{"id":41908,"date":"2019-09-30T17:47:24","date_gmt":"2019-09-30T16:47:24","guid":{"rendered":"https:\/\/www.thermal-engineering.org\/que-es-velocity-head-definicion\/"},"modified":"2020-01-20T20:49:35","modified_gmt":"2020-01-20T19:49:35","slug":"que-es-velocity-head-definicion","status":"publish","type":"post","link":"https:\/\/www.thermal-engineering.org\/es\/que-es-velocity-head-definicion\/","title":{"rendered":"\u00bfQu\u00e9 es Velocity Head? Definici\u00f3n"},"content":{"rendered":"<div class=\"su-quote su-quote-style-default\">\n<div class=\"su-quote-inner su-clearfix\">Potencial de velocidad &#8211; Cabezal de velocidad: la velocidad, tambi\u00e9n conocida como cabezal cin\u00e9tico, representa la energ\u00eda cin\u00e9tica del fluido. Ingenieria termal<\/div>\n<\/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>Cabezal de velocidad<\/span><\/h2>\n<p><span>En general,\u00a0\u00a0<\/span><strong><span>la<\/span><\/strong><span>\u00a0altura\u00a0<strong>hidr\u00e1ulica<\/strong>\u00a0, o\u00a0altura\u00a0total, es una medida del\u00a0<\/span><strong><span>potencial<\/span><\/strong><span>\u00a0del fluido en el punto de medici\u00f3n.\u00a0Se puede usar para determinar un gradiente hidr\u00e1ulico entre dos o m\u00e1s puntos.<\/span><br \/>\n<a href=\"https:\/\/thermal-engineering.org\/wp-content\/uploads\/2019\/05\/Bernoulli-Theorem-Equation.png\"><img loading=\"lazy\" class=\"size-full wp-image-14235 aligncenter lazy-loaded\" src=\"https:\/\/thermal-engineering.org\/wp-content\/uploads\/2019\/05\/Bernoulli-Theorem-Equation.png\" alt=\"Teorema de Bernoulli - Ecuaci\u00f3n\" width=\"346\" height=\"66\" data-lazy-type=\"image\" data-src=\"https:\/\/thermal-engineering.org\/wp-content\/uploads\/2019\/05\/Bernoulli-Theorem-Equation.png\" \/><\/a><\/p>\n<p><strong><span>En din\u00e1mica de fluidos<\/span><\/strong><span>\u00a0, la cabeza es un concepto que relaciona la energ\u00eda en un fluido incompresible con la\u00a0<\/span><strong><span>altura de una columna est\u00e1tica equivalente<\/span><\/strong><span>\u00a0de ese fluido.\u00a0Las unidades para todas las diferentes formas de energ\u00eda en la\u00a0<\/span><a title=\"La ecuaci\u00f3n de Bernoulli - Principio de Bernoulli\" href=\"https:\/\/www.thermal-engineering.org\/es\/que-es-la-ecuacion-de-bernoulli-principio-de-bernoulli-definicion\/\"><span>ecuaci\u00f3n de Bernoulli<\/span><\/a><span>\u00a0se pueden medir tambi\u00e9n en\u00a0<\/span><strong><span>unidades de distancia<\/span><\/strong><span>\u00a0y, por lo tanto, estos t\u00e9rminos a veces se denominan &#8220;cabezas&#8221; (cabeza de presi\u00f3n, cabeza de velocidad y cabeza de elevaci\u00f3n).\u00a0La cabeza tambi\u00e9n se define para bombas.\u00a0Esta cabeza generalmente se conoce como la\u00a0<\/span><strong><span>cabeza est\u00e1tica<\/span><\/strong><span>\u00a0y representa la\u00a0<\/span><strong><span>altura m\u00e1xima<\/span><\/strong><span>\u00a0(presi\u00f3n) que puede entregar.\u00a0Por lo tanto, las caracter\u00edsticas de todas las bombas se pueden leer generalmente de su\u00a0<\/span><strong><span>curva QH<\/span><\/strong><span>\u00a0(caudal &#8211; altura).<\/span><\/p>\n<p><span>Hay cuatro tipos de potencial (cabeza):<\/span><\/p>\n<ul>\n<li><strong><span>Potencial de presi\u00f3n &#8211; Cabezal de presi\u00f3n:<\/span><\/strong><span>\u00a0el cabezal de presi\u00f3n representa la energ\u00eda de flujo de una columna de fluido cuyo peso es equivalente a la presi\u00f3n del fluido.<\/span><strong><a href=\"https:\/\/thermal-engineering.org\/wp-content\/uploads\/2019\/05\/Pressure-Head.png\"><img loading=\"lazy\" class=\"aligncenter size-medium wp-image-14309 lazy-loaded\" src=\"https:\/\/thermal-engineering.org\/wp-content\/uploads\/2019\/05\/Pressure-Head-300x62.png\" alt=\"Cabeza de presi\u00f3n\" width=\"300\" height=\"62\" data-lazy-type=\"image\" data-src=\"https:\/\/thermal-engineering.org\/wp-content\/uploads\/2019\/05\/Pressure-Head-300x62.png\" \/><\/a><\/strong><span>\u03c1\u00a0<\/span><sub><span>w<\/span><\/sub><span>\u00a0: densidad del agua que se supone que es independiente de la presi\u00f3n<\/span><\/li>\n<li><strong><span>Potencial de elevaci\u00f3n &#8211; Altura de elevaci\u00f3n:<\/span><\/strong><span>\u00a0la altura de elevaci\u00f3n representa la energ\u00eda potencial de un fluido debido a su elevaci\u00f3n por encima de un nivel de referencia.<\/span><a href=\"https:\/\/thermal-engineering.org\/wp-content\/uploads\/2019\/05\/Elevation-Head.png\"><img loading=\"lazy\" class=\"aligncenter size-full wp-image-14308 lazy-loaded\" src=\"https:\/\/thermal-engineering.org\/wp-content\/uploads\/2019\/05\/Elevation-Head.png\" alt=\"Cabeza de elevaci\u00f3n\" width=\"296\" height=\"80\" data-lazy-type=\"image\" data-src=\"https:\/\/thermal-engineering.org\/wp-content\/uploads\/2019\/05\/Elevation-Head.png\" \/><\/a><\/li>\n<li><strong><span>Potencial cin\u00e9tico &#8211; Cabeza cin\u00e9tica:<\/span><\/strong><span>\u00a0la cabeza cin\u00e9tica representa la energ\u00eda cin\u00e9tica del fluido.\u00a0Es la altura en pies que un fluido que fluye se elevar\u00eda en una columna si toda su energ\u00eda cin\u00e9tica se convirtiera en energ\u00eda potencial.<\/span><a href=\"https:\/\/thermal-engineering.org\/wp-content\/uploads\/2019\/05\/Kinetic-Head.png\"><img loading=\"lazy\" class=\"aligncenter size-medium wp-image-14307 lazy-loaded\" src=\"https:\/\/thermal-engineering.org\/wp-content\/uploads\/2019\/05\/Kinetic-Head-300x47.png\" alt=\"Cabeza cin\u00e9tica\" width=\"300\" height=\"47\" data-lazy-type=\"image\" data-src=\"https:\/\/thermal-engineering.org\/wp-content\/uploads\/2019\/05\/Kinetic-Head-300x47.png\" \/><\/a><\/li>\n<\/ul>\n<p><span>La suma de la cabeza de elevaci\u00f3n, la cabeza cin\u00e9tica y la cabeza de presi\u00f3n de un fluido se denomina\u00a0<\/span><strong><span>cabeza total<\/span><\/strong><span>\u00a0.\u00a0Por lo tanto, la ecuaci\u00f3n de Bernoulli establece que la altura total del fluido es constante.<\/span><\/p>\n<p><a href=\"https:\/\/thermal-engineering.org\/wp-content\/uploads\/2019\/05\/Total-Hydraulic-Head.png\"><img loading=\"lazy\" class=\"aligncenter size-full wp-image-14311 lazy-loaded\" src=\"https:\/\/thermal-engineering.org\/wp-content\/uploads\/2019\/05\/Total-Hydraulic-Head.png\" alt=\"Cabezal Hidr\u00e1ulico Total\" width=\"606\" height=\"370\" data-lazy-type=\"image\" data-src=\"https:\/\/thermal-engineering.org\/wp-content\/uploads\/2019\/05\/Total-Hydraulic-Head.png\" \/><\/a><\/p>\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<figure id=\"attachment_14299\" class=\"wp-caption aligncenter\" aria-describedby=\"caption-attachment-14299\"><a href=\"https:\/\/thermal-engineering.org\/wp-content\/uploads\/2019\/05\/Hydraulic-Head-Q-H.png\"><img loading=\"lazy\" class=\"size-medium wp-image-14299 lazy-loaded\" src=\"https:\/\/thermal-engineering.org\/wp-content\/uploads\/2019\/05\/Hydraulic-Head-Q-H-300x207.png\" alt=\"Diagrama caracter\u00edstico de QH de la bomba centr\u00edfuga y de la tuber\u00eda\" width=\"300\" height=\"207\" data-lazy-type=\"image\" data-src=\"https:\/\/thermal-engineering.org\/wp-content\/uploads\/2019\/05\/Hydraulic-Head-Q-H-300x207.png\" \/><\/a><figcaption id=\"caption-attachment-14299\" class=\"wp-caption-text\"><span>Diagrama caracter\u00edstico de QH de la bomba centr\u00edfuga y de la tuber\u00eda<\/span><\/figcaption><\/figure>\n<figure id=\"attachment_14303\" class=\"wp-caption aligncenter\" aria-describedby=\"caption-attachment-14303\"><a href=\"https:\/\/thermal-engineering.org\/wp-content\/uploads\/2019\/05\/Hydraulic-Head-Total-Head-Line-min.png\"><img loading=\"lazy\" class=\"size-medium wp-image-14303 lazy-loaded\" src=\"https:\/\/thermal-engineering.org\/wp-content\/uploads\/2019\/05\/Hydraulic-Head-Total-Head-Line-min-300x229.png\" alt=\"Cabezal hidr\u00e1ulico - L\u00ednea de cabezal total\" width=\"300\" height=\"229\" data-lazy-type=\"image\" data-src=\"https:\/\/thermal-engineering.org\/wp-content\/uploads\/2019\/05\/Hydraulic-Head-Total-Head-Line-min-300x229.png\" \/><\/a><figcaption id=\"caption-attachment-14303\" class=\"wp-caption-text\"><span>Niveles de piez\u00f3metro cuando fluye fluido.\u00a0En esta figura, los niveles se han reducido en una cantidad igual a la altura de la velocidad.<\/span><\/figcaption><\/figure>\n<figure id=\"attachment_14304\" class=\"wp-caption aligncenter\" aria-describedby=\"caption-attachment-14304\"><a href=\"https:\/\/thermal-engineering.org\/wp-content\/uploads\/2019\/05\/Hydraulic-Head-Velocity-Head-min.png\"><img loading=\"lazy\" class=\"size-medium wp-image-14304 lazy-loaded\" src=\"https:\/\/thermal-engineering.org\/wp-content\/uploads\/2019\/05\/Hydraulic-Head-Velocity-Head-min-300x229.png\" alt=\"Cabezal hidr\u00e1ulico - Cabezal de velocidad\" width=\"300\" height=\"229\" data-lazy-type=\"image\" data-src=\"https:\/\/thermal-engineering.org\/wp-content\/uploads\/2019\/05\/Hydraulic-Head-Velocity-Head-min-300x229.png\" \/><\/a><figcaption id=\"caption-attachment-14304\" class=\"wp-caption-text\"><span>Niveles de piez\u00f3metro y cabezales de velocidad con fluido que fluye en tuber\u00edas de di\u00e1metro variable.\u00a0El cabezal de velocidad en cada punto ahora es diferente.\u00a0Esto se debe a que la velocidad es diferente en cada punto.<\/span><\/figcaption><\/figure>\n<figure id=\"attachment_14305\" class=\"wp-caption aligncenter\" aria-describedby=\"caption-attachment-14305\"><a href=\"https:\/\/thermal-engineering.org\/wp-content\/uploads\/2019\/05\/Hydraulic-Head-Hydraulic-Grade-Line-min.png\"><img loading=\"lazy\" class=\"size-medium wp-image-14305 lazy-loaded\" src=\"https:\/\/thermal-engineering.org\/wp-content\/uploads\/2019\/05\/Hydraulic-Head-Hydraulic-Grade-Line-min-300x230.png\" alt=\"Cabezal hidr\u00e1ulico - L\u00ednea de grado hidr\u00e1ulico\" width=\"300\" height=\"230\" data-lazy-type=\"image\" data-src=\"https:\/\/thermal-engineering.org\/wp-content\/uploads\/2019\/05\/Hydraulic-Head-Hydraulic-Grade-Line-min-300x230.png\" \/><\/a><figcaption id=\"caption-attachment-14305\" class=\"wp-caption-text\"><span>L\u00ednea de grado hidr\u00e1ulico y l\u00edneas de cabeza total para una tuber\u00eda de di\u00e1metro constante con fricci\u00f3n.\u00a0En una tuber\u00eda real hay p\u00e9rdidas de energ\u00eda debido a la fricci\u00f3n, que deben tenerse en cuenta, ya que pueden ser muy significativas.<\/span><\/figcaption><\/figure>\n<\/div>\n<\/div>\n<div class=\"lgc-column lgc-grid-parent lgc-grid-100 lgc-tablet-grid-100 lgc-mobile-grid-100 lgc-equal-heights  lgc-first lgc-last\">\n<div class=\"inside-grid-column\">\n<div class=\"su-accordion\">\n<div class=\"su-spoiler su-spoiler-style-default su-spoiler-icon-plus su-spoiler-closed\"><\/div>\n<\/div>\n<div class=\"su-divider su-divider-style-dotted\"><\/div>\n<p><span>Considere una tuber\u00eda que contenga un fluido ideal.\u00a0Si esta tuber\u00eda experimenta una expansi\u00f3n gradual del di\u00e1metro, la\u00a0<\/span><a title=\"Ecuaci\u00f3n de continuidad\" href=\"https:\/\/www.thermal-engineering.org\/es\/que-es-la-ecuacion-de-continuidad-definicion\/\"><strong><span>ecuaci\u00f3n de continuidad<\/span><\/strong><\/a><span>\u00a0nos dice que a medida que\u00a0<\/span><strong><span>aumenta el di\u00e1metro de<\/span><\/strong><span>\u00a0la\u00a0<strong>tuber\u00eda<\/strong>\u00a0, la\u00a0<\/span><strong><span>velocidad<\/span><\/strong><span>\u00a0del\u00a0<strong>flujo debe disminuir<\/strong>\u00a0para mantener la misma velocidad de flujo m\u00e1sico.\u00a0Dado que la velocidad de salida es menor que la velocidad de entrada, la altura cin\u00e9tica del flujo debe disminuir desde la entrada hasta la salida.\u00a0Si no hay cambios en la altura de elevaci\u00f3n (la tuber\u00eda queda horizontal), la disminuci\u00f3n de la altura cin\u00e9tica debe compensarse con un aumento de la altura de presi\u00f3n.<\/span><\/div>\n<\/div>\n<\/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 art\u00edculo se basa en la traducci\u00f3n autom\u00e1tica del art\u00edculo original en ingl\u00e9s. Para m\u00e1s informaci\u00f3n vea el art\u00edculo en ingl\u00e9s. Puedes ayudarnos. Si desea corregir la traducci\u00f3n, env\u00edela a: translations@nuclear-power.com o complete el formulario de traducci\u00f3n en l\u00ednea. Agradecemos su ayuda, actualizaremos la traducci\u00f3n lo antes posible. Gracias.<\/p>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Potencial de velocidad &#8211; Cabezal de velocidad: la velocidad, tambi\u00e9n conocida como cabezal cin\u00e9tico, representa la energ\u00eda cin\u00e9tica del fluido. Ingenieria termal Cabezal de velocidad En general,\u00a0\u00a0la\u00a0altura\u00a0hidr\u00e1ulica\u00a0, o\u00a0altura\u00a0total, es una medida del\u00a0potencial\u00a0del fluido en el punto de medici\u00f3n.\u00a0Se puede usar para determinar un gradiente hidr\u00e1ulico entre dos o m\u00e1s puntos. En din\u00e1mica de fluidos\u00a0, la &#8230; <a title=\"\u00bfQu\u00e9 es Velocity Head? Definici\u00f3n\" class=\"read-more\" href=\"https:\/\/www.thermal-engineering.org\/es\/que-es-velocity-head-definicion\/\" aria-label=\"M\u00e1s en \u00bfQu\u00e9 es Velocity Head? Definici\u00f3n\">Leer m\u00e1s<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[16],"tags":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v15.4 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>\u00bfQu\u00e9 es Velocity Head? Definici\u00f3n<\/title>\n<meta name=\"description\" content=\"Potencial de velocidad - Cabezal de velocidad: la velocidad, tambi\u00e9n conocida como cabezal cin\u00e9tico, representa la energ\u00eda cin\u00e9tica del fluido. 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