How well does the theoretical model predict the measured force for the symmetric and asymmetric impact surfaces?

Question

Engineering

Noe Navarro

8 June, 16:24

How well does the theoretical model predict the measured force for the symmetric and asymmetric impact surfaces?

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Answers (1)

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Hallie Burch · Answer 1

1) First step would be determining the measured force through your experiment for the Reaction force of the both the surfaces on the jet of fluid stream. The value would be R_actual.

2) Second step is to compute the Reaction force by the theoretical model which takes an assumption of no kinetic energy loss from a jet of fluid stream impinging on to the surfaces i. e the velocity before and after impact is the same. This value would be R_theoratical.

3) Step Three would be to compare the actual and theoretical values of Reaction forces exerted by the surfaces by the following formula:

% Difference = [ (R_actual - R_theoratical) / R_actual ] * 100

4) The standard followed is that a theoretical model must predicts within 10% uncertainty about the actual value obtained from experiment.

5) If the difference is greater than 10% it means that the assumption of no Kinetic Energy Losses was not feasible and should be included in the model for accuracy.