アプリケーションギャラリには電気, 構造, 音響, 流体, 熱および化学分野に関連する COMSOL Multiphysics® チュートリアルおよびデモアプリファイルが用意されています. これらの例はチュートリアルモデルまたはデモアプリファイルとそれに付随する手順をダウンロードすることにより独自のシミュレーション作業の開始点として使用できます.
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次のモデルは, 流れてくる流体に対して直角に流路内に置かれた長い円筒を過ぎる非定常で非圧縮性の流れを調べます. 円筒は流れの中心からいくらかオフセットされており, 定常状態の対称的な流れを不安定にします. 周期的な流れのパターンが現れるのに必要なシミュレーション時間は予測が困難です. 重要な予測因子は, 円筒の直径に基づくレイノルズ数です. 値が 100 未満の低い場合, 流れは定常です. このシミュレーションでは, レイノルズ数は 100 に等しく, 発達したカルマン渦列が生じますが, 流れはまだ完全に乱流ではありません. 詳細を見る
In a lithium metal battery, lithium metal is deposited during charging on the negative electrode. Mass transport and ohmic effects in the electrolyte cause small protrusions on the metal surface to be subjected to accelerated growth during charging. In worst case scenarios, this leads to ... 詳細を見る
Zone electrophoresis (ZE) is an electrophoretic separation technique typically used for analyzing proteins, nucleic acids, and biopolymers. During the process, different species in a sample are transported in a continuous electrolyte buffer system, subject to a potential gradient. Due to ... 詳細を見る
Electrochemical supercapacitors feature relatively higher energy densities than conventional capacitors. With several advantages, such as fast charging, long charge–discharge cycles, and broad operating temperature ranges, electrochemical supercapacitors have found wide applications in ... 詳細を見る
This application illustrates how to model an electric machine, such as a generator, motor, or drive, by exploiting its sector symmetry to reduce the size of the problem. The machine being studied is a simplified electric generator in 3D, based on the geometry used in the generator_2d ... 詳細を見る
This model exemplifies the basic principles of crevice corrosion and how a time-dependent study can be used to simulate the electrode deformation. The model is in 2D and the polarization data for the corrosion reaction is taken from a paper by Absulsalam and others. The model and the ... 詳細を見る
The Shallow Water equations are frequently used for modeling both oceanographic and atmospheric fluid flow. Models of such systems lead to the prediction of areas eventually affected by pollution, coast erosion and polar ice-cap melting. Comprehensive modeling of such phenomena using ... 詳細を見る
This is a conceptual model illustrating how to couple fluid-structure interaction, heat transfer, and thermal expansion. A bimetallic strip in an air channel is heated so that it bends. After some time, an airflow with an inlet temperature which varies in time is introduced. As a ... 詳細を見る
In a cooling system, a microelectronic component has been identified as the critical link. Since the power is repeatedly switched on and off, the component is subjected to thermal cycling. As a results a crack grows through a solder joint and disconnects the chip from the printed circuit ... 詳細を見る
A magnetic brake consists of a permanent magnet, which induces currents in a rotating copper disk. The resulting eddy currents interact with the magnetic flux to produce Lorentz forces and subsequently a braking torque. This 3D problem is solved using a stationary formulation for the ... 詳細を見る