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 2024 Collection
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 ... Read More
对锂离子电池进行准确建模有利于更好的进行电池设计和电池管理。目前对电池电化学模型的建立主要是基于传统的P2D理论，将活性颗粒假设为均匀分布的球形，使用bruggman关系式近似计算固液相的有效传输参数并忽略了粒径和孔隙率在电极内的异质性分布。在小倍率充放电条件下由于锂离子浓度梯度较小，所以均质化模型可以准确表达电池的内外特性；然而在大倍率条件下，厚度方向上复杂异质性的孔隙限制了锂离子的传输，特别是对于厚电极。此时均质化模型往往低估了电池极化，导致仿真与实验结果误差大，模型不准确。为了充分考虑电极结构的异质性，本研究在传统P2D模型的理论框架下，将电极厚度方向分为多层 ... Read More
随着锂离子电池能量密度的不断提高，电池热安全问题日趋严峻。本研究基于电池热失控反应动力学模型和相变传热模型，结合电池与复合相变材料（compose phase change materail CPCM: paraffin/ expanded graphite PA/EG）间的传热规律，建立了一个二维数值计算模型，利用COMSOL Multiphysics软件进行多物理场建模与求解（图1）。首先，通过拟合产热率与温度变化的关系，构建了电池热失控模型。模型通过调整CPCM的物性参数（相变焓与导热系数），探索其对热失控传播的影响。为了确保计算精度，本研究进行了网格无关性验证 ... Read More
The low-temperature electrochemical conversion of CO₂ to ethylene offers significant potential for reducing the chemical industry’s reliance on fossil fuels. Despite recent advancements, the key performance indicators—activity, selectivity, and durability—are insufficient for industrial ... Read More
为了证明膨胀对电池厚度变化的影响，传统p2d模型耦合移动边界法新建立了一个模型。对复合材料的比例进行了详细分类，以准确分析两种材料对容量的贡献。此外，还研究了电极设计（如活性层厚度和负极孔隙率）以及工作条件对电池电化学性能和厚度变化的影响。当硅含量增加并改变电极结构时，容量贡献率从 85% 增加到 92%。当孔隙率从 40% 增加到 60% 以及负极活性层厚度从 55 μm 增加到 85 μm 时，容量利用率分别从 58% 到 79% 和从 68% 到 59% 不等。在速率测试中，当速率从 0.5 C 变化到 2 C 时，电池厚度变化从 2.49 μm 减小到 1.56 ... Read More
In the development of advanced welding torches, a significant challenge lies in optimizing design and performance while minimizing costs and environmental impact. Traditionally, this has involved extensive physical testing, which is both time-consuming and resource-intensive. To address ... Read More
Individual batteries have their own operational temperature ranges, which shall be respected to avoid both damaging of the cells and shortening of the cycle life. In terms of the Li-Ion cells, many of them do not function well at higher temperatures. Therefore, a better understanding of ... Read More
Battery grids are critical system used in automobile, renewable energy, medical devices and mobile phones. Research efforts are directed to increase energy density, longevity and reduce the cost. This paper is related to computational optimisation of lead acid battery for efficiency and ... Read More
The future development of electric vehicles is now strictly linked with their batteries. In parallel of the actual research focused on the development of new materials and increase their performances in terms of energy, power, cost, durability and weight, it is necessary to develop ... Read More
COMSOL Multiphysics was used to simulate the heat flux from battery cells via conjugate heat transfer physics which consist of laminar flow and heat transfer in solids and fluids. Laminar flow function was used to simulate natural convection of air within the sealed enclosure. Heat ... Read More