# total force values

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 October 14, 2009, 07:51 total force values #1 Member   Join Date: Aug 2009 Posts: 42 Rep Power: 9 Hello, I would like to know the values of the total force over a pile. When I use the expression force_x@PILE I obtain the values for one time step and I would like to know the total force for the entire simulation. Thank you in advance

 October 14, 2009, 17:23 #2 Super Moderator   Glenn Horrocks Join Date: Mar 2009 Location: Sydney, Australia Posts: 13,640 Rep Power: 105 ? The function returns the total force at that time step. What do you mean by total force for the entire simulation? Do you mean average force?

 October 15, 2009, 03:18 #3 Member   Join Date: Aug 2009 Posts: 42 Rep Power: 9 Sorry, I didn´t explained the issue very well. At the end of the .out files, when a simulation has finished, CFX gives you the Pressure forces and viscous forces for x, y and z. Are these values the average forces for the whole simulation?? What I need is to compare drag and inertial forces (Morison equation) with forces obtained in the simulation in order to know the quality results. Thank you in advance, your help is very appreciated Last edited by cfxmar; October 16, 2009 at 06:57. Reason: Complete the explanation

 October 16, 2009, 07:03 #4 Member   Join Date: Aug 2009 Posts: 42 Rep Power: 9 I have seen in the manuals Drag Force is calculated for the last timestep at the simulation adding Pressure Forces and viscous forces at "x" axis that appears in the .out file. So, Cd could be calculated as a function of Drag Force, density, velocity and Area. żIs that correct? I would like to know if CFX show also the Inertial Forces that appears in the Morison Equation: Total force in "x" axis = Drag Forces + Inertial Forces in order to calculate Cm. Thank you in advance

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