{"id":401596,"date":"2024-06-28T05:08:35","date_gmt":"2024-06-28T04:08:35","guid":{"rendered":"https:\/\/www.thermal-engineering.org\/%e5%af%86%e9%96%89%e7%a9%ba%e9%96%93%e3%81%ab%e3%81%8a%e3%81%91%e3%82%8b%e8%87%aa%e7%84%b6%e5%af%be%e6%b5%81\/"},"modified":"2024-06-28T05:08:35","modified_gmt":"2024-06-28T04:08:35","slug":"%e5%af%86%e9%96%89%e7%a9%ba%e9%96%93%e3%81%ab%e3%81%8a%e3%81%91%e3%82%8b%e8%87%aa%e7%84%b6%e5%af%be%e6%b5%81","status":"publish","type":"post","link":"https:\/\/www.thermal-engineering.org\/ja\/%e5%af%86%e9%96%89%e7%a9%ba%e9%96%93%e3%81%ab%e3%81%8a%e3%81%91%e3%82%8b%e8%87%aa%e7%84%b6%e5%af%be%e6%b5%81\/","title":{"rendered":"\u5bc6\u9589\u7a7a\u9593\u306b\u304a\u3051\u308b\u81ea\u7136\u5bfe\u6d41"},"content":{"rendered":"<p class=\"sidekick\">\u5bc6\u9589\u7a7a\u9593\u306b\u304a\u3051\u308b\u81ea\u7136\u5bfe\u6d41\u306e\u4ed5\u7d44\u307f\u3084\u7279\u5fb4\u3001\u5177\u4f53\u7684\u306a\u5fdc\u7528\u4f8b\u306b\u3064\u3044\u3066\u308f\u304b\u308a\u3084\u3059\u304f\u8aac\u660e\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<p><img src=\"https:\/\/www.thermal-engineering.org\/wp-content\/uploads\/2024\/06\/\u5bc6\u9589\u7a7a\u9593\u306b\u304a\u3051\u308b\u81ea\u7136\u5bfe\u6d41.png\" alt=\"\u5bc6\u9589\u7a7a\u9593\u306b\u304a\u3051\u308b\u81ea\u7136\u5bfe\u6d41\" style=\"display: block; margin-left: auto; margin-right: auto;\"\/><\/p>\n<h2>\u5bc6\u9589\u7a7a\u9593\u306b\u304a\u3051\u308b\u81ea\u7136\u5bfe\u6d41<\/h2>\n<p>\u81ea\u7136\u5bfe\u6d41\u3068\u306f\u3001\u6d41\u4f53\u306e\u6e29\u5ea6\u5dee\u306b\u3088\u3063\u3066\u81ea\u767a\u7684\u306b\u767a\u751f\u3059\u308b\u6d41\u308c\u306e\u3053\u3068\u3067\u3059\u3002\u3053\u306e\u73fe\u8c61\u306f\u3001\u7279\u306b\u5bc6\u9589\u7a7a\u9593\u5185\u3067\u306e\u71b1\u4f1d\u9054\u306b\u304a\u3044\u3066\u91cd\u8981\u306a\u5f79\u5272\u3092\u679c\u305f\u3057\u307e\u3059\u3002\u4ee5\u4e0b\u3067\u306f\u3001\u81ea\u7136\u5bfe\u6d41\u306e\u4ed5\u7d44\u307f\u3084\u3001\u5bc6\u9589\u7a7a\u9593\u3067\u306e\u5177\u4f53\u7684\u306a\u4f8b\u306b\u3064\u3044\u3066\u8aac\u660e\u3057\u307e\u3059\u3002<\/p>\n<h2>\u81ea\u7136\u5bfe\u6d41\u306e\u57fa\u672c\u539f\u7406<\/h2>\n<p>\u81ea\u7136\u5bfe\u6d41\u306f\u3001\u4e3b\u306b\u6d41\u4f53\uff08\u6db2\u4f53\u3084\u6c17\u4f53\uff09\u306e\u5bc6\u5ea6\u5dee\u306b\u3088\u3063\u3066\u751f\u3058\u308b\u6d6e\u529b\u306b\u3088\u3063\u3066\u5f15\u304d\u8d77\u3053\u3055\u308c\u307e\u3059\u3002\u6e29\u3081\u3089\u308c\u305f\u6d41\u4f53\u306f\u81a8\u5f35\u3057\u3001\u5bc6\u5ea6\u304c\u4f4e\u304f\u306a\u308a\u307e\u3059\u3002\u305d\u306e\u7d50\u679c\u3001\u6e29\u304b\u3044\u6d41\u4f53\u306f\u4e0a\u6607\u3057\u3001\u9006\u306b\u51b7\u305f\u3044\u6d41\u4f53\u306f\u4e0b\u964d\u3057\u307e\u3059\u3002\u3053\u306e\u30b5\u30a4\u30af\u30eb\u304c\u7e70\u308a\u8fd4\u3055\u308c\u308b\u3053\u3068\u3067\u3001\u81ea\u7136\u5bfe\u6d41\u304c\u767a\u751f\u3057\u307e\u3059\u3002<\/p>\n<h2>\u5bc6\u9589\u7a7a\u9593\u306b\u304a\u3051\u308b\u81ea\u7136\u5bfe\u6d41\u306e\u7279\u5fb4<\/h2>\n<p>\u5bc6\u9589\u7a7a\u9593\u3067\u306f\u3001\u81ea\u7136\u5bfe\u6d41\u306e\u30d1\u30bf\u30fc\u30f3\u306f\u7a7a\u9593\u306e\u5f62\u72b6\u3084\u6e29\u5ea6\u5206\u5e03\u306b\u5927\u304d\u304f\u4f9d\u5b58\u3057\u307e\u3059\u3002\u4ee5\u4e0b\u306b\u305d\u306e\u4e3b\u8981\u306a\u7279\u5fb4\u3092\u6319\u3052\u307e\u3059\uff1a<\/p>\n<ul>\n<li><strong>\u6e29\u5ea6\u52fe\u914d<\/strong>\uff1a\u5bc6\u9589\u7a7a\u9593\u3067\u306f\u3001\u58c1\u9762\u3084\u90e8\u5c4b\u306e\u4e00\u90e8\u306b\u71b1\u6e90\u304c\u3042\u308b\u5834\u5408\u3001\u305d\u306e\u90e8\u5206\u304b\u3089\u4e0a\u6607\u3059\u308b\u6c17\u6d41\u304c\u767a\u751f\u3057\u307e\u3059\u3002\u4e00\u65b9\u3067\u3001\u51b7\u305f\u3044\u90e8\u5206\u3067\u306f\u4e0b\u964d\u3059\u308b\u6c17\u6d41\u304c\u898b\u3089\u308c\u307e\u3059\u3002<\/li>\n<li><strong>\u5bfe\u6d41\u5faa\u74b0<\/strong>\uff1a\u81ea\u7136\u5bfe\u6d41\u306b\u3088\u3063\u3066\u6d41\u4f53\u304c\u7d99\u7d9a\u7684\u306b\u5faa\u74b0\u3059\u308b\u3053\u3068\u3067\u3001\u5168\u4f53\u306e\u71b1\u5206\u5e03\u304c\u5747\u4e00\u5316\u3055\u308c\u308b\u50be\u5411\u304c\u3042\u308a\u307e\u3059\u3002<\/li>\n<li><strong>\u7a7a\u9593\u306e\u5f62\u72b6<\/strong>\uff1a\u5929\u4e95\u304c\u9ad8\u3044\u90e8\u5c4b\u3084\u3001\u72ed\u3044\u5834\u6240\u306a\u3069\u3001\u7a7a\u9593\u306e\u5f62\u72b6\u304c\u5bfe\u6d41\u30d1\u30bf\u30fc\u30f3\u306b\u5f71\u97ff\u3092\u4e0e\u3048\u307e\u3059\u3002<\/li>\n<\/ul>\n<h2>\u81ea\u7136\u5bfe\u6d41\u306e\u6570\u5b66\u7684\u30e2\u30c7\u30eb<\/h2>\n<p>\u81ea\u7136\u5bfe\u6d41\u306e\u89e3\u6790\u306b\u306f\u3001\u30ca\u30d3\u30a8\u2013\u30b9\u30c8\u30fc\u30af\u30b9\u65b9\u7a0b\u5f0f\u3068\u30a8\u30cd\u30eb\u30ae\u30fc\u65b9\u7a0b\u5f0f\u304c\u7528\u3044\u3089\u308c\u307e\u3059\u3002\u3053\u308c\u3089\u306e\u65b9\u7a0b\u5f0f\u306b\u3088\u3063\u3066\u6d41\u4f53\u306e\u904b\u52d5\u3068\u71b1\u4f1d\u9054\u304c\u8a18\u8ff0\u3055\u308c\u307e\u3059\u3002\u7279\u306b\u3001\u30ec\u30a4\u30ea\u30fc\u6570 (Rayleigh number) <em>Ra<\/em> \u304c\u81ea\u7136\u5bfe\u6d41\u306e\u767a\u751f\u3092\u5224\u65ad\u3059\u308b\u305f\u3081\u306e\u7121\u6b21\u5143\u6570\u3068\u3057\u3066\u983b\u7e41\u306b\u7528\u3044\u3089\u308c\u307e\u3059\uff1a<\/p>\n<p>\\[Ra = \\frac{g \\cdot \\beta \\cdot (T_h &#8211; T_c) \\cdot L^3}{\\nu \\cdot \\alpha}\\]\n<p>\u3053\u3053\u3067\u3001<\/p>\n<ul>\n<li><em>g<\/em>\uff1a\u91cd\u529b\u52a0\u901f\u5ea6<\/li>\n<li><em>\u03b2<\/em>\uff1a\u4f53\u81a8\u5f35\u7387<\/li>\n<li><em>(T_h &#8211; T_c)<\/em>\uff1a\u6e29\u5ea6\u5dee<\/li>\n<li><em>L<\/em>\uff1a\u7279\u5fb4\u9577\u3055<\/li>\n<li><em>\u03bd<\/em>\uff1a\u52d5\u7c98\u6027\u4fc2\u6570<\/li>\n<li><em>\u03b1<\/em>\uff1a\u71b1\u62e1\u6563\u4fc2\u6570<\/li>\n<\/ul>\n<h2>\u5bc6\u9589\u7a7a\u9593\u3067\u306e\u5fdc\u7528\u4f8b<\/h2>\n<p>\u5bc6\u9589\u7a7a\u9593\u306b\u304a\u3051\u308b\u81ea\u7136\u5bfe\u6d41\u306f\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u591a\u304f\u306e\u5b9f\u7528\u7684\u306a\u5fdc\u7528\u304c\u8003\u3048\u3089\u308c\u307e\u3059\uff1a<\/p>\n<ul>\n<li><strong>\u5c45\u4f4f\u7a7a\u9593\u306e\u51b7\u6696\u623f<\/strong>\uff1a\u5ba4\u5185\u306e\u7a7a\u6c17\u3092\u81ea\u7136\u5bfe\u6d41\u306b\u3088\u3063\u3066\u5747\u4e00\u306b\u3059\u308b\u3053\u3068\u3067\u3001\u52b9\u7387\u7684\u306a\u6e29\u5ea6\u7ba1\u7406\u304c\u53ef\u80fd\u3067\u3059\u3002<\/li>\n<li><strong>\u96fb\u5b50\u6a5f\u5668\u306e\u51b7\u5374<\/strong>\uff1a\u4f8b\u3048\u3070\u3001\u30b3\u30f3\u30d4\u30e5\u30fc\u30bf\u306e\u5185\u90e8\u3067\u30d5\u30a1\u30f3\u3092\u4f7f\u308f\u305a\u306b\u81ea\u7136\u5bfe\u6d41\u306b\u3088\u3063\u3066\u653e\u71b1\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/li>\n<li><strong>\u5de5\u696d\u30d7\u30ed\u30bb\u30b9<\/strong>\uff1a\u5316\u5b66\u53cd\u5fdc\u3092\u4f34\u3046\u30d7\u30ed\u30bb\u30b9\u3084\u3001\u71b1\u4ea4\u63db\u5668\u5185\u90e8\u3067\u306e\u71b1\u4f1d\u9054\u306b\u5229\u7528\u3055\u308c\u307e\u3059\u3002<\/li>\n<\/ul>\n<p>\u3053\u306e\u3088\u3046\u306b\u3001\u5bc6\u9589\u7a7a\u9593\u306b\u304a\u3051\u308b\u81ea\u7136\u5bfe\u6d41\u306f\u71b1\u7ba1\u7406\u306b\u304a\u3044\u3066\u975e\u5e38\u306b\u91cd\u8981\u306a\u5f79\u5272\u3092\u679c\u305f\u3057\u307e\u3059\u3002\u81ea\u7136\u5bfe\u6d41\u306e\u7406\u89e3\u3068\u305d\u306e\u9069\u7528\u306f\u3001\u5feb\u9069\u306a\u5c45\u4f4f\u74b0\u5883\u304b\u3089\u52b9\u7387\u7684\u306a\u5de5\u696d\u30d7\u30ed\u30bb\u30b9\u307e\u3067\u5e45\u5e83\u3044\u5206\u91ce\u3067\u5f79\u7acb\u3066\u3089\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5bc6\u9589\u7a7a\u9593\u306b\u304a\u3051\u308b\u81ea\u7136\u5bfe\u6d41\u306e\u4ed5\u7d44\u307f\u3084\u7279\u5fb4\u3001\u5177\u4f53\u7684\u306a\u5fdc\u7528\u4f8b\u306b\u3064\u3044\u3066\u308f\u304b\u308a\u3084\u3059\u304f\u8aac\u660e\u3057\u3066\u3044\u307e\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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