{"id":696672,"date":"2024-08-01T02:28:00","date_gmt":"2024-08-01T01:28:00","guid":{"rendered":"https:\/\/www.thermal-engineering.org\/?p=696672"},"modified":"2024-08-01T02:28:00","modified_gmt":"2024-08-01T01:28:00","slug":"dong-luc-chat-long-cua-tuyet-va-lo-tuyet","status":"publish","type":"post","link":"https:\/\/www.thermal-engineering.org\/vi\/dong-luc-chat-long-cua-tuyet-va-lo-tuyet\/","title":{"rendered":"\u0110\u1ed9ng l\u1ef1c ch\u1ea5t l\u1ecfng c\u1ee7a tuy\u1ebft v\u00e0 l\u1edf tuy\u1ebft"},"content":{"rendered":"<p class=\"sidekick\">\u0110\u1ed9ng l\u1ef1c ch\u1ea5t l\u1ecfng c\u1ee7a tuy\u1ebft v\u00e0 l\u1edf tuy\u1ebft: t\u00ecm hi\u1ec3u v\u1ec1 s\u1ef1 di chuy\u1ec3n v\u00e0 t\u01b0\u01a1ng t\u00e1c c\u1ee7a tuy\u1ebft trong m\u00f4i tr\u01b0\u1eddng nhi\u1ec7t, c\u00f9ng c\u00e1ch \u0111i\u1ec1u ch\u1ec9nh v\u00e0 ng\u0103n ng\u1eeba l\u1edf tuy\u1ebft.<\/p>\n<p><img src=\"https:\/\/www.thermal-engineering.org\/wp-content\/uploads\/2024\/07\/dong_luc_chat_long_cua_tuyet_va_lo_tuyet.png\" alt=\"\u0110\u1ed9ng l\u1ef1c ch\u1ea5t l\u1ecfng c\u1ee7a tuy\u1ebft v\u00e0 l\u1edf tuy\u1ebft\" style=\"display: block; margin-left: auto; margin-right: auto;\"\/><\/p>\n<h2>\u0110\u1ed9ng l\u1ef1c ch\u1ea5t l\u1ecfng c\u1ee7a tuy\u1ebft v\u00e0 l\u1edf tuy\u1ebft<\/h2>\n<p>\u0110\u1ed9ng l\u1ef1c ch\u1ea5t l\u1ecfng l\u00e0 m\u1ed9t ng\u00e0nh h\u1ecdc c\u1ee7a c\u01a1 h\u1ecdc ch\u1ea5t l\u1ecfng t\u1eadp trung v\u00e0o h\u00e0nh vi c\u1ee7a c\u00e1c ch\u1ea5t l\u1ecfng v\u00e0 kh\u00ed trong tr\u1ea1ng th\u00e1i chuy\u1ec3n \u0111\u1ed9ng. Trong b\u1ed1i c\u1ea3nh nhi\u1ec7t h\u1ecdc, ch\u00fang ta s\u1ebd t\u00ecm hi\u1ec3u v\u1ec1 \u0111\u1ed9ng l\u1ef1c c\u1ee7a tuy\u1ebft v\u00e0 hi\u1ec7n t\u01b0\u1ee3ng l\u1edf tuy\u1ebft.<\/p>\n<h2>Tuy\u1ebft v\u00e0 c\u1ea5u tr\u00fac ch\u1ea5t l\u1ecfng c\u1ee7a n\u00f3<\/h2>\n<p>Tuy\u1ebft l\u00e0 m\u1ed9t d\u1ea1ng c\u1ee7a n\u01b0\u1edbc trong tr\u1ea1ng th\u00e1i r\u1eafn k\u1ebft tinh. Khi c\u00e1c tinh th\u1ec3 tuy\u1ebft k\u1ebft h\u1ee3p v\u1edbi nhau, ch\u00fang t\u1ea1o ra m\u1ed9t c\u1ea5u tr\u00fac ph\u1ee9c t\u1ea1p g\u1ed3m kh\u00f4ng kh\u00ed v\u00e0 b\u0103ng. M\u1eadt \u0111\u1ed9 v\u00e0 t\u00ednh ch\u1ea5t c\u1ee7a tuy\u1ebft ph\u1ee5 thu\u1ed9c v\u00e0o nhi\u1ec7t \u0111\u1ed9 v\u00e0 \u0111i\u1ec1u ki\u1ec7n kh\u00ed h\u1eadu.<\/p>\n<ul>\n<li>Tr\u1ecdng l\u01b0\u1ee3ng ri\u00eang c\u1ee7a tuy\u1ebft m\u1edbi r\u01a1i th\u01b0\u1eddng l\u00e0 kho\u1ea3ng 50-200 kg\/m<sup>3<\/sup>.<\/li>\n<li>Tuy\u1ebft c\u0169 v\u00e0 n\u00e9n c\u00f3 th\u1ec3 c\u00f3 tr\u1ecdng l\u01b0\u1ee3ng ri\u00eang t\u1eeb 200-600 kg\/m<sup>3<\/sup>.<\/li>\n<\/ul>\n<p>Trong \u0111i\u1ec1u ki\u1ec7n chuy\u1ec3n \u0111\u1ed9ng, c\u00e1c h\u1ea1t tuy\u1ebft c\u00f3 th\u1ec3 di chuy\u1ec3n v\u00e0 t\u01b0\u01a1ng t\u00e1c v\u1edbi nhau t\u1ea1o ra hi\u1ec7n t\u01b0\u1ee3ng gi\u1ed1ng nh\u01b0 ch\u1ea5t l\u1ecfng. \u0110\u00e2y l\u00e0 m\u1ed9t \u0111\u1eb7c \u0111i\u1ec3m quan tr\u1ecdng trong vi\u1ec7c hi\u1ec3u v\u00e0 d\u1ef1 \u0111o\u00e1n hi\u1ec7n t\u01b0\u1ee3ng l\u1edf tuy\u1ebft.<\/p>\n<h2>Hi\u1ec7n t\u01b0\u1ee3ng l\u1edf tuy\u1ebft<\/h2>\n<p>L\u1edf tuy\u1ebft l\u00e0 m\u1ed9t qu\u00e1 tr\u00ecnh t\u1ef1 nhi\u00ean khi m\u1ed9t l\u1edbp tuy\u1ebft b\u1ea5t \u1ed5n b\u1eaft \u0111\u1ea7u tr\u01b0\u1ee3t xu\u1ed1ng d\u01b0\u1edbi t\u00e1c \u0111\u1ed9ng c\u1ee7a l\u1ef1c h\u1ea5p d\u1eabn. Qu\u00e1 tr\u00ecnh n\u00e0y b\u1eaft \u0111\u1ea7u khi s\u1ee9c ch\u1ecbu c\u1ee7a c\u00e1c l\u1edbp tuy\u1ebft tr\u00ean b\u1ec1 m\u1eb7t n\u00fai kh\u00f4ng th\u1ec3 ch\u1ed1ng l\u1ea1i l\u1ef1c tr\u01b0\u1ee3t.<\/p>\n<ol>\n<li><strong>B\u1eaft \u0111\u1ea7u:<\/strong> M\u1ed9t l\u1edbp tuy\u1ebft y\u1ebfu ho\u1eb7c m\u1ed9t l\u1ef1c k\u00edch th\u00edch (v\u00ed d\u1ee5 nh\u01b0 s\u1ef1 rung \u0111\u1ed9ng ho\u1eb7c m\u1ed9t l\u01b0\u1ee3ng tuy\u1ebft m\u1edbi) c\u00f3 th\u1ec3 l\u00e0m cho l\u1edbp tuy\u1ebft tr\u00ean c\u00f9ng tr\u01b0\u1ee3t xu\u1ed1ng.<\/li>\n<li><strong>T\u00edch l\u0169y:<\/strong> Khi m\u1ed9t l\u1edbp tuy\u1ebft b\u1eaft \u0111\u1ea7u tr\u01b0\u1ee3t, n\u00f3 k\u00e9o theo c\u00e1c l\u1edbp tuy\u1ebft b\u00ean d\u01b0\u1edbi, t\u1ea1o ra m\u1ed9t d\u00f2ng ch\u1ea3y l\u1edbn h\u01a1n.<\/li>\n<li><strong>Chuy\u1ec3n \u0111\u1ed9ng:<\/strong> Tuy\u1ebft ch\u1ea3y xu\u1ed1ng v\u1edbi v\u1eadn t\u1ed1c c\u00f3 th\u1ec3 l\u00ean \u0111\u1ebfn h\u00e0ng tr\u0103m km\/h, mang theo s\u1ee9c m\u1ea1nh ph\u00e1 h\u1ee7y l\u1edbn.<\/li>\n<\/ol>\n<h2>\u0110\u1ed9ng l\u1ef1c ch\u1ea5t l\u1ecfng trong l\u1edf tuy\u1ebft<\/h2>\n<p>Khi ph\u00e2n t\u00edch m\u1ed9t tr\u1eadn l\u1edf tuy\u1ebft t\u1eeb g\u00f3c nh\u00ecn \u0111\u1ed9ng l\u1ef1c h\u1ecdc ch\u1ea5t l\u1ecfng, c\u00e1c y\u1ebfu t\u1ed1 ch\u00ednh bao g\u1ed3m:<\/p>\n<ul>\n<li><strong>L\u1ef1c h\u1ea5p d\u1eabn (g):<\/strong> \u0110\u00e2y l\u00e0 l\u1ef1c ch\u00ednh khi\u1ebfn tuy\u1ebft tr\u01b0\u1ee3t xu\u1ed1ng \u0111\u1ed3i. C\u00f4ng th\u1ee9c c\u01a1 b\u1ea3n: \\( g \\approx 9.8 \\, m\/s^2 \\).<\/li>\n<li><strong>L\u1ef1c ma s\u00e1t (f):<\/strong> L\u1ef1c n\u00e0y ch\u1ed1ng l\u1ea1i chuy\u1ec3n \u0111\u1ed9ng c\u1ee7a tuy\u1ebft. Ma s\u00e1t gi\u1eefa tuy\u1ebft v\u00e0 b\u1ec1 m\u1eb7t \u0111\u1ed3i c\u00f3 th\u1ec3 ph\u1ee5 thu\u1ed9c v\u00e0o nhi\u1ec7t \u0111\u1ed9, \u0111\u1ed9 \u1ea9m v\u00e0 c\u1ea5u tr\u00fac b\u1ec1 m\u1eb7t.<\/li>\n<li><strong>L\u1ef1c tr\u01b0\u1ee3t (T):<\/strong> L\u1ef1c n\u00e0y \u0111\u01b0\u1ee3c t\u1ea1o ra b\u1edfi tr\u1ecdng l\u01b0\u1ee3ng c\u1ee7a l\u1edbp tuy\u1ebft tr\u00ean c\u00f9ng h\u01b0\u1edbng xu\u1ed1ng d\u1ed1c. N\u00f3 k\u00edch ho\u1ea1t s\u1ef1 tr\u01b0\u1ee3t c\u1ee7a l\u1edbp tuy\u1ebft y\u1ebfu b\u00ean d\u01b0\u1edbi. C\u00f4ng th\u1ee9c: T = m * g * sin(\u03b8), trong \u0111\u00f3 m l\u00e0 kh\u1ed1i l\u01b0\u1ee3ng c\u1ee7a l\u1edbp tuy\u1ebft, g l\u00e0 gia t\u1ed1c tr\u1ecdng tr\u01b0\u1eddng, v\u00e0 \u03b8 l\u00e0 g\u00f3c d\u1ed1c c\u1ee7a s\u01b0\u1eddn n\u00fai.<\/li>\n<li><strong>\u00c1p su\u1ea5t:<\/strong> Khi kh\u1ed1i l\u01b0\u1ee3ng tuy\u1ebft t\u00edch l\u0169y, \u00e1p su\u1ea5t t\u0103ng l\u00ean v\u00e0 l\u00e0m y\u1ebfu c\u00e1c l\u1edbp tuy\u1ebft b\u00ean d\u01b0\u1edbi, d\u1eabn \u0111\u1ebfn s\u1ef1 s\u1ee5p \u0111\u1ed5.<\/li>\n<\/ul>\n<p>Vi\u1ec7c hi\u1ec3u r\u00f5 c\u00e1c y\u1ebfu t\u1ed1 n\u00e0y gi\u00fap c\u00e1c nh\u00e0 khoa h\u1ecdc v\u00e0 k\u1ef9 s\u01b0 ph\u00e1t tri\u1ec3n c\u00e1c m\u00f4 h\u00ecnh d\u1ef1 b\u00e1o l\u1edf tuy\u1ebft, t\u0103ng c\u01b0\u1eddng kh\u1ea3 n\u0103ng c\u1ea3nh b\u00e1o v\u00e0 gi\u1ea3m thi\u1ec3u thi\u1ec7t h\u1ea1i do l\u1edf tuy\u1ebft g\u00e2y ra.<\/p>\n<h2>K\u1ebft lu\u1eadn<\/h2>\n<p>\u0110\u1ed9ng l\u1ef1c ch\u1ea5t l\u1ecfng c\u1ee7a tuy\u1ebft v\u00e0 l\u1edf tuy\u1ebft l\u00e0 m\u1ed9t l\u0129nh v\u1ef1c nghi\u00ean c\u1ee9u quan tr\u1ecdng trong ng\u00e0nh nhi\u1ec7t h\u1ecdc v\u00e0 c\u01a1 h\u1ecdc ch\u1ea5t l\u1ecfng. N\u00f3 kh\u00f4ng ch\u1ec9 gi\u00fap ch\u00fang ta hi\u1ec3u r\u00f5 h\u01a1n v\u1ec1 qu\u00e1 tr\u00ecnh t\u1ef1 nhi\u00ean n\u00e0y m\u00e0 c\u00f2n g\u00f3p ph\u1ea7n v\u00e0o vi\u1ec7c ph\u00e1t tri\u1ec3n c\u00e1c bi\u1ec7n ph\u00e1p an to\u00e0n v\u00e0 d\u1ef1 b\u00e1o hi\u1ec7u qu\u1ea3, b\u1ea3o v\u1ec7 con ng\u01b0\u1eddi v\u00e0 t\u00e0i s\u1ea3n tr\u01b0\u1edbc nguy c\u01a1 l\u1edf tuy\u1ebft.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u0110\u1ed9ng l\u1ef1c ch\u1ea5t l\u1ecfng c\u1ee7a tuy\u1ebft v\u00e0 l\u1edf tuy\u1ebft: t\u00ecm hi\u1ec3u v\u1ec1 s\u1ef1 di chuy\u1ec3n v\u00e0 t\u01b0\u01a1ng t\u00e1c c\u1ee7a tuy\u1ebft trong m\u00f4i tr\u01b0\u1eddng nhi\u1ec7t, c\u00f9ng c\u00e1ch \u0111i\u1ec1u ch\u1ec9nh v\u00e0 ng\u0103n ng\u1eeba l\u1edf tuy\u1ebft.<\/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 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>\u0110\u1ed9ng l\u1ef1c ch\u1ea5t l\u1ecfng c\u1ee7a tuy\u1ebft v\u00e0 l\u1edf tuy\u1ebft<\/title>\n<meta name=\"description\" content=\"\u0110\u1ed9ng l\u1ef1c ch\u1ea5t l\u1ecfng c\u1ee7a tuy\u1ebft v\u00e0 l\u1edf tuy\u1ebft: t\u00ecm hi\u1ec3u v\u1ec1 s\u1ef1 di chuy\u1ec3n v\u00e0 t\u01b0\u01a1ng t\u00e1c c\u1ee7a tuy\u1ebft trong m\u00f4i tr\u01b0\u1eddng nhi\u1ec7t, c\u00f9ng c\u00e1ch \u0111i\u1ec1u ch\u1ec9nh v\u00e0 ng\u0103n ng\u1eeba l\u1edf tuy\u1ebft.\" \/>\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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