{"id":680692,"date":"2024-08-18T16:45:31","date_gmt":"2024-08-18T15:45:31","guid":{"rendered":"https:\/\/www.thermal-engineering.org\/?p=680692"},"modified":"2024-08-18T16:45:31","modified_gmt":"2024-08-18T15:45:31","slug":"8-mo-hinh-dong-luc-hoc-chat-long-pho-bien-cho-ky-su","status":"publish","type":"post","link":"https:\/\/www.thermal-engineering.org\/vi\/8-mo-hinh-dong-luc-hoc-chat-long-pho-bien-cho-ky-su\/","title":{"rendered":"8 M\u00f4 H\u00ecnh \u0110\u1ed9ng L\u1ef1c H\u1ecdc Ch\u1ea5t L\u1ecfng Ph\u1ed5 Bi\u1ebfn cho K\u1ef9 S\u01b0"},"content":{"rendered":"

M\u00f4 h\u00ecnh \u0111\u1ed9ng l\u1ef1c h\u1ecdc ch\u1ea5t l\u1ecfng ph\u1ed5 bi\u1ebfn cho k\u1ef9 s\u01b0: Kh\u00e1m ph\u00e1 8 m\u00f4 h\u00ecnh quan tr\u1ecdng trong k\u1ef9 thu\u1eadt nhi\u1ec7t, t\u1ed1i \u01b0u ho\u00e1 hi\u1ec7u su\u1ea5t v\u00e0 thi\u1ebft k\u1ebf h\u1ec7 th\u1ed1ng.<\/p>\n

\"8<\/p>\n

8 M\u00f4 H\u00ecnh \u0110\u1ed9ng L\u1ef1c H\u1ecdc Ch\u1ea5t L\u1ecfng Ph\u1ed5 Bi\u1ebfn cho K\u1ef9 S\u01b0<\/h2>\n

Trong l\u0129nh v\u1ef1c k\u1ef9 thu\u1eadt nhi\u1ec7t, \u0111\u1ed9ng l\u1ef1c h\u1ecdc ch\u1ea5t l\u1ecfng \u0111\u00f3ng m\u1ed9t vai tr\u00f2 r\u1ea5t quan tr\u1ecdng. \u0110\u1ed9ng l\u1ef1c h\u1ecdc ch\u1ea5t l\u1ecfng nghi\u00ean c\u1ee9u c\u00e1c t\u00ednh ch\u1ea5t v\u00e0 chuy\u1ec3n \u0111\u1ed9ng c\u1ee7a ch\u1ea5t l\u1ecfng (bao g\u1ed3m ch\u1ea5t l\u1ecfng v\u00e0 kh\u00ed). \u0110\u1ec3 hi\u1ec3u v\u00e0 d\u1ef1 \u0111o\u00e1n h\u00e0nh vi c\u1ee7a ch\u00fang trong c\u00e1c \u1ee9ng d\u1ee5ng th\u1ef1c t\u1ebf, c\u00e1c k\u1ef9 s\u01b0 th\u01b0\u1eddng s\u1eed d\u1ee5ng c\u00e1c m\u00f4 h\u00ecnh \u0111\u1ed9ng l\u1ef1c h\u1ecdc ch\u1ea5t l\u1ecfng kh\u00e1c nhau. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 t\u00e1m m\u00f4 h\u00ecnh ph\u1ed5 bi\u1ebfn m\u00e0 c\u00e1c k\u1ef9 s\u01b0 th\u01b0\u1eddng s\u1eed d\u1ee5ng.<\/p>\n

<\/p>\n

  • Ph\u01b0\u01a1ng tr\u00ecnh Navier-Stokes<\/strong><\/li>\n

    Ph\u01b0\u01a1ng tr\u00ecnh Navier-Stokes l\u00e0 h\u1ec7 ph\u01b0\u01a1ng tr\u00ecnh vi ph\u00e2n m\u00f4 t\u1ea3 chuy\u1ec3n \u0111\u1ed9ng c\u1ee7a c\u00e1c ch\u1ea5t l\u1ecfng viscous. Ph\u1ee5 thu\u1ed9c v\u00e0o c\u00e1c y\u1ebfu t\u1ed1 nh\u01b0 \u00e1p su\u1ea5t, v\u1eadn t\u1ed1c, v\u00e0 \u0111\u1ed9 nh\u1edbt, ch\u00fang l\u00e0 c\u00f4ng c\u1ee5 quan tr\u1ecdng cho vi\u1ec7c m\u00f4 ph\u1ecfng \u0111i\u1ec1u ki\u1ec7n th\u1ef1c t\u1ebf c\u1ee7a d\u00f2ng ch\u1ea3y.<\/p>\n

  • Ph\u01b0\u01a1ng tr\u00ecnh li\u00ean t\u1ee5c<\/strong><\/li>\n

    Ph\u01b0\u01a1ng tr\u00ecnh li\u00ean t\u1ee5c \u0111\u1ea3m b\u1ea3o r\u1eb1ng kh\u1ed1i l\u01b0\u1ee3ng trong m\u1ed9t h\u1ec7 th\u1ed1ng k\u00edn l\u00e0 b\u1ea3o to\u00e0n. \u0110i\u1ec1u n\u00e0y ngh\u0129a l\u00e0, trong m\u1ed9t c\u1ea7u th\u1eddi gian, kh\u1ed1i l\u01b0\u1ee3ng kh\u00f4ng c\u00f3 m\u1ea5t m\u00e1t ho\u1eb7c gain, gi\u00fap c\u00e1c k\u1ef9 s\u01b0 ki\u1ec3m tra s\u1ef1 c\u00e2n b\u1eb1ng c\u1ee7a ch\u1ea5t l\u1ecfng trong h\u1ec7 th\u1ed1ng.<\/p>\n

  • \u0110\u1ecbnh lu\u1eadt Bernoulli<\/strong><\/li>\n

    \u0110\u1ecbnh lu\u1eadt Bernoulli m\u00f4 t\u1ea3 m\u1ed1i quan h\u1ec7 gi\u1eefa \u00e1p su\u1ea5t v\u00e0 v\u1eadn t\u1ed1c c\u1ee7a d\u00f2ng ch\u1ea3y ch\u1ea5t l\u1ecfng trong m\u1ed9t \u0111\u01b0\u1eddng \u1ed1ng. \u0110\u1ecbnh lu\u1eadt n\u00e0y r\u1ea5t h\u1eefu \u00edch trong c\u00e1c \u1ee9ng d\u1ee5ng nh\u01b0 thi\u1ebft k\u1ebf \u1ed1ng d\u1eabn, \u1ed1ng x\u1ea3, v\u00e0 d\u1ef1 \u0111o\u00e1n s\u1ef1 thay \u0111\u1ed5i \u00e1p su\u1ea5t kh\u00ed \u0111\u1ed9ng h\u1ecdc.<\/p>\n

  • Ph\u01b0\u01a1ng tr\u00ecnh tr\u1ea1ng th\u00e1i kh\u00ed l\u00fd t\u01b0\u1edfng<\/strong><\/li>\n

    Ph\u01b0\u01a1ng tr\u00ecnh tr\u1ea1ng th\u00e1i kh\u00ed l\u00fd t\u01b0\u1edfng l\u00e0 ph\u01b0\u01a1ng tr\u00ecnh \u0111\u01a1n gi\u1ea3n m\u00f4 t\u1ea3 m\u1ed1i quan h\u1ec7 gi\u1eefa \u00e1p su\u1ea5t, th\u1ec3 t\u00edch v\u00e0 nhi\u1ec7t \u0111\u1ed9 c\u1ee7a m\u1ed9t kh\u00ed l\u00fd t\u01b0\u1edfng. M\u1eb7c d\u00f9 n\u00f3 kh\u00f4ng ho\u00e0n to\u00e0n ch\u00ednh x\u00e1c cho m\u1ecdi tr\u01b0\u1eddng h\u1ee3p, n\u00f3 v\u1eabn r\u1ea5t h\u1eefu \u00edch trong nhi\u1ec1u \u1ee9ng d\u1ee5ng khoa h\u1ecdc v\u00e0 k\u1ef9 thu\u1eadt.<\/p>\n

  • Ph\u01b0\u01a1ng tr\u00ecnh n\u0103ng l\u01b0\u1ee3ng<\/strong><\/li>\n

    Ph\u01b0\u01a1ng tr\u00ecnh n\u0103ng l\u01b0\u1ee3ng m\u00f4 t\u1ea3 c\u00e1ch n\u0103ng l\u01b0\u1ee3ng b\u1ecb ph\u00e2n ph\u1ed1i v\u00e0 b\u1ea3o to\u00e0n trong m\u1ed9t d\u00f2ng ch\u1ea3y ch\u1ea5t l\u1ecfng. N\u00f3 bao g\u1ed3m c\u00e1c y\u1ebfu t\u1ed1 nhi\u1ec7t \u0111\u1ed9, n\u0103ng l\u01b0\u1ee3ng n\u1ed9i v\u00e0 ngo\u1ea1i, v\u00e0 c\u00f4ng su\u1ea5t d\u00f2ng ch\u1ea3y.<\/p>\n

  • M\u00f4 h\u00ecnh k-\u03b5 (k-epsilon)<\/strong><\/li>\n

    M\u00f4 h\u00ecnh k-\u03b5 l\u00e0 m\u1ed9t trong nh\u1eefng m\u00f4 h\u00ecnh ph\u1ed5 bi\u1ebfn nh\u1ea5t v\u1ec1 \u0111\u1ed9ng l\u1ef1c h\u1ecdc ch\u1ea5t l\u1ecfng t\u00ednh to\u00e1n (CFD). N\u00f3 \u0111\u01b0\u1ee3c d\u00f9ng \u0111\u1ec3 m\u00f4 ph\u1ecfng d\u00f2ng ch\u1ea3y nhi\u1ec5u \u0111\u1ed9ng b\u1eb1ng c\u00e1ch gi\u1ea3i h\u1ec7 ph\u01b0\u01a1ng tr\u00ecnh vi ph\u00e2n cho hai bi\u1ebfn: \u0111\u1ed9ng n\u0103ng nhi\u1ec5u \u0111\u1ed9ng (k) v\u00e0 t\u1ec9 l\u1ec7 gi\u1ea3m \u0111\u1ed9ng n\u0103ng nhi\u1ec5u \u0111\u1ed9ng (\u03b5).<\/p>\n

  • M\u00f4 h\u00ecnh c\u1ee7a Darcy-Weisbach<\/strong><\/li>\n

    M\u00f4 h\u00ecnh c\u1ee7a Darcy-Weisbach l\u00e0 c\u00f4ng th\u1ee9c t\u00ednh to\u00e1n t\u1ed5n th\u1ea5t \u0111\u1ea7u d\u00f2ng trong m\u1ed9t \u1ed1ng ho\u1eb7c h\u1ec7 th\u1ed1ng \u1ed1ng d\u1eabn. N\u00f3 s\u1eed d\u1ee5ng h\u1ec7 s\u1ed1 ma s\u00e1t Darcy, \u0111\u1ed9 d\u00e0i v\u00e0 \u0111\u01b0\u1eddng k\u00ednh \u1ed1ng \u0111\u1ec3 d\u1ef1 \u0111o\u00e1n \u00e1p su\u1ea5t ho\u1eb7c t\u1ed5n th\u1ea5t n\u0103ng l\u01b0\u1ee3ng.<\/p>\n

  • Ph\u01b0\u01a1ng tr\u00ecnh Reynolds<\/strong><\/li>\n

    Ph\u01b0\u01a1ng tr\u00ecnh Reynolds \u0111\u01b0\u1ee3c d\u00f9ng \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh lo\u1ea1i d\u00f2ng ch\u1ea3y (l\u00e0 laminar hay turbulent) d\u1ef1a tr\u00ean s\u1ed1 Reynolds. Ph\u01b0\u01a1ng tr\u00ecnh n\u00e0y xem x\u00e9t m\u1eadt \u0111\u1ed9, v\u1eadn t\u1ed1c, \u0111\u1ed9 nh\u1edbt v\u00e0 k\u00edch th\u01b0\u1edbc \u0111\u1eb7c tr\u01b0ng c\u1ee7a d\u00f2ng ch\u1ea3y.<\/p>\n

    <\/u1><\/p>\n

    Vi\u1ec7c hi\u1ec3u r\u00f5 v\u1ec1 c\u00e1c m\u00f4 h\u00ecnh n\u00e0y kh\u00f4ng ch\u1ec9 gi\u00fap c\u00e1c k\u1ef9 s\u01b0 thi\u1ebft k\u1ebf t\u1ed1t h\u01a1n c\u00e1c h\u1ec7 th\u1ed1ng v\u00e0 thi\u1ebft b\u1ecb li\u00ean quan t\u1edbi ch\u1ea5t l\u1ecfng m\u00e0 c\u00f2n c\u1ea3i thi\u1ec7n hi\u1ec7u su\u1ea5t v\u00e0 \u0111\u1ed9 tin c\u1eady c\u1ee7a c\u00e1c \u1ee9ng d\u1ee5ng th\u1ef1c t\u1ebf.<\/p>\n","protected":false},"excerpt":{"rendered":"

    M\u00f4 h\u00ecnh \u0111\u1ed9ng l\u1ef1c h\u1ecdc ch\u1ea5t l\u1ecfng ph\u1ed5 bi\u1ebfn cho k\u1ef9 s\u01b0: Kh\u00e1m ph\u00e1 8 m\u00f4 h\u00ecnh quan tr\u1ecdng trong k\u1ef9 thu\u1eadt nhi\u1ec7t, t\u1ed1i \u01b0u ho\u00e1 hi\u1ec7u su\u1ea5t v\u00e0 thi\u1ebft k\u1ebf h\u1ec7 th\u1ed1ng.<\/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":"\n8 M\u00f4 H\u00ecnh \u0110\u1ed9ng L\u1ef1c H\u1ecdc Ch\u1ea5t L\u1ecfng Ph\u1ed5 Bi\u1ebfn cho K\u1ef9 S\u01b0<\/title>\n<meta name=\"description\" content=\"M\u00f4 h\u00ecnh \u0111\u1ed9ng l\u1ef1c h\u1ecdc ch\u1ea5t l\u1ecfng ph\u1ed5 bi\u1ebfn cho k\u1ef9 s\u01b0: Kh\u00e1m ph\u00e1 8 m\u00f4 h\u00ecnh quan tr\u1ecdng trong k\u1ef9 thu\u1eadt nhi\u1ec7t, t\u1ed1i \u01b0u ho\u00e1 hi\u1ec7u su\u1ea5t v\u00e0 thi\u1ebft k\u1ebf h\u1ec7 th\u1ed1ng.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.thermal-engineering.org\/vi\/8-mo-hinh-dong-luc-hoc-chat-long-pho-bien-cho-ky-su\/\" \/>\n<meta property=\"og:locale\" content=\"vi_VN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"8 M\u00f4 H\u00ecnh \u0110\u1ed9ng L\u1ef1c H\u1ecdc Ch\u1ea5t L\u1ecfng Ph\u1ed5 Bi\u1ebfn cho K\u1ef9 S\u01b0\" \/>\n<meta property=\"og:description\" content=\"M\u00f4 h\u00ecnh \u0111\u1ed9ng l\u1ef1c h\u1ecdc ch\u1ea5t l\u1ecfng ph\u1ed5 bi\u1ebfn cho k\u1ef9 s\u01b0: Kh\u00e1m ph\u00e1 8 m\u00f4 h\u00ecnh quan tr\u1ecdng trong k\u1ef9 thu\u1eadt nhi\u1ec7t, t\u1ed1i \u01b0u ho\u00e1 hi\u1ec7u su\u1ea5t v\u00e0 thi\u1ebft k\u1ebf h\u1ec7 th\u1ed1ng.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.thermal-engineering.org\/vi\/8-mo-hinh-dong-luc-hoc-chat-long-pho-bien-cho-ky-su\/\" \/>\n<meta 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M\\u00f4 H\\u00ecnh \\u0110\\u1ed9ng L\\u1ef1c H\\u1ecdc Ch\\u1ea5t L\\u1ecfng Ph\\u1ed5 Bi\\u1ebfn cho K\\u1ef9 S\\u01b0\",\"isPartOf\":{\"@id\":\"https:\/\/www.thermal-engineering.org\/fr\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\/\/www.thermal-engineering.org\/vi\/8-mo-hinh-dong-luc-hoc-chat-long-pho-bien-cho-ky-su\/#primaryimage\"},\"datePublished\":\"2024-08-18T15:45:31+00:00\",\"dateModified\":\"2024-08-18T15:45:31+00:00\",\"author\":{\"@id\":\"https:\/\/www.thermal-engineering.org\/fr\/#\/schema\/person\/e8c544db9afedaec8574d6464f9398bb\"},\"description\":\"M\\u00f4 h\\u00ecnh \\u0111\\u1ed9ng l\\u1ef1c h\\u1ecdc ch\\u1ea5t l\\u1ecfng ph\\u1ed5 bi\\u1ebfn cho k\\u1ef9 s\\u01b0: Kh\\u00e1m ph\\u00e1 8 m\\u00f4 h\\u00ecnh quan tr\\u1ecdng trong k\\u1ef9 thu\\u1eadt nhi\\u1ec7t, t\\u1ed1i \\u01b0u ho\\u00e1 hi\\u1ec7u su\\u1ea5t v\\u00e0 thi\\u1ebft k\\u1ebf h\\u1ec7 th\\u1ed1ng.\",\"inLanguage\":\"vi-VN\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/www.thermal-engineering.org\/vi\/8-mo-hinh-dong-luc-hoc-chat-long-pho-bien-cho-ky-su\/\"]}]},{\"@type\":\"Person\",\"@id\":\"https:\/\/www.thermal-engineering.org\/fr\/#\/schema\/person\/e8c544db9afedaec8574d6464f9398bb\",\"name\":\"Nick Connor\",\"image\":{\"@type\":\"ImageObject\",\"@id\":\"https:\/\/www.thermal-engineering.org\/fr\/#personlogo\",\"inLanguage\":\"vi-VN\",\"url\":\"https:\/\/secure.gravatar.com\/avatar\/84c0dec310b44b65da29dc9df6925239?s=96&d=mm&r=g\",\"caption\":\"Nick Connor\"}}]}<\/script>\n<!-- \/ Yoast SEO plugin. 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