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

Effect of Viscosity of Food on Digestion and Nutrient Absorption in the Human Small Intestine

J. S. Karthikeyan [1], D. Salvi [1], M. V. Karwe [1],
[1] Rutgers University, New Brunswick, NJ, USA

Digestion is the process of breaking down food into smaller components, by mechanical and enzymatic action in the digestive tract, so that the smaller nutrient molecules can be more easily absorbed in the intestinal tract. To study and analyze the human digestive process, different ... Read More

Model of Pressure Drop Separation during Aqueous Polymer Flow in Porous Media

D. C. Raharja [1], R. E. Hincapie [1], M. Be [1], C. L. Gaol [1], L. Ganzer [1],
[1] Clausthal University of Technology, Clausthal-Zellerfeld, Germany

Aqueous polymers used for enhanced oil recovery (EOR) application is considered a complex fluid. It can exhibit Newtonian and Non-Newtonian behavior depending on the velocity or the stresses that it is submitted during the flooding process. Therefore, the polymer flooding project ... Read More

Studies of Sound Radiation from Beams with Acoustic Black Holes

C. Zhao [1], M. G. Prasad [1],
[1] Stevens Institute of Technology, Hoboken, NJ, USA

Recently, acoustic black holes (ABH), a new passive structural modification approach to control vibration and noise from mechanical structures have been developed and studied. This preliminary study presents the work on the influence of acoustical black holes on the vibration and sound ... Read More

A Transient Unified Model of Arc-Weld Pool Couplings During Pulsed Spot Gas Tungsten Arc Welding

A. Traidia[1], and F. Roger[2]
[1]AREVA NP, Technical Center, Saint Marcel, France
[2]ENSTA Paristech, Paris, France

Using COMSOL Multiphysics, a finite element model is introduced in this paper to describe the couplings between the welding arc and the weld pool dynamic in pulsed gas tungsten arc welding. The cathode, arc-plasma and melting anode regions are taken into account. The unified time ... Read More

Multiphysics Simulation of a Self-heating Paraffin Membrane Microactuator

P. Lazarou[1], C. Rotinat[1]
[1]CEA LIST/DIASI/LRI, Paris, France

A grand variety of microactuator technologies and demonstrators has been introduced during the last years. Of particular interest are the microactuators based on phase change materials and especially paraffin wax, which can volumetrically expand up to 15%, providing high force actuation. ... Read More

Biologic Tissues Properties Deduction Using an Opto-Mechanical Model of the Human Eye

A. V. Maurer [1], D. P. Enfrun [1], C. O. Zuber [1], R. Rozsnyo [2],
[1] R&D, Kejako, Plan-les-ouates, GE, Switzerland
[2] MNCM, HES-SO, GE, Switzerland

The visual accommodation is a complex biomechanical & optical process. Today in vivo imaging technologies do not allow to measure the eye components material properties, such as the refractive index or the stiffness: these properties are essential to understand and diagnose the effect of ... Read More

Design and Analysis of a Wetting Lens for the Pinhole Cameras of a Two Phase Flow System

A. K. Reddy[1], T. Satyanarayana[1]
[1]Lakireddy Balireddy Autonomous College of Engineering, Mylavaram, A.P., India

The present work reports the fabrication process of micro lens for pinhole cameras, modeled using COMSOL Multiphysics®, by satisfying the wetting properties. Wetting is a change in contact angle between the liquid and solid surface area. The wetting properties are clearly understood in ... Read More

Design of MEMS Based 4-Bit Shift Register

V. B. Math[1], B. G. Sheeparamatti[1], A. C. Katageri[1]
[1]Basaveshwar Engineering College, Bagalkot, Karnataka, India

This paper presents a unique design of MEMS based 4-bit shift register that perform shifting operation same as logic devices that are composed of solid-state transistors. The MEMS shift register design inherits all the advantages from MEMS switches and thus is expected to have more ... Read More

Frequency Analysis of Si-Wafers with Variable Size and Boundary Conditions

E. Gehrig [1],
[1] Hochschule RheinMain, University of Applied Sciences, Wiesbaden Rüsselsheim, Wiesbaden, Germany

Silicon wafers represent key elements in modern microelectronics or photovoltaics. Technological fabrications of wafer sizes with large diameters (e.g. 450 mm) allow an efficient realization for integrated circuits at low cost. However, this material shows a high sensitivity to ... Read More

Modeling and Simulation of Piezoresistive Pressure Sensor for 2bar Application

M. Ramezani [1], M. El Barkouky [1],
[1] Melexis, Tessenderlo, Belgium

In this paper, we focused on modeling of the piezoresistive pressure sensors. The Structural Mechanics Module of COMSOL Multiphysics® software is used to model the sensor and make a comparative study of the MEMS pressure sensor with different shape and size of membrane. The impact of ... Read More