{"id":682180,"date":"2024-07-26T09:36:42","date_gmt":"2024-07-26T08:36:42","guid":{"rendered":"https:\/\/www.thermal-engineering.org\/?p=682180"},"modified":"2024-07-26T09:36:42","modified_gmt":"2024-07-26T08:36:42","slug":"10-cong-cu-dong-luc-hoc-chat-long-cho-ky-su","status":"publish","type":"post","link":"https:\/\/www.thermal-engineering.org\/vi\/10-cong-cu-dong-luc-hoc-chat-long-cho-ky-su\/","title":{"rendered":"10 C\u00f4ng C\u1ee5 \u0110\u1ed9ng L\u1ef1c H\u1ecdc Ch\u1ea5t L\u1ecfng Cho K\u1ef9 S\u01b0"},"content":{"rendered":"

10 C\u00f4ng C\u1ee5 \u0110\u1ed9ng L\u1ef1c H\u1ecdc Ch\u1ea5t L\u1ecfng Cho K\u1ef9 S\u01b0: H\u01b0\u1edbng d\u1eabn v\u1ec1 c\u00e1c ph\u1ea7n m\u1ec1m v\u00e0 thi\u1ebft b\u1ecb quan tr\u1ecdng gi\u00fap t\u1ed1i \u01b0u h\u00f3a qu\u00e1 tr\u00ecnh thi\u1ebft k\u1ebf v\u00e0 m\u00f4 ph\u1ecfng nhi\u1ec7t \u0111\u1ed9ng l\u1ef1c h\u1ecdc.<\/p>\n

\"10<\/p>\n

10 C\u00f4ng C\u1ee5 \u0110\u1ed9ng L\u1ef1c H\u1ecdc Ch\u1ea5t L\u1ecfng Cho K\u1ef9 S\u01b0<\/h2>\n

\u0110\u1ed9ng l\u1ef1c h\u1ecdc ch\u1ea5t l\u1ecfng l\u00e0 m\u1ed9t nh\u00e1nh quan tr\u1ecdng c\u1ee7a k\u1ef9 thu\u1eadt nhi\u1ec7t, gi\u00fap ch\u00fang ta hi\u1ec3u v\u00e0 \u0111i\u1ec1u ch\u1ec9nh c\u00e1ch ch\u1ea5t l\u1ecfng ch\u1ea3y v\u00e0 t\u01b0\u01a1ng t\u00e1c trong c\u00e1c h\u1ec7 th\u1ed1ng kh\u00e1c nhau. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 danh s\u00e1ch 10 c\u00f4ng c\u1ee5 ph\u1ed5 bi\u1ebfn nh\u1ea5t m\u00e0 c\u00e1c k\u1ef9 s\u01b0 \u0111\u1ed9ng l\u1ef1c h\u1ecdc ch\u1ea5t l\u1ecfng s\u1eed d\u1ee5ng \u0111\u1ec3 gi\u1ea3i quy\u1ebft c\u00e1c v\u1ea5n \u0111\u1ec1 ph\u1ee9c t\u1ea1p trong th\u1ef1c t\u1ebf.<\/p>\n

<\/p>\n

  • Ph\u01b0\u01a1ng Tr\u00ecnh Bernoulli:<\/b> \u0110\u00e2y l\u00e0 m\u1ed9t ph\u01b0\u01a1ng tr\u00ecnh c\u01a1 b\u1ea3n trong \u0111\u1ed9ng l\u1ef1c h\u1ecdc ch\u1ea5t l\u1ecfng bi\u1ec3u di\u1ec5n m\u1ed1i quan h\u1ec7 gi\u1eefa \u00e1p su\u1ea5t, v\u1eadn t\u1ed1c v\u00e0 \u0111\u1ed9 cao c\u1ee7a m\u1ed9t d\u00f2ng ch\u1ea3y. C\u00f4ng th\u1ee9c Bernoulli l\u00e0:<\/li>\n

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

    \n P + \\(\\frac{1}{2} \\rho v^{2}\\) + \\(\\rho gh\\) = constant<\/i>
    \n
    trong \u0111\u00f3:
    \n <\/p>\n

  • P: \u00e1p su\u1ea5t<\/li>\n
  • \\(\\rho\\): m\u1eadt \u0111\u1ed9 ch\u1ea5t l\u1ecfng<\/li>\n
  • v: v\u1eadn t\u1ed1c d\u00f2ng ch\u1ea3y<\/li>\n
  • g: gia t\u1ed1c tr\u1ecdng tr\u01b0\u1eddng<\/li>\n
  • h: \u0111\u1ed9 cao<\/li>\n

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

    <\/p>\n

  • Ph\u1ea7n M\u1ec1m Computational Fluid Dynamics (CFD):<\/b> \u0110\u00e2y l\u00e0 c\u00e1c ph\u1ea7n m\u1ec1m nh\u01b0 ANSYS Fluent, OpenFOAM gi\u00fap m\u00f4 ph\u1ecfng v\u00e0 ph\u00e2n t\u00edch d\u00f2ng ch\u1ea3y ph\u1ee9c t\u1ea1p trong c\u00e1c h\u1ec7 th\u1ed1ng v\u00e0 thi\u1ebft b\u1ecb k\u1ef9 thu\u1eadt.<\/li>\n
  • \u0110\u1ed3ng H\u1ed3 \u0110o L\u01b0u L\u01b0\u1ee3ng:<\/b> C\u00e1c thi\u1ebft b\u1ecb nh\u01b0 \u0111\u1ed3ng h\u1ed3 \u0111o l\u01b0u l\u01b0\u1ee3ng ki\u1ec3u tuabin, \u0111\u1ed3ng h\u1ed3 \u0111o l\u01b0u l\u01b0\u1ee3ng si\u00eau \u00e2m cho ph\u00e9p \u0111o ch\u00ednh x\u00e1c l\u01b0u l\u01b0\u1ee3ng c\u1ee7a ch\u1ea5t l\u1ecfng trong \u0111\u01b0\u1eddng \u1ed1ng.<\/li>\n
  • \u1ed0ng Venturi:<\/b> L\u00e0 m\u1ed9t d\u1ee5ng c\u1ee5 \u0111\u01a1n gi\u1ea3n \u0111\u01b0\u1ee3c d\u00f9ng \u0111\u1ec3 \u0111o l\u01b0u t\u1ed1c v\u00e0 l\u01b0u l\u01b0\u1ee3ng c\u1ee7a ch\u1ea5t l\u1ecfng. Nguy\u00ean l\u00fd ho\u1ea1t \u0111\u1ed9ng d\u1ef1a tr\u00ean \u0111\u1ecbnh lu\u1eadt Bernoulli.<\/li>\n
  • Ph\u01b0\u01a1ng Tr\u00ecnh Navier-Stokes:<\/b> \u0110\u00e2y l\u00e0 h\u1ec7 ph\u01b0\u01a1ng tr\u00ecnh vi ph\u00e2n m\u00f4 t\u1ea3 chuy\u1ec3n \u0111\u1ed9ng c\u1ee7a ch\u1ea5t l\u1ecfng. Ph\u01b0\u01a1ng tr\u00ecnh n\u00e0y l\u00e0 c\u0103n b\u1ea3n cho nhi\u1ec1u m\u00f4 h\u00ecnh \u0111\u1ed9ng l\u1ef1c h\u1ecdc ch\u1ea5t l\u1ecfng ti\u00ean ti\u1ebfn:<\/li>\n

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

    \n \\(\\rho \\left(\\frac{\\partial v}{\\partial t} + v \\cdot \\nabla v\\right) = – \\nabla P + \\mu \\nabla^{2} v + f\\)<\/i>
    \n
    trong \u0111\u00f3:
    \n <\/p>\n

  • \\(\\rho\\): m\u1eadt \u0111\u1ed9<\/li>\n
  • v: v\u1eadn t\u1ed1c d\u00f2ng ch\u1ea3y<\/li>\n
  • t: th\u1eddi gian<\/li>\n
  • P: \u00e1p su\u1ea5t<\/li>\n
  • \\(\\mu\\): \u0111\u1ed9 nh\u1edbt \u0111\u1ed9ng h\u1ecdc<\/li>\n
  • f: l\u1ef1c ngo\u00e0i<\/li>\n

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

    <\/p>\n

  • \u0110\u1ed3ng H\u1ed3 \u0110o \u00c1p Su\u1ea5t:<\/b> C\u1ea7n thi\u1ebft \u0111\u1ec3 theo d\u00f5i v\u00e0 ki\u1ec3m so\u00e1t \u00e1p su\u1ea5t trong c\u00e1c h\u1ec7 th\u1ed1ng ch\u1ea5t l\u1ecfng, \u0111\u1ea3m b\u1ea3o ch\u00fang ho\u1ea1t \u0111\u1ed9ng an to\u00e0n v\u00e0 hi\u1ec7u qu\u1ea3.<\/li>\n
  • \u1ed0ng Pitot:<\/b> D\u00f9ng \u0111\u1ec3 \u0111o v\u1eadn t\u1ed1c c\u1ee7a d\u00f2ng ch\u1ea3y nh\u1edd v\u00e0o s\u1ef1 ch\u00eanh l\u1ec7ch \u00e1p su\u1ea5t t\u0129nh v\u00e0 \u00e1p su\u1ea5t \u0111\u1ed9ng.<\/li>\n
  • Tank Th\u1ee7y L\u1ef1c:<\/b> L\u00e0m \u1ed5n \u0111\u1ecbnh v\u00e0 l\u01b0u tr\u1eef ch\u1ea5t l\u1ecfng trong c\u00e1c h\u1ec7 th\u1ed1ng th\u1ee7y l\u1ef1c, \u0111i\u1ec1u ch\u1ec9nh \u00e1p su\u1ea5t v\u00e0 l\u01b0u l\u01b0\u1ee3ng.<\/li>\n
  • Th\u00ed Nghi\u1ec7m L\u00f2ng D\u00f2ng:<\/b> C\u00e1c m\u00f4 h\u00ecnh th\u1eed nghi\u1ec7m n\u00e0y gi\u00fap ph\u00e2n t\u00edch v\u00e0 t\u1ed1i \u01b0u h\u00f3a thi\u1ebft k\u1ebf c\u1ee7a c\u00e1c k\u1ebft c\u1ea5u th\u1ee7y l\u1ef1c v\u00e0 \u0111\u01b0\u1eddng \u1ed1ng.<\/li>\n
  • Ph\u1ea7n M\u1ec1m Ph\u00e2n T\u00edch Ch\u1ebf \u0110\u1ed9 \u1ed4n \u0110\u1ecbnh:<\/b> S\u1eed d\u1ee5ng \u0111\u1ec3 d\u1ef1 \u0111o\u00e1n v\u00e0 ph\u00f2ng tr\u00e1nh c\u00e1c hi\u1ec7n t\u01b0\u1ee3ng kh\u00f4ng \u1ed5n \u0111\u1ecbnh trong d\u00f2ng ch\u1ea3y, nh\u01b0 hi\u1ec7n t\u01b0\u1ee3ng dao \u0111\u1ed9ng v\u00e0 x\u00e2m th\u1ef1c.<\/li>\n

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

    M\u1ed7i c\u00f4ng c\u1ee5 n\u00e0y \u0111\u1ec1u \u0111\u00f3ng vai tr\u00f2 quan tr\u1ecdng trong vi\u1ec7c gi\u00fap c\u00e1c k\u1ef9 s\u01b0 ph\u00e2n t\u00edch, thi\u1ebft k\u1ebf v\u00e0 \u0111i\u1ec1u ch\u1ec9nh c\u00e1c h\u1ec7 th\u1ed1ng li\u00ean quan \u0111\u1ebfn ch\u1ea5t l\u1ecfng, t\u1eeb nh\u1eefng \u1ee9ng d\u1ee5ng \u0111\u01a1n gi\u1ea3n \u0111\u1ebfn nh\u1eefng h\u1ec7 th\u1ed1ng ph\u1ee9c t\u1ea1p h\u00e0ng \u0111\u1ea7u.<\/p>\n","protected":false},"excerpt":{"rendered":"

    10 C\u00f4ng C\u1ee5 \u0110\u1ed9ng L\u1ef1c H\u1ecdc Ch\u1ea5t L\u1ecfng Cho K\u1ef9 S\u01b0: H\u01b0\u1edbng d\u1eabn v\u1ec1 c\u00e1c ph\u1ea7n m\u1ec1m v\u00e0 thi\u1ebft b\u1ecb quan tr\u1ecdng gi\u00fap t\u1ed1i \u01b0u h\u00f3a qu\u00e1 tr\u00ecnh thi\u1ebft k\u1ebf v\u00e0 m\u00f4 ph\u1ecfng nhi\u1ec7t \u0111\u1ed9ng l\u1ef1c h\u1ecdc.<\/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":"\n10 C\u00f4ng C\u1ee5 \u0110\u1ed9ng L\u1ef1c H\u1ecdc Ch\u1ea5t L\u1ecfng Cho K\u1ef9 S\u01b0<\/title>\n<meta name=\"description\" content=\"10 C\u00f4ng C\u1ee5 \u0110\u1ed9ng L\u1ef1c H\u1ecdc Ch\u1ea5t L\u1ecfng Cho K\u1ef9 S\u01b0: H\u01b0\u1edbng d\u1eabn v\u1ec1 c\u00e1c ph\u1ea7n m\u1ec1m v\u00e0 thi\u1ebft b\u1ecb quan tr\u1ecdng gi\u00fap t\u1ed1i \u01b0u h\u00f3a qu\u00e1 tr\u00ecnh thi\u1ebft k\u1ebf v\u00e0 m\u00f4 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