{"id":287,"date":"2022-08-16T11:06:12","date_gmt":"2022-08-16T02:06:12","guid":{"rendered":"https:\/\/be-link.jp\/bel\/?p=287"},"modified":"2022-09-27T07:40:48","modified_gmt":"2022-09-26T22:40:48","slug":"%e3%83%ac%e3%82%a4%e3%83%8e%e3%83%ab%e3%82%ba%e6%95%b0","status":"publish","type":"post","link":"https:\/\/be-link.jp\/bel\/2022_08post287.html","title":{"rendered":"\u30ec\u30a4\u30ce\u30eb\u30ba\u6570"},"content":{"rendered":"\n<p>\u6d41\u901f U \u3001\u6d41\u308c\u306e\u4e2d\u306b\u3042\u308b\u7269\u4f53\u306e\u5927\u304d\u3055\u3068\u304b\u7ba1\u5185\u306e\u6d41\u308c\u3067\u3042\u308c\u3070\u6d41\u308c\u3092\u898f\u5b9a\u3057\u3066\u3044\u308b\u7ba1\u306e\u76f4\u5f84\u306a\u3069\u6d41\u308c\u3092\u4ee3\u8868\u3059\u308b\u5bf8\u6cd5\u3092 L \u3068\u3059\u308b\u3002\u307e\u305f\u3001\u6d41\u4f53\u306e\u52d5\u7c98\u6027\u4fc2\u6570\u3092 \u03bd \uff08 = \u03bc \/ \u03c1 \uff09\u3068\u3059\u308b\u3002\u306a\u304a\u3001\u03bc\u3092\u7c98\u6027\u4fc2\u6570\u3001\u03c1\u3092\u5bc6\u5ea6\u3068\u3059\u308b\u3002\u3053\u308c\u3089\u3092\u4f7f\u3063\u3066\u7121\u6b21\u5143\u6570\u3092\u4f5c\u308b\u3068 U\u00d7L \/ \u03bd \u5f97\u3089\u308c\u308b\u3002\u3053\u308c\u3092<mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-vivid-cyan-blue-color\">\u30ec\u30a4\u30ce\u30eb\u30ba\u6570<\/mark> Re \u3068\u547c\u3076\u3002<\/p>\n\n\n\n<p>Re =  U\u00d7L \/ \u03bd<\/p>\n\n\n\n<p>\u3053\u308c\u306f\u6d41\u308c\u306b\u4f5c\u7528\u3059\u308b\u6163\u6027\u529b\u3068\u7c98\u6027\u529b\u306e\u6bd4\u3092\u8868\u3059\u3002Re =  1 \u306e\u5834\u5408\u3001\u611f\u6027\u529b\u3068\u7c98\u6027\u529b\u304c\u62ee\u6297\u3057\u3066\u3044\u308b\u306e\u3067\u3001\u53d6\u308a\u6271\u3044\u304c\u6700\u3082\u5384\u4ecb\u3067\u3042\u308b\u3002Re&gt;&gt;1 \u306e\u5834\u5408\u306f\u6163\u6027\u529b\u304c\u512a\u4f4d\u3067\u3042\u308b\u306e\u3067\u7c98\u6027\u3092\u7121\u8996\u3057\u305f\u30d9\u30eb\u30cc\u30fc\u30a4\u306e\u5f0f\u3067\u6d41\u4f53\u306e\u904b\u52d5\u3092\u6271\u3048\u308b\u3002\u8eab\u306e\u56de\u308a\u306e\u6d41\u308c\u306e\u307b\u3068\u3093\u3069\u306f\u3053\u308c\u306b\u76f8\u5f53\u3059\u308b\u306e\u3067\u3001\u30d9\u30eb\u30cc\u30fc\u30a4\u306e\u5f0f\u3067\u898b\u7a4d\u308a\u304c\u3067\u304d\u308b\u3002\u3064\u307e\u308a\u3001\u5927\u5c40\u7684\u306a\u6d41\u308c\u306f\u7c98\u6027\u3092\u7121\u8996\u3057\u305f\u7406\u60f3\u6d41\u4f53\u3067\u6271\u3048\u308b\u306e\u3067\u3042\u308b\u3002\u3068\u3053\u308d\u304c\u3053\u308c\u3060\u3068\u7269\u4f53\u306b\u4f5c\u7528\u3059\u308b\u62b5\u6297\u3092\u898b\u7a4d\u3082\u308c\u306a\u304f\u306a\u308b\u306e\u3067\u3001\u305d\u306e\u6642\u3060\u3051\u58c1\u9762\u306b\u63a5\u3057\u3066\u3044\u308b\u90e8\u5206\u306f\u901f\u5ea6\u304c\u7c98\u6027\u3067\u9045\u304f\u306a\u3063\u3066\u3044\u308b\u3068\u3057\u3066 Re \u6570\u304c\u5c0f\u3055\u304f\u7c98\u6027\u304c\u652f\u914d\u7684\u3068\u3057\u3066\u6271\u3046\u306e\u3067\u3042\u308b\u3002\u3053\u308c\u3092\u5883\u754c\u5c64\u7406\u8ad6\u3068\u3044\u3046\u3002Re &lt;&lt;1 \u306e\u5834\u5408\u306f\u7c98\u6027\u529b\u304c\u652f\u914d\u7684\u306a\u6d41\u308c\u3068\u3057\u3066\u6271\u3046\u3002\u4f8b\u3048\u3070\u5fae\u751f\u7269\u306e\u904b\u52d5\u3068\u305d\u306e\u5468\u308a\u306e\u6d41\u308c\u304c\u3053\u308c\u306b\u76f8\u5f53\u3059\u308b\u3002\u8702\u871c\u306e\u3088\u3046\u306b\u7c98\u5ea6\u304c\u5927\u304d\u306a\u306a\u6d41\u308c\u306e\u5834\u5408\u3082\u3053\u308c\u306b\u76f8\u5f53\u3059\u308b\u3002\u6c34\u69fd\u3067\u5c0f\u3055\u306a\u71b1\u5e2f\u9b5a\u304c\u6025\u306b\u6b62\u307e\u3063\u305f\u308a\u52d5\u3044\u305f\u308a\u3067\u304d\u308b\u306e\u306f\u6163\u6027\u529b\u304c\u7121\u8996\u3067\u304d\u308b\u304b\u3089\u3067\u3042\u308b\u3002<\/p>\n\n\n\n<p>\u30df\u30b8\u30f3\u30b3\u304f\u3089\u3044\u306e\u5fae\u751f\u7269\u306e\u5927\u304d\u3055\u304c L=1mm , \u904a\u6cf3\u901f\u5ea6U=1mm\/s , \u6c34\u306e\u52d5\u7c98\u6027\u4fc2\u6570 \u03bd =1.0 \u00d710<sup>-6<\/sup> [m<sup>2<\/sup>\/s] \u3067\u306f Re= 1  \u3067\u3042\u308b\u3002\u4eba\u9593\u304c\u6b69\u304f\u5834\u5408\u3067\u306f\u3001 L=1.5m , \u904a\u6cf3\u901f\u5ea6U=1 m\/s , \u7a7a\u6c17\u306e\u52d5\u7c98\u6027\u4fc2\u6570 \u03bd =1.5 \u00d710<sup>-5<\/sup> [m<sup>2<\/sup>\/s] \u3067\u3042\u308b\u306e\u3067\u3001Re=10<sup>5<\/sup> \u3068\u306a\u308a\u3001\u4eba\u9593\u304c\u6b69\u304f\u3068\u304d\u306e\u5468\u308a\u306e\u6d41\u308c\u306e\u30ec\u30a4\u30ce\u30eb\u30ba\u6570\u306f\u3000Re&gt;&gt;1 \u3067\u308b\u3002\u3057\u305f\u304c\u3063\u3066\u8eab\u306e\u56de\u308a\u306e\u6d41\u308c\u306eRe\u306f\u9ad8\u3044\u3068\u3044\u3046\u3053\u3068\u304c\u5b9f\u611f\u3067\u304d\u308b\u3067\u3042\u308d\u3046\u3002<\/p>\n\n\n\n<p>\u4ee3\u8868\u901f\u5ea6\u304a\u3088\u3073\u4ee3\u8868\u5bf8\u6cd5\u3067\u7121\u6b21\u5143\u5316\u3055\u308c\u305f\u30ca\u30d3\u30a8\u30fb\u30b9\u30c8\u30fc\u30af\u30b9\u65b9\u7a0b\u5f0f\u306b\u304a\u3051\u308b\u7c98\u6027\u9805\u306b\u306f\u30ec\u30a4\u30ce\u30eb\u30ba\u6570\u306e\u9006\u6570\u304c\u4fc2\u6570\u3068\u3057\u3066\u3064\u304f\u3002\u3057\u305f\u304c\u3063\u3066\u3001Re\u6570\u304c\u5c0f\u3055\u3051\u308c\u3070\u5c0f\u3055\u3044\u307b\u3069\u7c98\u6027\u9805\u306e\u5f71\u97ff\u304c\u5f37\u304f\u306a\u308a\u3001\u9006\u306bRe\u6570\u304c\u5927\u304d\u3044\u307b\u3069\u7c98\u6027\u9805\u306f0\u306b\u8fd1\u3065\u304f\u306e\u3067\u7c98\u6027\u306e\u52b9\u679c\u306f\u5f31\u304f\u306a\u308b\u3053\u3068\u304c\u308f\u304b\u308b\u3002<\/p>\n\n\n\n<p>Re\u6570\u3092\u4e00\u81f4\u3055\u305b\u308c\u3070\u540c\u3058\u6d41\u308c\u3068\u306a\u308b\u3053\u3068\u304c\u4e0a\u8ff0\u306e\u7121\u6b21\u5143\u5316\u3055\u308c\u305f\u30ca\u30d3\u30a8\u30fb\u30b9\u30c8\u30fc\u30af\u30b9\u65b9\u7a0b\u5f0f\u304b\u3089\u308f\u304b\u308b\u3002\u3053\u308c\u304c\u6d41\u4f53\u5de5\u5b66\u306b\u304a\u3051\u308b\u6a21\u578b\u5b9f\u9a13\u3092\u53ef\u80fd\u3068\u3057\u3066\u3044\u308b\u3002\u5b9f\u6a5f\u3067\u306f\u306a\u304f\u6a21\u578b\u3092\u4f7f\u3063\u305f\u5b9f\u9a13\u3067Re\u6570\u3092\u5408\u308f\u305b\u308c\u3070\u540c\u3058\u6d41\u308c\u3092\u518d\u73fe\u3067\u304d\u308b\u306e\u3067\u3042\u308b\u3002\u4f8b\u3048\u3070\u6a21\u578b\u306e\u5bf8\u6cd5\u3092\u5b9f\u6a5f\u306e\u534a\u5206\u3068\u3059\u308c\u3070\u901f\u5ea6\u306f2\u500d\u3067\u5b9f\u9a13\u3092\u3059\u308c\u3070\u826f\u3044\u3053\u3068\u306b\u306a\u308b\u3002\u3082\u3057\u304f\u306f\u52d5\u7c98\u6027\u4fc2\u6570\u3092\u5143\u306e1\/2 \u306e\u6d41\u4f53\u3092\u4f7f\u3048\u3070\u826f\u3044\u3053\u3068\u304c\u308f\u304b\u308b\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"\u6d41\u901f U \u3001\u6d41\u308c\u306e\u4e2d\u306b\u3042\u308b\u7269\u4f53\u306e\u5927\u304d\u3055\u3068\u304b\u7ba1\u5185\u306e\u6d41\u308c\u3067\u3042\u308c\u3070\u6d41\u308c\u3092\u898f\u5b9a\u3057\u3066\u3044\u308b\u7ba1\u306e\u76f4\u5f84\u306a\u3069\u6d41\u308c\u3092\u4ee3\u8868\u3059\u308b\u5bf8\u6cd5\u3092 L \u3068\u3059\u308b\u3002\u307e\u305f\u3001\u6d41\u4f53\u306e\u52d5\u7c98\u6027\u4fc2\u6570\u3092 \u03bd \uff08 = \u03bc \/ \u03c1 \uff09\u3068\u3059\u308b\u3002\u306a\u304a\u3001\u03bc\u3092\u7c98\u6027\u4fc2\u6570\u3001\u03c1\u3092\u5bc6\u5ea6\u3068\u3059\u308b\u3002 [&hellip;]","protected":false},"author":2,"featured_media":289,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"cybocfi_hide_featured_image":"","footnotes":""},"categories":[11,77],"tags":[25,26,27,90],"class_list":["post-287","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-notes","category-fluid-engineering","tag-25","tag-26","tag-27","tag-90"],"_links":{"self":[{"href":"https:\/\/be-link.jp\/bel\/wp-json\/wp\/v2\/posts\/287","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/be-link.jp\/bel\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/be-link.jp\/bel\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/be-link.jp\/bel\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/be-link.jp\/bel\/wp-json\/wp\/v2\/comments?post=287"}],"version-history":[{"count":5,"href":"https:\/\/be-link.jp\/bel\/wp-json\/wp\/v2\/posts\/287\/revisions"}],"predecessor-version":[{"id":383,"href":"https:\/\/be-link.jp\/bel\/wp-json\/wp\/v2\/posts\/287\/revisions\/383"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/be-link.jp\/bel\/wp-json\/wp\/v2\/media\/289"}],"wp:attachment":[{"href":"https:\/\/be-link.jp\/bel\/wp-json\/wp\/v2\/media?parent=287"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/be-link.jp\/bel\/wp-json\/wp\/v2\/categories?post=287"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/be-link.jp\/bel\/wp-json\/wp\/v2\/tags?post=287"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}