Learning Center Resources

Introduction to Modeling Pressure Acoustics

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In this 9-part, self-paced course, learn how to model pressure acoustics in COMSOL Multiphysics^®. Through step-by-step demonstrations in the software, comprehensive discussions, and thorough explanations, you will gain a solid foundation in the fundamentals of building such models. You will also learn about various specialized physics features and modeling techniques you can use to efficiently perform acoustics analysis. The material covered through the duration of the course is as follows:

Room acoustics surround domain, open space, and half space. Different versions of the acoustics of a room geometry used for various pressure acoustics analyses performed through the duration of the course.

• Part 1: Modeling Room Acoustics
  
  • Introduce example and build from start to finish
• Part 2: Meshing and Solving Pressure Acoustics Models
  
  • Meshing and solver considerations and options
• Part 3: Including Damping in Pressure Acoustics Models
  
  • Implementing boundary damping and volumetric damping
• Part 4: Pressure Acoustics Analysis via Perfectly Matched Layers (PMLs)
  
  • Setting up PMLs to model open space for frequency domain analysis
• Part 5: Scattered Field Analysis with the Background Pressure Field Feature
  
  • Using the feature to model and study the scattered pressure field
• Part 6: Modeling Pressure Acoustics with the Boundary Element Method
  
  • Review differences in the model setup (versus FEM-based analysis) for pressure acoustics models
  • Perform an open space acoustics analysis using BEM
• Part 7: Modeling Transient Pressure Acoustics with the Finite Element Method
  
  • Resolving time-dependent waves
• Part 8: Setting Up Perfectly Matched Layers for Transient Pressure Acoustics Models
  
  • Setting up PMLs to model open space for transient analysis
• Part 9: Time Explicit Method for Large Transient Pressure Acoustics Models
  
  • Solving using the time-explicit discontinuous Galerkin method

Room acoustics, total acoustic pressure field. Results for the open-space acoustics analysis using BEM built in Part 6 of the course, displaying the total acoustic pressure field.

Model files are included in each part of the course, so you can follow along step by step on your own time. Upon completing this course, you will know how to both effectively and efficiently perform pressure acoustics analysis.