{"id":689214,"date":"2024-11-23T20:13:54","date_gmt":"2024-11-23T19:13:54","guid":{"rendered":"https:\/\/www.thermal-engineering.org\/?p=689214"},"modified":"2024-11-23T20:13:54","modified_gmt":"2024-11-23T19:13:54","slug":"chat-long-phi-newton-tinh-chat-doc-dao-ung-dung","status":"publish","type":"post","link":"https:\/\/www.thermal-engineering.org\/vi\/chat-long-phi-newton-tinh-chat-doc-dao-ung-dung\/","title":{"rendered":"Ch\u1ea5t l\u1ecfng phi Newton | T\u00ednh ch\u1ea5t \u0111\u1ed9c \u0111\u00e1o &#038; \u1ee8ng d\u1ee5ng"},"content":{"rendered":"<p class=\"sidekick\">Ch\u1ea5t l\u1ecfng phi Newton | T\u00ednh ch\u1ea5t \u0111\u1ed9c \u0111\u00e1o &#038; \u1ee8ng d\u1ee5ng: Kh\u00e1m ph\u00e1 ch\u1ea5t l\u1ecfng c\u00f3 t\u00ednh ch\u1ea5t bi\u1ebfn \u0111\u1ed5i khi ch\u1ecbu l\u1ef1c, \u1ee9ng d\u1ee5ng trong y h\u1ecdc, c\u00f4ng nghi\u1ec7p v\u00e0 nhi\u1ec1u l\u0129nh v\u1ef1c kh\u00e1c.<\/p>\n<p><img src=\"https:\/\/www.thermal-engineering.org\/wp-content\/uploads\/2024\/07\/chat_long_phi_newton_tinh_chat_doc_dao_ung_dung.png\" alt=\"Ch\u1ea5t l\u1ecfng phi Newton | T\u00ednh ch\u1ea5t \u0111\u1ed9c \u0111\u00e1o &#038; \u1ee8ng d\u1ee5ng\" style=\"display: block; margin-left: auto; margin-right: auto;\"\/><\/p>\n<h2>Ch\u1ea5t l\u1ecfng phi Newton: T\u00ednh ch\u1ea5t \u0111\u1ed9c \u0111\u00e1o v\u00e0 \u1ee8ng d\u1ee5ng<\/h2>\n<p>Ch\u1eafc h\u1eb3n b\u1ea1n \u0111\u00e3 quen thu\u1ed9c v\u1edbi n\u01b0\u1edbc, d\u1ea7u hay m\u1eadt ong \u2013 nh\u1eefng ch\u1ea5t l\u1ecfng m\u00e0 t\u00ednh ch\u1ea5t d\u00f2ng ch\u1ea3y c\u1ee7a ch\u00fang tu\u00e2n theo \u0111\u1ecbnh lu\u1eadt Newton. Tuy nhi\u00ean, c\u00f2n c\u00f3 m\u1ed9t lo\u1ea1i ch\u1ea5t l\u1ecfng \u0111\u1eb7c bi\u1ec7t kh\u00e1c g\u1ecdi l\u00e0 <b>ch\u1ea5t l\u1ecfng phi Newton<\/b>, m\u00e0 t\u00ednh ch\u1ea5t d\u00f2ng ch\u1ea3y c\u1ee7a ch\u00fang kh\u00f4ng tu\u00e2n theo \u0111\u1ecbnh lu\u1eadt Newton. V\u1eady ch\u1ea5t l\u1ecfng phi Newton c\u00f3 g\u00ec \u0111\u1eb7c bi\u1ec7t v\u00e0 ch\u00fang \u0111\u01b0\u1ee3c \u1ee9ng d\u1ee5ng nh\u01b0 th\u1ebf n\u00e0o? H\u00e3y c\u00f9ng t\u00ecm hi\u1ec3u qua b\u00e0i vi\u1ebft d\u01b0\u1edbi \u0111\u00e2y.<\/p>\n<h2>T\u00ednh ch\u1ea5t \u0111\u1ed9c \u0111\u00e1o c\u1ee7a ch\u1ea5t l\u1ecfng phi Newton<\/h2>\n<p>M\u1ed9t ch\u1ea5t l\u1ecfng Newton s\u1ebd c\u00f3 \u0111\u1ed9 nh\u1edbt kh\u00f4ng \u0111\u1ed5i, ngh\u0129a l\u00e0 t\u1ed1c \u0111\u1ed9 d\u00f2ng ch\u1ea3y c\u1ee7a n\u00f3 tuy\u1ebfn t\u00ednh v\u1edbi \u1ee9ng su\u1ea5t tr\u01b0\u1ee3t. N\u01b0\u1edbc l\u00e0 m\u1ed9t v\u00ed d\u1ee5 \u0111i\u1ec3n h\u00ecnh; khi b\u1ea1n khu\u1ea5y n\u01b0\u1edbc, \u00e1p l\u1ef1c m\u00e0 b\u1ea1n d\u00f9ng c\u00e0ng m\u1ea1nh, n\u01b0\u1edbc di chuy\u1ec3n c\u00e0ng nhanh.<\/p>\n<p>Ng\u01b0\u1ee3c l\u1ea1i, ch\u1ea5t l\u1ecfng phi Newton c\u00f3 <i>\u0111\u1ed9 nh\u1edbt thay \u0111\u1ed5i<\/i> v\u1edbi \u1ee9ng su\u1ea5t tr\u01b0\u1ee3t. \u0110i\u1ec1u n\u00e0y c\u00f3 ngh\u0129a l\u00e0 t\u1ed1c \u0111\u1ed9 d\u00f2ng ch\u1ea3y c\u1ee7a ch\u00fang kh\u00f4ng tuy\u1ebfn t\u00ednh v\u1edbi l\u1ef1c t\u00e1c \u0111\u1ed9ng. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 m\u1ed9t s\u1ed1 lo\u1ea1i ch\u1ea5t l\u1ecfng phi Newton ph\u1ed5 bi\u1ebfn:<\/p>\n<ul>\n<li><b>Ch\u1ea5t l\u1ecfng gi\u00e3n n\u1edf (Dilatant Fluids):<\/b> \u0110\u1ed9 nh\u1edbt t\u0103ng khi t\u0103ng \u1ee9ng su\u1ea5t tr\u01b0\u1ee3t. V\u00ed d\u1ee5 \u0111i\u1ec3n h\u00ecnh l\u00e0 h\u1ed7n h\u1ee3p b\u1ed9t b\u1eafp v\u00e0 n\u01b0\u1edbc.<\/li>\n<li><b>Ch\u1ea5t l\u1ecfng gi\u1ea3m \u0111\u1ed9 nh\u1edbt (Pseudoplastic Fluids):<\/b> \u0110\u1ed9 nh\u1edbt gi\u1ea3m khi t\u0103ng \u1ee9ng su\u1ea5t tr\u01b0\u1ee3t. Nh\u0169 t\u01b0\u01a1ng v\u00e0 m\u1eadt ong l\u00e0 v\u00ed d\u1ee5 c\u1ee7a lo\u1ea1i ch\u1ea5t l\u1ecfng n\u00e0y.<\/li>\n<li><b>Ch\u1ea5t l\u1ecfng c\u00f3 ng\u01b0\u1ee1ng: <\/b> C\u1ea7n m\u1ed9t ng\u01b0\u1ee1ng \u1ee9ng su\u1ea5t nh\u1ea5t \u0111\u1ecbnh m\u1edbi b\u1eaft \u0111\u1ea7u ch\u1ea3y. Kem \u0111\u00e1nh r\u0103ng v\u00e0 b\u01a1 \u0111\u1eadu ph\u1ed9ng thu\u1ed9c lo\u1ea1i n\u00e0y.<\/li>\n<\/ul>\n<p>C\u00f3 th\u1ec3 m\u00f4 t\u1ea3 c\u00e1c t\u00ednh ch\u1ea5t n\u00e0y b\u1eb1ng c\u00e1c ph\u01b0\u01a1ng tr\u00ecnh \u0111\u01a1n gi\u1ea3n, v\u00ed d\u1ee5:<\/p>\n<p style=\"text-align: center;\">\\[ \\eta = \\frac{\\tau}{\\gamma} \\]\n<p>\u1ede \u0111\u00e2y, \\(\\eta\\) l\u00e0 \u0111\u1ed9 nh\u1edbt, \\(\\tau\\) l\u00e0 \u1ee9ng su\u1ea5t tr\u01b0\u1ee3t, v\u00e0 \\(\\gamma\\) l\u00e0 t\u1ed1c \u0111\u1ed9 c\u1eaft. \u0110\u1ed1i v\u1edbi ch\u1ea5t l\u1ecfng phi Newton, \\(\\eta\\) kh\u00f4ng ph\u1ea3i l\u00e0 h\u1eb1ng s\u1ed1.<\/p>\n<h2>\u1ee8ng d\u1ee5ng c\u1ee7a ch\u1ea5t l\u1ecfng phi Newton<\/h2>\n<p>Ch\u1ea5t l\u1ecfng phi Newton c\u00f3 r\u1ea5t nhi\u1ec1u \u1ee9ng d\u1ee5ng trong cu\u1ed9c s\u1ed1ng v\u00e0 c\u00f4ng nghi\u1ec7p:<\/p>\n<ul>\n<li><b>C\u00e1c s\u1ea3n ph\u1ea9m ch\u0103m s\u00f3c c\u00e1 nh\u00e2n:<\/b> Kem \u0111\u00e1nh r\u0103ng, s\u1eefa t\u1eafm v\u00e0 nhi\u1ec1u s\u1ea3n ph\u1ea9m kh\u00e1c s\u1eed d\u1ee5ng c\u00e1c t\u00ednh ch\u1ea5t phi Newton \u0111\u1ec3 d\u1ec5 d\u00e0ng n\u1eafn b\u00f3p t\u1eeb \u1ed1ng nh\u01b0ng kh\u00f4ng qu\u00e1 l\u1ecfng.<\/li>\n<li><b>Ng\u00e0nh th\u1ef1c ph\u1ea9m:<\/b> Nhi\u1ec1u lo\u1ea1i n\u01b0\u1edbc s\u1ed1t v\u00e0 kem c\u00f3 t\u00ednh ch\u1ea5t phi Newton \u0111\u1ec3 duy tr\u00ec k\u1ebft c\u1ea5u v\u00e0 \u0111\u1ed9 \u0111\u1eb7c l\u00fd t\u01b0\u1edfng.<\/li>\n<li><b>C\u00f4ng ngh\u1ec7 an to\u00e0n:<\/b> M\u1ed9t s\u1ed1 lo\u1ea1i keo gi\u00fap ch\u1ed1ng \u0111\u1ee1 va ch\u1ea1m, nh\u1edd t\u00ednh ch\u1ea5t ch\u1ed1ng l\u1ea1i l\u1ef1c m\u1ea1nh m\u1ebd nh\u01b0ng m\u1ec1m d\u1ebbo trong \u0111i\u1ec1u ki\u1ec7n th\u01b0\u1eddng.<\/li>\n<li><b>\u1ee8ng d\u1ee5ng y h\u1ecdc:<\/b> C\u00e1c dung d\u1ecbch ti\u00eam t\u0129nh m\u1ea1ch v\u00e0 thu\u1ed1c b\u00f4i y\u00eau c\u1ea7u t\u00ednh ch\u1ea5t phi Newton \u0111\u1ec3 d\u1ec5 d\u00e0ng ki\u1ec3m so\u00e1t li\u1ec1u l\u01b0\u1ee3ng.<\/li>\n<\/ul>\n<p>Th\u1eadt k\u1ef3 l\u1ea1 ph\u1ea3i kh\u00f4ng khi m\u1ed9t th\u1ee9 \u0111\u01a1n gi\u1ea3n nh\u01b0 &#8220;ch\u1ea5t l\u1ecfng&#8221; l\u1ea1i c\u00f3 th\u1ec3 tr\u1edf n\u00ean ph\u1ee9c t\u1ea1p v\u00e0 th\u00fa v\u1ecb \u0111\u1ebfn v\u1eady? Ch\u1ea5t l\u1ecfng phi Newton kh\u00f4ng ch\u1ec9 m\u1edf ra th\u1ebf gi\u1edbi c\u1ee7a nh\u1eefng hi\u1ec7n t\u01b0\u1ee3ng kh\u00f3 hi\u1ec3u m\u00e0 c\u00f2n mang l\u1ea1i nhi\u1ec1u \u1ee9ng d\u1ee5ng h\u1eefu \u00edch v\u00e0 s\u00e1ng t\u1ea1o trong cu\u1ed9c s\u1ed1ng h\u00e0ng ng\u00e0y.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Ch\u1ea5t l\u1ecfng phi Newton | T\u00ednh ch\u1ea5t \u0111\u1ed9c \u0111\u00e1o &#038; \u1ee8ng d\u1ee5ng: Kh\u00e1m ph\u00e1 ch\u1ea5t l\u1ecfng c\u00f3 t\u00ednh ch\u1ea5t bi\u1ebfn \u0111\u1ed5i khi ch\u1ecbu l\u1ef1c, \u1ee9ng d\u1ee5ng trong y h\u1ecdc, c\u00f4ng nghi\u1ec7p v\u00e0 nhi\u1ec1u l\u0129nh v\u1ef1c kh\u00e1c.<\/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>Ch\u1ea5t l\u1ecfng phi Newton | T\u00ednh ch\u1ea5t \u0111\u1ed9c \u0111\u00e1o &amp; 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