Semispan Wing Model Testing - Issues & Tunnel Corrections

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SUMMARY

This discussion focuses on the challenges associated with testing semispan wing models in wind tunnels, particularly transitioning from 2D airfoil testing to 3D wing tests. Key issues include the interaction between the tunnel wall boundary layer and the wing root, as well as the need for accurate tunnel corrections. Participants recommend consulting Barlow's book on Wind Tunnel Testing for comprehensive guidance on these topics.

PREREQUISITES
  • Understanding of wind tunnel testing principles
  • Familiarity with 2D airfoil testing techniques
  • Knowledge of boundary layer effects in aerodynamics
  • Experience with semispan wing model design
NEXT STEPS
  • Research tunnel wall boundary layer interactions with wing models
  • Study methods for calculating tunnel corrections for 3D models
  • Explore Barlow's book on Wind Tunnel Testing for detailed methodologies
  • Investigate common issues in semispan wing testing through case studies
USEFUL FOR

Aerodynamic engineers, wind tunnel technicians, and researchers involved in experimental aerodynamics and model testing will benefit from this discussion.

RandomGuy88
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Hi, I am wondering if anyone out there has some experience testing semispan wing models in a tunnel. Most of my tunnel experience is 2D testing such as airfoils but I am going to be starting some 3D wing tests soon and I would like to know what sort of issues to expect. For example I have been reading up on the interaction of the tunnel wall boundary layer and the wing root. Are there other potential issues I should worry about that are typical of semispan models? What about tunnel corrections? If anyone has any suggestions on references that would be great.

Thanks!
 
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Read Barlows book on Wind Tunnel Testing. It goes over it in detail.
 

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