FEM ElementFluid1D

From FreeCAD Documentation
Revision as of 08:36, 26 June 2017 by Makkemal (talk | contribs)
Jump to: navigation, search

FEM ConstraintContact.png FEM ConstraintContact

Menu location
FEM → Constraint contact
Workbenches
FEM
Default shortcut
Introduced in version
-
See also
FEM tutorial


Description

Creates a FEM fluid section element for aerodynamic and hydraulic networks

Use

  1. Click on 32px or choose FEM32px Fluid section for 1D flow from the top menu.
  2. Select Fluid type: Liquid, Gas or Open Channel
  3. Select Section type: Pipe Manning, Pipe Inlet etc.
  4. Enter Section type parameters.
  5. Select and add edge.

Limitations

  1. The contact constraint can only be applied to two faces.

Notes

  1. The contact stiffness should be 10 times the young's modulus of the material for hard contact. The higher the value for contact stiffness, the harder the contact between surfaces.
  2. The slave face is the face which penetrates into the master face, and therefore experiences more deformation.
  3. The *CONTACT PAIR card is used for modeling contact in CalculiX. The constraint uses Face-to-Face penalty contact and the contact formulation is explained in detail at http://web.mit.edu/calculix_v2.7/CalculiX/ccx_2.7/doc/ccx/node112.html
Other languages:
English • ‎français • ‎italiano • ‎română