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Posted:
1 decade ago
20 janv. 2011, 05:27 UTC−5
forget your T(x) plot ... create a (total normal heat flux)/(Cp*rho) versus x plot, integrate over desired range ox x, divide by the length of the range of x. The obtained value should be the average "Temperatureflux" [K/s/m^2]!?!?
forget your T(x) plot ... create a (total normal heat flux)/(Cp*rho) versus x plot, integrate over desired range ox x, divide by the length of the range of x. The obtained value should be the average "Temperatureflux" [K/s/m^2]!?!?
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Posted:
1 decade ago
20 janv. 2011, 06:32 UTC−5
hmm...maybe I didn't explain properly what is problem. It's no t temperature. On Y axis is flux density in [T]-tesla, and on X axis is [m]-meter. I don't know what is Cp and rho in your explanation. I'm not very familiar with comsol:/ Could you explain me step by step what to do? I mean, what function I have to use and how? Currently I've beautiful graph similar to sinusoid but I what know what is mean value. it's ac/dc module.thx.
hmm...maybe I didn't explain properly what is problem. It's no t temperature. On Y axis is flux density in [T]-tesla, and on X axis is [m]-meter. I don't know what is Cp and rho in your explanation. I'm not very familiar with comsol:/ Could you explain me step by step what to do? I mean, what function I have to use and how? Currently I've beautiful graph similar to sinusoid but I what know what is mean value. it's ac/dc module.thx.
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Posted:
1 decade ago
20 janv. 2011, 07:03 UTC−5
Forget my post :)
I just thought you are meant T for "Temperature". Yes, T as a unit is Tesla ... :)
btw: Cp ist the heat capacity at constant pressure and rho is the density.
But: to get an arithmetic mean value: integrate the varying value, then divide by the length of the integration range.
Forget my post :)
I just thought you are meant T for "Temperature". Yes, T as a unit is Tesla ... :)
btw: Cp ist the heat capacity at constant pressure and rho is the density.
But: to get an arithmetic mean value: integrate the varying value, then divide by the length of the integration range.
Ivar KJELBERG
COMSOL Multiphysics(r) fan, retired, former "Senior Expert" at CSEM SA (CH)
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Posted:
1 decade ago
20 janv. 2011, 09:03 UTC−5
Hi
From V4 off you have the "Definition - Average operator", that integrates a variable over a length, respective surface or volume and then divide by the total length, respective area or volume to extract the numerical average, all pre-cooked for you ;)
--
Good luck
Ivar
Hi
From V4 off you have the "Definition - Average operator", that integrates a variable over a length, respective surface or volume and then divide by the total length, respective area or volume to extract the numerical average, all pre-cooked for you ;)
--
Good luck
Ivar
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Posted:
1 decade ago
20 janv. 2011, 09:22 UTC−5
yes! thanks..one more question-how to put line with my mean value to the plot I've created?. I know only how to insert a value to the axis( plot> extra y) but I would like to lay eyes on it.
yes! thanks..one more question-how to put line with my mean value to the plot I've created?. I know only how to insert a value to the axis( plot> extra y) but I would like to lay eyes on it.
Ivar KJELBERG
COMSOL Multiphysics(r) fan, retired, former "Senior Expert" at CSEM SA (CH)
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Posted:
1 decade ago
20 janv. 2011, 09:46 UTC−5
Hi
in v4 make a "constant" function, and add a table value from a global derivation and plot in ontop of your existing plot. slightly complicated for a straigh line but "logic" once you have done it. And then you can adapt your function to something more complex than a straight line
Another way plot the deviation from the avrage, by subtracting the average value to the plot variable
--
Good luck
Ivar
Hi
in v4 make a "constant" function, and add a table value from a global derivation and plot in ontop of your existing plot. slightly complicated for a straigh line but "logic" once you have done it. And then you can adapt your function to something more complex than a straight line
Another way plot the deviation from the avrage, by subtracting the average value to the plot variable
--
Good luck
Ivar
