Jump to content
Sign in to follow this  
DAMIR88

SPH- Smoothed Particle Hydrodynamics and Type7 interface

Recommended Posts

Good morning to everybody


 


I'm working on ditching bodies in water, modelling it with SPH elements, and the bodies like rigid bodies.


 


I use interface type7, as master i take the body surface, and slave nodes i take the sph elements (nodes);


 


In interface edit panel, i use Istf=1 (just 0 and 1 avaible for sph formulation) and here we came to my need:


 


i have to calculate the interface stifness (with istf=1 STFAC=costant interface sifness), between water and body,


 


because from this depends in a large part the time step, but i don't know how. 


 


Should i consider a simple average value between bulk modulus of water and young modulus of body material,


 


or a average weighted value, by a characteristic of entry in water, like entry speed or water height...


 


thanks to all


 


Damir


 


 


 


Share this post


Link to post
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
You are posting as a guest. If you have an account, please sign in.
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

Sign in to follow this  

×
×
  • Create New...