Learn COMSOL-MULTIPHYSICS-SCRIPTING with Real Code Examples

COMSOL Multiphysics is a simulation platform for modeling coupled physical phenomena (e.g., structural, thermal, fluid, electrical).

Scripting provides programmatic access to COMSOL models, allowing automation of repetitive modeling tasks.

Supports batch processing, parametric sweeps, optimization, and result export.

Integrates with MATLAB for enhanced data analysis and plotting.

Widely used in mechanical, electrical, chemical, civil, and biomedical engineering simulations.

COMSOL API (`mphmodel`, `mphgeom`, `mphphysics`, `mphstudy` objects)

Scripting control over geometry, materials, and boundary conditions

Batch study execution with multiple parameters

Data export via `mphplot`, `mphexport`, or MATLAB arrays

Integration with optimization and sensitivity analysis modules

Geometry - spatial domain for simulation

Physics - defining governing equations and boundary conditions

Mesh - discretization of geometry

Study - defines the solver and type of simulation

Scripting - programmatic control of all model components

Model files (.mph) containing geometry, physics, mesh, and studies

MATLAB or Java scripts controlling model creation and simulation

Data files for input parameters and boundary conditions

Scripts for results extraction and visualization

Optional integration with optimization or external solvers

Create a new COMSOL model object

Define geometry, materials, and physics programmatically

Set up mesh and solver settings via scripting

Run simulations or parametric sweeps

Postprocess results and export data automatically

Beginner: Automate simple 2D simulation setup

Intermediate: Parametric sweeps with multiple variables

Advanced: Multi-physics models with scripting automation

Expert: Integrate optimization and sensitivity analysis

Architect: Large-scale batch simulations with HPC integration

COMSOL scripting vs GUI: scripting enables automation and reproducibility

MATLAB vs Java API: MATLAB simplifies integration with plots and analysis, Java allows standalone deployment

COMSOL vs ANSYS scripting: Both support automation; COMSOL emphasizes multiphysics coupling

COMSOL vs Simulink: COMSOL for PDE-based physics, Simulink for dynamic system simulations

COMSOL vs Excel modeling: Excel for data, COMSOL for physics-based simulation

2001 - COMSOL introduced LiveLink for MATLAB scripting

2005 - Expanded API functionality for geometry and physics objects

2010 - Parametric sweeps and batch automation improvements

2015 - Enhanced multiphysics coupling and solver scripting

2020 - HPC support and cloud simulation integration

2025 - Continued expansion with AI/ML-assisted simulation automation

COMSOL Multiphysics - Simulation platform for PDE-based modeling

Model - Object containing geometry, physics, mesh, studies, and results

Study - Defines solver and type of simulation

Physics - Governing equations and boundary conditions

Scripting API - MATLAB or Java interface to automate COMSOL models