Table of Contents
HEATX
3D heat exchange
Description
The element is defined by 4 or 6 nodes specified in NODES.
Currently, only the linear element is available. The element only works with thermal law LINADC.
A classic element consists of 2 (or 3) pipe nodes as well as ground nodes to which they are connected. The heat exchange between the pipe and the ground is a function of the temperature difference between the fluid inside the pipe and the ground.
Type: 108
Implemented by: B. Cerfontaine, 2015
Files
Prepro: HEATEXA.F
Lagamine: HEATEXB.F
Input file
| Title (A5) | |
|---|---|
| TITLE | “HEATX” in the first five columns |
| Control data (I5) | |
| NELEM | Number of elements |
| Definition of the elements (2I5/6I5) | |
| NINTE | Number of integration points (1, 2, or 3) |
| LMATE | Material law |
| NODES(6) | List of nodes (4 or 6), the meaning of the nodes varies depending on the value IBOUND in the law: → IBOUND = 0 (normal) or IBOUND = 1 (free flow) - Nodes 1 to 2 (linear case) or 1 to 3 (parabolic case): nodes of the volumic element to which the linear node is connected - Nodes 3 to 4 (linear case) or 4 to 6 (parabolic case): nodes of the pipe element, numbering direction defined in the positive rate of the flow → IBOUND = 2 (loop condition) - Nodes 1 to 2 (linear case) or 1 to 3 (parabolic case): Pipe IN nodes - Nodes 3 to 4 (linear case) or 4 to 6 (parabolic case): Pipe OUT nodes |
Results
SIGMA: Conduction flow, advection, lateral storage