アプリケーションギャラリ

A tweeter is a high frequency driver used in loudspeaker systems. An ideal tweeter will produce a constant sound pressure level at a given distance in front of the driver independently of frequency, that is, a flat response. Ideally the tweeter will also, to a certain degree, maintain ... 詳細を見る

蓄熱ユニットは, 太陽熱, 地熱, または廃熱源からの熱エネルギーを蓄積するために使用されます. 最もシンプルなユニットは, 家庭でよく見られる水タンクで構成され, 太陽エネルギーを検知可能熱として蓄えます. これらのタンクの熱容量は潜熱を蓄えることでさらに増加し, 潜熱蓄熱 (LHS) ユニットとして利用されます. 通常, LHS タンクには, 相変化物質としてパラフィンが充填された球状カプセルが内蔵されています. この例では, 充填ベッド蓄熱タンク内の流れをモデル化し, 相変化を伴う熱伝達と LHS ユニットへの充填時の局所的な熱非平衡の影響を考慮しています. 詳細を見る

Large lithium-ion batteries are widely deployed in electric vehicles and for stationary energy storage applications. In the (stacked) pouch battery cell design, all current exits the cell on the cell "tabs", and as the cell size and power increase, the voltage gradients in the highly ... 詳細を見る

This model shows how to compute an array of borehole heat exchangers (BHEs) for shallow geothermal energy production. The BHEs are simplified as line heat sinks with a uniform heat extraction rate. The array is embedded into a layered subsurface model with groundwater flow in one of the ... 詳細を見る

This example shows how to set up multiple sandwiched thin layers with different thermal conductivities in two different ways. First, the composite is modeled as a 3D object. In the second approach the Thin Layer boundary condition with the thermally thick option is used to avoid ... 詳細を見る

Concrete structures almost always contain reinforcements in the shape of steel bars ("rebars"). In COMSOL, rebars can be modeled either individually by adding a Truss interface to the Solid interface used for the concrete or using the Fiber subfeature to model their global effect. In ... 詳細を見る

In this example, a torque is applied to the inner edge of a circular annulus-shaped membrane while the outer edge is fixed, resulting in membrane wrinkling. The wrinkling membrane model avoids the equilibrium instability that would be produced by the compressive stresses. The effect of ... 詳細を見る

This model calculates the DC characteristics of a simple MOSFET. The drain current versus gate voltage characteristics are first computed in order to determine the threshold voltage for the device. Then the drain current vs drain voltage characteristics are computed for several gate ... 詳細を見る

This example demonstrates how to model phase transition by a moving boundary interface according to the Stefan problem. A square cavity containing both solid and liquid tin is submitted to a temperature difference between left and right boundaries. Fluid and solid parts are solved in ... 詳細を見る

This example demonstrates how to import a bitmap which can be used to simulate an image using ray tracing. The example is based on the Double Gauss Lens tutorial from the Ray Optics Module Application Library. The first study has been modified so that the Spot Diagram "auto-focus" tool ... 詳細を見る