|March 26, 2014, 13:22||
Sai Prudhvi Nagireddy
Join Date: Mar 2014
Posts: 3Rep Power: 4
I had this doubt in the stretched grid topic.
we have the two planes namely
a) physical plane
b) computational plane
horizontal spacing is same in both the planes ie. x=episilon
but the vertical spacing in physical plane is a variable, it increases.
according to the j.d.andreson book n=ln(y+1)
where n is the uniform vertical spacing in the computational plane
when we solve the above equation we get
del(y)=e^n * del(n)
consider an example where the values for y are 1,3,6,10,15
with reference to these values of 'y' the values of n thus obtained doesn't satisfy the relation that del(n) is const. ie. the grid is equally spaced.
can anyone explain me where im going wrong..!
|adaptive mesh, stretched grid|
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