Log in

View Full Version : how to solve a one dimension thermal diffusion equation


subtex
02-12-2012, 14:51
hi

i am new to these forums and new to labview.

please see if you can help me with this -

i am taking 8 sets of data - over 2 minutes (120 data points - sampled at one second apart. The 8 data points are along 8 equidistant points on a rod and the data itself is the temparature, recorded as a voltage (v) by 8 thermistors

The data satisfies the following equation -

d^2v/dx^2 = k d^2v/dt^2

that is the one dimensional laplacian of the voltage = k times the 2nd time derivative of the voltage

how to solve the equation in labview !!??

DonRotolo
09-12-2012, 21:37
I am hoping that you have come to realize that THIS forum (ChiefDelphi) is focused on the various FIRST robotics competitions (http://www.usfirst.org), and is not a general LabView support forum.

LabView does have its own forums (http://forums.ni.com/t5/LabVIEW/bd-p/170), just perfect for the kind of question you have asked. Perhaps you may be more successful there.

(For what it is worth, I failed thermodynamics in college. But I do know that the heat can be modeled as voltages in a resistor network, and that doing calculus in LabView is possible using the various "Calculus VIs". All I had back then was a 4-function calculator...)