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错流式换热器

本案例求解一个用不锈钢制成的微型错流式换热器中的流体流动和传热。这种换热器常见于片上实验室设备,以及微型燃料电池。模型中同时考虑了对流和热传导。

皮肤癌检测用圆锥形介电探针

本模型复用低功率 35 GHz Ka 波段毫米波及其对湿气的反射率来实现非侵入性癌症诊断。由于皮肤癌包含的湿气多于健康皮肤,在这个频段会产生更强的反射。因此探针可以检测到癌症部位的异常 S 参数。同时还可以实现皮肤的温度变化和坏死组织分数的分析。

水中的浮力

本案例研究充满水的带两个竖直平板边界的腔体中的稳态自然对流。为了产生对流,两块板加热到不同温度,得到介于层流和湍流之间的过渡流效果。

管-壳热交换

在此模型中,用户可以研究管-壳的热交换过程。k-ε 湍流模型用来模拟完全的湍流流动。

Natural convection in a closed cavity with mass conservation

Only fully compressible flow can guarantee the mass conservation in time in a closed cavity where the temperature increases. This is a simple proof of concept using the "gravity" option available in V5.2A.

Flat Heat Pipe

Heat pipes are used in a wide range of applications for efficient cooling, for example in microelectronic systems, computer internals, and for large ...

热迁移

本案例模型验证水平放置的化学气相沉积反应器中的粒子热迁移。可由粒子所受的热迁移力求出接受器上方的无粒子区。无粒子区的大小由接受器的温度决定。

本案例模型需要 CFD 模块,传热模块,以及粒子追踪模块。

Modeling of Material Heating via the Beer-Lambert Law

This example exemplifies how to model the Beer-Lambert law using the core functionality of COMSOL Multiphysics. A more detailed description of the phenomenon and the modeling process can be seen in the blog post "[Modeling Laser-Material Interactions with the Beer-Lambert Law](https://www.comsol.com/blogs/modeling-laser-material-interactions-with-the-beer-lambert-law/)".

Plate Heat Exchanger

The model has its emphasis on heat transport in a very small heat exchanger that is commonly used in the field of microelectromechanical systems ...

Heat and Moisture in Building Material

The model is defined as a benchmark case in norm 15026:2007 annex A. The purpose of the model is to calculate the temperature and moisture profiles at different times after a change in the external conditions (temperature and relative humidity) inside a wall material (kind of concrete). It shows how to use the Heat and Moisture Transport interface.