{"id":695757,"date":"2024-10-19T08:53:33","date_gmt":"2024-10-19T07:53:33","guid":{"rendered":"https:\/\/www.thermal-engineering.org\/?p=695757"},"modified":"2024-10-19T08:53:33","modified_gmt":"2024-10-19T07:53:33","slug":"giam-luc-can-trong-boi-loi","status":"publish","type":"post","link":"https:\/\/www.thermal-engineering.org\/vi\/giam-luc-can-trong-boi-loi\/","title":{"rendered":"Gi\u1ea3m l\u1ef1c c\u1ea3n trong b\u01a1i l\u1ed9i"},"content":{"rendered":"<p class=\"sidekick\">Gi\u1ea3m l\u1ef1c c\u1ea3n trong b\u01a1i l\u1ed9i: T\u00ecm hi\u1ec3u c\u00e1ch c\u00e1c k\u1ef9 thu\u1eadt nhi\u1ec7t \u0111\u1ed9ng h\u1ecdc v\u00e0 thi\u1ebft k\u1ebf \u00e1o b\u01a1i ti\u00ean ti\u1ebfn gi\u00fap gi\u1ea3m ma s\u00e1t v\u00e0 c\u1ea3i thi\u1ec7n hi\u1ec7u su\u1ea5t b\u01a1i l\u1ed9i.<\/p>\n<p><img src=\"https:\/\/www.thermal-engineering.org\/wp-content\/uploads\/2024\/07\/giam_luc_can_trong_boi_loi.png\" alt=\"Gi\u1ea3m l\u1ef1c c\u1ea3n trong b\u01a1i l\u1ed9i\" style=\"display: block; margin-left: auto; margin-right: auto;\"\/><\/p>\n<h2>Gi\u1ea3m L\u1ef1c C\u1ea3n Trong B\u01a1i L\u1ed9i<\/h2>\n<p>Trong b\u01a1i l\u1ed9i, l\u1ef1c c\u1ea3n n\u01b0\u1edbc l\u00e0 m\u1ed9t y\u1ebfu t\u1ed1 quan tr\u1ecdng \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn t\u1ed1c \u0111\u1ed9 c\u1ee7a v\u1eadn \u0111\u1ed9ng vi\u00ean. Vi\u1ec7c gi\u1ea3m l\u1ef1c c\u1ea3n n\u00e0y kh\u00f4ng ch\u1ec9 gi\u00fap b\u01a1i l\u1ed9i nhanh h\u01a1n m\u00e0 c\u00f2n \u00edt t\u1ed1n s\u1ee9c h\u01a1n. B\u00e0i vi\u1ebft n\u00e0y s\u1ebd \u0111i s\u00e2u v\u00e0o c\u00e1ch gi\u1ea3m l\u1ef1c c\u1ea3n trong b\u01a1i l\u1ed9i b\u1eb1ng c\u00e1c ph\u01b0\u01a1ng ph\u00e1p k\u1ef9 thu\u1eadt c\u0169ng nh\u01b0 c\u00e1c thi\u1ebft b\u1ecb h\u1ed7 tr\u1ee3.<\/p>\n<h2>C\u00e1c Y\u1ebfu T\u1ed1 G\u00e2y L\u1ef1c C\u1ea3n Trong B\u01a1i L\u1ed9i<\/h2>\n<ul>\n<li><strong>H\u00ecnh d\u00e1ng c\u01a1 th\u1ec3<\/strong>: H\u00ecnh d\u00e1ng c\u01a1 th\u1ec3 v\u1eadn \u0111\u1ed9ng vi\u00ean v\u00e0 c\u00e1ch h\u1ecd di chuy\u1ec3n trong n\u01b0\u1edbc \u1ea3nh h\u01b0\u1edfng l\u1edbn \u0111\u1ebfn l\u1ef1c c\u1ea3n.<\/li>\n<li><strong>B\u1ec1 m\u1eb7t c\u01a1 th\u1ec3<\/strong>: L\u00f4ng ho\u1eb7c \u00e1o b\u01a1i kh\u00f4ng ph\u00f9 h\u1ee3p c\u00f3 th\u1ec3 t\u0103ng th\u00eam l\u1ef1c c\u1ea3n.<\/li>\n<li><strong>Thi\u1ebft b\u1ecb h\u1ed7 tr\u1ee3<\/strong>: K\u00ednh b\u01a1i, n\u00f3n b\u01a1i v\u00e0 \u00e1o b\u01a1i c\u0169ng c\u00f3 th\u1ec3 g\u00e2y ra ho\u1eb7c gi\u1ea3m l\u1ef1c c\u1ea3n.<\/li>\n<\/ul>\n<h2>Ph\u01b0\u01a1ng Ph\u00e1p Gi\u1ea3m L\u1ef1c C\u1ea3n<\/h2>\n<ol>\n<li><strong>T\u0103ng c\u01b0\u1eddng th\u1ec3 l\u1ef1c v\u00e0 k\u1ef9 thu\u1eadt b\u01a1i<\/strong>: Th\u1ef1c hi\u1ec7n c\u00e1c \u0111\u1ed9ng t\u00e1c k\u1ef9 thu\u1eadt ch\u00ednh x\u00e1c v\u00e0 t\u1ed1i \u01b0u h\u00f3a t\u01b0 th\u1ebf c\u01a1 th\u1ec3 trong n\u01b0\u1edbc c\u00f3 th\u1ec3 gi\u1ea3m l\u1ef1c c\u1ea3n. V\u00ed d\u1ee5, gi\u1eef c\u01a1 th\u1ec3 th\u1eb3ng v\u00e0 t\u1ea1o ra \u00edt g\u1ee3n s\u00f3ng khi di chuy\u1ec3n.<\/li>\n<li><strong>S\u1eed d\u1ee5ng \u00e1o b\u01a1i c\u00f4ng ngh\u1ec7 cao<\/strong>: C\u00e1c lo\u1ea1i \u00e1o b\u01a1i \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1eb7c bi\u1ec7t gi\u00fap gi\u1ea3m ma s\u00e1t gi\u1eefa c\u01a1 th\u1ec3 v\u00e0 n\u01b0\u1edbc. C\u00e1c lo\u1ea1i v\u1ea3i nh\u01b0 polyurethane v\u00e0 nylon th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng v\u00ec ch\u00fang c\u00f3 b\u1ec1 m\u1eb7t tr\u01a1n l\u00e1ng v\u00e0 \u0111\u00e0n h\u1ed3i t\u1ed1t.<\/li>\n<li><strong>Th\u1ef1c hi\u1ec7n c\u1ea1o l\u00f4ng c\u01a1 th\u1ec3<\/strong>: L\u00f4ng c\u01a1 th\u1ec3 kh\u00f4ng ch\u1ec9 l\u00e0m t\u0103ng l\u1ef1c c\u1ea3n m\u00e0 c\u00f2n gi\u1eef l\u1ea1i n\u01b0\u1edbc l\u00e0m t\u0103ng th\u00eam tr\u1ecdng l\u01b0\u1ee3ng khi b\u01a1i. Vi\u1ec7c c\u1ea1o l\u00f4ng c\u01a1 th\u1ec3 s\u1ebd c\u1ea3i thi\u1ec7n \u0111\u00e1ng k\u1ec3 t\u1ed1c \u0111\u1ed9.<\/li>\n<li><strong>S\u1eed d\u1ee5ng c\u00e1c thi\u1ebft b\u1ecb h\u1ed7 tr\u1ee3 nh\u01b0 n\u00f3n b\u01a1i v\u00e0 k\u00ednh b\u01a1i<\/strong>: M\u1ed9t chi\u1ebfc n\u00f3n b\u01a1i c\u00f3 thi\u1ebft k\u1ebf kh\u00ed \u0111\u1ed9ng h\u1ecdc s\u1ebd gi\u1ea3m ma s\u00e1t v\u1edbi n\u01b0\u1edbc. K\u00ednh b\u01a1i th\u00ec kh\u00f4ng ch\u1ec9 b\u1ea3o v\u1ec7 m\u1eaft m\u00e0 c\u00f2n t\u0103ng c\u01b0\u1eddng t\u1ea7m nh\u00ecn, gi\u00fap b\u01a1i l\u1ed9i hi\u1ec7u qu\u1ea3 h\u01a1n.<\/li>\n<\/ol>\n<h2>L\u1ef1c C\u1ea3n C\u01a1 B\u1ea3n Trong B\u01a1i L\u1ed9i<\/h2>\n<p>L\u1ef1c c\u1ea3n trong b\u01a1i l\u1ed9i \u0111\u01b0\u1ee3c chia th\u00e0nh ba lo\u1ea1i ch\u00ednh:<\/p>\n<ol>\n<li><strong>L\u1ef1c c\u1ea3n ma s\u00e1t<\/strong>: K\u1ebft qu\u1ea3 c\u1ee7a vi\u1ec7c n\u01b0\u1edbc di chuy\u1ec3n qua b\u1ec1 m\u1eb7t c\u01a1 th\u1ec3 v\u1eadn \u0111\u1ed9ng vi\u00ean.<\/li>\n<li><strong>L\u1ef1c c\u1ea3n \u00e1p l\u1ef1c<\/strong>: X\u1ea3y ra khi n\u01b0\u1edbc ch\u1ea3y quanh c\u01a1 th\u1ec3 t\u1ea1o ra c\u00e1c v\u00f9ng \u00e1p l\u1ef1c cao v\u00e0 th\u1ea5p.<\/li>\n<li><strong>L\u1ef1c c\u1ea3n s\u00f3ng<\/strong>: Do s\u00f3ng n\u01b0\u1edbc \u0111\u01b0\u1ee3c t\u1ea1o ra b\u1edfi s\u1ef1 di chuy\u1ec3n c\u1ee7a v\u1eadn \u0111\u1ed9ng vi\u00ean.<\/li>\n<\/ol>\n<p>\u0110\u1ec3 minh h\u1ecda r\u00f5 h\u01a1n, c\u00f4ng th\u1ee9c t\u00ednh l\u1ef1c c\u1ea3n c\u0103n b\u1ea3n \\( F \\) c\u00f3 th\u1ec3 bi\u1ec3u th\u1ecb nh\u01b0 sau:<\/p>\n<p>F = \\frac{1}{2} * C * \\rho * A * V^2<\/p>\n<p>Trong \u0111\u00f3:<\/p>\n<ul>\n<li>F: L\u1ef1c c\u1ea3n<\/li>\n<li>C: H\u1ec7 s\u1ed1 l\u1ef1c c\u1ea3n<\/li>\n<li>\\(\\rho\\): M\u1eadt \u0111\u1ed9 ch\u1ea5t l\u1ecfng<\/li>\n<li>A: Di\u1ec7n t\u00edch m\u1eb7t c\u1eaft ngang c\u1ee7a c\u01a1 th\u1ec3<\/li>\n<li>V: V\u1eadn t\u1ed1c di chuy\u1ec3n c\u1ee7a c\u01a1 th\u1ec3<\/li>\n<\/ul>\n<h2>K\u1ebft Lu\u1eadn<\/h2>\n<p>Vi\u1ec7c gi\u1ea3m l\u1ef1c c\u1ea3n trong b\u01a1i l\u1ed9i l\u00e0 m\u1ed9t y\u1ebfu t\u1ed1 quan tr\u1ecdng \u0111\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c hi\u1ec7u su\u1ea5t t\u1ed1i \u01b0u. B\u1eb1ng c\u00e1ch \u00e1p d\u1ee5ng c\u00e1c ph\u01b0\u01a1ng ph\u00e1p k\u1ef9 thu\u1eadt ch\u00ednh x\u00e1c, s\u1eed d\u1ee5ng \u00e1o b\u01a1i v\u00e0 thi\u1ebft b\u1ecb h\u1ed7 tr\u1ee3 ph\u00f9 h\u1ee3p, v\u1eadn \u0111\u1ed9ng vi\u00ean c\u00f3 th\u1ec3 gi\u1ea3m thi\u1ec3u l\u1ef1c c\u1ea3n v\u00e0 c\u1ea3i thi\u1ec7n t\u1ed1c \u0111\u1ed9 b\u01a1i l\u1ed9i.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Gi\u1ea3m l\u1ef1c c\u1ea3n trong b\u01a1i l\u1ed9i: T\u00ecm hi\u1ec3u c\u00e1ch c\u00e1c k\u1ef9 thu\u1eadt nhi\u1ec7t \u0111\u1ed9ng h\u1ecdc v\u00e0 thi\u1ebft k\u1ebf \u00e1o b\u01a1i ti\u00ean ti\u1ebfn gi\u00fap gi\u1ea3m ma s\u00e1t v\u00e0 c\u1ea3i thi\u1ec7n hi\u1ec7u su\u1ea5t b\u01a1i l\u1ed9i.<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[132],"tags":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v15.4 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