Q. In the velocity diagrams for Francis turbine, which of the following velocity directions is along the blade curvature?

  • (A) vr1
  • (B) vw1
  • (C) v1
  • (D) u1
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✅ Correct Answer: (A) vr1
Explanation: vr1 is the relative velocity of the water flow as seen from the blade. thus, relative velocity is along the direction of the curvature of the blade.

Published by Mr. Dubey ⭐ 110.47K Points at 19-Sep-2023 08:23 pm in Fluid Mechanics and Machinery

Explanation by: Mr. Dubey
vr1 is the relative velocity of the water flow as seen from the blade. thus, relative velocity is along the direction of the curvature of the blade.

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