{"id":47495,"date":"2019-11-05T05:16:28","date_gmt":"2019-11-05T04:16:28","guid":{"rendered":"https:\/\/www.thermal-engineering.org\/o-que-e-o-arrastar-formulario-arrastar-pressao-definicao\/"},"modified":"2020-01-23T14:53:22","modified_gmt":"2020-01-23T13:53:22","slug":"o-que-e-o-arrastar-formulario-arrastar-pressao-definicao","status":"publish","type":"post","link":"https:\/\/www.thermal-engineering.org\/pt-br\/o-que-e-o-arrastar-formulario-arrastar-pressao-definicao\/","title":{"rendered":"O que \u00e9 o Arrastar formul\u00e1rio – Arrastar press\u00e3o – Defini\u00e7\u00e3o"},"content":{"rendered":"
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O arrasto de forma conhecido tamb\u00e9m como arrasto de press\u00e3o surge devido \u00e0 forma e tamanho do objeto.\u00a0A for\u00e7a de arrasto surge da diferen\u00e7a entre as press\u00f5es agindo na frente e atr\u00e1s do corpo imerso.\u00a0Engenharia T\u00e9rmica<\/div>\n<\/div>\n
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Arrastar formul\u00e1rio – Arrastar press\u00e3o<\/h2>\n

\"arrasto<\/a>O arrasto de forma<\/strong>\u00a0conhecido tamb\u00e9m como\u00a0arrasto de press\u00e3o<\/strong>\u00a0surge devido \u00e0\u00a0forma<\/strong>\u00a0e\u00a0tamanho<\/strong>\u00a0do objeto.\u00a0O\u00a0arrasto de press\u00e3o<\/strong>\u00a0\u00e9 proporcional \u00e0 diferen\u00e7a entre as press\u00f5es que atuam na frente e atr\u00e1s do corpo imerso e a \u00e1rea frontal.\u00a0Esse tipo de for\u00e7a de arrasto tamb\u00e9m \u00e9 uma conseq\u00fc\u00eancia interessante\u00a0do efeito de Bernoulli<\/a>\u00a0.\u00a0<\/strong>De acordo com o princ\u00edpio de Bernoulli, o ar em movimento mais r\u00e1pido exerce menos\u00a0press\u00e3o<\/a>\u00a0.\u00a0Isso faz com que haja uma\u00a0diferen\u00e7a de press\u00e3o<\/strong>\u00a0entre as superf\u00edcies do objeto.\u00a0O tamanho e a forma geral do corpo s\u00e3o os fatores mais importantes no\u00a0arrasto do formul\u00e1rio<\/strong>.\u00a0Em geral, corpos com uma se\u00e7\u00e3o transversal geom\u00e9trica maior apresentada ter\u00e3o um arrasto mais alto do que corpos mais finos.<\/p>\n

Como pode ser visto na figura, a for\u00e7a de arrasto surge da diferen\u00e7a entre as press\u00f5es atuando na frente e atr\u00e1s do corpo imerso.\u00a0Para esta for\u00e7a pode ser calculada (para este caso) simplesmente usando a defini\u00e7\u00e3o de press\u00e3o como:<\/p>\n

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

Como a\u00a0perda de<\/a>\u00a0carga \u00e9 aproximadamente proporcional ao quadrado da vaz\u00e3o<\/strong>\u00a0na maioria dos fluxos de engenharia, o\u00a0coeficiente de arrasto total<\/strong>\u00a0pode ser determinado simplesmente adicionando os coeficientes de atrito e press\u00e3o de arrasto:<\/p>\n

\"atrito<\/a><\/p>\n<\/div>\n<\/div>\n

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……………………………………………………………………………………………………………………………….<\/p>\n

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 arrasto de forma conhecido tamb\u00e9m como arrasto de press\u00e3o surge devido \u00e0 forma e tamanho do objeto.\u00a0A for\u00e7a de arrasto surge da diferen\u00e7a entre as press\u00f5es agindo na frente e atr\u00e1s do corpo imerso.\u00a0Engenharia T\u00e9rmica Arrastar formul\u00e1rio – Arrastar press\u00e3o O arrasto de forma\u00a0conhecido tamb\u00e9m como\u00a0arrasto de press\u00e3o\u00a0surge devido \u00e0\u00a0forma\u00a0e\u00a0tamanho\u00a0do objeto.\u00a0O\u00a0arrasto de press\u00e3o\u00a0\u00e9 proporcional … 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 o Arrastar formul\u00e1rio - Arrastar press\u00e3o - Defini\u00e7\u00e3o<\/title>\n<meta name=\"description\" content=\"O arrasto de forma conhecido tamb\u00e9m como arrasto de press\u00e3o surge devido \u00e0 forma e tamanho do objeto. 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