{"id":47408,"date":"2019-11-04T07:59:42","date_gmt":"2019-11-04T06:59:42","guid":{"rendered":"https:\/\/www.thermal-engineering.org\/o-que-e-pressao-estatica-definicao\/"},"modified":"2020-01-23T13:13:33","modified_gmt":"2020-01-23T12:13:33","slug":"o-que-e-pressao-estatica-definicao","status":"publish","type":"post","link":"https:\/\/www.thermal-engineering.org\/pt-br\/o-que-e-pressao-estatica-definicao\/","title":{"rendered":"O que \u00e9 press\u00e3o est\u00e1tica – Defini\u00e7\u00e3o"},"content":{"rendered":"
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O termo press\u00e3o est\u00e1tica \u00e9 id\u00eantico ao termo press\u00e3o e pode ser identificado para cada ponto em um campo de fluxo de fluido.\u00a0A press\u00e3o est\u00e1tica \u00e9 um dos termos da equa\u00e7\u00e3o de Bernoulli<\/div>\n<\/div>\n
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Press\u00e3o est\u00e1tica<\/h2>\n

Em geral, a\u00a0press\u00e3o<\/strong>\u00a0\u00a0\u00e9 uma medida da\u00a0\u00a0for\u00e7a exercida<\/strong>\u00a0\u00a0por unidade de \u00e1rea nos limites de uma subst\u00e2ncia.\u00a0Na din\u00e2mica de fluidos, muitos autores usam o termo press\u00e3o est\u00e1tica em vez de apenas press\u00e3o para evitar ambiguidade.\u00a0O termo\u00a0press\u00e3o est\u00e1tica<\/strong>\u00a0\u00e9 id\u00eantico ao termo press\u00e3o e pode ser identificado para cada ponto em um campo de fluxo de fluido.<\/p>\n

A press\u00e3o est\u00e1tica<\/strong>\u00a0\u00e9 um dos termos da\u00a0equa\u00e7\u00e3o<\/a><\/strong>\u00a0de\u00a0\u00a0Bernoulli<\/a>\u00a0:<\/strong><\/p>\n

\"Teorema<\/a><\/p>\n

O\u00a0efeito\u00a0<\/strong>de Bernoulli<\/strong>\u00a0causa a\u00a0\u00a0redu\u00e7\u00e3o da press\u00e3o do fluido (press\u00e3o est\u00e1tica – p)<\/strong>\u00a0\u00a0em regi\u00f5es onde a velocidade do fluxo \u00e9 aumentada.\u00a0Esse abaixamento da press\u00e3o em uma constri\u00e7\u00e3o de um caminho de fluxo pode parecer contra-intuitivo, mas parece menos quando voc\u00ea considera a press\u00e3o como densidade de energia.\u00a0No fluxo de alta velocidade atrav\u00e9s da constri\u00e7\u00e3o, a energia cin\u00e9tica (press\u00e3o din\u00e2mica – \u00bd.\u03c1.v\u00a02<\/sup>\u00a0) deve aumentar \u00e0 custa da energia da press\u00e3o (\u00a0press\u00e3o est\u00e1tica – p<\/strong>\u00a0).<\/p>\n

A forma simplificada da equa\u00e7\u00e3o de Bernoulli pode ser resumida na seguinte equa\u00e7\u00e3o memor\u00e1vel da palavra:<\/p>\n

press\u00e3o est\u00e1tica<\/a>\u00a0\u00a0+\u00a0\u00a0press\u00e3o\u00a0<\/a>din\u00e2mica<\/a>\u00a0\u00a0=\u00a0\u00a0press\u00e3o total (press\u00e3o de estagna\u00e7\u00e3o)<\/a><\/em><\/p>\n

A press\u00e3o total e din\u00e2mica n\u00e3o s\u00e3o press\u00f5es no sentido usual – elas n\u00e3o podem ser medidas usando um aneroide, tubo de Bourdon ou coluna de merc\u00fario.<\/p>\n<\/div>\n<\/div>\n

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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<\/div>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

O termo press\u00e3o est\u00e1tica \u00e9 id\u00eantico ao termo press\u00e3o e pode ser identificado para cada ponto em um campo de fluxo de fluido.\u00a0A press\u00e3o est\u00e1tica \u00e9 um dos termos da equa\u00e7\u00e3o de Bernoulli Press\u00e3o est\u00e1tica Em geral, a\u00a0press\u00e3o\u00a0\u00a0\u00e9 uma medida da\u00a0\u00a0for\u00e7a exercida\u00a0\u00a0por unidade de \u00e1rea nos limites de uma subst\u00e2ncia.\u00a0Na din\u00e2mica de fluidos, muitos autores … 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":"\nO que \u00e9 press\u00e3o est\u00e1tica - Defini\u00e7\u00e3o<\/title>\n<meta name=\"description\" content=\"O termo press\u00e3o est\u00e1tica \u00e9 id\u00eantico ao termo press\u00e3o e pode ser identificado para cada ponto em um campo de fluxo de fluido. 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