{"id":710237,"date":"2024-10-31T10:50:19","date_gmt":"2024-10-31T09:50:19","guid":{"rendered":"https:\/\/www.thermal-engineering.org\/?p=710237"},"modified":"2024-10-31T10:50:19","modified_gmt":"2024-10-31T09:50:19","slug":"cach-dong-co-ten-lua-tao-ra-luc-day","status":"publish","type":"post","link":"https:\/\/www.thermal-engineering.org\/vi\/cach-dong-co-ten-lua-tao-ra-luc-day\/","title":{"rendered":"C\u00e1ch \u0111\u1ed9ng c\u01a1 t\u00ean l\u1eeda t\u1ea1o ra l\u1ef1c \u0111\u1ea9y"},"content":{"rendered":"

C\u00e1ch \u0111\u1ed9ng c\u01a1 t\u00ean l\u1eeda t\u1ea1o ra l\u1ef1c \u0111\u1ea9y: Gi\u1ea3i th\u00edch c\u00e1ch \u0111\u1ed9ng c\u01a1 t\u00ean l\u1eeda chuy\u1ec3n h\u00f3a n\u0103ng l\u01b0\u1ee3ng t\u1eeb nhi\u00ean li\u1ec7u th\u00e0nh l\u1ef1c \u0111\u1ea9y, gi\u00fap t\u00ean l\u1eeda bay v\u00e0o kh\u00f4ng gian.<\/p>\n

\"C\u00e1ch<\/p>\n

C\u00e1ch \u0111\u1ed9ng c\u01a1 t\u00ean l\u1eeda t\u1ea1o ra l\u1ef1c \u0111\u1ea9y<\/h2>\n

\u0110\u1ed9ng c\u01a1 t\u00ean l\u1eeda l\u00e0 m\u1ed9t ph\u00e1t minh quan tr\u1ecdng trong l\u0129nh v\u1ef1c k\u1ef9 thu\u1eadt nhi\u1ec7t, s\u1eed d\u1ee5ng nguy\u00ean l\u00fd ph\u1ea3n l\u1ef1c c\u1ee7a \u0111\u1ecbnh lu\u1eadt Th\u1ee9 Ba c\u1ee7a Newton \u0111\u1ec3 t\u1ea1o ra l\u1ef1c \u0111\u1ea9y. H\u00e3y c\u00f9ng t\u00ecm hi\u1ec3u c\u00e1ch th\u1ee9c ho\u1ea1t \u0111\u1ed9ng c\u1ee7a \u0111\u1ed9ng c\u01a1 t\u00ean l\u1eeda v\u00e0 c\u00e1c ph\u01b0\u01a1ng tr\u00ecnh c\u01a1 b\u1ea3n \u0111\u1ec3 gi\u1ea3i th\u00edch qu\u00e1 tr\u00ecnh n\u00e0y.<\/p>\n

Nguy\u00ean l\u00fd c\u01a1 b\u1ea3n<\/h2>\n

Theo \u0111\u1ecbnh lu\u1eadt Th\u1ee9 Ba c\u1ee7a Newton, m\u1ecdi h\u00e0nh \u0111\u1ed9ng \u0111\u1ec1u c\u00f3 m\u1ed9t ph\u1ea3n \u1ee9ng t\u01b0\u01a1ng \u0111\u01b0\u01a1ng v\u00e0 ng\u01b0\u1ee3c chi\u1ec1u. \u0110\u1ed1i v\u1edbi \u0111\u1ed9ng c\u01a1 t\u00ean l\u1eeda, h\u00e0nh \u0111\u1ed9ng n\u00e0y l\u00e0 vi\u1ec7c \u0111\u1ea9y kh\u1ed1i l\u01b0\u01a1ng l\u1edbn kh\u00ed ra ph\u00eda sau, v\u00e0 ph\u1ea3n \u1ee9ng l\u00e0 l\u1ef1c \u0111\u1ea9y t\u00ean l\u1eeda \u0111i v\u1ec1 ph\u00eda tr\u01b0\u1edbc. Qu\u00e1 tr\u00ecnh n\u00e0y x\u1ea3y ra trong bu\u1ed3ng \u0111\u1ed1t c\u1ee7a \u0111\u1ed9ng c\u01a1, n\u01a1i m\u00e0 nhi\u00ean li\u1ec7u v\u00e0 ch\u1ea5t oxi h\u00f3a \u0111\u01b0\u1ee3c \u0111\u1ed1t ch\u00e1y \u1edf nhi\u1ec7t \u0111\u1ed9 v\u00e0 \u00e1p su\u1ea5t cao.<\/p>\n

Qu\u00e1 tr\u00ecnh \u0111\u1ed1t ch\u00e1y<\/h2>\n

<\/p>\n

  • Nhi\u00ean li\u1ec7u v\u00e0 ch\u1ea5t oxi h\u00f3a \u0111\u01b0\u1ee3c l\u01b0u tr\u1eef trong c\u00e1c b\u1ed3n ch\u1ee9a ri\u00eang bi\u1ec7t.<\/li>\n
  • C\u00e1c ch\u1ea5t n\u00e0y \u0111\u01b0\u1ee3c b\u01a1m v\u00e0o bu\u1ed3ng \u0111\u1ed1t theo t\u1ef7 l\u1ec7 nh\u1ea5t \u0111\u1ecbnh.<\/li>\n
  • Khi \u0111\u1ed1t ch\u00e1y, nhi\u1ec7t l\u01b0\u1ee3ng l\u1edbn sinh ra l\u00e0m t\u0103ng \u00e1p su\u1ea5t c\u1ee7a kh\u00ed, d\u1eabn \u0111\u1ebfn s\u1ef1 m\u1edf ra c\u1ee7a c\u00e1c van v\u00e0 v\u00f2i phun.<\/li>\n
  • Kh\u00ed n\u00f3ng \u0111\u01b0\u1ee3c \u0111\u1ea9y ra ph\u00eda sau v\u1edbi t\u1ed1c \u0111\u1ed9 cao, t\u1ea1o ra l\u1ef1c \u0111\u1ea9y t\u00ean l\u1eeda.<\/li>\n

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

    C\u00f4ng th\u1ee9c t\u00ednh l\u1ef1c \u0111\u1ea9y<\/h2>\n

    L\u1ef1c \u0111\u1ea9y (F) m\u00e0 \u0111\u1ed9ng c\u01a1 t\u00ean l\u1eeda t\u1ea1o ra c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c t\u00ednh b\u1eb1ng ph\u01b0\u01a1ng tr\u00ecnh:<\/p>\n

    F = \\(\\dot{m}\\) * v + (P\\(_e\\) – P\\(_0\\)) * A\\(_e\\)<\/p>\n

    Trong \u0111\u00f3:<\/p>\n

    <\/p>\n

  • \\(\\dot{m}\\): L\u01b0u l\u01b0\u1ee3ng kh\u1ed1i (kg\/s)<\/li>\n
  • v: V\u1eadn t\u1ed1c c\u1ee7a kh\u00ed x\u1ea3 t\u1ea1i \u0111\u1ea7u v\u00f2i (m\/s)<\/li>\n
  • P\\(_e\\): \u00c1p su\u1ea5t t\u1ea1i \u0111\u1ea7u v\u00f2i (Pa)<\/li>\n
  • P\\(_0\\): \u00c1p su\u1ea5t m\u00f4i tr\u01b0\u1eddng xung quanh (Pa)<\/li>\n
  • A\\(_e\\): Di\u1ec7n t\u00edch \u0111\u1ea7u v\u00f2i (m\\(^2\\))<\/li>\n

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

    Hi\u1ec7u su\u1ea5t c\u1ee7a \u0111\u1ed9ng c\u01a1 t\u00ean l\u1eeda<\/h2>\n

    Hi\u1ec7u su\u1ea5t c\u1ee7a m\u1ed9t \u0111\u1ed9ng c\u01a1 t\u00ean l\u1eeda th\u01b0\u1eddng \u0111\u01b0\u1ee3c \u0111o b\u1eb1ng xung \u0111\u1eb7c bi\u1ec7t (I\\(_sp\\)), \u0111\u1ea1i di\u1ec7n cho l\u1ef1c \u0111\u1ea9y m\u1ed7i \u0111\u01a1n v\u1ecb kh\u1ed1i l\u01b0\u1ee3ng nhi\u00ean li\u1ec7u. C\u00f4ng th\u1ee9c t\u00ednh xung \u0111\u1eb7c bi\u1ec7t l\u00e0:<\/p>\n

    I\\(_sp\\) = F \/ (\\(\\dot{m}\\) * g\\(_0\\))<\/p>\n

    Trong \u0111\u00f3:<\/p>\n

    <\/p>\n

  • g\\(_0\\) l\u00e0 gia t\u1ed1c tr\u1ecdng tr\u01b0\u1eddng ti\u00eau chu\u1ea9n (9.81 m\/s\\(^2\\))<\/li>\n

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

    K\u1ebft lu\u1eadn<\/h2>\n

    \u0110\u1ed9ng c\u01a1 t\u00ean l\u1eeda s\u1eed d\u1ee5ng nguy\u00ean l\u00fd ph\u1ea3n l\u1ef1c \u0111\u1ec3 t\u1ea1o ra l\u1ef1c \u0111\u1ea9y qua qu\u00e1 tr\u00ecnh \u0111\u1ed1t ch\u00e1y nhi\u00ean li\u1ec7u v\u00e0 ch\u1ea5t oxi h\u00f3a. C\u00e1c c\u00f4ng th\u1ee9c t\u00ednh l\u1ef1c \u0111\u1ea9y v\u00e0 xung \u0111\u1eb7c bi\u1ec7t gi\u00fap ch\u00fang ta hi\u1ec3u r\u00f5 h\u01a1n v\u1ec1 hi\u1ec7u su\u1ea5t v\u00e0 kh\u1ea3 n\u0103ng c\u1ee7a \u0111\u1ed9ng c\u01a1 t\u00ean l\u1eeda, m\u1edf ra nhi\u1ec1u \u1ee9ng d\u1ee5ng trong do th\u00e1m kh\u00f4ng gian v\u00e0 v\u0169 tr\u1ee5.<\/p>\n","protected":false},"excerpt":{"rendered":"

    C\u00e1ch \u0111\u1ed9ng c\u01a1 t\u00ean l\u1eeda t\u1ea1o ra l\u1ef1c \u0111\u1ea9y: Gi\u1ea3i th\u00edch c\u00e1ch \u0111\u1ed9ng c\u01a1 t\u00ean l\u1eeda chuy\u1ec3n h\u00f3a n\u0103ng l\u01b0\u1ee3ng t\u1eeb nhi\u00ean li\u1ec7u th\u00e0nh l\u1ef1c \u0111\u1ea9y, gi\u00fap t\u00ean l\u1eeda bay v\u00e0o kh\u00f4ng gian.<\/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":"\nC\u00e1ch \u0111\u1ed9ng c\u01a1 t\u00ean l\u1eeda t\u1ea1o ra l\u1ef1c \u0111\u1ea9y<\/title>\n<meta name=\"description\" content=\"C\u00e1ch \u0111\u1ed9ng c\u01a1 t\u00ean l\u1eeda t\u1ea1o ra l\u1ef1c \u0111\u1ea9y: Gi\u1ea3i th\u00edch c\u00e1ch \u0111\u1ed9ng c\u01a1 t\u00ean l\u1eeda chuy\u1ec3n h\u00f3a n\u0103ng l\u01b0\u1ee3ng t\u1eeb nhi\u00ean li\u1ec7u th\u00e0nh l\u1ef1c \u0111\u1ea9y, gi\u00fap t\u00ean l\u1eeda bay v\u00e0o kh\u00f4ng 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