polynomial profiles
 

hi all,

can any1 explain me how the coefficients are given in the below link.


http://aerojet.engr.ucdavis.edu/flue...ug/node325.htm


Will be great full, if any1 can repy

hi im soory .have guive mi your tim
 

im same pb
how to calcul A1.A2.A3......
http://jullio.pe.kr/fluent6.1/help/html/ug/node282.htm
im in the big pb thanks
thanks

Presuming you have access to Excel:
1. plot the data (e.g. Cp as a function of temperature)
2. right-click on any data point and 'Add Trendline...'
3. choose Linear or Polynomial Order X depending on how well the curve fits the data on the plot
4. click 'Display Equation on chart' and there you have the coefficients

You can do the same overall procedure in a bunch of softwares like Matlab, Octave, Python, etc.

P.S. Asking the same question 10 times in a bunch of threads is not good forum behavior. Ask your question ONCE on the most recent thread that is related or start a new one.

thanks and im soory
 

thanks and im soory fo the methode of the quetion
bat how to fand the excel data for density fonction T
and a gan thanks

I can't find the data for you :confused:

http://lmgtfy.com/?q=air+density+fun...of+temperature

he
 

thanks :confused:
bat im recherche in the calcul A1.A2..ex

Please I need to clarify:)!!!!!!!
donner moi un exemple svp . et je m'excuse pour voutre tomp
i need you halp

look at post #3, I added a picture that shows everything: http://www.cfd-online.com/Forums/flu...tml#post501994

hi
 

thanks i recherche in thise:)
thanks agan for your tim