{"id":416180,"date":"2024-06-28T06:48:12","date_gmt":"2024-06-28T05:48:12","guid":{"rendered":"https:\/\/www.thermal-engineering.org\/%e8%a8%88%e7%ae%97%e6%b5%81%e4%bd%93%e5%8a%9b%e5%ad%a6%e3%81%ae%e5%9f%ba%e7%a4%8e\/"},"modified":"2024-06-28T06:48:12","modified_gmt":"2024-06-28T05:48:12","slug":"%e8%a8%88%e7%ae%97%e6%b5%81%e4%bd%93%e5%8a%9b%e5%ad%a6%e3%81%ae%e5%9f%ba%e7%a4%8e","status":"publish","type":"post","link":"https:\/\/www.thermal-engineering.org\/ja\/%e8%a8%88%e7%ae%97%e6%b5%81%e4%bd%93%e5%8a%9b%e5%ad%a6%e3%81%ae%e5%9f%ba%e7%a4%8e\/","title":{"rendered":"\u8a08\u7b97\u6d41\u4f53\u529b\u5b66\u306e\u57fa\u790e"},"content":{"rendered":"<p class=\"sidekick\">\u8a08\u7b97\u6d41\u4f53\u529b\u5b66\uff08CFD\uff09\u306f\u3001\u30b3\u30f3\u30d4\u30e5\u30fc\u30bf\u3092\u7528\u3044\u3066\u6d41\u4f53\u306e\u6319\u52d5\u3092\u6570\u5024\u30b7\u30df\u30e5\u30ec\u30fc\u30b7\u30e7\u30f3\u3057\u3001\u822a\u7a7a\u5de5\u5b66\u3084\u81ea\u52d5\u8eca\u5de5\u5b66\u306a\u3069\u3067\u5e83\u304f\u5fdc\u7528\u3055\u308c\u308b\u6280\u8853\u3067\u3059\u3002<\/p>\n<p><img src=\"https:\/\/www.thermal-engineering.org\/wp-content\/uploads\/2024\/06\/\u8a08\u7b97\u6d41\u4f53\u529b\u5b66\u306e\u57fa\u790e.png\" alt=\"\u8a08\u7b97\u6d41\u4f53\u529b\u5b66\u306e\u57fa\u790e\" style=\"display: block; margin-left: auto; margin-right: auto;\"\/><\/p>\n<h2>\u8a08\u7b97\u6d41\u4f53\u529b\u5b66\u306e\u57fa\u790e<\/h2>\n<p>\u8a08\u7b97\u6d41\u4f53\u529b\u5b66\uff08CFD: Computational Fluid Dynamics\uff09\u306f\u3001\u30b3\u30f3\u30d4\u30e5\u30fc\u30bf\u3092\u7528\u3044\u3066\u6d41\u4f53\u306e\u6319\u52d5\u3092\u6570\u5024\u30b7\u30df\u30e5\u30ec\u30fc\u30b7\u30e7\u30f3\u3059\u308b\u6280\u8853\u3067\u3059\u3002CFD\u306f\u3001\u822a\u7a7a\u5de5\u5b66\u3001\u81ea\u52d5\u8eca\u5de5\u5b66\u3001\u74b0\u5883\u5de5\u5b66\u3001\u30a8\u30cd\u30eb\u30ae\u30fc\u5de5\u5b66\u306a\u3069\u3001\u3055\u307e\u3056\u307e\u306a\u5de5\u5b66\u5206\u91ce\u3067\u5e83\u304f\u5229\u7528\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<h2>CFD\u306e\u57fa\u672c\u6982\u5ff5<\/h2>\n<p>CFD\u306f\u4e3b\u306b\u6b21\u306e3\u3064\u306e\u30b9\u30c6\u30c3\u30d7\u3067\u69cb\u6210\u3055\u308c\u307e\u3059\uff1a<\/p>\n<p><u1><\/p>\n<li><b>\u524d\u51e6\u7406\uff08Pre-processing\uff09<\/b>: \u554f\u984c\u8a2d\u5b9a\u3001\u30e1\u30c3\u30b7\u30e5\u751f\u6210\u3001\u5883\u754c\u6761\u4ef6\u306e\u5b9a\u7fa9\u306a\u3069\u3002<\/li>\n<li><b>\u6570\u5024\u8a08\u7b97\uff08Solving\uff09<\/b>: \u30ca\u30d3\u30a8-\u30b9\u30c8\u30fc\u30af\u30b9\u65b9\u7a0b\u5f0f\uff08Navier-Stokes equations\uff09\u306a\u3069\u306e\u57fa\u672c\u65b9\u7a0b\u5f0f\u3092\u89e3\u304f\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u306e\u5b9f\u884c\u3002<\/li>\n<li><b>\u5f8c\u51e6\u7406\uff08Post-processing\uff09<\/b>: \u30b7\u30df\u30e5\u30ec\u30fc\u30b7\u30e7\u30f3\u7d50\u679c\u306e\u89e3\u6790\u3068\u8996\u899a\u5316\u3002<\/li>\n<p><\/u1><\/p>\n<h2>\u30ca\u30d3\u30a8-\u30b9\u30c8\u30fc\u30af\u30b9\u65b9\u7a0b\u5f0f<\/h2>\n<p>\u6d41\u4f53\u306e\u6319\u52d5\u3092\u8a18\u8ff0\u3059\u308b\u305f\u3081\u306e\u57fa\u672c\u65b9\u7a0b\u5f0f\u3068\u3057\u3066\u3001\u30ca\u30d3\u30a8-\u30b9\u30c8\u30fc\u30af\u30b9\u65b9\u7a0b\u5f0f\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u308c\u3089\u306f\u4ee5\u4e0b\u306e\u5f62\u3067\u8868\u73fe\u3055\u308c\u307e\u3059\uff1a<\/p>\n<p>\u9023\u7d9a\u306e\u65b9\u7a0b\u5f0f\uff1a<\/p>\n<p>\\[<br \/>\n\\frac{\\partial \\rho}{\\partial t} + \\nabla \\cdot (\\rho \\mathbf{u}) = 0<br \/>\n\\]\n<p>\u904b\u52d5\u91cf\u306e\u65b9\u7a0b\u5f0f\uff1a<\/p>\n<p>\\[<br \/>\n\\frac{\\partial}{\\partial t} (\\rho \\mathbf{u}) + \\nabla \\cdot (\\rho \\mathbf{u} \\mathbf{u}) = -\\nabla p + \\mu \\nabla^2 \\mathbf{u} + \\mathbf{f}<br \/>\n\\]\n<h2>\u30e1\u30c3\u30b7\u30e5\u751f\u6210<\/h2>\n<p>CFD\u306b\u304a\u3044\u3066\u3001\u8a08\u7b97\u9818\u57df\u3092\u7d30\u304b\u3044\u8981\u7d20\u306b\u5206\u5272\u3059\u308b\u3053\u3068\u3092\u30e1\u30c3\u30b7\u30e5\u751f\u6210\u3068\u547c\u3073\u307e\u3059\u3002\u30e1\u30c3\u30b7\u30e5\u306f\u4e09\u89d2\u5f62\u3084\u56db\u89d2\u5f62\u3001\u516d\u9762\u4f53\u306a\u3069\u306e\u5f62\u72b6\u3092\u6301\u3064\u8981\u7d20\u3067\u69cb\u6210\u3055\u308c\u3001\u3053\u308c\u3089\u306e\u8981\u7d20\u3054\u3068\u306b\u6d41\u4f53\u306e\u7269\u7406\u91cf\uff08\u901f\u5ea6\u3001\u5727\u529b\u3001\u6e29\u5ea6\u306a\u3069\uff09\u306e\u6570\u5024\u3092\u8a08\u7b97\u3057\u307e\u3059\u3002\u7d30\u304b\u3044\u30e1\u30c3\u30b7\u30e5\u3092\u4f7f\u7528\u3059\u308b\u3053\u3068\u3067\u3001\u3088\u308a\u6b63\u78ba\u306a\u30b7\u30df\u30e5\u30ec\u30fc\u30b7\u30e7\u30f3\u7d50\u679c\u304c\u5f97\u3089\u308c\u307e\u3059\u304c\u3001\u8a08\u7b97\u30b3\u30b9\u30c8\u304c\u5897\u5927\u3057\u307e\u3059\u3002<\/p>\n<h2>\u5883\u754c\u6761\u4ef6<\/h2>\n<p>\u6d41\u4f53\u30b7\u30df\u30e5\u30ec\u30fc\u30b7\u30e7\u30f3\u306b\u304a\u3044\u3066\u3001\u9818\u57df\u306e\u5883\u754c\u3067\u6e80\u305f\u3059\u3079\u304d\u7279\u5b9a\u306e\u6761\u4ef6\uff08\u5883\u754c\u6761\u4ef6\uff09\u3092\u8a2d\u5b9a\u3059\u308b\u3053\u3068\u304c\u91cd\u8981\u3067\u3059\u3002\u4ee3\u8868\u7684\u306a\u5883\u754c\u6761\u4ef6\u306b\u306f\u4ee5\u4e0b\u306e\u3082\u306e\u304c\u3042\u308a\u307e\u3059\uff1a<\/p>\n<p>\u30c7\u30a3\u30ea\u30af\u30ec\u6761\u4ef6\uff08Dirichlet condition\uff09\uff1a\u9818\u57df\u306e\u5883\u754c\u3067\u7269\u7406\u91cf\u306e\u5024\u3092\u5b9a\u7fa9\u3059\u308b\u3002<\/p>\n<p>\u30ce\u30a4\u30de\u30f3\u6761\u4ef6\uff08Neumann condition\uff09\uff1a\u9818\u57df\u306e\u5883\u754c\u3067\u7269\u7406\u91cf\u306e\u52fe\u914d\u3092\u5b9a\u7fa9\u3059\u308b\u3002<\/p>\n<h2>CFD\u306e\u5fdc\u7528\u4f8b<\/h2>\n<p>\u5b9f\u969b\u306e\u5fdc\u7528\u4f8b\u3068\u3057\u3066\u306f\u3001\u822a\u7a7a\u6a5f\u306e\u7ffc\u5f62\u72b6\u306e\u6700\u9069\u5316\u3001\u81ea\u52d5\u8eca\u306e\u7a7a\u529b\u7279\u6027\u306e\u8a55\u4fa1\u3001\u767a\u96fb\u6240\u306e\u51b7\u5374\u7cfb\u306e\u52b9\u7387\u5316\u306a\u3069\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u308c\u3089\u306e\u5fdc\u7528\u306b\u3088\u308a\u3001\u88fd\u54c1\u8a2d\u8a08\u306e\u6539\u5584\u3084\u30b3\u30b9\u30c8\u524a\u6e1b\u304c\u53ef\u80fd\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<h2>\u307e\u3068\u3081<\/h2>\n<p>\u8a08\u7b97\u6d41\u4f53\u529b\u5b66\u306f\u3001\u6d41\u4f53\u306e\u8907\u96d1\u306a\u6319\u52d5\u3092\u4e88\u6e2c\u3057\u3001\u8a2d\u8a08\u3084\u6700\u9069\u5316\u3092\u52a9\u3051\u308b\u305f\u3081\u306e\u5f37\u529b\u306a\u30c4\u30fc\u30eb\u3067\u3059\u3002\u57fa\u672c\u7684\u306a\u30ca\u30d3\u30a8-\u30b9\u30c8\u30fc\u30af\u30b9\u65b9\u7a0b\u5f0f\u3068\u30e1\u30c3\u30b7\u30e5\u751f\u6210\u3001\u9069\u5207\u306a\u5883\u754c\u6761\u4ef6\u306e\u8a2d\u5b9a\u306b\u3088\u308a\u3001\u3055\u307e\u3056\u307e\u306a\u5de5\u5b66\u554f\u984c\u306b\u5bfe\u3059\u308b\u7cbe\u5bc6\u306a\u30b7\u30df\u30e5\u30ec\u30fc\u30b7\u30e7\u30f3\u304c\u5b9f\u73fe\u53ef\u80fd\u3068\u306a\u308a\u307e\u3059\u3002CFD\u306e\u6280\u8853\u306f\u3001\u672a\u6765\u306e\u6280\u8853\u9769\u65b0\u306b\u304a\u3044\u3066\u3082\u4e2d\u5fc3\u7684\u306a\u5f79\u5272\u3092\u679c\u305f\u3057\u7d9a\u3051\u308b\u3067\u3057\u3087\u3046\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u8a08\u7b97\u6d41\u4f53\u529b\u5b66\uff08CFD\uff09\u306f\u3001\u30b3\u30f3\u30d4\u30e5\u30fc\u30bf\u3092\u7528\u3044\u3066\u6d41\u4f53\u306e\u6319\u52d5\u3092\u6570\u5024\u30b7\u30df\u30e5\u30ec\u30fc\u30b7\u30e7\u30f3\u3057\u3001\u822a\u7a7a\u5de5\u5b66\u3084\u81ea\u52d5\u8eca\u5de5\u5b66\u306a\u3069\u3067\u5e83\u304f\u5fdc\u7528\u3055\u308c\u308b\u6280\u8853\u3067\u3059\u3002<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[125],"tags":[],"yoast_head":"<!-- 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