{"id":373416,"date":"2024-06-23T10:39:11","date_gmt":"2024-06-23T09:39:11","guid":{"rendered":"https:\/\/www.thermal-engineering.org\/%ec%b8%b5%eb%a5%98%ec%97%90%ec%84%9c%ec%9d%98-%ec%97%b4-%ec%a0%84%eb%8b%ac\/"},"modified":"2024-06-23T10:39:11","modified_gmt":"2024-06-23T09:39:11","slug":"%ec%b8%b5%eb%a5%98%ec%97%90%ec%84%9c%ec%9d%98-%ec%97%b4-%ec%a0%84%eb%8b%ac","status":"publish","type":"post","link":"https:\/\/www.thermal-engineering.org\/ko\/%ec%b8%b5%eb%a5%98%ec%97%90%ec%84%9c%ec%9d%98-%ec%97%b4-%ec%a0%84%eb%8b%ac\/","title":{"rendered":"\uce35\ub958\uc5d0\uc11c\uc758 \uc5f4 \uc804\ub2ec"},"content":{"rendered":"<p class=\"sidekick\">\uce35\ub958\uc5d0\uc11c\uc758 \uc5f4 \uc804\ub2ec\uc740 \uc720\uccb4\uc758 \uaddc\uce59\uc801 \ud750\ub984 \uc18d\uc5d0\uc11c \uc5f4 \uc5d0\ub108\uc9c0\uac00 \uc804\ub3c4\uc640 \ub300\ub958\ub97c \ud1b5\ud574 \uc774\ub3d9\ud558\ub294 \uacfc\uc815\uc744 \uc124\uba85\ud558\uba70, \ub808\uc774\ub180\uc988 \uc218\ub85c \ubd84\uc11d\ub429\ub2c8\ub2e4.<\/p>\n<p><img src=\"https:\/\/www.thermal-engineering.org\/wp-content\/uploads\/2024\/06\/\uce35\ub958\uc5d0\uc11c\uc758_\uc5f4_\uc804\ub2ec.png\" alt=\"\uce35\ub958\uc5d0\uc11c\uc758 \uc5f4 \uc804\ub2ec\" style=\"display: block; margin-left: auto; margin-right: auto;\"\/><\/p>\n<h2>\uce35\ub958\uc5d0\uc11c\uc758 \uc5f4 \uc804\ub2ec<\/h2>\n<p>\uc5f4 \uc804\ub2ec\uc740 \uc5f4 \uc5d0\ub108\uc9c0\uac00 \ud55c \ubb3c\uccb4\uc5d0\uc11c \ub2e4\ub978 \ubb3c\uccb4\ub85c \uc774\ub3d9\ud558\ub294 \uacfc\uc815\uc73c\ub85c, \uc8fc\ub85c \uc804\ub3c4, \ub300\ub958, \ubcf5\uc0ac\uc758 \uc138 \uac00\uc9c0 \ubc29\ubc95\uc744 \ud1b5\ud574 \uc77c\uc5b4\ub0a9\ub2c8\ub2e4. \uce35\ub958\uc5d0\uc11c\uc758 \uc5f4 \uc804\ub2ec\uc740 \ud2b9\ud788 \ub300\ub958 \uc5f4 \uc804\ub2ec\uc758 \ud55c \ud615\ud0dc\ub85c, \uc720\uccb4 \ud750\ub984\uc758 \uc18d\ub3c4\uc640 \ud2b9\uc131\uc5d0 \ub530\ub77c \uc5f4\uc804\ub2ec \uacc4\uc218\uc640 \uc5f4\uc804\ub2ec\uc728\uc774 \ub2ec\ub77c\uc9d1\ub2c8\ub2e4.<\/p>\n<h2>\uce35\ub958\uc758 \uc815\uc758<\/h2>\n<p>\uce35\ub958\ub294 \uc720\uccb4\uac00 \uaddc\uce59\uc801\uc774\uace0 \ud3c9\ud589\ud558\uac8c \uc6c0\uc9c1\uc774\ub294 \ud750\ub984\uc73c\ub85c \uc815\uc758\ub429\ub2c8\ub2e4. \uce35\ub958\uc5d0\uc11c \uc720\uccb4 \uc785\uc790\ub294 \uc11c\ub85c \ud63c\ud569\ub418\uc9c0 \uc54a\uace0 \uce35\uc744 \uc774\ub8e8\uba70 \ud750\ub985\ub2c8\ub2e4. \uc774\ub7ec\ud55c \ud750\ub984\uc740 \ub808\uc774\ub180\uc988 \uc218(Re)\ub77c\ub294 \ubb34\ucc28\uc6d0 \uc218\ub85c \ub098\ud0c0\ub0bc \uc218 \uc788\uc73c\uba70, \ub808\uc774\ub180\uc988 \uc218\uac00 \uc57d 2300 \uc774\ud558\uc77c \ub54c \uc720\uccb4\ub294 \uce35\ub958\ub85c \uac04\uc8fc\ub429\ub2c8\ub2e4.<\/p>\n<h2>\uc5f4\uc804\ub2ec \uba54\ucee4\ub2c8\uc998<\/h2>\n<p>\uce35\ub958\uc5d0\uc11c \uc5f4\uc804\ub2ec\uc758 \uc8fc\uc694 \uba54\ucee4\ub2c8\uc998\uc740 \uc804\ub3c4\uc640 \ub300\ub958\uc785\ub2c8\ub2e4:<\/p>\n<p><u1><\/p>\n<li><b>\uc804\ub3c4:<\/b> \uc804\ub3c4\ub294 \uc628\ub3c4\uac00 \ub192\uc740 \uc9c0\uc5ed\uc5d0\uc11c \ub0ae\uc740 \uc9c0\uc5ed\uc73c\ub85c \uc5f4 \uc5d0\ub108\uc9c0\uac00 \uc9c1\uc811 \uc774\ub3d9\ud558\ub294 \uacfc\uc815\uc785\ub2c8\ub2e4. \uc774\ub294 \uace0\uccb4, \uc561\uccb4, \uae30\uccb4 \ubaa8\ub450\uc5d0\uc11c \ubc1c\uc0dd\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/li>\n<li><b>\ub300\ub958:<\/b> \ub300\ub958\ub294 \uc720\uccb4\uc758 \ud750\ub984\uc744 \ud1b5\ud574 \uc5f4\uc774 \uc804\ub2ec\ub418\ub294 \ubc29\uc2dd\uc785\ub2c8\ub2e4. \uce35\ub958\uc5d0\uc11c\ub294 \uc720\uccb4\uac00 \ub808\uc774\uc5b4 \ud615\ud0dc\ub85c \uc6c0\uc9c1\uc774\uae30 \ub54c\ubb38\uc5d0 \ub09c\ub958\ubcf4\ub2e4\ub294 \uc5f4\uc804\ub2ec \ud6a8\uc728\uc774 \ub0ae\uc2b5\ub2c8\ub2e4.<\/li>\n<p><\/u1><\/p>\n<h2>\uce35\ub958\uc5d0\uc11c\uc758 \ub300\ub958 \uc5f4\uc804\ub2ec \uacc4\uc218<\/h2>\n<p>\uce35\ub958\uc5d0\uc11c\uc758 \uc5f4\uc804\ub2ec \uacc4\uc218\ub294 \ub3c4\uc785\ub41c \ubb34\ucc28\uc6d0 \uc218, \ud2b9\ud788 \ub204\uc140 \uc218(Nu)\ub85c \ud45c\ud604\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc774\ub294 \uc544\ub798\uc640 \uac19\uc740 \uc2dd\uc73c\ub85c \ub098\ud0c0\ub0bc \uc218 \uc788\uc2b5\ub2c8\ub2e4:<\/p>\n<p><i>Nu = \\frac{hL}{k}<\/i><\/p>\n<p>\uc5ec\uae30\uc11c,<\/p>\n<p><u1><\/p>\n<li><i>Nu:<\/i> \ub204\uc140 \uc218<\/li>\n<li><i>h:<\/i> \ub300\ub958 \uc5f4\uc804\ub2ec \uacc4\uc218<\/li>\n<li><i>L:<\/i> \ud2b9\uc131 \uae38\uc774(\uc608: \ud30c\uc774\ud504\uc758 \uc9c0\ub984)<\/li>\n<li><i>k:<\/i> \uc720\uccb4\uc758 \uc5f4\uc804\ub3c4\uc728<\/li>\n<p><\/u1><\/p>\n<p>\ub808\uc774\ub180\uc988 \uc218\uc640 \ud504\ub780\ud2c0 \uc218(Pr)\ub97c \ud1b5\ud574 \uce35\ub958\uc5d0\uc11c\uc758 \ub204\uc140 \uc218\ub97c \uad6c\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc77c\ubc18\uc801\uc73c\ub85c \uce35\ub958\uc758 \ub204\uc140 \uc218\ub294 \ub2e4\uc74c\uacfc \uac19\uc740 \uacbd\ud5d8\uc2dd\uc73c\ub85c \ud45c\ud604\ub429\ub2c8\ub2e4:<\/p>\n<p><i>Nu = 0.664 \\cdot Re^{1\/2} \\cdot Pr^{1\/3}<\/i><\/p>\n<h2>\uce35\ub958\uc758 \uc751\uc6a9<\/h2>\n<p>\uce35\ub958\uc5d0\uc11c\uc758 \uc5f4\uc804\ub2ec\uc740 \ub2e4\uc591\ud55c \uc0b0\uc5c5 \ud604\uc7a5\uc5d0\uc11c \uc801\uc6a9\ub429\ub2c8\ub2e4. \uc608\ub97c \ub4e4\uc5b4, \uc5f4\uad50\ud658\uae30, \ud30c\uc774\ud504 \ub0b4\ubd80\uc758 \uc720\uccb4 \ud750\ub984, \ub0c9\uac01 \uc2dc\uc2a4\ud15c \ub4f1\uc758 \ub514\uc790\uc778\uacfc \ubd84\uc11d\uc5d0\uc11c \uc911\uc694\ud55c \uc5ed\ud560\uc744 \ud569\ub2c8\ub2e4. \ud6a8\uc728\uc801\uc778 \uc5f4\uc804\ub2ec\uc744 \uc704\ud574 \uce35\ub958\uc640 \ub09c\ub958 \uc870\uac74\uc744 \uba85\ud655\ud788 \uc774\ud574\ud558\uace0 \uc751\uc6a9\ud558\ub294 \uac83\uc774 \ud544\uc218\uc801\uc785\ub2c8\ub2e4.<\/p>\n<p>\uce35\ub958 \uc870\uac74\uc5d0\uc11c\ub294 \ube44\uad50\uc801 \ub0ae\uc740 \ub300\ub958 \uc5f4\uc804\ub2ec \uacc4\uc218\ub97c \uac00\uc9c0\uc9c0\ub9cc, \uc774\ub294 \uc5f4 \uc804\ub2ec \ud6a8\uc728\uc744 \ub192\uc774\uae30 \uc704\ud574 \ucd5c\uc801\ud654\ub41c \ud30c\uc774\ud504 \uc7ac\uc9c8\uacfc \uc720\uccb4 \uc18d\ub3c4 \uc870\uc808 \ub4f1\uc744 \ud1b5\ud574 \ubcf4\uc644\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n<h2>\ub9fa\uc74c\ub9d0<\/h2>\n<p>\uce35\ub958\uc5d0\uc11c\uc758 \uc5f4 \uc804\ub2ec\uc740 \uc804\ub3c4\uc640 \ub300\ub958\uc5d0 \uc758\ud574 \uc8fc\ub85c \uacb0\uc815\ub429\ub2c8\ub2e4. \uc774\ub294 \ub808\uc774\ub180\uc988 \uc218\uc640 \ud504\ub780\ud2c0 \uc218\uc5d0 \uc758\ud574 \ubb18\uc0ac\ub418\uba70, \ud6a8\uacfc\uc801\uc778 \uc2dc\uc2a4\ud15c \uc124\uacc4\ub97c \uc704\ud574 \uc911\uc694\ud55c \uae30\ucd08 \uc9c0\uc2dd\uc744 \uc81c\uacf5\ud569\ub2c8\ub2e4. \uce35\ub958\uc640 \ub09c\ub958 \uc870\uac74\uc744 \uc815\ud655\ud788 \uc774\ud574\ud558\uace0 \ud65c\uc6a9\ud568\uc73c\ub85c\uc368 \uc5f4\uc804\ub2ec \uc2dc\uc2a4\ud15c\uc758 \ud6a8\uc728\uc131\uc744 \uadf9\ub300\ud654\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\uce35\ub958\uc5d0\uc11c\uc758 \uc5f4 \uc804\ub2ec\uc740 \uc720\uccb4\uc758 \uaddc\uce59\uc801 \ud750\ub984 \uc18d\uc5d0\uc11c \uc5f4 \uc5d0\ub108\uc9c0\uac00 \uc804\ub3c4\uc640 \ub300\ub958\ub97c \ud1b5\ud574 \uc774\ub3d9\ud558\ub294 \uacfc\uc815\uc744 \uc124\uba85\ud558\uba70, \ub808\uc774\ub180\uc988 \uc218\ub85c \ubd84\uc11d\ub429\ub2c8\ub2e4.<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[124],"tags":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v15.4 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>\uce35\ub958\uc5d0\uc11c\uc758 \uc5f4 \uc804\ub2ec<\/title>\n<meta name=\"description\" content=\"\uce35\ub958\uc5d0\uc11c\uc758 \uc5f4 \uc804\ub2ec\uc740 \uc720\uccb4\uc758 \uaddc\uce59\uc801 \ud750\ub984 \uc18d\uc5d0\uc11c \uc5f4 \uc5d0\ub108\uc9c0\uac00 \uc804\ub3c4\uc640 \ub300\ub958\ub97c \ud1b5\ud574 \uc774\ub3d9\ud558\ub294 \uacfc\uc815\uc744 \uc124\uba85\ud558\uba70, 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