# Total Force time series plot

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• Last Post 13 December 2017
prabu.peterz@gmail.com posted this 23 October 2017

I am solving a Open channel Multiphase(water and air) VOF problem. i am interested in plotting Total Force at a point vs time plots.The point i have chosen is on a wall perpendicular to the flow direction. Solution#2049647 guides to plot the same.The solution also suggest to sum both viscous and pressure force, irrespective of direction. I am also interested in adding dynamic force along with pressure and Viscous force. How shall i proceed writing CFF(Custom field function) for the same. After find this how to validate the results, is there a benchmark problem to validate the force plots.Kindly do the needful.

Thanks,

PRABU

9994435153

prabu.peterz@gmail.com

Raef.Kobeissi posted this 27 October 2017

Hello PRABU,

Did you use the Monitor tool in fluent to capture the force vs time? Also, have you created a point at a certain coordinate in your domain to use in the Monitor facility? Please note, the above instructions are used in ANSYS Fluent. Cheers

Raef Kobeissi

prabu.peterz@gmail.com posted this 20 November 2017

Hello Raef,

Thanks for the response. I  am using ANSYS Fluent only. I have created a point at a certain coordinate in my numerical domain to use in the Monitor facility.

But there is no clear cut force monitors. I think it has to be calculated from Pressures. How to achieve it. Thanks.

maliuzair posted this 13 December 2017

Hello dears,
How can I get to the solution number mentioned in bold i.e. Solution#2049647. I have see many posts with solution numbers but I am totally new to the forum.
Regards

I am solving a Open channel Multiphase(water and air) VOF problem. i am interested in plotting Total Force at a point vs time plots.The point i have chosen is on a wall perpendicular to the flow direction. Solution#2049647 guides to plot the same.The solution also suggest to sum both viscous and pressure force, irrespective of direction. I am also interested in adding dynamic force along with pressure and Viscous force. How shall i proceed writing CFF(Custom field function) for the same. After find this how to validate the results, is there a benchmark problem to validate the force plots.Kindly do the needful.

Thanks,

PRABU

9994435153

prabu.peterz@gmail.com