アプリケーションギャラリ

この例では, 水で満たされた貯水池の上に置かれた細い垂直シリンダーを調べます. 空気と水の界面の壁面接着と表面張力により, 水は流路を通って上昇します. 表面張力と壁面接着力は, MEMS デバイスのマイクロ流路を通じて流体を輸送したり, マイクロピペットを使用して少量の流体を測定, 輸送, 配置したりするためによく使用されます. 多孔質媒体を通る多相流や固体壁上の液滴も, 壁面接着力と表面張力が流れのダイナミクスに強く影響する例です. 壁面の接着力を正しくモデル化するには, 境界条件の扱いが重要です. 壁面の速度をゼロに固定すると, ... 詳細を見る

An ultrasonic standing wave levitator, also called acoustic levitator, is a device used for levitating fluid and solid particles in an acoustic field. The standing acoustic waves exert an acoustic radiation force on the particles. The force is a second order effect and stems from a ... 詳細を見る

A Gaussian electromagnetic wave is incident on a dense array of very thin wires (or rods). The distance between the rods and, thus, the rod diameter is much smaller than the wavelength. Under these circumstances, the rod array does not function as a diffraction grating (see the Plasmonic ... 詳細を見る

小型加熱回路は, さまざまな用途で使用されています. たとえば, 製造プロセスでは, 反応性流体を加熱します. このチュートリアルの例のデバイスは, ガラス板に堆積された電気抵抗層で構成されています. 回路に電圧が加えられると, この層によってジュール熱が発生し, 構造が変形します. 層の特性によって, 生成される熱量が決まります. このマルチフィジックスの例では, 加熱回路デバイスの電気熱生成, 熱伝達, 機械的応力と変形をシミュレートします. このモデルでは, 伝熱 (固体) インターフェースを, 電流 (積層シェル) ... 詳細を見る

Vibration and noise in washing machines, due to the non-uniform distribution of clothes in the barrel, is a common problem worth studying and optimizing for. This model simulates a multibody dynamics model of a horizontal-axis portable washing machine. An eigenfrequency analysis is ... 詳細を見る

Many trucks are equipped with cranes for load handling. Such cranes have a number of hydraulic cylinders, controlling the motion, and several mechanisms. The cylinders and mechanisms that make up the crane are subjected to large forces when handling heavy loads. In order to determine ... 詳細を見る

In this tutorial, the heat and mass transport equations are coupled to laminar flow in order to model exothermic reactions in a parallel plate reactor. It exemplifies how you can use COMSOL Multiphysics to systematically set up and solve increasingly sophisticated models using predefined ... 詳細を見る

This tutorial shows how you can use the Electromechanics interface in COMSOL's MEMS Module to model Electrostriction. Electrostrictive materials (e.g. PMN-PT) exhibit nonlinear strain as a function of electric field. This 2D axisymmetry model uses a parametric sweep of voltage to ... 詳細を見る

This tutorial model solves for an inductively coupled plasma reactor in a mixture of argon/oxygen. The model computes the fluid flow and gas heating. Important aspects and strategies for modeling electronegative discharges are discussed. 詳細を見る

In this model you study the force-deflection relation of a car door seal made from a soft rubber material. The model uses a hyperelastic material model together with formulations that can account for the large deformations and contact conditions. 詳細を見る