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
Introduction Self-heating behaviour of dust accumulations is a multiphysics field coupled heat and mass transfer in the porous media. A typical experimental apparatus with a hot storage oven and mesh wire baskets has been taken as the study object. The influence of gas flow velocity, ... Per saperne di più
This paper presents an application of COMSOL Multiphysics® software in the study of the temperature distribution of a 5kVA three-phase air-cooled transformer. A 3D, steady state model was utilized on the simulations. The interface with the surrounding air was modeled by Newton's Law of ... Per saperne di più
No processo Kraft a madeira é reduzida a uma massa fibrosa. Neste processo são rompidas as ligações entre as estruturas da madeira separando as fibras. Esta operação, denominada de polpação, é realizada em um equipamento denominado de digestor. Este trabalho analisa o comportamento ... Per saperne di più
Adsorption heat exchangers (AdHXs) are important components in adsorption heat pumps and chillers, a primary energy efficient source of heating and cooling. Due to availability and established inexpensive manufacturing fin-and-tube type heat exchangers with beds of adsorption pellets in ... Per saperne di più
Thermoelectric sensors, which are capable to convert temperature gradients into electrical signals, hold promise for use in wearable body-temperature monitors and self-powered electronic devices. However, traditional flexible thermoelectric devices constructed with organic materials have ... Per saperne di più
随着大规模集成电路的发展，大尺寸电子级直拉单晶硅的需求与日俱增，而硅片尺寸增大的同时，氧相关缺陷带来的问题更加凸显。硅片中的氧相关缺陷有利有弊，因此直拉法生长单晶硅中的氧含量控制十分重要。本文基于COMSOL Multiphysics对12英寸电子级直拉单晶硅生长过程进行数值模拟分析，研究直拉单晶硅在不同凝固阶段下，晶体与熔体中氧浓度的变化，并计算出不同凝固阶段下氧在晶体和熔体两相中的浓度分布。通过考虑水冷屏，增加固液界面处的温度梯度，进而根据Voronkov理论计算出晶体中微缺陷区与“完美晶体区”。基于该模型，比较不同直径的坩埚对生长12寸直拉单晶硅的影响。结果表明 ... Per saperne di più
Resistive random access Memory (RRAM) is a non-volatile memory that operates by switching resistance between the formation (ON) and the rupture (OFF) of the conductive filaments (CF), representing the binary states of logic "0" and "1". RRAM is considered one of the most promising ... Per saperne di più
The high-temperature superconducting magnet (HTS) is one of the core technologies of a superconducting maglev. The effects of multiphysics fields including electromagnetic, mechanical, and thermal should be taken into consideration in design. Traditional design methods rely on the ... Per saperne di più
锂离子电池的安全长寿命运行离不开高效的热管理系统，其中浸没式液冷热管理系统的散热功率较大同时能实现电池组较高的温度一致性，是目前极具发展潜力的热管理方式。本研究利用COMSOL Multiphysics软件中的固体与流体传热模块和电池中的集总电池模块，并结合非等温流动和电化学热两个热多物理场，建立了浸没式液冷热管理系统的仿真模型，综合比较了三种浸没式液冷方式的散热能力，进一步通过COMSOL中的参数化扫描等功能研究探究了出入口位置、电池间距、冷却液热特性对浸没式液冷散热特性的影响。结果分析中采用了COMSOL丰富的后处理功能 ... Per saperne di più
本工作的主要内容是探究软包电池在充放电循环中由电池自身产热导致的温度分布以及温度对电化学反应速率的影响。模型中的电池传热模型由八个尺寸为1cm×1cm×180μm的电池微元组成，每个电池微元被视为一个均匀热源，使用COMSOL Multiphysics中的固体传热模块。电化学模型使用COMSOL Multiphysics中的电池模块，通过P2D模型计算电池的充放电过程以及反应热。每一个P2D模型对应传热模型中的一个电池微元，将电池的反应热视为电池微元的单位体积产热量。在三维传热模型的每一个电池微元中植入一个域探针，用来测量每个电池元在充放电过程中每一个时刻的平均温度 ... Per saperne di più