C. Karl, C. Slater, M. Strangwood, K. Tank, S. O'Connor
University of Birmingham, Birmingham, UK
Strip Tinning Ltd, Birmingham, UK
Solders are typically used to join similar or dissimilar metals, referred to as substrates. In some cases solders are also used to join completely different classes of materials. For example, a joint between copper busbar and silicon solar cell represents a set of dissimilar substrates. In the formation of a solder-substrate couple, the system must have been subjected to at least a single ...
Two Step Study of Flow in an Industrial Pulp Screen, Solved with the COMSOL Multiphysics® Mixer Module - new
Wetind Technology AB, Alnö, Sweden
An industrial pulp screen is investigated. The dilute pulp is pumped through a screen barrier. In order to avoid the fiber network to plug, it is necessary to 1) fluidize the shear thinning pulp 2) expose the barrier with plug releasing pressure pulses. This work involves a 2-step study. Step 1: The full screen flow is simulated using Mixer Module Frozen Rotor k-. Essential pressure field ...
M. Higginson-Rollins, C. Crawford
Department of Electrical & Computer Engineering, University of Kentucky, Lexington, KY, USA
Department of Physics & Astronomy, University of Kentucky, Lexington, KY, USA
The traditionally magnetic design process involves guessing at a reasonable conductor geometry, using finite element analysis (FEA) software to calculate the resulting fields, and modifying the configuration iteratively to reach an acceptable solution. Taking the opposite approach, we developed a method of calculating the conductor geometry as a function of the desired magnetic field. This ...
T. Cavalcanti, A. Lima, J. Neto
Universidade Federal de Campina Grande, Campina Grande, PB, Brasil
Introdução: A medição adequada de vazão de fluidos é de grande importância nos processos industriais, pois tem implicações diretas na qualidade, produtividade, segurança e eficiência dos processos. Assim, torna-se necessário compreendermos como os fluidos se comportam para baixas velocidades, podendo, dessa forma, projetar estruturas que possam trabalhar em uma faixa de operação mais larga ou ...
Faculty of Earth and Environmental Sciences, Chonnam National University, Gwangju, Republic of Korea
COMSOL Multiphysics® software has been used in computational geodynamics for years. Because very high pressure in the mantle even significantly compressed the mantle up to ~40%, it is crucial to consider the mantle compressibility in computational geodynamics. COMSOL Multiphysics allows consideration of mantle compressibility using the CFD Module and I benchmarked COMSOL Multiphysics using ...
K. Durga Prasad , S. V. S. Murty , V. K. Rai ,
 Physical Research Laboratory, Ahmedabad, India
The thermal behavior/heat flow of the Moon provides us an insight into its geophysical character and thermal evolution. The thermal behavior within the uppermost (top few meters) regolith layers is more complex due to their complex geometric, thermal and radiative properties. In order to have a better understanding of the phenomenon, the thermal behavior of the lunar surface at regional scales ...
F. F. Dall'Agnol 
 Universidade Federal de Santa Catarina, Blumenau, SC, Brasil
Graduado e doutor em Física pela USP de São Carlos. Foi professor colaborador pelo Departamento de Matemática na Universidade Federal de São Carlos e pelo Departamento de Física pela Universidade Estadual do Centro Oeste em Guarapuava. Foi pesquisador no Centro de Tecnologia da Informação Renato Archer, em Campinas, onde desenvolveu expertise em simulações computacionais com o uso do COMSOL ...
A. Koushki ,
 Rostock University, Rostock, Germany
Solder connections are one of the most essential parts of the PCBs. Despite many well-known scientific works that have been done about overlap solder interconnection properties, such as fracture, fatigue and reliability studies, little attention have been given to the investigation of the connection between effects of electrical properties and laboratory soldering shortages such as effects of ...
张博文 , 曹光 , 唐晓 
硫化氢是天然气中的有害成分，它的存在一方面降低了天然气中烃类气体的百分比例，使然气的工业价值降低，同时它极强的毒性和腐蚀性，威胁着钻探开发的每一个环节，常导致重大的安全事故。由于我国海上油气田资源丰富，急需一套完整的工艺及装备系统处理深、远海储藏天然气中的硫化氢，由于恶劣的海洋环境影响，需要优选出适应 FLNG 条件下的脱硫工艺、设计并优化 FLNG 脱硫反应器内部结构。经过研究，我们将络合铁脱硫工艺应用在自主研发的 FLNG 脱硫装置中。利用 COMSOL Multiphysics® 多物理场仿真软件的化学反应工程模块和反应流接口对自主研发的脱硫装置中的络合铁脱硫工艺过程进行仿真，通过建立图1中二维的脱硫装置图形，模拟了脱硫工艺中主要反应物及反应产物浓度随时间分布情况，图2、图3、图4分别为二价铁离子浓度、三价铁离子浓度及硫磺随时间变化在反应装置中分布情况，同时也对流体流动进行仿真 ...
Approximation of the Flow Field in Electrochemical Machining Incorporating Pressure Drop Calculation
R. Paul , M. Zinecker , M. Hackert-Oschätzchen , A. Schubert ,
 Professorship Micromanufacturing Technology, Chemnitz University of Technology, Chemnitz, Germany
Electrochemical Machining (ECM) is a non-conventional machining technology which allows for surface structuring and shaping of metallic workpieces with high accuracy and surface quality. The machining principle of ECM is electrolysis. Hence, the mechanical properties of the workpiece material do not directly influence the machining process. Thus, even very hard materials can be machined with ...