研究開発におけるマルチフィジックスシミュレーションの具体例
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COMSOL Conference 2024 論文集を見る
Chemical vapor deposition (CVD) is a promising effective method for synthesis of graphene films. CVD graphene film is obtained from hydrocarbon species such as CH4 through complex catalytic chemical reactions on the surface of the catalyst. Therefore, studying the catalytic reaction ... 詳細を見る
Introduction Among the advanced oxidation processes (AOPs) for removal of volatile organic compounds (VOCs) from air, photocatalytic oxidation (PCO) is considered a very promising technology [1,2]. PCO can achieve mineralization of harmful VOCs to CO2 and H2O using only UV light [3]. A ... 詳細を見る
The aim of present work is to present and calibrate a new mechanistic model that includes physical and biokinetic processes to reproduce the algae growth in photobioreactor or ponds during long-term scenarios. A COMSOL Multiphysics® model is used to implement the microalgae processes ... 詳細を見る
I introduce a model of fluidized reactor which, in presence of heterogeneous platinum-based catalyst, decomposes liquid formic acid producing gaseous mixture of carbon dioxide and hydrogen as the product. I treat the physical system as a (Class II) mixture of four constituents - namely ... 詳細を見る
The mathematical model is closely related to the development of a novel drying method for high viscous and sticky materials. The foamed state facilitates diffusive moisture transport and therefore accelerating the drying process. Moreover the dried porous material can be easily converted ... 詳細を見る
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, ... 詳細を見る
This study deals with the 3D modeling of a light photocatalytic textile. This process aims to decontaminate industrial effluents such as water with pesticides. The present study describes the implementation of a reactive transport model in a computational fluid dynamics model developed ... 詳細を見る
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 ... 詳細を見る
新能源汽车电池热失控特征极大关系着电池的安全边界,本文通过建立单体NCM电池的一维产气反应动力学耦合三维传热几何仿真模型,对电池热失控期间的温度,膨胀力特征进行分析。在COMSOL Multiphysics中先依据电池尺寸建立电池三维几何模型,电池结构为长方体热源,不额外考虑电池极耳的发热功率,将电池视作导热系数各向同性的集总热模型,之后在几何模型的基础上建立一维副反应动力学模型,利用偏微分方程接口模块实现实现电池热失控副反应产热量的计算,最后利用固体传热模块完成电池温度与产热的耦合,并输出相对应的膨胀力数值。通过完成验证的热失控模型,针对热滥用情况中的SOC ... 詳細を見る
在可再生能源需求不断增长的背景下,本研究探索了一种新型的湿气发电(Moisture Electricity Generation, MEG)技术。这项技术利用地球上最丰富的资源——水,为环境友好型能源泛在获取开辟了新途径。然而,MEG器件内部的理化过程相当复杂,难以直观分析【2】。为了克服这一挑战,本研究采用了COMSOL Multiphysics®软件进行模拟仿真,以量化阐释这些复杂的动态理化过程。 集成仿真模型结合了多孔介质流、化学反应工程和电磁模块,通过耦合Richards方程、Nernst-Planck方程和Poisson方程 ... 詳細を見る
