Different result between Matlab and mobile calculator. (Plz helpTT)

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Kang san Lee 2020-10-16

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评论： Rik 2020-10-17

This function is designed to calculate a "Loss Factor" of Elbow in the pipe equipment consisted of Venturi meter, Orifice meter and Rotameter.

and the input data is like pictures below.

and the output from matlab is [-0.0720, 1.3425, 0.7478].

But it was a quite weird conclusion for me so I recalculated it by mobile calculator.

And my calculator made a result of -1.1168 for the first element of the matrix.

-0.0720 and -1.1168 are quite different from each other but I couldn't find what is the problem.

Though there was some strange results above this one, it is too large number so I can't tolerate it.

Plz take a look for my code and find some errors for me.TT

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Durganshu 2020-10-16

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编辑：Durganshu 2020-10-16

Clearly, you have misplaced any bracket or operator while solving the problem in the calculator. Look for them.

I t could even be possible that you have written the equation in a wrong way. Please recheck the hand equations and teh equations written in the script.

The result would be same if there are no misplacements.

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Durganshu 2020-10-17

编辑：Durganshu 2020-10-17

Your output values seem to be Q1, Q2, Q3, K_Ven, K_Dif, K_Ori, K_Elb. Are you getting all these values incorrect?

Rik 2020-10-17

Just a quick note: if you Mark an answer as accepted, that means your issue is solved, which will decrease the number of people looking into your question.

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