# Scalar equation and a table from a file

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 April 20, 2011, 09:01 Scalar equation and a table from a file #1 Member     Alex Join Date: Apr 2010 Posts: 48 Rep Power: 9 Hello, I have to solve the following problem: I have a scalar transport equation of a variable Y with a source term called Y'. Imagine that I have values of Y in a discrete way, included in the range [0:1] and Y' values different and dependent on the Y ones (for each Y I have a Y'). Let's pretend that I want to evaluate the values of Y' from a value of Y not included in the discrete table (for instance Y = 0.005) simply making a linear interpolation. Y - Y' 0 - 10 0,1 - 12 0,2 - 56 0,3 - 78 0,4 - 98 0,5 - 99 0,6 - 56 0,7 - 21 0,8 - 12 0,9 - 11 1,0 - 5 the first question is: how to upload the table in the memory of the scalar equation I have? second: which tools are better to be used for linear interpolation? regards, alex

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