Wind Tunnels

Question 1

What conditions are required for scale testing?

Answer 1

Flow similarity and geometric similarity.

Question 2

Describe flow similarity.

Answer 2

Re is constant between full scale and model scale.

Question 3

Describe a correction method.

Answer 3

Need to correct for blockage. Must be less than a 5% change in velocity.

Question 4

Describe a repeatability test procedure.

Answer 4

Zero wind checks to ensure no balance drift.