# gbarivazhagan/3d-heat-conduction architecture

> Architecture diagram of the GitHub repository gbarivazhagan/3d-heat-conduction, generated by GitDiagram from its file tree, README and a sample of source files (last updated 2026-09-25). It is an AI-made overview: check details against the source.

- Interactive diagram: https://gitdiagram.com/gbarivazhagan/3d-heat-conduction
- Repository: https://github.com/gbarivazhagan/3d-heat-conduction

## Overview

This is a small, single-file 3D Cartesian heat-conduction solver, not a multi-service application. Its workflow is to establish the domain and temperature conditions, iteratively compute conduction fluxes and update temperature, then write temperature fields to data files. The README documents an initially zero temperature and six face temperatures; the excerpt shows grid setup, flux calculations, and file output, but omits parts of the initialization and update code, so those details are represented only at a high level.

Main entry points: [`3DHC.c`](https://github.com/gbarivazhagan/3d-heat-conduction/blob/master/3DHC.c) (Heat solver)

## Diagram (Mermaid)

```mermaid
flowchart TD

node_user(("User"))
node_solver["Heat solver<br/>[3DHC.c]"]
node_domain["Grid setup<br/>[3DHC.c]"]
node_conditions["Temperature conditions<br/>[3DHC.c]"]
node_flux["Flux calculation<br/>[3DHC.c]"]
node_update["Temperature update<br/>[3DHC.c]"]
node_initial["Initial field"]
node_final["Final field"]
node_iterations["Iteration fields"]

node_user -->|"runs"| node_solver
node_solver -->|"sets up"| node_domain
node_solver -->|"initializes"| node_conditions
node_conditions -->|"writes"| node_initial
node_solver -->|"calculates"| node_flux
node_solver -->|"updates"| node_update
node_solver -->|"writes"| node_final
node_solver -->|"writes"| node_iterations

click node_solver "https://github.com/gbarivazhagan/3d-heat-conduction/blob/master/3DHC.c"
click node_domain "https://github.com/gbarivazhagan/3d-heat-conduction/blob/master/3DHC.c"
click node_conditions "https://github.com/gbarivazhagan/3d-heat-conduction/blob/master/3DHC.c"
click node_flux "https://github.com/gbarivazhagan/3d-heat-conduction/blob/master/3DHC.c"
click node_update "https://github.com/gbarivazhagan/3d-heat-conduction/blob/master/3DHC.c"

classDef toneNeutral fill:#f8fafc,stroke:#334155,stroke-width:1.5px,color:#0f172a
classDef toneBlue fill:#dbeafe,stroke:#2563eb,stroke-width:1.5px,color:#172554
classDef toneAmber fill:#fef3c7,stroke:#d97706,stroke-width:1.5px,color:#78350f
classDef toneMint fill:#dcfce7,stroke:#16a34a,stroke-width:1.5px,color:#14532d
classDef toneRose fill:#ffe4e6,stroke:#e11d48,stroke-width:1.5px,color:#881337
classDef toneIndigo fill:#e0e7ff,stroke:#4f46e5,stroke-width:1.5px,color:#312e81
classDef toneTeal fill:#ccfbf1,stroke:#0f766e,stroke-width:1.5px,color:#134e4a
class node_user toneBlue
class node_solver,node_domain,node_conditions,node_flux,node_update toneTeal
class node_initial,node_final,node_iterations toneIndigo
```

## Components

### Other components

- **User**
- [Heat solver](https://github.com/gbarivazhagan/3d-heat-conduction/blob/master/3DHC.c): `3DHC.c`
- [Grid setup](https://github.com/gbarivazhagan/3d-heat-conduction/blob/master/3DHC.c): `3DHC.c`
- [Temperature conditions](https://github.com/gbarivazhagan/3d-heat-conduction/blob/master/3DHC.c): `3DHC.c`
- [Flux calculation](https://github.com/gbarivazhagan/3d-heat-conduction/blob/master/3DHC.c): `3DHC.c`
- [Temperature update](https://github.com/gbarivazhagan/3d-heat-conduction/blob/master/3DHC.c): `3DHC.c`
- **Initial field**
- **Final field**
- **Iteration fields**

## Connections

- User → Heat solver: runs
- Heat solver → Grid setup: sets up
- Heat solver → Temperature conditions: initializes
- Temperature conditions → Initial field: writes
- Heat solver → Flux calculation: calculates
- Heat solver → Temperature update: updates
- Heat solver → Final field: writes
- Heat solver → Iteration fields: writes