Consultez les proceedings de la Conference COMSOL 2024
Climate change is a short-term problem which can no longer be ignored and affects everything, from global food security to geopolitics and economics: extreme weather phenomena, falling crops yields, decrease of water availability, sea level rise, extinction of several animal species, are ... En savoir plus
The rise in atmospheric CO2 needs the development of efficient conversion technologies. CO2 reduction reaction (CO2RR) emerges as a compelling solution, offering the transformation of CO2 into more energetic compounds, such as fuels (hydrocarbons, alcohols, etc.) and valuable chemicals, ... En savoir plus
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 ... En savoir plus
A CO2 direct ocean capture system exploiting bipolar membrane (BPM) electrodialysis, gas-liquid contacter and pH-swing of the dissolved inorganic carbon species is designed for efficient and effective CO2 capture. COMSOL Multiphysics was used to study the BPM electrodialysis and CO2 ... En savoir plus
In our dynamic energy landscape, it is increasingly important to utilize energy efficiently and minimize waste. To achieve this, advancing our research beyond traditional battery storage, which has numerous limitations, is crucial. One promising solution is compressed gas energy storage. ... En savoir plus
光纤拉锥技术是一种广泛应用的光纤后处理手段，通过对光纤形状和光学性能的调整，可以制造各种光纤器件，进而拓展光纤在传感、通信和非线性光学等领域的应用。拉锥过程中，需将光纤加热至二氧化硅的玻璃化转变温度以上，使其由玻璃态转变为粘流态，并通过在加热区施加拉力实现光纤的形变。有效控制该过程中的温度场和力学应力场对实现高精度光纤拉锥至关重要。 本研究利用COMSOL Multiphysics的多物理场耦合能力，构建了一个综合考虑固体传热、层流和动网格的光纤拉锥仿真模型。通过模拟光纤在高温区的受热过程及粘流态下的变形行为，该模型能够真实再现拉锥过程中热源 ... En savoir plus
In this work, a 2.8x0.22 μm^2 silicon strip waveguide (n = 3.43 @4.234 μm) on a silica substrate (n = 1.38 @4.234 μm) and a superstrate with n = 1 was designed and evaluated through 2D (i.e., mode analysis), and 3D (i.e., wave propagation) analysis to strengthen the interaction between ... En savoir plus
Increasing energy demands in society have led to intensive fossil fuel usage, resulting in increasing carbon dioxide (CO2) emissions, one of the most significant greenhouse gases and major contributors to global warming. Considerable efforts have been made towards CO2 capture, storage, ... En savoir plus
The "Power to Gas" technology is a promising alternative for storing renewable electrical energy through energy carriers. This technology involves using surplus energy from renewable sources to obtain green hydrogen through water electrolysis. Since hydrogen storage and transportation ... En savoir plus
The chemisorption and absorption of CO2 bubbles have been extensively studied and modeled in literature. CO2 gas is converted into aqueous CO2, which produces OH-, HCO3- and CO32- - ions in the solution. In this study, a 3D CO2 bubble column is simulated using COMSOL Multiphysics, ... En savoir plus