{"id":49105,"date":"2019-11-14T14:33:07","date_gmt":"2019-11-14T13:33:07","guid":{"rendered":"https:\/\/www.thermal-engineering.org\/quais-sao-as-caracteristicas-do-fluxo-turbulento-definicao\/"},"modified":"2020-02-01T20:12:23","modified_gmt":"2020-02-01T19:12:23","slug":"quais-sao-as-caracteristicas-do-fluxo-turbulento-definicao","status":"publish","type":"post","link":"https:\/\/www.thermal-engineering.org\/pt-br\/quais-sao-as-caracteristicas-do-fluxo-turbulento-definicao\/","title":{"rendered":"Quais s\u00e3o as caracter\u00edsticas do fluxo turbulento &#8211; Defini\u00e7\u00e3o"},"content":{"rendered":"<div class=\"su-quote su-quote-style-default\">\n<div class=\"su-quote-inner su-clearfix\">Caracter\u00edsticas do fluxo turbulento. O fluxo turbulento tende a ocorrer em velocidades mais altas, baixa viscosidade e em dimens\u00f5es lineares caracter\u00edsticas mais altas. Engenharia T\u00e9rmica<\/div>\n<\/div>\n<div><\/div>\n<div><\/div>\n<div>\n<div class=\"lgc-column lgc-grid-parent lgc-grid-60 lgc-tablet-grid-60 lgc-mobile-grid-100 lgc-equal-heights  lgc-first\">\n<div class=\"inside-grid-column\">\n<h2><span>Caracter\u00edsticas do fluxo turbulento<\/span><\/h2>\n<ul>\n<li><a title=\"Fluxo turbulento\" href=\"https:\/\/www.thermal-engineering.org\/pt-br\/o-que-e-fluxo-turbulento-definicao\/\"><strong><span>O fluxo turbulento<\/span><\/strong><\/a><span>\u00a0tende a ocorrer em<\/span><strong><span>\u00a0velocidades mais altas<\/span><\/strong><span>\u00a0,<\/span><strong><span>\u00a0baixa viscosidade<\/span><\/strong><span>\u00a0e em<\/span><strong><span>\u00a0dimens\u00f5es lineares caracter\u00edsticas<\/span><\/strong><span>\u00a0mais altas.<\/span><\/li>\n<li><span>Se o n\u00famero de Reynolds for maior que Re&gt; 3500, o fluxo ser\u00e1 turbulento.<\/span><\/li>\n<li><strong><span>Irregularidade:<\/span><\/strong><span>\u00a0O fluxo \u00e9 caracterizado pelo movimento irregular das part\u00edculas do fluido.\u00a0O movimento de part\u00edculas fluidas \u00e9 ca\u00f3tico.\u00a0Por esse motivo, o fluxo turbulento \u00e9 normalmente tratado estatisticamente, e n\u00e3o deterministicamente.<\/span><\/li>\n<li><strong><span>Difusividade:<\/span><\/strong><span>\u00a0No fluxo turbulento, existe uma distribui\u00e7\u00e3o de velocidade bastante plana na se\u00e7\u00e3o do tubo, com o resultado de que todo o fluido flui em um determinado valor \u00fanico e cai rapidamente extremamente perto das paredes.\u00a0A caracter\u00edstica respons\u00e1vel pela mistura aprimorada e aumento das taxas de transporte de massa, momento e energia em um fluxo \u00e9 chamada de &#8220;difusividade&#8221;.<\/span><\/li>\n<li><strong><span>Rotacionalidade: O<\/span><\/strong><span>\u00a0\u00a0fluxo turbulento \u00e9 caracterizado por um forte mecanismo tridimensional de gera\u00e7\u00e3o de v\u00f3rtices.\u00a0Esse mecanismo \u00e9 conhecido como alongamento por v\u00f3rtice.<\/span><\/li>\n<li><strong><span>Dissipa\u00e7\u00e3o:<\/span><\/strong><span>\u00a0Um processo dissipativo \u00e9 um processo no qual a energia cin\u00e9tica do fluxo turbulento \u00e9 transformada em energia interna por tens\u00e3o de cisalhamento viscoso.<\/span><\/li>\n<\/ul>\n<figure id=\"attachment_14392\" class=\"wp-caption aligncenter\" aria-describedby=\"caption-attachment-14392\"><a href=\"https:\/\/thermal-engineering.org\/wp-content\/uploads\/2019\/05\/External-Flow-tube.png\"><img loading=\"lazy\" class=\"size-full wp-image-14392 lazy-loaded\" src=\"https:\/\/thermal-engineering.org\/wp-content\/uploads\/2019\/05\/External-Flow-tube.png\" alt=\"Fluxo externo - tubo\" width=\"397\" height=\"428\" data-lazy-type=\"image\" data-src=\"https:\/\/thermal-engineering.org\/wp-content\/uploads\/2019\/05\/External-Flow-tube.png\" \/><\/a><figcaption id=\"caption-attachment-14392\" class=\"wp-caption-text\"><span>Tubo em fluxo cruzado.<\/span><br \/>\n<span>Fonte: Blevins, RD (1990), Vibra\u00e7\u00e3o induzida por fluxo, 2\u00aa Edi\u00e7\u00e3o, Van Nostrand Reinhold Co.<\/span><\/figcaption><\/figure>\n<\/div>\n<\/div>\n<div class=\"lgc-column lgc-grid-parent lgc-grid-40 lgc-tablet-grid-40 lgc-mobile-grid-100 lgc-equal-heights  lgc-last\">\n<div class=\"inside-grid-column\">\n<h2><span>Fluxo Laminar vs. Turbulento<\/span><\/h2>\n<p><a href=\"https:\/\/thermal-engineering.org\/wp-content\/uploads\/2019\/05\/Laminar-vs.-Turbulent-Flow.png\"><img loading=\"lazy\" class=\"aligncenter size-full wp-image-14400 lazy-loaded\" src=\"https:\/\/thermal-engineering.org\/wp-content\/uploads\/2019\/05\/Laminar-vs.-Turbulent-Flow.png\" alt=\"Fluxo Laminar vs. Turbulento\" width=\"335\" height=\"567\" data-lazy-type=\"image\" data-src=\"https:\/\/thermal-engineering.org\/wp-content\/uploads\/2019\/05\/Laminar-vs.-Turbulent-Flow.png\" \/><\/a><\/p>\n<p><strong><a title=\"Fluxo Laminar - Fluxo Viscoso\" href=\"https:\/\/www.thermal-engineering.org\/pt-br\/o-que-e-fluxo-laminar-fluxo-viscoso-definicao\/\"><span>Fluxo laminar<\/span><\/a><span>\u00a0:<\/span><\/strong><\/p>\n<ul>\n<li><strong><span>Re &lt;2000<\/span><\/strong><\/li>\n<li><span>velocidade &#8216;baixa&#8217;<\/span><\/li>\n<li><span>Part\u00edculas fluidas se movem em\u00a0<\/span><strong><span>linhas retas<\/span><\/strong><\/li>\n<li><span>Camadas de \u00e1gua fluem umas sobre as outras em velocidades diferentes,\u00a0<\/span><strong><span>praticamente sem mistura<\/span><\/strong><span>\u00a0entre as camadas.<\/span><\/li>\n<li><span>O perfil da velocidade do fluxo para o fluxo laminar em tubos circulares \u00e9 parab\u00f3lico, com um fluxo m\u00e1ximo no centro do tubo e um fluxo m\u00ednimo nas paredes do tubo.<\/span><\/li>\n<li><span>A velocidade m\u00e9dia do fluxo \u00e9 aproximadamente metade da velocidade m\u00e1xima.<\/span><\/li>\n<li><span>\u00c9 poss\u00edvel uma an\u00e1lise matem\u00e1tica simples.<\/span><\/li>\n<li><strong><span>Raro na pr\u00e1tica em sistemas de \u00e1gua<\/span><\/strong><span>\u00a0.<\/span><\/li>\n<\/ul>\n<p><strong><a title=\"Fluxo turbulento\" href=\"https:\/\/www.thermal-engineering.org\/pt-br\/o-que-e-fluxo-turbulento-definicao\/\"><span>Fluxo turbulento<\/span><\/a><span>\u00a0:<\/span><\/strong><\/p>\n<ul>\n<li><strong><span>Re&gt; 4000<\/span><\/strong><\/li>\n<li><span>&#8216;alta velocidade<\/span><\/li>\n<li><span>O fluxo \u00e9 caracterizado pelo\u00a0<\/span><strong><span>movimento irregular<\/span><\/strong><span>\u00a0de part\u00edculas do fluido.<\/span><\/li>\n<li><span>O movimento m\u00e9dio est\u00e1 na dire\u00e7\u00e3o do fluxo<\/span><\/li>\n<li><span>O perfil de velocidade do fluxo para turbul\u00eancia \u00e9 bastante plano atrav\u00e9s da se\u00e7\u00e3o central de um tubo e cai rapidamente extremamente perto das paredes.<\/span><\/li>\n<li><span>A velocidade m\u00e9dia do fluxo \u00e9 aproximadamente igual \u00e0 velocidade no centro do tubo.<\/span><\/li>\n<li><span>A an\u00e1lise matem\u00e1tica \u00e9 muito dif\u00edcil.<\/span><\/li>\n<li><strong><span>Tipo mais comum de fluxo<\/span><\/strong><span>\u00a0.<\/span><\/li>\n<\/ul>\n<\/div>\n<\/div>\n<\/div>\n<div><\/div>\n<div><\/div>\n<div>\n<p>&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;.<\/p>\n<p>Este artigo \u00e9 baseado na tradu\u00e7\u00e3o autom\u00e1tica do artigo original em ingl\u00eas. Para mais informa\u00e7\u00f5es, consulte o artigo em ingl\u00eas. Voc\u00ea pode nos ajudar. Se voc\u00ea deseja corrigir a tradu\u00e7\u00e3o, envie-a para: translations@nuclear-power.com ou preencha o formul\u00e1rio de tradu\u00e7\u00e3o on-line. Agradecemos sua ajuda, atualizaremos a tradu\u00e7\u00e3o o mais r\u00e1pido poss\u00edvel. Obrigado.<\/p>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Caracter\u00edsticas do fluxo turbulento. O fluxo turbulento tende a ocorrer em velocidades mais altas, baixa viscosidade e em dimens\u00f5es lineares caracter\u00edsticas mais altas. Engenharia T\u00e9rmica Caracter\u00edsticas do fluxo turbulento O fluxo turbulento\u00a0tende a ocorrer em\u00a0velocidades mais altas\u00a0,\u00a0baixa viscosidade\u00a0e em\u00a0dimens\u00f5es lineares caracter\u00edsticas\u00a0mais altas. Se o n\u00famero de Reynolds for maior que Re&gt; 3500, o fluxo ser\u00e1 &#8230; <a title=\"Quais s\u00e3o as caracter\u00edsticas do fluxo turbulento &#8211; Defini\u00e7\u00e3o\" class=\"read-more\" href=\"https:\/\/www.thermal-engineering.org\/pt-br\/quais-sao-as-caracteristicas-do-fluxo-turbulento-definicao\/\" aria-label=\"More on Quais s\u00e3o as caracter\u00edsticas do fluxo turbulento &#8211; Defini\u00e7\u00e3o\">Ler mais<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[14],"tags":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v15.4 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Quais s\u00e3o as caracter\u00edsticas do fluxo turbulento - Defini\u00e7\u00e3o<\/title>\n<meta name=\"description\" content=\"Caracter\u00edsticas do fluxo turbulento. 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