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September 2010

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Re: [Nek5000-users] [*] Re: Function to calculate volume intergral
by nek5000-users＠lists.mcs.anl.gov 02 Sep '10

02 Sep '10

Mani, A variable temp can be used only in the subroutines which are called with the arguments of collocation point coordinates and global element number: ix,iy,iz,ieg These routines are userf, userq, userbc and useric where temp has the following meaning (updated through NEKUSE) temp = t(ix,iy,iz,gllel(ieg)) Note that gllel(ieg) returns the local element number on a processor for a global element number ieg. Similar meaning there have ux,uy,uz and ps(1),ps(2)...,ps(ldimt), namely, velocity components and passive scalars at the point ix,iy,iz,ieg Best, Aleks ----- Original Message ----- From: nek5000-users(a)lists.mcs.anl.gov To: nek5000-users(a)lists.mcs.anl.gov Sent: Thursday, September 2, 2010 7:51:55 AM GMT -06:00 US/Canada Central Subject: Re: [Nek5000-users] [*] Re: Function to calculate volume intergral Thanks! I tried that earlier but it was seg faulting cause I put in temperature as 'temp' and not 't'. Mani On 09/02/2010 05:56 PM, nek5000-users(a)lists.mcs.anl.gov wrote: > Hi Mani, > > You can use > > n = nx1*ny1*nz*nelv > vytvol = glsc3(vy,t,bm1,n) > > for the volume integral of Vy and temperature > > Best, > Aleks > > > ----- Original Message ----- > From: nek5000-users(a)lists.mcs.anl.gov > To: nek5000-users(a)lists.mcs.anl.gov > Sent: Thursday, September 2, 2010 12:38:10 AM GMT -06:00 US/Canada Central > Subject: [Nek5000-users] Function to calculate volume intergral > > Hi, > > Is there a function one can use in Nek that computes volume > integrals. I'd like to compute the Nusselt number for Rayleigh-Benard > convection (=1 +<Vy*Temp>), where Vy is the vertical velocity and<> is > the volume integral. > > Thanks, > Mani > _______________________________________________ > Nek5000-users mailing list > Nek5000-users(a)lists.mcs.anl.gov > https://lists.mcs.anl.gov/mailman/listinfo/nek5000-users > _______________________________________________ > Nek5000-users mailing list > Nek5000-users(a)lists.mcs.anl.gov > https://lists.mcs.anl.gov/mailman/listinfo/nek5000-users > _______________________________________________ Nek5000-users mailing list Nek5000-users(a)lists.mcs.anl.gov https://lists.mcs.anl.gov/mailman/listinfo/nek5000-users

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Function to calculate volume intergral
by nek5000-users＠lists.mcs.anl.gov 02 Sep '10

02 Sep '10

Hi, Is there a function one can use in Nek that computes volume integrals. I'd like to compute the Nusselt number for Rayleigh-Benard convection (=1 + <Vy*Temp>), where Vy is the vertical velocity and <> is the volume integral. Thanks, Mani

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