b\u51e0\u79cd\u6e4d\u6d41\u5efa\u6a21\u65b9\u6cd5\uff1a<\/p>\n

    \u96f7\u8bfa\u5e73\u5747\u7eb3\u7ef4-\u65af\u6258\u514b\u65af\u65b9\u7a0b\uff08RANS\uff09<\/h3>\n

    \u96f7\u8bfa\u5e73\u5747\u7eb3\u7ef4-\u65af\u6258\u514b\u65af\u65b9\u7a0b\u57fa\u4e8e\u5c06\u77ac\u65f6\u6d41\u52a8\u53d8\u91cf\u5206\u89e3\u4e3a\u5e73\u5747\u503c\u548c\u7d0a\u52a8\u5206\u91cf\uff1a<\/p>\n

    u_i = \\overline{u_i} + u’_i<\/p>\n

    \u7136\u540e\uff0c\u901a\u8fc7\u6c42\u89e3\u5e73\u5747\u65b9\u7a0b\u6765\u6a21\u62df\u6e4d\u6d41\u3002RANS\u6a21\u578b\u5f80\u5f80\u7ed3\u5408\u6da1\u7c98\u6a21\u578b\uff0c\u5982k-\u03b5\u6a21\u578b\u548ck-\u03c9\u6a21\u578b\u3002<\/p>\n

    \u5927\u6da1\u6a21\u62df\uff08LES\uff09<\/h3>\n

    \u5927\u6da1\u6a21\u62df\u57fa\u4e8e\u5c06\u6d41\u52a8\u5206\u89e3\u4e3a\u5927\u5c3a\u5ea6\u548c\u5c0f\u5c3a\u5ea6\u6da1\u7ed3\u6784\u3002\u5927\u5c3a\u5ea6\u6da1\u76f4\u63a5\u6a21\u62df\uff0c\u800c\u5c0f\u5c3a\u5ea6\u6da1\u91c7\u7528\u4e9a\u683c\u5b50\u5c3a\u5ea6\u6a21\u578b\uff08Sub-grid Scale Model, SGS\uff09\u6765\u8868\u793a\uff1a<\/p>\n

    u_i = \\overline{u_i} + u_i^’<\/p>\n

    Les\u6a21\u578b\u76f8\u6bd4RANS\u6a21\u578b\u66f4\u51c6\u786e\uff0c\u4f46\u8ba1\u7b97\u6210\u672c\u66f4\u9ad8\u3002<\/p>\n

    \u76f4\u63a5\u6570\u503c\u6a21\u62df\uff08DNS\uff09<\/h3>\n

    DNS\u65b9\u6cd5\u5b8c\u5168\u6c42\u89e3\u7eb3\u7ef4-\u65af\u6258\u514b\u65af\u65b9\u7a0b\uff0c\u4e0d\u5bf9\u6e4d\u6d41\u8fdb\u884c\u4efb\u4f55\u5efa\u6a21\u3002\u5176\u8ba1\u7b97\u8d44\u6e90\u8981\u6c42\u6781\u4e3a\u9ad8\uff0c\u56e0\u6b64\u4ec5\u9002\u7528\u4e8e\u96f7\u8bfa\u6570\u8f83\u4f4e\u7684\u5c0f\u89c4\u6a21\u95ee\u9898\u3002<\/p>\n

    \u6e4d\u6d41\u6a21\u578b\u7684\u5e94\u7528<\/h2>\n

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    <\/p>\n

  • \u822a\u7a7a\u822a\u5929\uff1a\u673a\u7ffc\u8bbe\u8ba1\u548c\u4f18\u5316\u3002<\/li>\n
  • \u6c7d\u8f66\u5de5\u4e1a\uff1a\u63d0\u9ad8\u8f66\u8f86\u7684\u7a7a\u6c14\u52a8\u529b\u5b66\u6027\u80fd\u3002<\/li>\n
  • \u77f3\u6cb9\u4e0e\u5929\u7136\u6c14\uff1a\u7ba1\u9053\u548c\u8bbe\u5907\u4e2d\u7684\u6d41\u4f53\u52a8\u529b\u5b66\u5206\u6790\u3002<\/li>\n
  • \u5efa\u7b51\u5de5\u7a0b\uff1a\u7814\u7a76\u5efa\u7b51\u7269\u5468\u56f4\u7684\u98ce\u573a\u548c\u6c61\u67d3\u7269\u6269\u6563\u3002<\/li>\n

    <\/o1><\/p>\n

    \u603b\u7ed3<\/h2>\n

    \u6e4d\u6d41\u5efa\u6a21\u662f\u8ba1\u7b97\u6d41\u4f53\u529b\u5b66\u4e2d\u7684\u4e00\u4e2a\u5173\u952e\u9886\u57df\uff0c\u6d89\u53ca\u5230\u590d\u6742\u7684\u6570\u5b66\u6a21\u578b\u548c\u5927\u91cf\u7684\u8ba1\u7b97\u8d44\u6e90\u3002\u867d\u7136\u76f4\u63a5\u6570\u503c\u6a21\u62df\u63d0\u4f9b\u4e86\u6700\u51c6\u786e\u7684\u7ed3\u679c\uff0c\u4f46\u5176\u9ad8\u6602\u7684\u8ba1\u7b97\u6210\u672c\u4f7f\u5176\u5728\u5de5\u7a0b\u5b9e\u9645\u4e2d\u4e0d\u5e38\u4f7f\u7528\u3002\u96f7\u8bfa\u5e73\u5747\u6cd5\uff08RANS\uff09\u548c\u5927\u6da1\u6a21\u62df\uff08LES\uff09\u5219\u5728\u5de5\u7a0b\u4e2d\u5f97\u5230\u4e86\u66f4\u5e7f\u6cdb\u7684\u5e94\u7528\u3002\u8fd9\u4e9b\u6e4d\u6d41\u6a21\u578b\u7684\u4e0d\u65ad\u53d1\u5c55\u548c\u4f18\u5316\uff0c\u4e3a\u5404\u7c7b\u5de5\u7a0b\u95ee\u9898\u7684\u89e3\u51b3\u63d0\u4f9b\u4e86\u5f3a\u5927\u7684\u5de5\u5177\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

    \u8ba1\u7b97\u6d41\u4f53\u529b\u5b66\u4e2d\u7684\u6e4d\u6d41\u5efa\u6a21\uff1a\u4e86\u89e3\u6e4d\u6d41\u73b0\u8c61\u7684\u6a21\u62df\u65b9\u6cd5\u53ca\u5176\u5728\u5de5\u7a0b\u8bbe\u8ba1\u4e2d\u7684\u5e94\u7528\uff0c\u6df1\u5165\u638c\u63e1\u5173\u952e\u6a21\u578b\u548c\u6280\u672f\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":"\n\u8ba1\u7b97\u6d41\u4f53\u529b\u5b66\u4e2d\u7684\u6e4d\u6d41\u5efa\u6a21<\/title>\n<meta name=\"description\" content=\"\u8ba1\u7b97\u6d41\u4f53\u529b\u5b66\u4e2d\u7684\u6e4d\u6d41\u5efa\u6a21\uff1a\u4e86\u89e3\u6e4d\u6d41\u73b0\u8c61\u7684\u6a21\u62df\u65b9\u6cd5\u53ca\u5176\u5728\u5de5\u7a0b\u8bbe\u8ba1\u4e2d\u7684\u5e94\u7528\uff0c\u6df1\u5165\u638c\u63e1\u5173\u952e\u6a21\u578b\u548c\u6280\u672f\u3002\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, 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