Introduction
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Comsol
Multiphysics is
an interactive environment
to model
single and coupled
phenomena based
on partial differential
equations (PDEs)
— the equations
that underlie most
science
and engineering
applications.
You can easily model
most phenomena through
predefined modeling
templates. Modifying
these to specific
applications is
possible through
equation-based modeling
capabilties.
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To
deal with the increasing
demand for realistic representations
of the world around us,
you can easily model systems
of coupled physics phenomena.
COMSOL Multiphysics provides
a friendly, fast and versatile
environment for multiphysics
modeling.

The
graphical user interface
combines the ability to
run ready-made applications
in a variety of physics
fields with equation-based
modeling. This model simulates
the pressure wave propagation
in a muffler for a combustion
engine. It uses a general
approach for analyzing the
damping of harmonic pressure
waves.