SPH meshing problem

Altair Forum User
Altair Forum User
Altair Employee
edited October 2020 in Community Q&A

Hi,

I am trying to simulate a bird impact on a plate with RADIOSS. So I am creating my model on hypermesh now, i chose to consider the bird as a fluid with a density of 438 kg/m3. I would like to work with SI units and the dimensions of the bird are 0.1325m long cylinder with two hemisphere ends having a radius of 0.075m. I am now trying to mesh this geometry with the SPH module in hypermesh. So i entered a pitch of 1e-3m and a density of 438kg/m3 as i said before. But when i create the mesh, nothing happen and i only get this message '0 mass elements created'. I attached my file with the topic.
I don't know what could be my error, more of that I tried to do it using mm instead of m and it worked... But I really want to use SI units.

Thank you in advance for your help, 
Gaspard.

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Answers

  • meng2019
    meng2019 Altair Community Member
    edited September 2019

    hi 

    when you creat SPH particles, you should ensure the pitch is less than the min size pf your model. i met the same problem, because i gave the value of pitch is too large.

     

    best