COMSOL Multiphysics

COMSOL Gas Discharge Tutorial

This tutorial provides a step-by-step guide for simulating gas discharge in COMSOL Multiphysics.

Table of Contents

1. Introduction
2. Theory
3. COMSOL Setup
4. Simulation Results
5. Conclusion

Introduction

Gas discharge is a phenomenon where an electric current flows through a gas, often resulting in light emission. This tutorial demonstrates how to simulate gas discharge using COMSOL Multiphysics.

Theory

The physics of gas discharge involves solving the following equations:

• Poisson’s equation
• Electron continuity equation
• Ion continuity equation

For more details, see the theory document.

COMSOL Setup

1. Open COMSOL Multiphysics.
2. Create a new model and select Plasma from the physics list.
3. Define the geometry and materials.
4. Set up the boundary conditions and mesh.
5. Run the simulation.

For detailed instructions, see the COMSOL model file.

Simulation Results

The simulation results show the electric potential, electron density, and ion density distributions.

For more results, see the results

Conclusion

This tutorial demonstrates how to simulate gas discharge in COMSOL Multiphysics. The results can be used to analyze plasma behavior in various applications.