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2020 Fall - CFD LAB 4

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2020 Fall - CFD LAB 4

Number of Students

Total 10

Submitted 7

Not Submitted 3

Average 97.14

Standard deviation 3.14

(2)

Comments

• Several students could not calculate drag coefficient for each part of Ahmed Body correctly

• Some of students missed for plotting the figure of ‘Velocity magnitude contour’ and ‘Modified- TKE vs. y-by-h’

• Some of students could not derive the frequency of drag coefficient correctly, so calculate wrong 𝑆𝑡 number

• One student answer that there was no flow separation during the simulation. But that is entirely wrong answer

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 Several of students indicated wrong sign for drag coefficient of Ahmed Body(Front Part

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REPORT OF CFD LAB 4 Number of Students Total 23 Submitted 23 Not Submitted 0

However, since we are projecting the force vector into (1,0,0) vector to get the drag for other parts too, we shouldn’t change the sign of force for that specific part.. Some