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Unexpected unit of input. :Function- exp
Posted 2019年2月19日 GMT+1 14:52General, Heat Transfer, Parameters, Variables, & FunctionsVersion 5.42 Replies
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I am trying to add an equatiom ii definition node under variable section. It turns yellow showing error message as: **Unexpected unit of input - Function: exp***
Why it is so? What is the mistake in input, can anyone tell? Screenshot attached for reference. Please help.
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Hi,
The exponential functionexpexpects a dimensionless input. I'm not sure whatTis, but it might be a temperature, which makes the input to the function dimensionally inconsistent. If the numerator is a temperature, enter it as9459[K], or else you can "dedimensionalize" the denominator as, for example,T[1/K].
Best regards, Magnus Ringh, COMSOL
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Yes, T is temperature. Thanks this worked. This equation is antonie equation. Is there any unit for these constant a, b in antonie eqn to make this equation dimensionally consisitent? as these equation solves for pressure.