Viscous aspects of flow
Turbomachines: incompressible flow calculation - Modeling

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Viscous aspects of flow


Turbomachines: incompressible flow calculation - Modeling

Authors : Gérard BOIS, Robert ReY, Farid Bakir, Olivier Coutier-Delgosha

Publication date: April 10, 2008, Review date: November 28, 2019 | Lire en français

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4. Viscous aspects of flow

Viscosity plays a vital role in turbomachinery operation, since it is responsible for losses. These losses are usually divided into three categories:

  • Profile losses, linked to the development of viscous zones along the blade chord between the leading and trailing edges, and the resulting development of wakes. The more pronounced the effect of current sheet warping, the greater the shearing effect, which can lead to additional losses in directions normal to the current lines.

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