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COMSOL Multiphysics 案例库模型来自广泛的应用领域,包括电气、机械、流体和化工等行业。您可以下载现成即可使用的模型,以及详细的建模步骤说明,作为您建模工作的起点。请使用“快速搜索”查找与您的专业领域相关的模型,并登录或创建一个与有效的 COMSOL 许可证相关联的 COMSOL Access 帐户,下载模型文件。

Cyclic Voltammetry at a Macroelectrode in 1D

Cyclic voltammetry is a common analytical electrochemical technique, where the potential at a working electrode is swept over a range and back again while the current is recorded. The current-voltage waveform, referred to as a voltammogram, provides information about the reactivity and mass transport properties of an electrolyte. For large electrodes, the model is simplified to a 1D geometry by ...

Electrochemical Impedance Spectroscopy

Electrochemical impedance spectroscopy (EIS) is a common technique in which a small oscillating perturbation in cell potential is applied to an electrochemical system so as to interrogate the kinetic and transport properties. The Electroanalysis interface is used with a frequency domain study to simulate EIS for a range of electrode reaction rates. Nyquist and Bode plots illustrate the transition ...

Copper Deposition in a Trench

This model demonstrates the use of moving meshes in the application of copper electrodeposition on circuit boards. In these environments, the presence of cavities or 'trenches' are apparent. The model makes use of the Tertiary, Nernst-Planck interface for electrodeposition to keep track of the deformation of the mesh. Furthermore, electrochemical reaction kinetics through use of the ...

Decorative Plating

Tutorial model of electroplating. The model uses secondary current distribution with full Butler-Volmer kinetics for both anode and cathode. The thickness of the deposited layer at the cathode is computed as well as the pattern caused by dissolution of the anode surface.

Voltammetry at a Microdisk Electrode

Voltammetry is modeled at a microelectrode of 10um radius. In this common analytical electrochemistry technique, the potential at a working electrode is swept up and down and the current is recorded. The current-voltage waveform ("voltammogram") gives information about the reactivity and mass transport properties of the analyte. Microelectrodes are popular in electroanalysis because they ...

Rotating Cylinder Hull Cell

Rotating Cylinder hull cells are an important experimental tool in electroplating and electrodeposition and are used for the measurement of non-uniform current distribution, mass transport and throwing power of plating baths. The model reproduces the results for a commercially available cell (RotaHull(R)) as published in paper [1]. In particular, it investigates the primary, secondary and ...

Orange Battery

This tutorial example models the currents and the concentration of dissolved metal ions in a battery (corrosion cell) made from an orange and two metal nails. This type of battery is commonly used in chemistry lessons. Instead of an orange, lemons or potatoes can also be used.

Electrochemical Machining of a Micro Bore

For several high-precision applications, especially in hydraulic systems and fuel injectors, micro bores are needed. In most cases the shape of the injection hole, especially the edge rounding, has a significant influence on the atomization of fluids and therefore on the combustion process. Usually these micro bores are machined by electrical discharge machining (EDM). Due to the process ...

Secondary Current Distribution in a Zinc Electrowinning Cell

This is a model of the secondary current distribution in a zinc electrowinning cell. The model investigates the impact on the current distribution when changing the electrode alignment in a parametric study. The geometry is in 2D.

Electrodeposition of an Inductor Coil

This example models the deposition of an inductor coil in 3D. The geometry includes the extrusion of the deposition pattern into an isolating photoresist mask, and a diffusion layer on top of the photoresist. The mass transfer of copper ions in the electrolyte has a major impact on the deposition kinetics, resulting in higher deposition rates in the outer parts of the deposition pattern. The ...

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