Comsol 5.3 ray optics module manual
View screenshot Poroelastic Waves Interface Updated with the New Biot-Allard Model PMLs can be added from the Definitions node and support both polynomial and rational scaling options for 3D, 2D asymmetric, 2D, and 1D models in Cartesian, Cylindrical, and Spherical geometries. This was previously only available for the Pressure Acoustics, Frequency Domain and Convected Wave Equation, Time Explicit interfaces. With COMSOL Multiphysics ® version 5.3, the Pressure Acoustics, Transient physics interface now includes PML functionality in the time domain, for transient acoustic simulations based on the finite element method. PMLs enable you to truncate the computational domain with an external layer that mimics waves moving into an infinite domain. PMLs are often used in situations where the default first-order, nonreflective boundary conditions would generate spurious and unwanted numerical reflections. Perfectly Matched Layers for the Pressure Acoustics, Transient Interface Beam width calculations for far-field plots.Improved ray acoustics formulation in 2D axisymmetric geometries.New interior Perforated plate condition.Biot-Allard model to include thermal and viscous losses in poroelastic wave simulations.2D axisymmetric formulation in the Convected Wave Equation interface.Improved formulation for the Slip boundary condition in Wall features for linearized Navier-Stokes and thermoviscous acoustics applications this works very efficiently when using iterative solvers.New and improved stabilization techniques for linearized Navier-Stokes analyses that are based on the Galerkin least squares (GLS) method.New physics features and options include: Ready-to-use suggested solver options for iterative solvers.
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Large models benefit from the following new features:
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Further improvements include an array of new physics features and options as well as new postprocessing tools. COMSOL Multiphysics ® version 5.3 introduces new Acoustics Module functionality that greatly improves time-domain simulations of acoustics phenomena and facilitates solving large acoustics-based models. debug ( 'Disconnecting from server.' ) self.
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modules = `server `, unless started with the option `multi` set to `'on'`, will shut down as soon as the client disconnects. The vendor strings are what we need to query the # `ModelUtil.hasProduct()` Java method.
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It thus maps vendor strings to # product names (add-on modules), except that we also shorten the names # somewhat (drop "Module" everywhere) and leave out the pointless # trademark symbols. It is # based on the table on page 40 of Comsol 5.6's Programming Reference # Manual, with the two columns swapped. config import option # configuration # Dependencies # import jpype # Java bridge import jpype.imports # Java object imports import platform # platform information import os # operating system from pathlib import Path # file-system paths from logging import getLogger # event logging import faulthandler # traceback dumps # Globals # log = getLogger ( _package_ ) # event log # Constants # The following look-up table is used by the `modules()` method. import discovery # back-end discovery from. """Provides the wrapper for a Comsol client instance.""" # Components # from.