Page 283 - Aerodynamics for Engineering Students
P. 283
266 Aerodynamics for Engineering Students
Fig. 5.42 Vortices above a delta wing: The symmetrical pair of vortices over a delta wing are made visible
by the use of electrolysis in water flow. The wing is made of thin plate and has a semi-vertex angle of Io".
The angle of attack is 35" and the Reynolds number is 3000 based on chord. The flow direction is from top
to bottom. Vortex breakdown occurs at about 0.7 maximum chord. See also Fig. 5.40 on page 264. (The
photograph was taken by J.-L. Solignac at ONERA, France.)
