Sehen Sie, wie die Multiphysik-Simulation in Forschung und Entwicklung eingesetzt wird
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Sehen Sie sich die Kollektion für die COMSOL Conference 2024 an
Humanity is faced with an imminent energy crisis. The exponential growth of the human population and the consequential increase of the required energy on a global scale, the dramatic climate change and the exhaustibility of natural resources combined, force us to strive towards a ... Mehr lesen
能量存储技术是减少能量浪费和节约能源的最为有效的手段之一。热化学储能技术具备高功率、大容量和低损耗的特点，在实际应用中可近乎无损耗地进行跨季节性利用，上述优点使得热化学储能近年来吸引了国内外学者的广泛关注。热化学能存储过程涉及流动、传热、传质、反应多个物理过程，为了完成实验室级测试到工业级应用的推广，储能设备的仿真模拟是必不可少的一环。为了简化计算，目前几乎所有的数值研究都假设储能材料的孔隙率为均匀且定常的；但在实际的物理过程中，孔隙率与反应程度紧密相关并随时间和空间变化。本文通过推导建立孔隙率变化的热化学储能模型 ... Mehr lesen
Evaluation of J-integral in three dimensional bimodular stress field has been carried out for a cracked three point bend specimen having properties of nuclear grade graphite (2020). The additional area integral has an important role in J-integral. The stress dependent elasticity ... Mehr lesen
Fischer-Tropsch synthesis (FTS) is a highly exothermic polymerization reaction of syngas (CO+H2) in the presence of Fe/Co/Ru-based catalysts to produce a wide range of paraffins, olefins and oxygenates, often known as syncrude. Multi-Tubular Fixed Bed Reactors (MTFBR) and Slurry Bubble ... Mehr lesen
The municipal wastewater treatment in a sustainable context requires a smart technology in which an optimal combination of the ecological status and energy demand can be achieved. The integration of electron conductive materials into a traditionally constructed wetland (CW) has been ... Mehr lesen
Silicon carbide (SiC) single crystals are industrially produced by the physical vapor transport technique. Apart from the geometry of the growth setup, there are two main process parameters that can be controlled: temperature and pressure. To support the development of the process, ... Mehr lesen
熔盐堆是唯一一种以液态为燃料的反应堆，熔盐堆研究不同于其他反应堆。本文采用多物理场耦合方法模拟熔盐堆发生工况时熔盐堆中一些参数的变化[1-4]。我们将反应堆模型简化为一个石墨围成的空腔结构，如图[1a]。为简化计算采用二维轴对称图形，如图[1b]。分别采用流体流动接口中单向流中的湍流模式模拟熔盐流体流动、传热模块中流体传热模拟熔盐传热、传热模块中固体传热模拟石墨传热、稀质传递接口模拟反应堆中先驱核浓度、系数型偏微分方程模拟中子扩散。基于以上五个物理场耦合的情况下对一回路发生失流以及石墨发生膨胀两种工况下研究熔盐堆温度变化及先驱核浓度的变化 ... Mehr lesen
Rotating Magnetic Field Eddy current technique is a promising technique for inspection of flaws in metallic tubular components. Three primary coils, 120 degrees apart in space, are excited with three phase current source, by virtue, a rotating magnetic field polarised ... Mehr lesen
Wine quality is strongly dependent on the operation parameters of the production process. In batch or fed batch reactors, the rotating velocity should be carefully controlled to avoid cellular stress and ensure adequate mixing of the mixture. Moreover, precise control of substrates ... Mehr lesen
Stirred tanks are widely used in the pharmaceuticals, chemical and paint industries for variety of operations. The fractal impeller is an impeller having a novel design, developed by CSIR-National Chemical Laboratory, Pune, India. The power number of fractal impeller is relatively lower ... Mehr lesen