[tonnymiked@gmail.com]

hi,

I have few question need your help?

1. Can you please show me how to check solid weight in flow 3D after insert mass density?

2. Do you have manual on how to key in moment of inertia in flow 3D?

Hope to hear from you as soon as possible. thanks for your help.

[thunde47]

Hi -

To find the object mass, it is usually easiest to set the material density and then preprocess your simulation. The mass can be found in the .prpgrf file based on component number.

Similarly, if you are looking to compute the object moment of inertia, you can find relevant values within the .prpgrf file as well (this will be in the simulation directory). You can tweak the moments of inertia as necessary based on your requirements thereafter.

[tonnymiked@gmail.com]

hi,

thanks for your help, but i couldnt find the .prpgrf file in my working folder. Any idea where i can get those file?

[thunde47]

prpgf is generated when you just preprocess the simulation. Right click on the simulation and instead of Run Simulation, click Run preprocessor.

[M.Nazrin]

Hello, where can i find those value? is it under analyze tab? can you guide me to those parameters (mass, center gravity, mass inertia tensor)?

[thunde47]

Here is the step by step process:

1. Go the simulation folder where all the files are located.
2. Open prpout.<prepin extension> file in notepad++ or some editor of your choice.
3. Search for the word "inertia".

You will find the mass, volume, moment of inertia tensor in there. Please check the image below.

[M.Nazrin]

Originally Posted by thunde47

Here is the step by step process:

1. Go the simulation folder where all the files are located.
2. Open prpout.<prepin extension> file in notepad++ or some editor of your choice.
3. Search for the word "inertia".

You will find the mass, volume, moment of inertia tensor in there. Please check the image below.

tq for the reply sir. SO the value was given in the inertia matrix form right? tqvm!!!