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Hydro-Mechanical Modelling of Infiltration Test for a Bentonite-Sand Mixture: Model Verification and Parameter Identification

M. Hasal[1], R. Hrtus[1], Z. Michalec[1], R. Blaheta[1]
[1]Institute of Geonics AS CR, Ostrava, Czech Republic

The first aim of our work is to create a hydro-mechanical model (HM) of unsaturated fluid flow in bentonite-sand mixture (BSM) MX-80. The second aim ...

Pneumo-Hydrodynamic Droplet Generation

V. Mamet [1], P. Namy [2], N. Berri [1], L. Tatoulian [1], P. Ehouarn [1], V. Briday [1], P. Clemenceau [2], B. Dupont [1]
[1] DBV Technologies, Bagneux, France
[2] SIMTEC, Grenoble, France

Introduction Droplet-based microfluidics is a large source of research for scientists of new biotechnologies, aerosols or other 2D-Microfluidics ...

Numerical Simulation of Auto-Propulsion Mechanism of Microorganism Inside a Microchannel

S. Patra [1], A. Dalal [1], G. Biswas [1], S. Shah [2]
[1] Indian Institute of Technology Guwahati, Guwahati, Assam, India
[2] Indian Institute of Technology Bhubaneswar, Bhubaneswar, Odisha, India

The present study manifests the several ground breaking flow phenomena arising out of hydrodynamic interactions between two microorganisms swimming ...

Acoustic Scattering through a Circular Orifice in Low Mach Number Flow

S. Sack [1], M. Abom [1]
[1] KTH, the Royal Institute of Technology, Stockholm, Sweden

The acoustic scattering through a circular orifice plate in a duct with low Mach number flow (M=0.1) is computed using the Linearized Navier-Stokes ...

Use of COMSOL In Aerodynamic Optimization of the UNLV Solar-Powered Unmanned Aerial Vehicle

L. Dube, W. McElroy, and D. Pepper

University of Nevada, Las Vegas, Nevada, USA

We discuss the use of COMSOL Multiphysics 3.4 in the aerodynamic optimization process of the UNLV solarpowered UAV. We also address the use of COMSOL ...

Atmospheric Icing of Transmission Line Conductor Bundles

T. Wagner[1], and U. Peil[2]
[1]International Graduate School of Risk Management of Natural and Civilization Hazards on Buildings and Infrastructure, Braunschweig, Germany
[2]Institute of Steel Structures, Technical University Braunschweig, Braunschweig, Germany

Hazardous for the transmission lines is not only the static ice load, but also the aerodynamic instability of iced cables. It can lead to large ...

Mathematical Modeling Of Traveling-Wave Electroosmotic Micropumps By Using Of The Weak Form

J. Hrdlicka, P. Cervenka, and D. Snita
Institute of Chemical Technology Prague, Prague, Czech Republic

This contribution is devoted to the mathematical modeling of the AC electroosmotic micropumps in COMSOL Multiphysics and Matlab. The mathematical model involves the microchannel surroundings and several AC-voltage driving modes. The weak form has been used for handling singularities and other problems. The system dynamic behavior and conditions at the phase interfaces will be discussed.

Numerical Simulation of Forced and Static Smoldering Combustion

S. Singer[1], W. H. Green[1]
[1]Massachusetts Institute of Technology, Cambridge, MA, USA

Transient, two-dimensional (axisymmetric) simulations of a cigarette subject to realistic static and forward smoldering cycles were performed. The ...

Hydrodynamics of Lake Victoria: Vertically Integrated Flow Models in COMSOL Multiphysics® Software - new

S. Paul[1], R. Thunvik[1], D. D. Walakira[2], J. Mango[2], J. Oppelstrup[3], R. Wait[4]
[1]The Royal Institute of Technology, Stockholm, Sweden
[2]Makerere University, Kampala, Uganda
[3]COMSOL AB, Stockholm, Sweden
[4]Uppsala University, Uppsala, Sweden

Lake Victoria is the largest tropical lake in the world and is very important for environment and economy in East Africa. The hydrodynamic processes in ...

High-Resolution FSI Modeling of a High-Aspect Ratio Involute Flow Channel in the HFIR at ORNL

A. I. Elzawawy [1], J. D. Freels [2], F. G. Curtis [2, 3],
[1] Vaughn College of Aeronautics and Technology, East Elmhurst, NY, USA
[2] Oak Ridge National Laboratory, Oak Ridge, TN, USA
[3] University of Tennessee, Knoxville, TN, USA

The high flow rate within the HFIR cooling water flow channel causes the fuel plates to deflect which in turn, changes the coolant flow ...