[stufo]

Hi everyone,

I'm working on analyzing the forces which occur on an object standing in a current.
Therefore I changed my controlDict to get the Forces.dat. This files includes lots of numbers and I was wondering if someone could help me interpreting them?

# Time forces(pressure, viscous) moment(pressure, viscous)
3.0495074 (((0.32540538 -0.0078244099 -0.0007789344) (6.7894943 -0.052924547 -4.4842572)) ((0.0017677939 0.057113061 2.0317881e-05) (0.013213033 1.8573447 0.011517997)))
3.1582778 (((0.30514633 0.0027069022 -0.00077956082) (6.6367396 -0.10194604 -4.8944236)) ((-0.00085246205 0.06008529 1.8713607e-05) (0.0085110664 1.8092805 0.0097297487)))
....

After copying everything into Excel it looks a bit better:

# Time forces pressure viscous moment pressure viscous
3.0495074 0.32540538 -0.0078244099 -0.0007789344 6.7894943 -0.052924547 -4.4842572 0.0017677939 0.057113061 2.0317881e-05 0.013213033 1.8573447 0.011517997
3.1582778 0.30514633 0.0027069022 -0.00077956082 6.6367396 -0.10194604 -4.8944236 -0.00085246205 0.06008529 1.8713607e-05 0.0085110664 1.8092805 0.0097297487
3.2610254 0.38226206 -0.035842856 -0.00077955302 6.5805845 0.003704612 -4.8783838 0.005028375
0.070154761 2.312134e-05 -0.016757856 1.8145354 -0.0029691682
...


I think that the first column is the time and the second one the force on the defined point. Am I right?

Thanks for helping!

[val46]

Originally Posted by stufo

I think that the first column is the time and the second one the force on the defined point. Am I right?

Hi,

a force is always acting on a face (not on a point).
But yes, you are right.
Values are in this order:
1. Time
2. pressure force (in X-direction)
3. pressure force (Y)
4. pressure force (Z)
5. viscous force (X)
6. viscous force (Y)
7. viscous force (Z)
8. moment from pressure force (in X-direction)
9. and so on...