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
Spray drying is one of the most commonly used methods to produce a powder out of a liquid and is widely used in the food industry. During spray drying, the liquid is atomised into hot air and dried in the drying chamber within seconds to minutes. The residence time, which is the contact ... Per saperne di più
Abstract The standard diamond-shaped mesh spacers commonly used in spiral wound membrane elements results in non-ideal hydrodynamics that can lead to fouling, which ultimately reduces the flux of water through the membrane and the operational life of the unit. To address this ... Per saperne di più
Abstract: Line resolution, uniformity and focusing are the three (3) most important factors in the use of electron-beam lithography to form either high resolution masks or direct-write device etch patterns. This paper will present the observations and analyses made from a group of COMSOL ... Per saperne di più
For many decades Helium-3 (3He) and Argon gas filled detectors have been used for neutron and gamma detection. Detection requires the generation of electrons which can then be measured by electronic means. These electrons are generated either directly through gamma ionization of a gas ... Per saperne di più
Granular and powdered activated carbons have been widely used for purification/filtration in air and water as catalysts or organic adsorbents. To obtain mechanical filtration capacity and inorganic reduction performance, activated carbon can be formed as a block-shaped porous media, ... Per saperne di più
Soil pipes are large contiguous macropores that exist in soils or geological materials. These macropore features generally serve as conduits for rapid movement of water through soils or geological material, and are generally oriented nearly parallel to the land surface. Soil pipes are ... Per saperne di più
Microencapsulation-based drug delivery has paved the way for the next generation of drug carrier systems that can deliver a therapeutic agent in a programmable fashion. In this method, therapeutic agent is encapsulated within a microparticle and delivered through hypodermic needles to ... Per saperne di più
1100kV GIL应用于中国的苏通特高压输电工程，其额定电压水平世界最高。为了保证其绝缘可靠性，进行产品设计时，绝缘子附近设置了微粒陷阱，用于捕捉附近的异物微粒，降低绝缘子表面发生沿面闪络的几率。GIL内部绝缘结构形式和几何尺寸决定了电势梯度分布，微粒运动受自身重力、库仑力、电场梯度力、气体阻力及摩擦力的共同作用，运动规律复杂难测。本文采用COMSOL软件建立了金属微粒在1100kV GIL微粒陷阱附近的运动模型，利用粒子追踪模块获得了不同大小微粒在不同电压和不同初始位置的运动轨迹。通过分析微粒运动规律，指导制定GIL产品老练试验方案，增加了微粒陷阱的捕捉效果 ... Per saperne di più
细胞分离对于研究细胞性质和疾病的诊疗至关重要。利用倾斜角度声波声表面波驻波（TaSSAW）器件可以很好地实现粒子和细胞的分离。然而，目前缺乏一种系统的理论来分析TaSSAW装置中的粒子运动，和分离距离。在这篇文章中，我们利用理论推导和模拟仿真系统性地研究了粒子在TaSSAW中的运动情况。我们先通过理论分析，得到了粒子的两种运动模式的解析表达式，以及它们的阈值。然后利用COMSOL Multiphysics 对TaSSAW中的粒子声泳进行模拟，得到了的结果与理论分析相符合。我们先将声表面波器件的模型进行简化为二维。然后利用压力声学接口在频域求解了不同倾斜角度的声表面驻波场 ... Per saperne di più
在对以聚二甲基硅烷（PDMS）为腔道材料的声表面波（SAW）微流控器件建模时，通常采用简化模型来描述PDMS的声学特性。本文以声表面驻波（SSAW）微流控芯片为例，通过三种不同的方式对PDMS腔体建模，利用有限元方法分析了腔体内部的物理场和腔体内粒子的运动过程。对PDMS腔体建模时，分别采用COMSOL中的固体力学、压力声学和声阻抗边界三种方式分析PDMS腔体对微流腔内声场和流场的影响。从结果中我们发现，PDMS中的横波并不会显著影响腔体内的声场和声辐射力场，但会对声流产生较为明显的影响，进而影响受声场和流场作用的粒子运动轨迹 ... Per saperne di più