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QUIZ 14 – Report

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QUIZ 14 – Report

General

Total number of students 41

Attended 40

Missed 1

Make-up 0

Average grade 6.03

Standard deviation of grades 1.77

Grade distribution

Comparison with past years

(2)

Grade history

Attendance history

Comments

• Many students applied wrong boundary conditions:

o For the point on the surface (r = a): they used vr = U, instead of vr = 0.

o For the point at x = 0 and y = ∞: they used vr = U or vθ = 0, instead of vθ = U.

• Many students attempted to find the stream function. It was not needed since the potential function was given in the problem statement.

• Some students did calculation mistakes in deriving the velocity component from the potential function.

• Some students did not solve at all the second part of the problem.

• Very few students almost did not attempt to solve the quiz at all.

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