Code_Aster ®
Version
7.4
Titrate:
Thermal modeling AXIS_FOURIER
Date:
01/06/05
Author (S):
X. DESROCHES, F. LEBOUVIER Key
:
U3.23.02-E Page
: 1/2
Organization (S): EDF-R & D/AMA, DeltaCAD
Handbook of Utilization
U3.23 booklet: Thermal finite elements 2D
Document: U3.23.02
Thermal modeling AXIS_FOURIER
Summary:
This document describes for thermal modeling AXIS_FOURIER:
· degrees of freedom carried by the finite elements which support modeling,
· the related meshs supports,
· supported materials and loadings,
· nonlinear possibilities,
· case-tests implementing modeling.
Modeling AXIS_FOURIER (Phénomčne: THERMIQUE) corresponds to finite elements of which meshs
supports are plane and make it possible to model the longitudinal section of parts of revolution around the axis
OZ (in cylindrical co-ordinates) subjected to boundary conditions of which the space distribution
break up into Fourier series around this axis.
Handbook of Utilization
U3.23 booklet: Thermal finite elements 2D
HT-66/05/004/A
Code_Aster ®
Version
7.4
Titrate:
Thermal modeling AXIS_FOURIER
Date:
01/06/05
Author (S):
X. DESROCHES, F. LEBOUVIER Key
:
U3.23.02-E Page
: 2/2
1 Discretization
1.1
Degrees of freedom
Modeling
Degrees of freedom
(with each node node)
AXIS_FOURIER
TEMP: corresponds to the temperature
1.2
Net support of the matrices of rigidity
Modeling Nets Interpolation
Remarks
AXIS_FOURIER TRIA3
Linear
QUAD4
Bilinear
TRIA6
Quadratic
QUAD8
Serendip
QUAD9
Biquadratic
1.3
Net support of the loadings
Modeling Nets Interpolation
Remarks
AXIS_FOURIER SEG2
Linear or
Bilinear
SEG3
Quadratic,
Serendip or
Biquadratic
2 Loadings
supported
The loadings available are as follows:
· SOURCE
Allows to apply voluminal sources.
· FLUX_REP
Allows to apply normal flows to faces of elements.
· ECHANGE
Allows to apply conditions of exchange with an outside temperature with faces
elements.
3 Possibilities
non-linear
Nothing.
4
Examples of implementation: case-tests
· Stationary linear thermics
TPLV305A [V4.04.305]: Analyze thermal linear of a cylinder subjected to a temperature
imposed on external surface, according to a harmonic function (mode 1).
Handbook of Utilization
U3.23 booklet: Thermal finite elements 2D
HT-66/05/004/A
Outline document