{"id":680768,"date":"2024-11-27T08:08:05","date_gmt":"2024-11-27T07:08:05","guid":{"rendered":"https:\/\/www.thermal-engineering.org\/?p=680768"},"modified":"2024-11-27T08:08:05","modified_gmt":"2024-11-27T07:08:05","slug":"6-loai-mo-hinh-nhieu-loan-trong-dong-luc-hoc-chat-long","status":"publish","type":"post","link":"https:\/\/www.thermal-engineering.org\/vi\/6-loai-mo-hinh-nhieu-loan-trong-dong-luc-hoc-chat-long\/","title":{"rendered":"6 Lo\u1ea1i M\u00f4 H\u00ecnh Nhi\u1ec5u Lo\u1ea1n Trong \u0110\u1ed9ng L\u1ef1c H\u1ecdc Ch\u1ea5t L\u1ecfng"},"content":{"rendered":"

M\u00f4 h\u00ecnh nhi\u1ec5u lo\u1ea1n trong \u0111\u1ed9ng l\u1ef1c h\u1ecdc ch\u1ea5t l\u1ecfng: 6 lo\u1ea1i ph\u1ed5 bi\u1ebfn, nguy\u00ean l\u00fd ho\u1ea1t \u0111\u1ed9ng, \u1ee9ng d\u1ee5ng th\u1ef1c t\u1ebf trong thi\u1ebft k\u1ebf v\u00e0 c\u1ea3i thi\u1ec7n hi\u1ec7u su\u1ea5t h\u1ec7 th\u1ed1ng nhi\u1ec7t.<\/p>\n

\"6<\/p>\n

6 Lo\u1ea1i M\u00f4 H\u00ecnh Nhi\u1ec5u Lo\u1ea1n Trong \u0110\u1ed9ng L\u1ef1c H\u1ecdc Ch\u1ea5t L\u1ecfng<\/h2>\n

Trong l\u0129nh v\u1ef1c \u0111\u1ed9ng l\u1ef1c h\u1ecdc ch\u1ea5t l\u1ecfng, nhi\u1ec5u lo\u1ea1n l\u00e0 m\u1ed9t hi\u1ec7n t\u01b0\u1ee3ng ph\u1ee9c t\u1ea1p v\u00e0 kh\u00f3 d\u1ef1 \u0111o\u00e1n. N\u00f3 x\u1ea3y ra khi d\u00f2ng ch\u1ea3y ch\u1ea5t l\u1ecfng (hay kh\u00ed) tr\u1edf n\u00ean b\u1ea5t \u0111\u1ecbnh v\u00e0 h\u1ed7n \u0111\u1ed9n. \u0110\u1ec3 m\u00f4 ph\u1ecfng v\u00e0 d\u1ef1 \u0111o\u00e1n nhi\u1ec5u lo\u1ea1n, c\u00e1c k\u1ef9 s\u01b0 v\u00e0 nh\u00e0 khoa h\u1ecdc \u0111\u00e3 ph\u00e1t tri\u1ec3n nhi\u1ec1u m\u00f4 h\u00ecnh kh\u00e1c nhau. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 s\u00e1u lo\u1ea1i m\u00f4 h\u00ecnh nhi\u1ec5u lo\u1ea1n ph\u1ed5 bi\u1ebfn nh\u1ea5t.<\/p>\n

<\/p>\n

  • M\u00f4 h\u00ecnh Reynolds-Averaged Navier-Stokes (RANS)<\/b><\/li>\n

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

    M\u00f4 h\u00ecnh RANS d\u1ef1a tr\u00ean vi\u1ec7c trung b\u00ecnh ph\u01b0\u01a1ng tr\u00ecnh Navier-Stokes theo th\u1eddi gian. N\u00f3 ph\u00e2n t\u00e1ch v\u1eadn t\u1ed1c th\u00e0nh hai ph\u1ea7n: v\u1eadn t\u1ed1c trung b\u00ecnh v\u00e0 dao \u0111\u1ed9ng nhi\u1ec5u lo\u1ea1n. RANS ph\u00f9 h\u1ee3p cho c\u00e1c \u1ee9ng d\u1ee5ng c\u00f4ng nghi\u1ec7p v\u00ec t\u00ednh kh\u1ea3 thi v\u00e0 chi ph\u00ed t\u00ednh to\u00e1n h\u1ee3p l\u00fd.<\/p>\n

    <\/p>\n

  • M\u00f4 h\u00ecnh Viscosity Eddies<\/b><\/li>\n

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

    M\u00f4 h\u00ecnh n\u00e0y t\u1eadp trung v\u00e0o m\u1ee9c \u0111\u1ed9 nh\u1edbt c\u1ee7a ch\u1ea5t l\u1ecfng trong d\u00f2ng ch\u1ea3y b\u1ecb nhi\u1ec5u lo\u1ea1n v\u00e0 l\u00e0m gi\u1ea3m \u0111\u1ed9 ph\u00e2n gi\u1ea3i kh\u00f4ng gian c\u1ea7n thi\u1ebft cho c\u00e1c t\u00ednh to\u00e1n. N\u00f3 th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong c\u00e1c b\u00e0i to\u00e1n c\u00f3 k\u00edch th\u01b0\u1edbc l\u1edbn.<\/p>\n

    <\/p>\n

  • M\u00f4 h\u00ecnh Large Eddy Simulation (LES)<\/b><\/li>\n

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

    LES l\u00e0 m\u00f4 h\u00ecnh m\u00f4 ph\u1ecfng c\u00e1c c\u1ea5u tr\u00fac xo\u00e1y l\u1edbn trong d\u00f2ng ch\u1ea3y v\u00e0 s\u1eed d\u1ee5ng c\u00e1c ph\u01b0\u01a1ng tr\u00ecnh \u0111\u01a1n gi\u1ea3n h\u01a1n cho c\u00e1c c\u1ea5u tr\u00fac nh\u1ecf. N\u00f3 c\u00e2n b\u1eb1ng gi\u1eefa \u0111\u1ed9 ch\u00ednh x\u00e1c v\u00e0 chi ph\u00ed t\u00ednh to\u00e1n, ph\u00f9 h\u1ee3p cho vi\u1ec7c nghi\u00ean c\u1ee9u c\u00e1c hi\u1ec7n t\u01b0\u1ee3ng nhi\u1ec5u lo\u1ea1n ph\u1ee9c t\u1ea1p.<\/p>\n

    <\/p>\n

  • M\u00f4 h\u00ecnh Direct Numerical Simulation (DNS)<\/b><\/li>\n

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

    DNS gi\u1ea3i quy\u1ebft tr\u1ef1c ti\u1ebfp c\u00e1c ph\u01b0\u01a1ng tr\u00ecnh Navier-Stokes m\u00e0 kh\u00f4ng c\u1ea7n m\u00f4 h\u00ecnh ho\u00e1 nhi\u1ec5u lo\u1ea1n. Do \u0111\u00f3, n\u00f3 cung c\u1ea5p \u0111\u1ed9 chi ti\u1ebft r\u1ea5t cao nh\u01b0ng \u0111\u00f2i h\u1ecfi s\u1ee9c m\u1ea1nh t\u00ednh to\u00e1n c\u1ef1c l\u1edbn. DNS th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong nghi\u00ean c\u1ee9u c\u01a1 b\u1ea3n h\u01a1n l\u00e0 \u1ee9ng d\u1ee5ng th\u1ef1c ti\u1ec5n.<\/p>\n

    <\/p>\n

  • M\u00f4 h\u00ecnh Detached Eddy Simulation (DES)<\/b><\/li>\n

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

    DES k\u1ebft h\u1ee3p c\u00e1c y\u1ebfu t\u1ed1 c\u1ee7a c\u1ea3 RANS v\u00e0 LES, cho ph\u00e9p m\u00f4 ph\u1ecfng c\u1ea3 c\u00e1c c\u1ea5u tr\u00fac l\u1edbn v\u00e0 nh\u1ecf c\u1ee7a nhi\u1ec5u lo\u1ea1n. N\u00f3 l\u00e0 l\u1ef1a ch\u1ecdn t\u1ed1t cho c\u00e1c b\u00e0i to\u00e1n m\u00e0 c\u1ea3 hai ph\u01b0\u01a1ng ph\u00e1p RANS v\u00e0 LES \u0111\u1ec1u kh\u00f4ng ho\u00e0n to\u00e0n ph\u00f9 h\u1ee3p.<\/p>\n

    <\/p>\n

  • M\u00f4 h\u00ecnh Partially-Averaged Navier-Stokes (PANS)<\/b><\/li>\n

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

    PANS l\u00e0 s\u1ef1 k\u00e9o d\u00e0i c\u1ee7a RANS, cho ph\u00e9p chuy\u1ec3n \u0111\u1ed5i gi\u1eefa c\u00e1c c\u1ea5p \u0111\u1ed9 trung b\u00ecnh kh\u00e1c nhau tu\u1ef3 thu\u1ed9c v\u00e0o y\u00eau c\u1ea7u t\u00ednh to\u00e1n. \u0110i\u1ec1u n\u00e0y gi\u00fap t\u1ed1i \u01b0u ho\u00e1 \u0111\u1ed9 ch\u00ednh x\u00e1c v\u00e0 t\u00e0i nguy\u00ean t\u00ednh to\u00e1n.<\/p>\n

    Hi\u1ec3u v\u00e0 ch\u1ecdn \u0111\u00fang m\u00f4 h\u00ecnh nhi\u1ec5u lo\u1ea1n l\u00e0 r\u1ea5t quan tr\u1ecdng trong vi\u1ec7c \u1ee9ng d\u1ee5ng \u0111\u1ed9ng l\u1ef1c h\u1ecdc ch\u1ea5t l\u1ecfng v\u00e0o th\u1ef1c ti\u1ec5n, t\u1eeb thi\u1ebft k\u1ebf m\u00e1y bay, \u00f4 t\u00f4, \u0111\u1ebfn c\u00e1c h\u1ec7 th\u1ed1ng n\u0103ng l\u01b0\u1ee3ng v\u00e0 m\u00f4i tr\u01b0\u1eddng. Nh\u1eefng m\u00f4 h\u00ecnh n\u00e0y cung c\u1ea5p c\u00e1c c\u00f4ng c\u1ee5 c\u1ea7n thi\u1ebft \u0111\u1ec3 d\u1ef1 \u0111o\u00e1n v\u00e0 ki\u1ec3m so\u00e1t nhi\u1ec5u lo\u1ea1n, gi\u00fap c\u1ea3i thi\u1ec7n hi\u1ec7u su\u1ea5t v\u00e0 \u0111\u1ed9 b\u1ec1n c\u1ee7a c\u00e1c s\u1ea3n ph\u1ea9m v\u00e0 h\u1ec7 th\u1ed1ng k\u1ef9 thu\u1eadt.<\/p>\n","protected":false},"excerpt":{"rendered":"

    M\u00f4 h\u00ecnh nhi\u1ec5u lo\u1ea1n trong \u0111\u1ed9ng l\u1ef1c h\u1ecdc ch\u1ea5t l\u1ecfng: 6 lo\u1ea1i ph\u1ed5 bi\u1ebfn, nguy\u00ean l\u00fd ho\u1ea1t \u0111\u1ed9ng, \u1ee9ng d\u1ee5ng th\u1ef1c t\u1ebf trong thi\u1ebft k\u1ebf v\u00e0 c\u1ea3i thi\u1ec7n hi\u1ec7u su\u1ea5t h\u1ec7 th\u1ed1ng nhi\u1ec7t.<\/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":"\n6 Lo\u1ea1i M\u00f4 H\u00ecnh Nhi\u1ec5u Lo\u1ea1n Trong \u0110\u1ed9ng L\u1ef1c H\u1ecdc Ch\u1ea5t L\u1ecfng<\/title>\n<meta name=\"description\" content=\"M\u00f4 h\u00ecnh nhi\u1ec5u lo\u1ea1n trong \u0111\u1ed9ng l\u1ef1c h\u1ecdc ch\u1ea5t l\u1ecfng: 6 lo\u1ea1i ph\u1ed5 bi\u1ebfn, nguy\u00ean l\u00fd ho\u1ea1t \u0111\u1ed9ng, \u1ee9ng d\u1ee5ng th\u1ef1c t\u1ebf trong thi\u1ebft k\u1ebf v\u00e0 c\u1ea3i thi\u1ec7n hi\u1ec7u su\u1ea5t h\u1ec7 th\u1ed1ng nhi\u1ec7t.\" \/>\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\/6-loai-mo-hinh-nhieu-loan-trong-dong-luc-hoc-chat-long\/\" \/>\n<meta property=\"og:locale\" content=\"vi_VN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"6 Lo\u1ea1i M\u00f4 H\u00ecnh Nhi\u1ec5u Lo\u1ea1n Trong \u0110\u1ed9ng L\u1ef1c H\u1ecdc Ch\u1ea5t L\u1ecfng\" \/>\n<meta property=\"og:description\" content=\"M\u00f4 h\u00ecnh nhi\u1ec5u lo\u1ea1n trong \u0111\u1ed9ng l\u1ef1c h\u1ecdc ch\u1ea5t l\u1ecfng: 6 lo\u1ea1i ph\u1ed5 bi\u1ebfn, nguy\u00ean l\u00fd ho\u1ea1t \u0111\u1ed9ng, \u1ee9ng d\u1ee5ng th\u1ef1c t\u1ebf trong thi\u1ebft k\u1ebf v\u00e0 c\u1ea3i thi\u1ec7n hi\u1ec7u su\u1ea5t h\u1ec7 th\u1ed1ng nhi\u1ec7t.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.thermal-engineering.org\/vi\/6-loai-mo-hinh-nhieu-loan-trong-dong-luc-hoc-chat-long\/\" \/>\n<meta property=\"og:site_name\" content=\"Thermal Engineering\" \/>\n<meta property=\"article:published_time\" content=\"2024-11-27T07:08:05+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.thermal-engineering.org\/wp-content\/uploads\/2024\/07\/6_loai_mo_hinh_nhieu_loan_trong_dong_luc_hoc_chat_long.png\" \/>\n<meta name=\"twitter:card\" content=\"summary\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\">\n\t<meta name=\"twitter:data1\" content=\"Nick Connor\">\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\">\n\t<meta name=\"twitter:data2\" content=\"3 minutes\">\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebSite\",\"@id\":\"https:\/\/www.thermal-engineering.org\/fr\/#website\",\"url\":\"https:\/\/www.thermal-engineering.org\/fr\/\",\"name\":\"Thermal Engineering\",\"description\":\"\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":\"https:\/\/www.thermal-engineering.org\/fr\/?s={search_term_string}\",\"query-input\":\"required name=search_term_string\"}],\"inLanguage\":\"vi-VN\"},{\"@type\":\"ImageObject\",\"@id\":\"https:\/\/www.thermal-engineering.org\/vi\/6-loai-mo-hinh-nhieu-loan-trong-dong-luc-hoc-chat-long\/#primaryimage\",\"inLanguage\":\"vi-VN\",\"url\":\"https:\/\/www.thermal-engineering.org\/wp-content\/uploads\/2024\/07\/6_loai_mo_hinh_nhieu_loan_trong_dong_luc_hoc_chat_long.png\",\"width\":1000,\"height\":1000,\"caption\":\"6 Lo\\u1ea1i M\\u00f4 H\\u00ecnh Nhi\\u1ec5u Lo\\u1ea1n Trong \\u0110\\u1ed9ng L\\u1ef1c H\\u1ecdc Ch\\u1ea5t L\\u1ecfng\"},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.thermal-engineering.org\/vi\/6-loai-mo-hinh-nhieu-loan-trong-dong-luc-hoc-chat-long\/#webpage\",\"url\":\"https:\/\/www.thermal-engineering.org\/vi\/6-loai-mo-hinh-nhieu-loan-trong-dong-luc-hoc-chat-long\/\",\"name\":\"6 Lo\\u1ea1i M\\u00f4 H\\u00ecnh Nhi\\u1ec5u Lo\\u1ea1n Trong \\u0110\\u1ed9ng L\\u1ef1c H\\u1ecdc Ch\\u1ea5t L\\u1ecfng\",\"isPartOf\":{\"@id\":\"https:\/\/www.thermal-engineering.org\/fr\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\/\/www.thermal-engineering.org\/vi\/6-loai-mo-hinh-nhieu-loan-trong-dong-luc-hoc-chat-long\/#primaryimage\"},\"datePublished\":\"2024-11-27T07:08:05+00:00\",\"dateModified\":\"2024-11-27T07:08:05+00:00\",\"author\":{\"@id\":\"https:\/\/www.thermal-engineering.org\/fr\/#\/schema\/person\/e8c544db9afedaec8574d6464f9398bb\"},\"description\":\"M\\u00f4 h\\u00ecnh nhi\\u1ec5u lo\\u1ea1n trong \\u0111\\u1ed9ng l\\u1ef1c h\\u1ecdc ch\\u1ea5t l\\u1ecfng: 6 lo\\u1ea1i ph\\u1ed5 bi\\u1ebfn, nguy\\u00ean l\\u00fd ho\\u1ea1t \\u0111\\u1ed9ng, \\u1ee9ng d\\u1ee5ng th\\u1ef1c t\\u1ebf trong thi\\u1ebft k\\u1ebf v\\u00e0 c\\u1ea3i thi\\u1ec7n hi\\u1ec7u su\\u1ea5t h\\u1ec7 th\\u1ed1ng nhi\\u1ec7t.\",\"inLanguage\":\"vi-VN\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/www.thermal-engineering.org\/vi\/6-loai-mo-hinh-nhieu-loan-trong-dong-luc-hoc-chat-long\/\"]}]},{\"@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. -->","_links":{"self":[{"href":"https:\/\/www.thermal-engineering.org\/vi\/wp-json\/wp\/v2\/posts\/680768"}],"collection":[{"href":"https:\/\/www.thermal-engineering.org\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.thermal-engineering.org\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.thermal-engineering.org\/vi\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.thermal-engineering.org\/vi\/wp-json\/wp\/v2\/comments?post=680768"}],"version-history":[{"count":0,"href":"https:\/\/www.thermal-engineering.org\/vi\/wp-json\/wp\/v2\/posts\/680768\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.thermal-engineering.org\/vi\/wp-json\/wp\/v2\/media?parent=680768"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.thermal-engineering.org\/vi\/wp-json\/wp\/v2\/categories?post=680768"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.thermal-engineering.org\/vi\/wp-json\/wp\/v2\/tags?post=680768"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}