Exam report n°02

• One student answered friction coefficient only for sub question of (c) and didn’t answer it with Force unit.

 One student couldn’t neglect the convection(Non-linear) term which should be canceled out with the fully developed assumption.  One student used wrong

 Some of students used inappropriate Non-dimensional values when they calculate model scale’s velocity..

 Several students could not transformed the model scale velocity to prototype velocity correctly so they derived wrong answer..

• Some student made wrong assumptions when applying momentum equations (i.e. not assuming v=0, not neglecting gravity for y-momentum). • Some students did not

• Most students had difficulty substituting

• Many student struggled to setup and solve system of equation for the velocity calculation (I suspect this is due to the

• Few students made mistakes when calculating the x and y component of the velocities (e.g. used Vsin θ instead of Vcosθ).