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Showing results 1 to 5 of 5 Search took 0.00 seconds. Search: Posts Made By: bkassar

Forum: OpenFOAM Programming & Development March 18, 2015, 12:43

Replies: 14 problem in defining the field Views: 1,383 Posted By bkassar So now, you just need the value of CoM at three... So now, you just need the value of CoM at three consecutive time steps; let's say CoM(i-2), CoM(i-1) and CoM(i). Choose a second-order differencing scheme and use these three values to obtain the...

Forum: OpenFOAM Programming & Development March 17, 2015, 14:07

Replies: 14 problem in defining the field Views: 1,383 Posted By bkassar Hi Muhammad, The second derivative you want to... Hi Muhammad, The second derivative you want to take is with respect to time?

Forum: OpenFOAM Programming & Development March 16, 2015, 11:30

Replies: 14 problem in defining the field Views: 1,383 Posted By bkassar I see. So, by double derivative you mean double... I see. So, by double derivative you mean double derivative with respect to time? You want the acceleration of this center of mass? If the answer is yes, you could store the values of CoM in three...

Forum: OpenFOAM Programming & Development March 16, 2015, 11:08

Replies: 14 problem in defining the field Views: 1,383 Posted By bkassar Hi Muhammad, As far as I see, you computed the... Hi Muhammad, As far as I see, you computed the center of mass and stored it in 'CoM'. Could you tell us what you want to compute? It is not clear to me why you need the gradient... cheers, Bruno

Forum: OpenFOAM Programming & Development March 15, 2015, 12:17

Replies: 14 problem in defining the field Views: 1,383 Posted By bkassar Hi Muhammad, The compiler is complaining about... Hi Muhammad, The compiler is complaining about the constructor of uniformDimensionedVectorField. However, I think your main problem is not that. The main issue is that you are trying to compute...

Showing results 1 to 5 of 5

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