Consequences of Stalled Vortex Generators on Diffuser Separation

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SUMMARY

The discussion centers on the impact of stalled vortex generators on diffuser separation. When vortex generators are set at an angle of attack beyond the stall point, they can stall, leading to flow distortion that negatively affects pressure recovery. Research indicates that this phenomenon can significantly hinder the performance of diffusers. Key resources for further exploration include ASME's Journal of Turbomachinery and AIAA's journal publications.

PREREQUISITES
  • Understanding of vortex generator functionality and design
  • Knowledge of fluid dynamics principles, particularly flow separation
  • Familiarity with pressure recovery concepts in turbomachinery
  • Access to academic journals such as ASME and AIAA for research insights
NEXT STEPS
  • Research the effects of vortex generator stall on flow characteristics
  • Study the principles of diffuser design and optimization
  • Examine case studies from ASME's Journal of Turbomachinery
  • Explore AIAA's journal articles on vortex generator applications
USEFUL FOR

Aerospace engineers, mechanical engineers, and researchers focused on turbomachinery performance and flow optimization will benefit from this discussion.

JD88
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If I am using vortex generators in an attempt to delay diffuser separation what would the consequence be of the vortex generators stalling? For instance if I set them at and angle of attack to the flow that was past the stall point.
 
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I would imagine that the "stalling" of the generators would create distortion which would kill your pressure recovery. There has been quite a bit of research in this area. Have you done any looking into journal articles or papers? ASME's journal of turbomachinery is a very good resource as is AIAA's journal sources.
 

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