Question

Exercise 7 Suppose it is your job to make a subsonic, incompressible windtunnel. The test section should be square, \( 2 \times 2 \mathrm{~m} \). The conditions in the test section are given to be standard sea level conditions and a flow speed of \( 50 \mathrm{~m} / \mathrm{s} \). Figure 3: A party balloon (Image courtesy of NASA, CC - BY - NC). A) What should be the mass flow (in \( \mathrm{kg} / \mathrm{s} \) )? B) The flow passes through a circular cross-section with a radius of 2 meter. What is the flow speed in this cross-section (in \( \mathrm{m} / \mathrm{s} \) )?

          Exercise 7
Suppose it is your job to make a subsonic, incompressible windtunnel. The test section should be square, \( 2 \times 2 \mathrm{~m} \). The conditions in the test section are given to be standard sea level conditions and a flow speed of \( 50 \mathrm{~m} / \mathrm{s} \).

Figure 3: A party balloon (Image courtesy of NASA, CC - BY - NC).
A) What should be the mass flow (in \( \mathrm{kg} / \mathrm{s} \) )?
B) The flow passes through a circular cross-section with a radius of 2 meter. What is the flow speed in this cross-section (in \( \mathrm{m} / \mathrm{s} \) )?

Exercise 7
Suppose it is your job to make a subsonic, incompressible windtunnel. The test section should be square, 2 × 2 m. The conditions in the test section are given to be standard sea level conditions and a flow speed of 50 m / s.

Figure 3: A party balloon (Image courtesy of NASA, CC - BY - NC).
A) What should be the mass flow (in kg / s )?
B) The flow passes through a circular cross-section with a radius of 2 meter. What is the flow speed in this cross-section (in m / s )?

Added by Gregg M.

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