{"id":357078,"date":"2024-06-22T09:18:24","date_gmt":"2024-06-22T08:18:24","guid":{"rendered":"https:\/\/www.thermal-engineering.org\/%ea%b8%b0%ea%b3%84%ec%97%90%ec%84%9c%ec%9d%98-%ec%9c%a0%ec%b2%b4-%ec%97%ad%ed%95%99%ec%a0%81-%ec%9c%a4%ed%99%9c\/"},"modified":"2024-06-22T09:18:24","modified_gmt":"2024-06-22T08:18:24","slug":"%ea%b8%b0%ea%b3%84%ec%97%90%ec%84%9c%ec%9d%98-%ec%9c%a0%ec%b2%b4-%ec%97%ad%ed%95%99%ec%a0%81-%ec%9c%a4%ed%99%9c","status":"publish","type":"post","link":"https:\/\/www.thermal-engineering.org\/ko\/%ea%b8%b0%ea%b3%84%ec%97%90%ec%84%9c%ec%9d%98-%ec%9c%a0%ec%b2%b4-%ec%97%ad%ed%95%99%ec%a0%81-%ec%9c%a4%ed%99%9c\/","title":{"rendered":"\uae30\uacc4\uc5d0\uc11c\uc758 \uc720\uccb4 \uc5ed\ud559\uc801 \uc724\ud65c"},"content":{"rendered":"<p class=\"sidekick\">\uae30\uacc4 \ubd80\ud488 \uc0ac\uc774\uc758 \ub9c8\ucc30\uc744 \uc904\uc774\uace0 \ub9c8\ubaa8\ub97c \ubc29\uc9c0\ud558\uba70 \ud6a8\uc728\uc131\uacfc \uc218\uba85\uc744 \ub192\uc774\ub294 \uc720\uccb4 \uc5ed\ud559\uc801 \uc724\ud65c\uc758 \uc6d0\ub9ac \ubc0f \uc911\uc694\uc131.<\/p>\n<p><img src=\"https:\/\/www.thermal-engineering.org\/wp-content\/uploads\/2024\/06\/\uae30\uacc4\uc5d0\uc11c\uc758_\uc720\uccb4_\uc5ed\ud559\uc801_\uc724\ud65c.png\" alt=\"\uae30\uacc4\uc5d0\uc11c\uc758 \uc720\uccb4 \uc5ed\ud559\uc801 \uc724\ud65c\" style=\"display: block; margin-left: auto; margin-right: auto;\"\/><\/p>\n<h2>\uae30\uacc4\uc5d0\uc11c\uc758 \uc720\uccb4 \uc5ed\ud559\uc801 \uc724\ud65c<\/h2>\n<p>\uc720\uccb4 \uc5ed\ud559\uc801 \uc724\ud65c(hydrodynamic lubrication)\uc740 \uae30\uacc4 \ubd80\ud488 \uc0ac\uc774\uc758 \ub9c8\ucc30\uc744 \uc904\uc774\uace0 \ub9c8\ubaa8\ub97c \ubc29\uc9c0\ud558\ub294 \uc911\uc694\ud55c \uae30\uc220\uc785\ub2c8\ub2e4. \uc774 \uc6d0\ub9ac\ub294 \ub450 \ubd80\ud488 \uc0ac\uc774\uc5d0 \uc720\uccb4(\uc77c\ubc18\uc801\uc73c\ub85c \uae30\ub984 \ub610\ub294 \uc724\ud65c\uc720)\ub97c \uc0bd\uc785\ud558\uc5ec \ubd80\ud488\ub4e4\uc774 \uc9c1\uc811\uc801\uc73c\ub85c \uc811\ucd09\ud558\uc9c0 \uc54a\ub3c4\ub85d \ud558\ub294 \uac83\uc785\ub2c8\ub2e4. \uc774\ub294 \ub450 \ubd80\ud488 \uc0ac\uc774\uc5d0 \ub450\uaebc\uc6b4 \uc720\uccb4 \ud544\ub984\uc744 \ud615\uc131\ud558\uc5ec \uc804\ub2e8 \uc751\ub825\uc744 \uac10\uc18c\uc2dc\ud0a4\uace0, \ub9c8\ubaa8 \ubc0f \uc5f4 \ubc1c\uc0dd\uc744 \ucd5c\uc18c\ud654\ud569\ub2c8\ub2e4.<\/p>\n<h3>\uc720\uccb4 \uc5ed\ud559\uc801 \uc724\ud65c\uc758 \uc6d0\ub9ac<\/h3>\n<p>\uc720\uccb4 \uc5ed\ud559\uc801 \uc724\ud65c\uc758 \uc791\ub3d9 \uc6d0\ub9ac\ub294 \ube44\uad50\uc801 \uac04\ub2e8\ud569\ub2c8\ub2e4. \ub450 \uae30\uacc4 \ubd80\ud488\uc774 \uc0c1\ub300\uc801\uc73c\ub85c \uc6c0\uc9c1\uc77c \ub54c, \uc720\uccb4\uac00 \ubd80\ud488 \uc0ac\uc774\ub85c \uc720\uc785\ub418\uace0 \uc0c1\ub300 \uc6b4\ub3d9\uc5d0 \uc758\ud574 \uc720\uccb4 \uc555\ub825\uc774 \uc99d\uac00\ud569\ub2c8\ub2e4. \uc774 \uacb0\uacfc\ub85c \uc720\uccb4\ub294 \ubd80\ud488\uc744 \ubc00\uc5b4\ub0b4\uace0, \ubd80\ud488 \uc0ac\uc774\uc5d0 \uc77c\uc815\ud55c \ub450\uaed8\uc758 \uc720\uccb4 \ud544\ub984\uc774 \ud615\uc131\ub429\ub2c8\ub2e4.<\/p>\n<ol>\n<li>\uc18d\ub3c4 \ucc28\uc774: \ub450 \ubd80\ud488\uc774 \uc0c1\ub300\uc801\uc73c\ub85c \uc774\ub3d9\ud560 \ub54c \ub354 \ub192\uc740 \uc18d\ub3c4\uc758 \ubd80\ud488 \uce21\uc774 \ub0ae\uc740 \uc18d\ub3c4\uc758 \ubd80\ud488 \uce21\uc73c\ub85c \uc720\uccb4\ub97c \ub04c\uc5b4\ub2f9\uae41\ub2c8\ub2e4.<\/li>\n<li>\uc555\ub825 \ud615\uc131: \uc720\uccb4\uac00 \ub04c\ub824\uac00\uba74\uc11c \ubd80\ud488 \uc0ac\uc774\uc5d0\uc11c \uc555\ub825\uc774 \ud615\uc131\ub429\ub2c8\ub2e4.<\/li>\n<li>\uc720\uccb4 \ud544\ub984 \ud615\uc131: \ucda9\ubd84\ud55c \uc555\ub825\uc774 \ud615\uc131\ub418\uba74 \uc720\uccb4\ub294 \ubd80\ud488\ub4e4 \uc0ac\uc774\uc5d0\uc11c \uc77c\uc815\ud55c \ub450\uaed8\uc758 \ud544\ub984\uc744 \ud615\uc131\ud569\ub2c8\ub2e4.<\/li>\n<li>\ub9c8\ucc30 \ubc0f \ub9c8\ubaa8 \uac10\uc18c: \uc720\uccb4 \ud544\ub984\uc774 \ubd80\ud488\ub4e4 \uc0ac\uc774\uc5d0\uc11c \ubbf8\ub044\ub7ec\uc9c0\uba74\uc11c \ub9c8\ucc30\uacfc \ub9c8\ubaa8\ub97c \uc904\uc774\uac8c \ub429\ub2c8\ub2e4.<\/li>\n<\/ol>\n<h3>\uc720\uccb4 \uc5ed\ud559\uc801 \uc724\ud65c\uc758 \uc911\uc694\uc131<\/h3>\n<p>\uc720\uccb4 \uc5ed\ud559\uc801 \uc724\ud65c\uc740 \uc5ec\ub7ec \uae30\uacc4 \uc2dc\uc2a4\ud15c\uc5d0\uc11c \ub9e4\uc6b0 \uc911\uc694\ud569\ub2c8\ub2e4. \ub2e4\uc74c\uc740 \uadf8 \uc911\uc694\uc131\uc744 \uc124\uba85\ud558\ub294 \uba87 \uac00\uc9c0 \uc0ac\ub840\uc785\ub2c8\ub2e4:<\/p>\n<ul>\n<li><strong>\uc5d4\uc9c4:<\/strong> \uc790\ub3d9\ucc28\ub098 \ud56d\uacf5\uae30 \uc5d4\uc9c4\uc5d0\uc11c \uc720\uccb4 \uc724\ud65c\uc740 \uc5d4\uc9c4 \ubd80\ud488\uc774 \uace0\uc18d\uc73c\ub85c \uc6c0\uc9c1\uc77c \ub54c \ubc1c\uc0dd\ud558\ub294 \ub9c8\ucc30\uacfc \uc5f4\uc744 \uc904\uc5ec\uc90d\ub2c8\ub2e4. \uc774\ub294 \uc5d4\uc9c4\uc758 \ud6a8\uc728\uc131\uacfc \uc218\uba85\uc744 \uc5f0\uc7a5\ud558\ub294 \uc8fc\uc694 \uc694\uc778\uc785\ub2c8\ub2e4.<\/li>\n<li><strong>\ubca0\uc5b4\ub9c1:<\/strong> \uc5ec\ub7ec \uc885\ub958\uc758 \ubca0\uc5b4\ub9c1\uc5d0\uc11c \uc720\uccb4 \uc724\ud65c\uc740 \uae30\ubcf8\uc801\uc778 \uc5ed\ud560\uc744 \ud569\ub2c8\ub2e4. \uc608\ub97c \ub4e4\uc5b4, \uc120\ud615 \ubca0\uc5b4\ub9c1\uc774\ub098 \uc120\ud68c \ubca0\uc5b4\ub9c1\uc740 \ubd80\ub4dc\ub7ec\uc6b4 \uc6c0\uc9c1\uc784\uc744 \uc704\ud574 \uc720\uccb4 \ud544\ub984\uc744 \ud544\uc694\ub85c \ud569\ub2c8\ub2e4.<\/li>\n<li><strong>\uae30\uc5b4 \ubc15\uc2a4:<\/strong> \uace0\uc18d \uae30\uc5b4 \ubc15\uc2a4\uc5d0\uc11c\ub3c4 \uc720\uccb4 \uc724\ud65c\uc740 \ud544\uc218\uc801\uc785\ub2c8\ub2e4. \uc720\uccb4\uac00 \uae30\uc5b4 \uc0ac\uc774\uc5d0 \ubb3c\ub9ac\uc801 \uc644\ucda9 \uc791\uc6a9\uc744 \ud558\uc5ec \uc18c\uc74c\uc744 \uc904\uc774\uace0 \ubd80\ub4dc\ub7ec\uc6b4 \ub3d9\uc791\uc744 \ubcf4\uc7a5\ud569\ub2c8\ub2e4.<\/li>\n<\/ul>\n<h3>\uc720\uccb4 \uc5ed\ud559\uc801 \uc724\ud65c\uc758 \uc218\ud559\uc801 \ubaa8\ub378\ub9c1<\/h3>\n<p>\uc720\uccb4 \uc5ed\ud559\uc801 \uc724\ud65c\uc744 \ubaa8\ub378\ub9c1\ud558\ub294 \ub370\uc5d0\ub294 \uc5ec\ub7ec \ubc29\uc815\uc2dd\uc774 \uc0ac\uc6a9\ub429\ub2c8\ub2e4. \ub300\ud45c\uc801\uc778 \uac83\uc774 \ub808\uc774\ub180\uc988 \ubc29\uc815\uc2dd(Reynolds equation)\uc785\ub2c8\ub2e4. \uc774\ub294 \uc720\uccb4 \ud544\ub984\uc758 \ub450\uaed8\uc640 \uc555\ub825\uc744 \uacc4\uc0b0\ud558\ub294 \ub370 \uc911\uc694\ud55c \uc5ed\ud560\uc744 \ud569\ub2c8\ub2e4. \ub808\uc774\ub180\uc988 \ubc29\uc815\uc2dd\uc740 \ub2e4\uc74c\uacfc \uac19\uc774 \ud45c\ud604\ub429\ub2c8\ub2e4:<\/p>\n<p>\n\\[<br \/>\n\\frac{\\partial}{\\partial x} \\left( h^3 \\frac{\\partial p}{\\partial x} \\right) + \\frac{\\partial}{\\partial y} \\left( h^3 \\frac{\\partial p}{\\partial y} \\right) = 6 \\mu (\\frac{\\partial h}{\\partial t} + U \\frac{\\partial h}{\\partial x})<br \/>\n\\]\n<\/p>\n<p>\uc5ec\uae30\uc11c <i>h<\/i>\ub294 \uc720\uccb4 \ud544\ub984\uc758 \ub450\uaed8, <i>p<\/i>\ub294 \uc720\uccb4 \uc555\ub825, <i>\\mu<\/i>\ub294 \uc720\uccb4 \uc810\ub3c4, <i>U<\/i>\ub294 \uc0c1\ub300 \uc18d\ub3c4\uc785\ub2c8\ub2e4.<\/p>\n<h3>\uacb0\ub860<\/h3>\n<p>\uae30\uacc4 \uc7a5\uce58\uc5d0\uc11c \uc720\uccb4 \uc5ed\ud559\uc801 \uc724\ud65c\uc740 \ub9c8\ucc30\uacfc \ub9c8\ubaa8\ub97c \uc904\uc5ec \uc2dc\uc2a4\ud15c\uc758 \ud6a8\uc728\uc131\uc744 \ub192\uc774\uace0 \uc218\uba85\uc744 \uc5f0\uc7a5\ud558\ub294 \ub370 \ud544\uc218\uc801\uc785\ub2c8\ub2e4. \uc774\ub97c \uc774\ud574\ud568\uc73c\ub85c\uc368 \ub354 \ub098\uc740 \uae30\uacc4 \uc124\uacc4\uc640 \uc720\uc9c0 \ubcf4\uc218\ub97c \uac00\ub2a5\ud558\uac8c \ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\uae30\uacc4 \ubd80\ud488 \uc0ac\uc774\uc758 \ub9c8\ucc30\uc744 \uc904\uc774\uace0 \ub9c8\ubaa8\ub97c \ubc29\uc9c0\ud558\uba70 \ud6a8\uc728\uc131\uacfc \uc218\uba85\uc744 \ub192\uc774\ub294 \uc720\uccb4 \uc5ed\ud559\uc801 \uc724\ud65c\uc758 \uc6d0\ub9ac \ubc0f \uc911\uc694\uc131.<\/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>\uae30\uacc4\uc5d0\uc11c\uc758 \uc720\uccb4 \uc5ed\ud559\uc801 \uc724\ud65c<\/title>\n<meta name=\"description\" content=\"\uae30\uacc4 \ubd80\ud488 \uc0ac\uc774\uc758 \ub9c8\ucc30\uc744 \uc904\uc774\uace0 \ub9c8\ubaa8\ub97c \ubc29\uc9c0\ud558\uba70 \ud6a8\uc728\uc131\uacfc \uc218\uba85\uc744 \ub192\uc774\ub294 \uc720\uccb4 \uc5ed\ud559\uc801 \uc724\ud65c\uc758 \uc6d0\ub9ac \ubc0f \uc911\uc694\uc131.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" 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