See How Multiphysics Simulation Is Used in Research and Development


Engineers, researchers, and scientists across industries use multiphysics simulation to research and develop innovative product designs and processes. Find inspiration in technical papers and presentations they have presented at the COMSOL Conference. Browse the selection below or use the Quick Search tool to find a specific presentation or filter by application area.
View the COMSOL Conference 2018 Collection
Computational Fluid Dynamicsx

COMSOL Computational Fluid Dynamics for Microreactors Used in Volatile Organic Compounds Catalytic Elimination

M. Olea[1], S. Odiba[1], S. Hodgson[1], A. Adgar[1]
[1]School of Science and Engineering, Teesside University, Middlesbrough, United Kingdom

Volatile organic compounds (VOCs) are organic chemicals that will evaporate easily into the air at room temperature and contribute majorly to the formation of photochemical ozone. They are emitted as gases from certain solids and liquids in to the atmosphere and affect indoor and outdoor ... Read More

Numerical Study of Hyporheic Flow across Bedforms of Different Type

C. Gualtieri [1],
[1] University of Napoli Federico II, Department of Civil, Architectural and Environmental Engineering (DICEA), Napoli, Italy

Despite the traditional separation between the studies of surface water and groundwater flows, it has been long recognized that rivers and aquifers are strongly connected and that their interaction gives rise to a continuous exchange of water and solutes. The volume within the porous ... Read More

Thermal and Laminar-Fluidic Workbench for a metric Portion of a Gun

M. Brun
Nexter Systems, Versailles, France

Part of a 120mm gun has been represented as a perforated conic iron solid, surrounded by an annular screen. Inside the gun are limit conditions of isolation or thermal flux. The screen is described as a shell, receiving solar heat and exchanging with the outside atmosphere. It bears a ... Read More

The Simulation of Flow and Reduction of NO in a Heterogeneous Reactor.

O. Śliczniuk [1], B. Olejnik [1],
[1] Wrocław University of Technology, Faculty of Chemistry, Department of Chemical Engineering, Wrocław, Poland

Nitrogen oxides are one of the more dangerous ingredients contaminating the atmosphere. They are considered to be almost ten times more harmful than carbon monoxide, and sulfur dioxide several times. A whole range of photochemical reactions involving nitrogen oxides are responsible for ... Read More

Si-Infiltrated SiC Lattices in Elevated Temperatures: A Thermo-Mechanical Analysis

E. Rezaei [1],
[1] EPFL, Lugano, Switzerland

Si-infiltrated SiC porous composites exist in different forms composed of cores of cellular ceramic and skin plates of ceramic matrix composites. Due to high thermal conductivity, low coefficient of thermal expansion, high elastic modulus and high strength, the final product can be a ... Read More

COMSOL在金属氢化物贮氢罐传热传质模拟中的应用 new

李谦 [1], 林羲 [1], 朱琦 [2],
[1] 上海大学材料基因组工程研究院,上海,中国
[2] 上海大学机电工程与自动化学院,上海,中国

氢能燃烧值高且无污染,被认为是人类社会摆脱对化石能源依赖的理想能源。目前氢能应用的主要瓶颈是氢存储。而氢存储的主要方式中,金属氢化物因其安全性高,循环性能好的优点,得到广泛的研究。但由于金属氢化物吸放氢反应的热效应、粉末床的传热和传质特性较差等问题,贮氢罐的吸放氢速率下降,成为限制应用的主要因素。最近十几年,贮氢罐吸放氢过程的数值模拟及相关模型得到广泛的研究。通过数值模拟方法可以优化设计贮氢罐,以期满足实际应用中的需求,同时节约设计成本。本文面对贮氢罐的实际指标(吸氢速率1.5 L min-1),采用COMSOL软件中的多孔介质传热、地下流动以及数学模块 ... Read More

固体废弃物处置回转窑的高温结渣行为 new

胡万鹏, 罗义英 [1], 周佳伟 [2],
[1] 嘉兴学院 化学工程研究所, 建筑工程学院
[2] 嘉兴市固体废弃物处置中心

采用回转窑处理工业废弃物已有多年历史。工业废弃物里含有的有机物在高温下挥发、气化、裂解和燃烧,最后残留下含有硅、钙、铁等无机物,无机物构成了高温的具有一定粘度的炉渣。 高温炉渣夹杂着一定量的气泡。气泡可能从下列几个方面产生: 1)有机物裂解挥发产生的气体; 2)燃烧产生的气体; 3)夹带的气体; 4)液体在高温下的汽化。 从工业现场采集炉渣样品,获取了炉渣的微观结构。计算机模拟的过程揭示炉渣结构形成的过程。 研究表明,采用COMSOL Multiphysics流体力学模块和传递模块,二维非对称结构能够有效模拟高温炉渣的流动过程 ... Read More

交变压力波强化传热 new

张东伟 [1], 蒋二辉 [1], 周俊杰 [1],
[1] 郑州大学 化工与能源学院 热能系统节能技术与装备教育部工程研究中心

节能、高效、紧凑已经成为制冷空调行业的发展趋势,其中强化换热技术尤为关键。因此,本文采用COMSOL软件对微型错排管换热器进行了建立二维模型,基于瞬态模型,采用流动和传热模块进行有无交变压力波的数值模拟分析。结果发现随着交变压力波的添加大大增加了速度场、压力场及温度场的波动情况,使得管内工质边界层破坏降低了传热的热阻综合空化链式理论,交变压力波能够起到强化传热的作用,提高了制冷效率,有利于推动制冷行业的发展。 Read More

考虑流固耦合的煤层气压裂水平井数值模拟研究 new

路广 [1], 练章华 [1],
[1] 西南石油大学油气藏地质及开发工程国家重点实验室,四川 成都

煤层气开采过程中煤层所受应力、孔隙压力的变化以及气体的吸附解吸,会导致煤体骨架和孔隙体积发生变化,改变煤层的渗流能力。基于多孔弹性理论、渗流力学并考虑吸附变形,建立了煤层压裂水平井的物理模型,并建立了煤体变形和气体流动的全耦合数学模型,推导出了渗透率的动态变化模型。利用数值分析软件Comsol Multiphysics对煤层气的开发特征及规律进行了数值模拟,最终实现对模型中关键参数的敏感性和压裂裂缝参数的影响进行分析。 Read More

城市街道峡谷中建筑屋顶形状对城市微气候环境影响 new

唐洁 [1], 张双喜 [1],
[1] 武汉大学测绘学院

本文以实际生活中常见的4种屋顶形状的建筑为研究对象,使用COMSOL MULTIPHYCIS 5.3a软件构建了一个二维数值模型,模拟了等高上斜屋顶、下斜屋顶、三角形屋顶、平屋顶筑物屋顶形状对街区峡谷高宽比W/H=1的城市街道峡谷流场以及温度分布影响,同时该模型加载了太阳辐射模块,考虑了建筑表面对表面的辐射效应,模拟了不同太阳辐射角下城市街道峡谷的风速以及温度分布.结果表明等高建筑物下,在不同辐射角度下峡谷内温度分布不同,但背风面容易发生热量的累积,而下斜屋顶更有利于城市街道峡谷的扩散,上斜屋顶更加容易导致热量的累积。这可以为城市规划师和设计师提供了一些建议与想法 ... Read More