{"id":696881,"date":"2024-08-16T18:10:26","date_gmt":"2024-08-16T17:10:26","guid":{"rendered":"https:\/\/www.thermal-engineering.org\/?p=696881"},"modified":"2024-08-16T18:10:26","modified_gmt":"2024-08-16T17:10:26","slug":"mo-phong-dong-chay-da-pha-trong-cfd","status":"publish","type":"post","link":"https:\/\/www.thermal-engineering.org\/vi\/mo-phong-dong-chay-da-pha-trong-cfd\/","title":{"rendered":"M\u00f4 ph\u1ecfng d\u00f2ng ch\u1ea3y \u0111a pha trong CFD"},"content":{"rendered":"<p class=\"sidekick\">M\u00f4 ph\u1ecfng d\u00f2ng ch\u1ea3y \u0111a pha trong CFD: H\u01b0\u1edbng d\u1eabn c\u0103n b\u1ea3n v\u1ec1 c\u00e1ch s\u1eed d\u1ee5ng CFD \u0111\u1ec3 ph\u00e2n t\u00edch v\u00e0 t\u1ed1i \u01b0u h\u00f3a d\u00f2ng ch\u1ea3y \u0111a pha trong c\u00e1c h\u1ec7 th\u1ed1ng nhi\u1ec7t.<\/p>\n<p><img src=\"https:\/\/www.thermal-engineering.org\/wp-content\/uploads\/2024\/07\/mo_phong_dong_chay_da_pha_trong_cfd.png\" alt=\"M\u00f4 ph\u1ecfng d\u00f2ng ch\u1ea3y \u0111a pha trong CFD\" style=\"display: block; margin-left: auto; margin-right: auto;\"\/><\/p>\n<h2>M\u00f4 ph\u1ecfng d\u00f2ng ch\u1ea3y \u0111a pha trong CFD<\/h2>\n<p>M\u00f4 ph\u1ecfng d\u00f2ng ch\u1ea3y \u0111a pha (Multiphase Flow Simulation) l\u00e0 m\u1ed9t l\u0129nh v\u1ef1c quan tr\u1ecdng trong CFD (Computational Fluid Dynamics), \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 ph\u00e2n t\u00edch v\u00e0 d\u1ef1 \u0111o\u00e1n c\u00e1c hi\u1ec7n t\u01b0\u1ee3ng li\u00ean quan \u0111\u1ebfn s\u1ef1 t\u01b0\u01a1ng t\u00e1c gi\u1eefa c\u00e1c pha kh\u00e1c nhau trong d\u00f2ng ch\u1ea3y. C\u00e1c pha n\u00e0y c\u00f3 th\u1ec3 l\u00e0 kh\u00ed, l\u1ecfng, r\u1eafn ho\u1eb7c s\u1ef1 k\u1ebft h\u1ee3p c\u1ee7a ch\u00fang. Vi\u1ec7c hi\u1ec3u r\u00f5 v\u00e0 m\u00f4 ph\u1ecfng ch\u00ednh x\u00e1c c\u00e1c d\u00f2ng ch\u1ea3y \u0111a pha c\u00f3 \u00fd ngh\u0129a quan tr\u1ecdng trong nhi\u1ec1u l\u0129nh v\u1ef1c k\u1ef9 thu\u1eadt nh\u01b0 n\u0103ng l\u01b0\u1ee3ng, h\u00e0ng kh\u00f4ng, h\u00f3a ch\u1ea5t v\u00e0 y sinh.<\/p>\n<h2>Kh\u00e1i ni\u1ec7m c\u01a1 b\u1ea3n v\u1ec1 d\u00f2ng ch\u1ea3y \u0111a pha<\/h2>\n<p>D\u00f2ng ch\u1ea3y \u0111a pha x\u1ea3y ra khi trong d\u00f2ng ch\u1ea5t l\u01b0u c\u00f3 s\u1ef1 t\u1ed3n t\u1ea1i c\u1ee7a nhi\u1ec1u pha kh\u00e1c nhau c\u00f9ng l\u00fac. C\u00e1c v\u00ed d\u1ee5 ti\u00eau bi\u1ec3u bao g\u1ed3m:<\/p>\n<ul>\n<li>D\u00f2ng n\u01b0\u1edbc v\u00e0 h\u01a1i n\u01b0\u1edbc trong n\u1ed3i h\u01a1i.<\/li>\n<li>D\u00f2ng kh\u00ed v\u00e0 l\u1ecfng trong th\u00e1p ch\u01b0ng c\u1ea5t.<\/li>\n<li>D\u00f2ng n\u01b0\u1edbc v\u00e0 b\u00f9n trong c\u00e1c h\u1ec7 th\u1ed1ng x\u1eed l\u00fd n\u01b0\u1edbc th\u1ea3i.<\/li>\n<\/ul>\n<p>Khi m\u00f4 ph\u1ecfng d\u00f2ng ch\u1ea3y \u0111a pha, c\u00e1c nh\u00e0 nghi\u00ean c\u1ee9u v\u00e0 k\u1ef9 s\u01b0 ph\u1ea3i x\u00e1c \u0111\u1ecbnh c\u00e1c th\u00f4ng s\u1ed1 nh\u01b0 t\u1ef7 l\u1ec7 th\u1ec3 t\u00edch c\u1ee7a c\u00e1c pha, v\u1eadn t\u1ed1c t\u01b0\u01a1ng \u0111\u1ed1i gi\u1eefa c\u00e1c pha v\u00e0 c\u00e1c l\u1ef1c t\u01b0\u01a1ng t\u00e1c gi\u1eefa ch\u00fang.<\/p>\n<h2>Ph\u01b0\u01a1ng ph\u00e1p m\u00f4 ph\u1ecfng d\u00f2ng ch\u1ea3y \u0111a pha trong CFD<\/h2>\n<p>C\u00f3 nhi\u1ec1u ph\u01b0\u01a1ng ph\u00e1p kh\u00e1c nhau \u0111\u1ec3 m\u00f4 ph\u1ecfng d\u00f2ng ch\u1ea3y \u0111a pha. C\u00e1c ph\u01b0\u01a1ng ph\u00e1p n\u00e0y bao g\u1ed3m:<\/p>\n<ol>\n<li><b>Ph\u01b0\u01a1ng ph\u00e1p Euler-Euler:<\/b> Trong ph\u01b0\u01a1ng ph\u00e1p n\u00e0y, m\u1ed7i pha \u0111\u01b0\u1ee3c coi nh\u01b0 m\u1ed9t m\u00f4i tr\u01b0\u1eddng li\u00ean t\u1ee5c v\u00e0 c\u00e1c ph\u01b0\u01a1ng tr\u00ecnh b\u1ea3o to\u00e0n \u0111\u01b0\u1ee3c gi\u1ea3i quy\u1ebft cho t\u1eebng pha ri\u00eang bi\u1ec7t. Ph\u01b0\u01a1ng ph\u00e1p n\u00e0y th\u00edch h\u1ee3p cho c\u00e1c t\u00ecnh hu\u1ed1ng m\u00e0 c\u00e1c pha c\u00f3 t\u1ef7 l\u1ec7 th\u1ec3 t\u00edch t\u01b0\u01a1ng \u0111\u01b0\u01a1ng nhau.<\/li>\n<li><b>Ph\u01b0\u01a1ng ph\u00e1p Euler-Lagrange:<\/b> Ph\u01b0\u01a1ng ph\u00e1p n\u00e0y theo d\u00f5i c\u00e1c h\u1ea1t ho\u1eb7c gi\u1ecdt l\u1ebb t\u1ebb trong pha li\u00ean t\u1ee5c. Ph\u01b0\u01a1ng ph\u00e1p n\u00e0y ph\u00f9 h\u1ee3p cho c\u00e1c d\u00f2ng ch\u1ea3y m\u00e0 m\u1ed9t pha chi\u1ebfm \u01b0u th\u1ebf so v\u1edbi pha kia, nh\u01b0 c\u00e1c gi\u1ecdt n\u01b0\u1edbc trong kh\u00ed quy\u1ec3n.<\/li>\n<li><b>M\u00f4 h\u00ecnh Volume of Fluid (VOF):<\/b> \u0110\u00e2y l\u00e0 ph\u01b0\u01a1ng ph\u00e1p d\u00f9ng \u0111\u1ec3 theo d\u00f5i b\u1ec1 m\u1eb7t gi\u1eefa c\u00e1c pha kh\u00f4ng tr\u1ed9n l\u1eabn, nh\u01b0 s\u1ef1 t\u01b0\u01a1ng t\u00e1c gi\u1eefa n\u01b0\u1edbc v\u00e0 d\u1ea7u.<\/li>\n<\/ol>\n<h2>C\u00e1c ph\u01b0\u01a1ng tr\u00ecnh v\u00e0 m\u00f4 h\u00ecnh<\/h2>\n<p>C\u00e1c ph\u01b0\u01a1ng tr\u00ecnh ch\u00ednh \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong m\u00f4 ph\u1ecfng d\u00f2ng ch\u1ea3y \u0111a pha bao g\u1ed3m ph\u01b0\u01a1ng tr\u00ecnh Navier-Stokes, ph\u01b0\u01a1ng tr\u00ecnh b\u1ea3o to\u00e0n kh\u1ed1i l\u01b0\u1ee3ng v\u00e0 n\u0103ng l\u01b0\u1ee3ng. Ch\u00fang c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c bi\u1ec3u di\u1ec5n d\u01b0\u1edbi d\u1ea1ng t\u1ed5ng qu\u00e1t nh\u01b0 sau:<\/p>\n<p>$$<br \/>\n\\frac{\\partial (\\rho u)}{\\partial t} + \\nabla \\cdot (\\rho u u) = -\\nabla p + \\nabla \\cdot ( \\tau ) + \\rho g + F<br \/>\n$$<\/p>\n<p>$$<br \/>\n\\frac{\\partial \\rho}{\\partial t} + \\nabla \\cdot (\\rho u) = 0<br \/>\n$$<\/p>\n<p>Trong \u0111\u00f3:<\/p>\n<ul>\n<li>\\(\\rho\\) l\u00e0 m\u1eadt \u0111\u1ed9.<\/li>\n<li>\\(u\\) l\u00e0 v\u1eadn t\u1ed1c.<\/li>\n<li>\\(p\\) l\u00e0 \u00e1p su\u1ea5t.<\/li>\n<li>\\(\\tau\\) l\u00e0 tensor \u1ee9ng su\u1ea5t.<\/li>\n<li>\\(g\\) l\u00e0 gia t\u1ed1c tr\u1ecdng tr\u01b0\u1eddng.<\/li>\n<li>\\(F\\) l\u00e0 l\u1ef1c ngo\u1ea1i l\u1ef1c.<\/li>\n<\/ul>\n<p>\u0110\u1ec3 gi\u1ea3i quy\u1ebft c\u00e1c ph\u01b0\u01a1ng tr\u00ecnh n\u00e0y, c\u00e1c k\u1ef9 s\u01b0 th\u01b0\u1eddng s\u1eed d\u1ee5ng c\u00e1c ph\u1ea7n m\u1ec1m nh\u01b0 ANSYS Fluent, OpenFOAM, ho\u1eb7c COMSOL Multiphysics. C\u00e1c c\u00f4ng c\u1ee5 n\u00e0y cung c\u1ea5p c\u00e1c m\u00f4 h\u00ecnh ti\u00ean ti\u1ebfn \u0111\u1ec3 gi\u1ea3i quy\u1ebft c\u00e1c b\u00e0i to\u00e1n ph\u1ee9c t\u1ea1p li\u00ean quan \u0111\u1ebfn d\u00f2ng ch\u1ea3y \u0111a pha.<\/p>\n<h2>\u1ee8ng d\u1ee5ng c\u1ee7a m\u00f4 ph\u1ecfng d\u00f2ng ch\u1ea3y \u0111a pha<\/h2>\n<p>M\u00f4 ph\u1ecfng d\u00f2ng ch\u1ea3y \u0111a pha trong CFD c\u00f3 nhi\u1ec1u \u1ee9ng d\u1ee5ng trong th\u1ef1c t\u1ebf, bao g\u1ed3m:<\/p>\n<ul>\n<li><b>C\u00f4ng nghi\u1ec7p n\u0103ng l\u01b0\u1ee3ng:<\/b> T\u1ed1i \u01b0u h\u00f3a hi\u1ec7u su\u1ea5t c\u1ee7a c\u00e1c n\u1ed3i h\u01a1i, tua-bin v\u00e0 m\u00e1y ph\u00e1t \u0111i\u1ec7n.<\/li>\n<li><b>C\u00f4ng nghi\u1ec7p h\u00f3a ch\u1ea5t:<\/b> C\u1ea3i thi\u1ec7n qu\u00e1 tr\u00ecnh ch\u01b0ng c\u1ea5t, ph\u1ea3n \u1ee9ng h\u00f3a h\u1ecdc v\u00e0 v\u1eadn chuy\u1ec3n ch\u1ea5t l\u1ecfng.<\/li>\n<li><b>K\u1ef9 thu\u1eadt m\u00f4i tr\u01b0\u1eddng:<\/b> Ph\u00e2n t\u00edch v\u00e0 x\u1eed l\u00fd n\u01b0\u1edbc th\u1ea3i, qu\u1ea3n l\u00fd ch\u1ea5t th\u1ea3i r\u1eafn.<\/li>\n<li><b>Y sinh:<\/b> M\u00f4 ph\u1ecfng d\u00f2ng m\u00e1u trong m\u1ea1ch m\u00e1u v\u00e0 s\u1ef1 ph\u1ed5 bi\u1ebfn c\u1ee7a thu\u1ed1c trong c\u01a1 th\u1ec3.<\/li>\n<\/ul>\n<p>Qua \u0111\u00f3, c\u00f3 th\u1ec3 th\u1ea5y m\u00f4 ph\u1ecfng d\u00f2ng ch\u1ea3y \u0111a pha trong CFD kh\u00f4ng ch\u1ec9 cung c\u1ea5p s\u1ef1 hi\u1ec3u bi\u1ebft s\u00e2u s\u1eafc h\u01a1n v\u1ec1 c\u00e1c hi\u1ec7n t\u01b0\u1ee3ng ph\u1ee9c t\u1ea1p m\u00e0 c\u00f2n gi\u00fap c\u1ea3i thi\u1ec7n v\u00e0 t\u1ed1i \u01b0u h\u00f3a c\u00e1c qu\u00e1 tr\u00ecnh k\u1ef9 thu\u1eadt quan tr\u1ecdng trong nhi\u1ec1u l\u0129nh v\u1ef1c kh\u00e1c nhau.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>M\u00f4 ph\u1ecfng d\u00f2ng ch\u1ea3y \u0111a pha trong CFD: H\u01b0\u1edbng d\u1eabn c\u0103n b\u1ea3n v\u1ec1 c\u00e1ch s\u1eed d\u1ee5ng CFD \u0111\u1ec3 ph\u00e2n t\u00edch v\u00e0 t\u1ed1i \u01b0u h\u00f3a d\u00f2ng ch\u1ea3y \u0111a pha trong c\u00e1c 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":"<!-- This site is optimized with the Yoast SEO plugin v15.4 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>M\u00f4 ph\u1ecfng d\u00f2ng ch\u1ea3y \u0111a pha trong CFD<\/title>\n<meta name=\"description\" content=\"M\u00f4 ph\u1ecfng d\u00f2ng ch\u1ea3y \u0111a pha trong CFD: H\u01b0\u1edbng d\u1eabn c\u0103n b\u1ea3n v\u1ec1 c\u00e1ch s\u1eed d\u1ee5ng CFD \u0111\u1ec3 ph\u00e2n t\u00edch v\u00e0 t\u1ed1i \u01b0u h\u00f3a d\u00f2ng ch\u1ea3y \u0111a pha trong c\u00e1c 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\/mo-phong-dong-chay-da-pha-trong-cfd\/\" \/>\n<meta property=\"og:locale\" content=\"vi_VN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"M\u00f4 ph\u1ecfng d\u00f2ng ch\u1ea3y \u0111a pha trong CFD\" \/>\n<meta property=\"og:description\" content=\"M\u00f4 ph\u1ecfng d\u00f2ng ch\u1ea3y \u0111a pha trong CFD: H\u01b0\u1edbng d\u1eabn c\u0103n b\u1ea3n v\u1ec1 c\u00e1ch s\u1eed d\u1ee5ng CFD \u0111\u1ec3 ph\u00e2n t\u00edch v\u00e0 t\u1ed1i \u01b0u h\u00f3a d\u00f2ng ch\u1ea3y \u0111a pha trong c\u00e1c h\u1ec7 th\u1ed1ng nhi\u1ec7t.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.thermal-engineering.org\/vi\/mo-phong-dong-chay-da-pha-trong-cfd\/\" \/>\n<meta property=\"og:site_name\" content=\"Thermal Engineering\" \/>\n<meta property=\"article:published_time\" content=\"2024-08-16T17:10:26+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.thermal-engineering.org\/wp-content\/uploads\/2024\/07\/mo_phong_dong_chay_da_pha_trong_cfd.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=\"4 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\/mo-phong-dong-chay-da-pha-trong-cfd\/#primaryimage\",\"inLanguage\":\"vi-VN\",\"url\":\"https:\/\/www.thermal-engineering.org\/wp-content\/uploads\/2024\/07\/mo_phong_dong_chay_da_pha_trong_cfd.png\",\"width\":1000,\"height\":1000,\"caption\":\"M\\u00f4 ph\\u1ecfng d\\u00f2ng ch\\u1ea3y \\u0111a pha trong CFD\"},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.thermal-engineering.org\/vi\/mo-phong-dong-chay-da-pha-trong-cfd\/#webpage\",\"url\":\"https:\/\/www.thermal-engineering.org\/vi\/mo-phong-dong-chay-da-pha-trong-cfd\/\",\"name\":\"M\\u00f4 ph\\u1ecfng d\\u00f2ng ch\\u1ea3y \\u0111a pha trong CFD\",\"isPartOf\":{\"@id\":\"https:\/\/www.thermal-engineering.org\/fr\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\/\/www.thermal-engineering.org\/vi\/mo-phong-dong-chay-da-pha-trong-cfd\/#primaryimage\"},\"datePublished\":\"2024-08-16T17:10:26+00:00\",\"dateModified\":\"2024-08-16T17:10:26+00:00\",\"author\":{\"@id\":\"https:\/\/www.thermal-engineering.org\/fr\/#\/schema\/person\/e8c544db9afedaec8574d6464f9398bb\"},\"description\":\"M\\u00f4 ph\\u1ecfng d\\u00f2ng ch\\u1ea3y \\u0111a pha trong CFD: H\\u01b0\\u1edbng d\\u1eabn c\\u0103n b\\u1ea3n v\\u1ec1 c\\u00e1ch s\\u1eed d\\u1ee5ng CFD \\u0111\\u1ec3 ph\\u00e2n t\\u00edch v\\u00e0 t\\u1ed1i \\u01b0u h\\u00f3a d\\u00f2ng ch\\u1ea3y \\u0111a pha trong c\\u00e1c h\\u1ec7 th\\u1ed1ng nhi\\u1ec7t.\",\"inLanguage\":\"vi-VN\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/www.thermal-engineering.org\/vi\/mo-phong-dong-chay-da-pha-trong-cfd\/\"]}]},{\"@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\/696881"}],"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=696881"}],"version-history":[{"count":0,"href":"https:\/\/www.thermal-engineering.org\/vi\/wp-json\/wp\/v2\/posts\/696881\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.thermal-engineering.org\/vi\/wp-json\/wp\/v2\/media?parent=696881"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.thermal-engineering.org\/vi\/wp-json\/wp\/v2\/categories?post=696881"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.thermal-engineering.org\/vi\/wp-json\/wp\/v2\/tags?post=696881"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}