Here you will find presentations given at COMSOL Conferences around the globe. The presentations explore the innovative research and products designed by your peers using COMSOL Multiphysics. Research topics span a wide array of industries and application areas, including the electrical, mechanical, fluid, and chemical disciplines. Use the Quick Search to find presentations pertaining to your application area.

Prediction of Temperature and Thermal Stress in Plasma Sprayed Coatings - new

M. Raja[1] , G. Hiremath[1], K. Ramachandran[1], P.V.A. Padmanabhan[2], T.K. Thiyagarajan[2]
[1]Karunya University, Coimbatore, Tamil Nadu, India
[2]Bhabha Atomic Research Centre, Mumbai, Maharashtra, India

Plasma spraying is one of the prominent technologies for wear, corrosion and high temperature resistant coatings. The coating quality is very important to increase the performance of the components as well as to protect the outer surface of the component from external environment. The coating quality characteristics depend on many plasma process parameters. Among these parameters, distribution ...

Determination of Fundamental Frequency of a Thin Rectangular Perforated Plate using COMSOL Multiphysics

S. V. N. B. Prasad, and B. Raghavendra
BITS PILANI K K BIRLA
GOA CAMPUS, India

COMSOL Multiphysics 4.0 is being used to simulate the free vibrations of a plate. The results obtained by simulation in COMSOL are in close proximity to that found by Fast Fourier Transform analyzer and analytical method. As of now the vibration analysis of thin rectangular plates with perforations in rectangular pattern has been carried out. The study of vibration analysis of thin ...

Elastoplastic Deformation in a Wedge-Shaped Plate Caused by a Subducting Seamount

M. Ding[1], J. Lin[2]
[1]MIT/WHOI Joint Program in Oceanography, Cambridge, MA, USA
[2]Woods Hole Oceanographic Institution, Woods Hole, MA, USA

We used COMSOL Multiphysics 4.3 to simulate the 2D elastoplastic deformation and plastic strain in a wedge-shaped plate above a subducting interface. The modeling results reveal that a pair of conjugate normal faults would first appear in the thinner part of the plate. Subsequently, a second pair of conjugate thrust faults would form in the thicker part of the plate. The duration of the seamount ...

Modelling of Lintel-Masonry Interaction Using COMSOL

A. Vermeltfoort, and A. van Schijndel
Eindhoven University of Technology, Netherlands

An attempt was made, as described in this paper, to assign material properties like shear strength and modulus of elasticity randomly. In this way, the behaviour of a masonry wall with a prefabricated concrete lintel was experimentally tested and simulated using COMSOL. The paper confirms the possible use of COMSOL for modelling lintel-masonry interaction, including variation of mechanical ...

Modeling Mechanical Property Changes During Heating of Carrot Tissue - A Microscale Approach - new

S. Kadam[1], A. K. Datta[1]
[1]Department of Biological & Environmental Engineering, Cornell University, Ithaca, NY, USA

Turgor pressure loss and pectin degradation result in texture loss during cooking of plant based materials. To simulate texture loss, a simultaneous heat and moisture transfer, pectin degradation in the cell wall material and solid mechanical model was developed at the microscale using finite elements to predict the homogenized Young’s Modulus of the carrot tissue during heating. The model ...

Design of a Miniaturized RF MEMS Based Single-Bit Phase Shifter

A. Chakraborty, A. Kundu, S. Chatterjee, and B. Gupta
Jadavpur University
Kolkata
West Bengal, India

This paper presents a novel design of single-bit RF MEMS phase shifter. The basic novelty introduced for phase shifter design in this case, is by scaling down of the lateral dimensions of the conventional RF MEMS shunt switch by 10 times. The Mechanical and Electromechanical analysis of the designed miniature RF MEMS fixed-fixed beam is performed using COMSOL Multiphysics v.3.5a as an FEM ...

Optimization of Smart Diaphragm Material for Pressure Sensor in Ventilators

M. Algappan[1], P. C. Chakravarthi[1], R. Keerthana[1], S. Mangayarkarasi[1], A. Kandaswamy[1]
[1]PSG College of Technology, Coimbatore, Tamil Nadu, India

A medical ventilator is an imperative device used to save life by delivering an assortment of air and oxygen into and out of the patients’ lungs to administer breathing or to assist obligatory breathing. The commercially available diaphragm based pressure sensors made up of silicon measure the air and oxygen flow. The proposed work utilizes the Piezo electric material for the pressure range ...

安装在有限大障板上的轴对称扬声器特性的近似计算方法

陆晓 [1], 温周斌 [1],
[1] 浙江中科电声研发中心,嘉善,浙江,中国

使用 COMSOL Multiphysics® 仿真轴对称扬声器一般可采用 2D 轴对称模型,但在这种坐标系下无法建立扬声器测量中常用的矩形障板模型,而选择计算安装在无限大障板上扬声器的声特性,其仿真计算结果又与常见的标准障板上的测量结果在中低频段存在较大差异。 为了使无限大障板上的仿真结果与标准障板(或其它有限大障板)上的测量结果相一致,提出一种方法,利用 COMSOL 软件的 Parameter Sweep 功能,通过多次进行 2D 轴对称的电磁场、结构力学和声学三场耦合的扬声器仿真计算及相应后处理,得到安装在有限大障板上的扬声器正前方的声特性。 采用该方法可在较短时间内比较准确地计算得到安装在任意形状的有限大障板上的扬声器的声压级和谐波失真等特性。如图1和图2所示,采用该方法得到的声压级和总谐波失真曲线(红色),与测量结果(黑色)趋势和细节都比较一致。 ...

Analysis of Cost Effective Vertical Axis Wind Turbine (CEVAWT)

H. Shaikh[1], A. Arjun[1], R. Kumbhar[2]
[1]SVERI's College of Engineering, Pandharpur, Maharashtra, India
[2]WIL Walchandnagar, Pandharpur, Maharashtra, India

Wind turbines are the conventional type of energy source. The main focus of this work is the analysis and fabrication of cost effective VAWT. Cost of the turbine is reduced by low cost material and minimizing its total weight. There are two main types of the wind turbines i.e. Horizontal Axis Wind Turbine and Vertical Axis Wind Turbine. Savonious VAWT is preferable for energy generation, because ...

Creep Deformation Behavior of Heating Filaments in High Temperature Applications

B. Valentini [1],
[1] Plansee SE, Reutte, Austria

Resistive heating filaments used in high temperature applications at 2000°C and above are often made of refractory metals. The lifetime of such filaments is mainly limited by creep deformations which can in the worst case lead to a short circuit between filaments and other furnace components. With the aid of COMSOL Multiphysics software, the time-dependent creep deformation behavior of a heater ...