Heat transfer II
This problem demonstrates using LS-DYNA to solve a 3-dimensional transient heat transfer problem with temperature boundary conditions. Fully implicit time integration method is used for this nonlinear thermal problem. Download is available in the download section of this document.
Keywords
Keywords
This example has been taken from the Thermal class of Dr. Art Shapiro. Example name:
transient_heat_transfer.k
The used Keywords in alphabetical order.
*BOUNDARY_TEMPERATURE_NODE *CONTROL_SOLUTION *CONTROL_TERMINATION *CONTROL_THERMAL_SOLVER *CONTROL_THERMAL_TIMESTEP *DATABASE_BINARY_D3PLOT *DATABASE_TPRINT *ELEMENT_SOLID *END *KEYWORD *MAT_THERMAL_ISOTROPIC *NODE *PART *SECTION_SOLID *TITLE
Reduced Input
Reduced Input
This example has been taken from the Thermal class of Dr. Art Shapiro. Example name:
transient_heat_transfer.k
*Node and *Element Cards are removed.
$ 1-Dimensional Transient Heat Transfer in a Slab
$
$ 4--------3 boundary conditions
$ /| /| y insulated surface at nodes 1,2,3,4
$ / | / | | T=1. at nodes 9,10,11,12
$ 8--------7 | |
$ / 1- /| 2 o---- x material properties
$ / / / | / / k=1. rho=1.
$ 12--------11 |/ z c=1.
$ | 5- | 6
$ | / | / analytical answer at nodes 5,6,7,8
$ | |/ time temperature
$ 9--------10 0.10 0.28220
$
*KEYWORD
$
$=============================CONTROL DEFINITIONS ==============================
$
*TITLE
transient conduction in a slab
*CONTROL_SOLUTION
1
*CONTROL_THERMAL_SOLVER
1 0 3
*CONTROL_THERMAL_TIMESTEP
0 1. .01
*CONTROL_TERMINATION
.1
*DATABASE_TPRINT
.02
*DATABASE_BINARY_D3PLOT
.01
$
$============================== PART DEFINITIONS ===============================
$
*PART
$ PID SECID MID TMID
slab
1 1 1
$
$============================= SECTION PROPERTIES ==============================
$
*SECTION_SOLID
$ SECID ELFORM
1 1
$
$======================== THERMAL MATERIAL PROPERTIES ==========================
$
*MAT_THERMAL_ISOTROPIC
1 1.
1. 1.
$
$============================= NODE DEFINTIONS =================================
$
*NODE
1 0. 0. 0.
2 1. 0. 0.
3 1. 1. 0.
4 0. 1. 0.
5 0. 0. .5
6 1. 0. .5
7 1. 1. .5
8 0. 1. .5
9 0. 0. 1.
10 1. 0. 1.
11 1. 1. 1.
12 0. 1. 1.
$
$============================ ELEMENT DEFINITIONS ==============================
$
*ELEMENT_SOLID
1 1 1 2 3 4 5 6 7 8
2 1 5 6 7 8 9 10 11 12
$
$======================== THERMAL BOUNDARY CONDITIONS ==========================
$
*BOUNDARY_TEMPERATURE_NODE
9 0 1.
10 0 1.
11 0 1.
12 0 1.
*END
Figures
Figures
This example has been taken from the Thermal class of Dr. Art Shapiro. Example name:
transient_heat_transfer.k
Animated Result
Animated Result
This example has been taken from the Thermal class of Dr. Art Shapiro. Example name:
transient_heat_transfer.k
Download
Download
This example has been taken from the Thermal class of Dr. Art Shapiro. Example name:
transient_heat_transfer.k
