As illustrated in Fig. P6.50, a tornado can be
Chapter 6, Problem 6.50(choose chapter or problem)
As illustrated in Fig. P6.50, a tornado can be approximated by a free vortex of strength \(\Gamma\) for \(r > R_c\), where \(R_c\) is the radius of the core. Velocity measurements at points A and B indicate that \(V_A = 125\) ft/s and \(V_B = 60\) ft/s. Determine the distance from point A to the center of the tornado. Why can the free vortex model not be used to approximate the tornado throughout the flow field \((r \geq 0)\)?
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