アプリケーションギャラリ

This is a model of a simple thermoacoustic engine that includes a thermal stack to convert thermal energy to acoustic energy. The model is set up using two approaches: 1) Using a linear perturbation (acoustic) approaches solving the fluid motion with the Thermoviscous Acoustics, ... 詳細を見る

This model showcases how to solve for the scattered field when knowing the incident field for three different types of scatterer, i.e. an infinitely rigid one, a cavity and an elastic inclusion. This formulation can be useful when the scatterer is in the far-field of the source, such ... 詳細を見る

The dielectric shielding boundary condition is meant to approximate a thin layer of material with high relative permittivity compared to its surroundings. This boundary condition is available for electrostatic field modeling. This example compares the dielectric shielding boundary ... 詳細を見る

キャビティ上の流れと生成される音色のノイズは, バルブやその他のキャビティがある配管システムにおける典型的な流れノイズ源です. このチュートリアルモデルは, ダクトシステムにおけるキャビティ流れノイズの単純なケースを表しています. このモデルは, Lafon らの例に基づいて設定されています. このチュートリアルモデルは, 音響モジュールと CFD モジュールの機能を使用して, COMSOL Multiphysics® で流体誘起ノイズシミュレーションを実行する手順を示しています. LES 流れに使用されるメッシュ解像度は, ... 詳細を見る

A double-ridged horn antenna is popularly used in anechoic chambers to characterize an antenna under test (AUT), from S-band to Ku-band, due to its reliable performance in a wideband frequency range. This tutorial models a double-ridged horn antenna and computes the voltage standing wave ... 詳細を見る

This tutorial model demonstrates how to estimate the material parameters of a viscoplastic Bergstrom–Boyce model suitable for nonequilibrium modeling of rubber-like materials. The data used for parameter estimation consists of cyclic uniaxial tension and compression tests at two ... 詳細を見る

This tutorial shows how to solve the full time-dependent wave equation in dispersive media such as plasmas and semiconductors. The 2D TM in-plane wave model solves for the vector potential from the wave equation and for an auxiliary electric polarization density from an ordinary ... 詳細を見る

This model presents the flow noise generated by flow past the so-called tandem cylinder configuration. The test is part of the “First Workshop on Benchmark problems for Airframe Noise Computations”. The tutorial model shows the steps involved in a flow-induced noise simulation in COMSOL ... 詳細を見る

This tutorial drives a capacitively coupled plasma with an L-type matching network at high and low powers. At low power, where the harmonics in the current are low, prefect matching is obtained at the chosen power value. Sweeps over power, frequency, and pressure are performed and their ... 詳細を見る

このモデルは, 高レート充電中の角柱型電池の内部温度分布を計算する方法の例を示します. 電気化学は, 熱伝達モデルと結合した集中二電極モデルによって記述されます. 熱伝達モデルには, 集電体および端子におけるジュール熱の影響に加え, ゼリーロールにおける電気化学的加熱 (過電圧による) の寄与も考慮されています. ゼリーロールは, 電池層の構造と寸法を考慮した異方性特性を用いて記述されます. 詳細を見る