研究開発におけるマルチフィジックスシミュレーションの具体例

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COMSOL コンファレンス 2020 論文集を見る

Multiphysicsx

3D Multiphysics Model of Thermal Flow Sensors

C. Falco[1], A. De Luca[1], S. Sarfraz[1], F. Udrea[1]
[1]University of Cambridge, Cambridge, UK

The aim of this work is to present a model capable to describe the behaviour of a thermal flow sensor under every physical aspect. A generic thermal flow sensor relates the flow properties with a variation in the temperature profile inside the device itself. Thus, it is locally heated ... 詳細を見る

Modeling of Wettability Alteration during Spontaneous Imbibition of Mutually Soluble Solvents in Mixed Wet Fractured Reservoirs

M. Chahardowli[1], H. Bruining[1]
[1]Delft University of Technology, Delft, The Netherlands

Mutually-soluble solvents can enhance oil recovery both in completely and partially water wet fractured reservoirs. When a strongly or partially water-wet matrix is surrounded by an immiscible wetting phase in the fracture, spontaneous imbibition is the most important production ... 詳細を見る

The Microgeometry of Pressure Seals

R. P. Ruby[1], G. Kulkarni[2], U. Kanade[1]
[1]Noumenon Multiphysics Pvt. Ltd., Pune, Maharashtra, India
[2]Oneirix Engineering Laboratories Pvt. Ltd., Pune, Maharashtra, India

Seals or gaskets that are compressed between walls of a container are important to many industrial applications. Understanding the performance of such seals requires an understanding of the microscopic geometry of the sealing surfaces, because the fluid seeps around the undulations of ... 詳細を見る

Simulating Wear in Disc Brakes

N. H. Elabbasi[1], M. J. Hancock[1], S. B. Brown[1]
[1]Veryst Engineering, LLC, Needham, MA, USA

Wear is a complex phenomenon relevant to many problems involving frictional contact, such as mechanical brakes, seals, metal forming, and orthopedic implants. The rate of wear depends on the properties of the contacting materials and operating conditions. One widely used model of wear is ... 詳細を見る

Simulations of Micropumps Based on Tilted Flexible Structures

M. J. Hancock[1], N. H. Elabbasi[1], M. C. Demirel[2]
[1]Veryst Engineering, LLC., Needham, MA, USA
[2]Pennsylvania State University, University Park, PA, USA

Pumping liquids at small scales is challenging because of the principle of reversibility: in a viscous regime, the flow streamlines through a fixed geometry are the same regardless of flow direction. Recently we developed a class of microfluidic pump designs based on tilted flexible ... 詳細を見る

Simulating Wear in Disc Brakes

N. H. Elabbasi[1], M. J. Hancock[1], S. B. Brown[1]
[1]Veryst Engineering, LLC., Needham, MA, USA

Wear is a complex phenomenon relevant to many problems involving frictional contact, such as mechanical brakes, seals, metal forming, and orthopedic implants. The rate of wear depends on the properties of the contacting materials and operating conditions. One widely used model of wear is ... 詳細を見る

Extraction of Thermal Characteristics of Surrounding Geological Layers of a Geothermal Heat Exchanger by COMSOL Multiphysics® Simulations

N. Aranzabal[1], J. Martos[1], J. Soret[1], J. Torres[1], R. García-Olcina[1], Á. Montero[2]
[1]Technical School of Engineering, University of Valencia, Valencia, Spain
[2]Department of Applied Physics, Politechnical University of Valencia, Valencia, Spain

It has been demonstrated that is possible obtain the thermal parameters of geological layers of a BHE (Borehole Heat Exchanger) by fitting temperature evolution in an observer pipe inserted into borehole. 詳細を見る

Modelling of Reactive Non-Isothermal Mixture Flow and its Simulation in COMSOL Multiphysics® Software

V. Orava[1,2], O. Soucek[1], P. Cedula[2]
[1]Charles University in Prague, Prague, Czech Republic
[2]Zurich University of Applied Sciences, Winterthur, Switzerland

I introduce a model of fluidized reactor which, in presence of heterogeneous platinum-based catalyst, decomposes liquid formic acid producing gaseous mixture of carbon dioxide and hydrogen as the product. I treat the physical system as a (Class II) mixture of four constituents - namely ... 詳細を見る

Support-Q Optimisation of a Trapped Mode Beam Resonator

T. H. Hanley[1], H. T. D. Grigg[1], B. J. Gallacher[1]
[1]Newcastle University, Newcastle-Upon-Tyne, UK

Introducing a disorder into a finite periodic oscillatory system induces the presence of a 'trapped mode': a mode in which the displacement field is localised to the region of the disorder. A main inhibitor to MEMS resonators achieving a high quality (Q) factor is energy radiation ... 詳細を見る

Development of a Micro Ultrasonic Transducer

F. F. Dall'Agnol[1], A. C. F. de Mattos[1]
[1]Center for Information Technology Renato Archer (CTI), Campinas, SP, Brazil

We simulate a Capacitive Micromachined Ultrasound Transducer (CMUT) using COMSOL Multiphysics® software. The CMUT is an electromechanical system, therefore, we couple the physics of electrical and structural mechanics to describe its dynamics. We obtain the distributions of the electric ... 詳細を見る