Boundary Condition from internal observation

schwam · October 21, 2015, 06:43

Hey all,

is it somehow possible to derive boundary conditions from an internal observation within the mesh in OF?

just to specify my needs: i'm using a costom openform (2.2.) solver based on pimplFoam to derive wind-filds in complex alpine terrain to calculate snow drift.

now i want to veryfiy this model for one specific snowdirft event. i have some meteorological measurements of winddirection and speed and need a windfield which fits to this observations.

at the time i am using estimated groovyBC.

regards
schwam

nimasam · October 21, 2015, 11:13

i guess you want to map the whole internal domain , not just BCs, maybe manipulatedField in swak4Foam helps

schwam · October 21, 2015, 11:52

I dont know what you exactly mean with "map the hole domain".

I want boundary conditions which result in specific wind-conditions at a certain point within my iternal mesh (where my meterological station(s) is/are located).

At the time i only extrapolate the wind conditions from my meteorology-stations to my boundary condition but since i have a complex high mounain terrain the wind produced by these conditions does not fit since the mountain ridges defelct the wind.

October 21, 2015, 06:43	Boundary Condition from internal observation	#1
schwam New Member Join Date: Apr 2014 Posts: 8 Rep Power: 12	Hey all, is it somehow possible to derive boundary conditions from an internal observation within the mesh in OF? just to specify my needs: i'm using a costom openform (2.2.) solver based on pimplFoam to derive wind-filds in complex alpine terrain to calculate snow drift. now i want to veryfiy this model for one specific snowdirft event. i have some meteorological measurements of winddirection and speed and need a windfield which fits to this observations. at the time i am using estimated groovyBC. regards schwam

October 21, 2015, 11:13		#2
nimasam Senior Member Nima Samkhaniani Join Date: Sep 2009 Location: Tehran, Iran Posts: 1,267 Blog Entries: 1 Rep Power: 25	i guess you want to map the whole internal domain , not just BCs, maybe manipulatedField in swak4Foam helps __________________ My Personal Website (http://nimasamkhaniani.ir/) Telegram channel (https://t.me/cfd_foam)

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October 21, 2015, 11:52		#3
schwam New Member Join Date: Apr 2014 Posts: 8 Rep Power: 12	I dont know what you exactly mean with "map the hole domain". I want boundary conditions which result in specific wind-conditions at a certain point within my iternal mesh (where my meterological station(s) is/are located). At the time i only extrapolate the wind conditions from my meteorology-stations to my boundary condition but since i have a complex high mounain terrain the wind produced by these conditions does not fit since the mountain ridges defelct the wind.