अक्षीय संपीडक में प्रवाह गुणांक को किस रुप में परिभाषित किया जाता है? (प्रवाह का अक्षीय वेग = vf, परिधि पर ब्लेड का वेग = u)

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  1. \(\frac{{{v_f}}}{u}\)
  2. \(\frac{u}{{{v_f}}}\)
  3. \(\frac{{{v_f} + u}}{u}\)
  4. \(\frac{{{u^2}}}{{{v_f}}}\)

Answer (Detailed Solution Below)

Option 1 : \(\frac{{{v_f}}}{u}\)

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स्पष्टीकरण:

प्रवाह गुणांक (ϕ ) – अक्षीय प्रवाह संपीडक के प्रवाह गुणांक को ब्लेड के अग्र पर द्रव्यमान प्रवाह दर और द्रव्यमान प्रवाह दर के अनुपात के रूप में परिभाषित किया जाता है।

F1 Ashik Madhu 14.08.20 D21          F1 Ashik Madhu 14.08.20 D22

\(\phi = \frac{{Mass~flow~rate~through~compressor}}{{Mass~flow~rate~at~the~tip~of~blade}} = \frac{m}{{{m_{tip}}}}\)

\(\phi = \frac{{{V_f}}}{{{V_f}\left( {\tan {\alpha _1} + \tan {\beta _1}} \right)}} = \frac{{{V_f}}}{U}\)

α= इनलेट पर निरपेक्ष वेग V1 का कोण

β1 = ब्लेड इनलेट कोण

U = ब्लेड वेग

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