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Що таке відцентровий насос? Як це працює?

У відцентрових насосів як з усіх turbomachines, є основним елементом називається робоче колесо обертається кутової швидкості навколо фіксованої осі. Найпростіша форма Центробіжне колесо виходить централізовано (радіальну) крилами між двох паралельних дисків. Крім того, один диск звучить потовщення навколо осі і підключається до метрів. Як заявив на наступному малюнку, рідини частинок всередині робоче колесо обертається навколо вісі зі швидкістю U = rωwith колесо, а з іншого боку, рухається відповідно до колеса з W-швидкість і листя. U отримує ім'я відносної швидкості екологічної швидкості w.

 

Коли рідиною робоче колесо починає обертатися навколо осі, воно починаєз'являтися з поверхні рідини B під дією відцентрових сил. Таким чином, рідинавсмоктується з поверхні E роздруковані з поверхні b.

 

Потік бачив обертається спостерігач з колесом відрізнятиметься від потоку спостерігача в нерухомо середовищі. Швидкість частинка рухається в межах потоку, за стаціонарний спостерігача в середовищі нерухомо, має абсолютну швидкість, швидкість відносної швидкості колесо бачить в точці, де спостерігача спінінг з колесом.

 

Абсолютна швидкість є векторних сума C, W, і ви прискорює. Інтенсивність і напрямку W і ви швидкостях вони утворюють прямокутні краю. Цей поріг представляє абсолютної швидкості прямокутника діагоналі. Країв прямокутника позначення відносної швидкості W та ambient швидкості ви, в залежності від інтенсивності і напрямок насильства. Таким чином, ці три швидкості, що утворюють трикутники. В обчисленнях нескінченне число дуже тонка крила діяли на думці. У цьому випадку, це прийнятно, що потік пряжі повністю контролюються, і що канал одномірне. У разі вводу не має впливу початок крила є дотичною до відносної швидкості вводу. З іншого виразу швидкість W1, що робить β1 кут з камерою споживання насосів, є в тому ж напрямку, що й крило профілю. Аналогічним чином, W2 швидкості, що робить β2 кут із закінченням крило виходу, є в одному напрямку. Напрямок вхідних залежить від напрямку першим елементом крило ввступу та орієнтації швидкість запису запитуються запис буде здійснюватися безспотворень і, таким чином, запобігання втрат. У насосів лезо закінчується під кутом β2 W2 відносної швидкості.

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