Sehen Sie, wie die Multiphysik-Simulation in Forschung und Entwicklung eingesetzt wird
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In this study, a 2-D model has been built using COMSOL Multiphysics® to analyze a triple coupled physics problem involving simultaneous gas diffusion, heat transfer, and structural mechanics in a pipe due to the flow of high-pressure carbon dioxide. The problem geometry and boundary ... Mehr lesen
A numerical analysis on transient three-dimensional temperature distribution in a semi-infinite solid, irradiated by a moving Gaussian laser beam, is carried out numerically by means of the code COMSOL Multiphysics. The investigated workpiece is simply a solid. A laser source is ... Mehr lesen
A TAP reactor is a fixed-bed catalytic reactor operated in pulse (transient) mode under very low pressures. It has become a very important tool in catalytic studies as it fills the material and pressure gaps existing between practical conditions and high vacuum – monocrystal techniques. ... Mehr lesen
Steam Reforming of Ethanol using a Catalytic Wall Reactor (CWR) was successfully studied using COMSOL Multiphysics. A mathematical model was used to describe the reactor performance in terms of the main variables and dimensionless groups. Simulations showed that at specified conditions ... Mehr lesen
焊接接头是管线工程的薄弱环节，制约着油气田的发展。传统的电化学方法在表征由焊缝、热影响区和母材等不同部分组成的、具有多界面、高度不均匀分布的电化学反应过程时存在一定的困难和局限性，导致焊接接头局部腐蚀演化过程的电化学机制目前仍不十分清楚。利用 COMSOL Multiphysics® 多物理场仿真软件的“腐蚀，二次电流”接口对不同焊缝宽度的模拟 X80 钢SMAW焊接接头在 CO2 饱和的 NACE 溶液中的电位及电流密度分布进行了仿真。结果表明，在本文研究条件下，模拟的 X80 钢 SMAW 焊接接头的焊缝和粗晶区作为腐蚀电偶对的主要阳极，腐蚀加速 ... Mehr lesen
In industrial countries, people spend most of their time indoors. Stringent heat-insulation measures in combination with deficient ventilation have a negative impact on indoor air quality [1]. Integration or retrofitting of a photocatalytic oxidation or PCO reactor into continuous flow ... Mehr lesen
Assessing the severity of the internal corrosion of structures is of paramount importance in the oil & gas industry. Modelling and simulation of this process proved to be key techniques to understand its mechanism and the main factors influencing its severity [1-4]. Considerable ... Mehr lesen
Hydrogen has great potential to be the fuel of the future through utilization in fuel cells, but it is rarely found naturally and must be produced in energy-intensive processes. Steam reforming, the process of heating natural gas and steam in the presence of a catalyst to drive a ... Mehr lesen
Reactive transport models (RTM) that couple physical and chemical processes are commonly used to solve a large variety of problems in the environmental industry. There are a series of codes designed to solve this kind of problems. However, their use requires typically much effort due to ... Mehr lesen
A fast, high-sensitivity detector is required for studies of environmentally relevant gases. Photoacoustic spectroscopy (PAS), an absorption spectroscopy technique in which absorption is detected as sound, is explored as a possible solution. A tuning-fork based PAS sensor is modeled ... Mehr lesen