Scopri come la simulazione multifisica viene utilizzata per ricerca e sviluppo
In questa sezione troverete i lavori presentati alle Conferenze mondiali COMSOL. Le presentazioni descrivono ricerche e prodotti innovativi progettati con COMSOL Multiphysics da colleghi di tutto il mondo. I temi delle ricerche presentate abbracciano un'ampia gamma di settori produttivi e aree applicative, in ambito elettrico, meccanico, fluidodinamico e chimico. Lo strumento di Ricerca Rapida vi permetterà di trovare le presentazioni che si riferiscono all'area di vostro interesse.
Visualizza gli articoli presentati alla COMSOL Conference 2020
随着高压直流输电技术的发展，直流气体绝缘金属封闭开关设备（GIS）因其具有占地面积小、可靠性高、维护少等优点已得到越来越多的关注。相比交流GIS，直流GIS绝缘介质表面存在严重的表面电荷积聚问题，导致其沿面闪络特性下降，制约着直流开关设备的工程应用。为了研究直流 GIS 绝缘子绝缘特性，采用 COMSOL 分析软件，基于有限元理论，在考虑绝缘介质阻容模型的基础上，建立了直流 GIS 柱式绝缘子的电场模型，根据此模型，研究了绝缘介质不同材料特性、加压等级在交直流场下的分布规律，并进行了试验验证，为高压开关设备直流绝缘设计优化提供了技术支撑和理论依据。 Per saperne di più
引言：随着水平井和大斜度井的增多，随钻测井（LWD）技术越来越重要。随钻电磁波电阻率测井在随钻测井中应用最为广泛。在国外，随钻电磁波电阻率测井方法已经成为一种成熟的测井技术，但我国仍处于研究发展阶段。20 世纪 90 年代，大庆成功地研制出2MHz电磁波电阻率测井仪器。本世纪，中油测井成功引进并研制出了随钻电磁波电阻率测井仪WPR。仪器仿真对国内引进该仪器进行生产以及实际测井资料处理解释具有指导意义。本文借助COMSOL Multiphysics® 仿真平台，建立了二维轴对称模型。模型分为三层和多层，选择 AC/DC 模块中的磁场。通过 LiveLink for ... Per saperne di più
在振动仿真中，网格量永远是考验工程师的重要问题，虽然计算机性能的提高可以解决一部分计算量问题，但这远远不够。一种有效的方式是进行二维计算，COMSOL Multiphysics® 中也有二维轴对称的几何维度，这极大地方便解决轴对称目标问题。但是由于空间维度的限制，只有当研究目标和其激励均为轴对称的情况才可以应用，这极大地限制了二维轴对称的应用。 在研究中，提出了一种针对二维轴对称目标的算法，以水下弹性结构声散射为例，建立了轴对称目标非轴对称载荷的模型。将需要三维建模计算的模型改为仅需要建立二维轴对称模型即可，大大降低了计算量。 在 COMSOL 的应用中 ... Per saperne di più
Debris, micro particles produced by discharges, stay in the gap area during deep hole machining by micro EDM, cause short-circuits and abnormal discharges, finally make machining impossible. Although a deep hole can be processed by using the tool with grooves on the surface, the effect ... Per saperne di più
Microstructures such as holes, grooves, microchannels, and surface texture are essential geometric profiles for micro-components. Burs can cause interference, affect the positioning of processing, and influence the quality and surface appearance of the structure. Electrochemical ... Per saperne di più
Iodine absorber is a widely used purification equipment for purifying air in a nuclear power plant. In China, the common type is Ⅱ iodine absorber. Impregnated activated carbon is the main absorber within the iodine absorber. Because of the decays exothermic of radioactive iodine, heat ... Per saperne di più
This presentation describes the numerical simulation model where gas/liquid two-phase porous media flow equations are coupled to multicomponent gas-phase transport and water-phase transport equations in COMSOL Multiphysics. This is done in order to predict the landfill stabilization ... Per saperne di più
For the successful exploitation of microdevices such as microsensors, development of micro-power sources is strongly required. In this view, microbatteries and microfuel cells have been developed. Here the concept of on-chip fuel cells, which consist of all the components necessary for ... Per saperne di più
High magnetic field research has yielded fruitful results. Since 1913, associated with the magnetic field there are 19 Nobel Prizes, including a prize for medicine, five chemistry prizes, and 13 physics prizes. In recent years, the international community under the conditions of strong ... Per saperne di più
The traveling wave ultrasonic vibration disks for dispersion of particles were designed by using of FEM analysis. The vibration disks are required specific vibration pattern, which contains three nodal lines. The vibration disk thickness was calculated to be matched the resonance ... Per saperne di più