FEM ElementFluid1D: Difference between revisions

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<languages/>
<translate>
<translate>
<!--T:10-->
{{Docnav
|[[FEM_ElementGeometry2D|Shell plate thickness]]
|[[FEM_ConstraintElectrostaticPotential|Constraint electrostatic potential]]
|[[FEM_Module|FEM]]
|IconL=FEM_ElementGeometry2D.png
|IconC=Workbench_FEM.svg
|IconR=Fem-constraint-electrostatic-potential.svg
}}

<!--T:1-->
<!--T:1-->
{{GuiCommand
{{GuiCommand|Name=FEM ConstraintContact|MenuLocation=FEM → Constraint contact||Workbenches=[[Fem Workbench|FEM]]|Shortcut=|SeeAlso=[[FEM_tutorial|FEM tutorial]]}}
|Name=FEM ElementFluid1D
|MenuLocation=Model → Fluid section for 1D flow
|Workbenches=[[Fem Workbench|FEM]]
|Shortcut=
|SeeAlso=[[FEM_tutorial|FEM tutorial]]
}}


==Description== <!--T:2-->
==Description== <!--T:2-->
Creates a FEM constraint for contact between 2 surfaces.


==Use== <!--T:3-->
<!--T:6-->
Creates a FEM fluid section element for aerodynamic and hydraulic networks
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#Click on [[Image:FEM ConstraintContact.png|32px]] or choose {{KEY| FEM}} → {{KEY|[[Image:FEM ConstraintContact.png|32px]] Constraint contact}} from the top menu.

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#Select the master face.
==Usage== <!--T:3-->
#Select the slave face.

#Enter a contact stiffness.
<!--T:7-->
#Enter a friction coefficient.
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# Click on [[Image:FEM ElementFluid1D.png ‎|32px]] or choose {{KEY|Model}} → {{KEY|[[Image:FEM ElementFluid1D.png ‎|32px]] Fluid section for 1D flow}} from the top menu.
# Select Fluid type: Liquid, Gas or Open Channel
# Select Section type: Pipe Manning, Pipe Inlet etc.
# Enter Section type parameters.
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# Select and add edge.


==Limitations== <!--T:4-->
==Limitations== <!--T:4-->

#The contact constraint can only be applied to two faces.
<!--T:8-->
#The card only works with a 3 noded network element type. Information can be found here: http://web.mit.edu/calculix_v2.7/CalculiX/ccx_2.7/doc/ccx/node54.html


==Notes== <!--T:5-->
==Notes== <!--T:5-->

#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.
<!--T:9-->
#The slave face is the face which penetrates into the master face, and therefore experiences more deformation.
#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
#An example of the set up of a hydraulic network can be found here: http://web.mit.edu/calculix_v2.7/CalculiX/ccx_2.7/doc/ccx/node13.html
# The *FLUID SECTION card is used to model fluid elements for 1D flow. Information on the card can be found here: http://web.mit.edu/calculix_v2.7/CalculiX/ccx_2.7/doc/ccx/node205.html

<!--T:11-->
{{Docnav
|[[FEM_ElementGeometry2D|Shell plate thickness]]
|[[FEM_ConstraintElectrostaticPotential|Constraint electrostatic potential]]
|[[FEM_Module|FEM]]
|IconL=FEM_ElementGeometry2D.png
|IconC=Workbench_FEM.svg
|IconR=Fem-constraint-electrostatic-potential.svg
}}


</translate>
</translate>
{{FEM Tools navi{{#translation:}}}}
{{Userdocnavi{{#translation:}}}}
{{clear}}
{{clear}}
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<languages/>

Revision as of 01:26, 1 March 2020

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FEM ElementFluid1D

Menu location
Model → Fluid section for 1D flow
Workbenches
FEM
Default shortcut
None
Introduced in version
-
See also
FEM tutorial

Description

Creates a FEM fluid section element for aerodynamic and hydraulic networks

Usage

  1. Click on or choose Model → 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 card only works with a 3 noded network element type. Information can be found here: http://web.mit.edu/calculix_v2.7/CalculiX/ccx_2.7/doc/ccx/node54.html

Notes

  1. An example of the set up of a hydraulic network can be found here: http://web.mit.edu/calculix_v2.7/CalculiX/ccx_2.7/doc/ccx/node13.html
  2. The *FLUID SECTION card is used to model fluid elements for 1D flow. Information on the card can be found here: http://web.mit.edu/calculix_v2.7/CalculiX/ccx_2.7/doc/ccx/node205.html
FEM

Constraints

User documentation
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