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Showing results 1 to 6 of 6 Search took 0.00 seconds. Search: Posts Made By: kaya

Forum: Main CFD Forum April 29, 2016, 09:05

Replies: 14 resolution characteristics of FD schemes Views: 1,100 Posted By kaya Yes I looked at that log damping function that... Yes I looked at that log damping function that was not very active above y+ 150, in an abl simulation your first grid point is like around y+700.. I 'll change the static version to dynamic model...

Forum: Main CFD Forum April 29, 2016, 08:46

Replies: 14 resolution characteristics of FD schemes Views: 1,100 Posted By kaya I see, this makes sense for channel flow... I see, this makes sense for channel flow simulations. I am in the wind energy field and it is not possible to resolve the wall on ground-normal direction but then I can t understand how people define...

Forum: Main CFD Forum April 29, 2016, 05:59

Replies: 14 resolution characteristics of FD schemes Views: 1,100 Posted By kaya Then when you use dealiased fourier series on... Then when you use dealiased fourier series on 2axis and a central finite difference on the other, how would you define the characteristic length scale for say smagorinsky model? Now it doesn t make...

Forum: Main CFD Forum April 28, 2016, 11:53

Replies: 14 resolution characteristics of FD schemes Views: 1,100 Posted By kaya Thanks. There are many similar figures in Lele... Thanks. There are many similar figures in Lele 1992, this was just my own curiosity Thanks for all the comments.

Forum: Main CFD Forum April 27, 2016, 16:28

Replies: 14 resolution characteristics of FD schemes Views: 1,100 Posted By kaya but you'd expect [f(x+dx/2)-f(x-dx/2)]/(dx) to... but you'd expect [f(x+dx/2)-f(x-dx/2)]/(dx) to give a higher resolution than [f(x+dx)-f(x-dx)] /(2*dx) right? I am also not sure if resolution is the right word there but thats just how I tihink...

Forum: Main CFD Forum April 27, 2016, 13:23

Replies: 14 resolution characteristics of FD schemes Views: 1,100 Posted By kaya resolution characteristics of FD schemes I am looking at 2nd and 4th order central finite difference schemes and trying to understand how good they can resolve the first derivative for each given wave number. My routine is I make a sine...

Showing results 1 to 6 of 6

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