Optimizing Performance of Equipment for Thermostimulation of Muscle Tissue using COMSOL Multiphysics
J. Kocbach, K. Folgerø, L. Mohn, O. Brix
Christian Michelsen Research, Bergen, Norway
Luzmon Norway, Bergen, Norway
Michelsen Medical, Bergen, Norway
The design challenge for thermostimulation equipment is to get a combination of high electric field strength and high temperature within the muscle tissue without causing pain or skin burns. In the present work, COMSOL Multiphysics is used to simulate the temperature distribution and electric field distribution within body tissue for varying body composition and varying design parameters of the ...
Computational Modeling of the Electrohydrodynamics Influencing Trace Mercury Adsorption within Electric Utility Electrostatic Precipitators
University of Michigan, Ann Arbor, MI, USA
Anthropogenic mercury (Hg) emissions increase the risk of neurological and neonatal health effects in humans through fish consumption. There are several technological approaches to controlling mercury emissions from coal combustion, including the injection of a powdered mercury sorbent into the flue gas upstream of the particulate control device (PCD). As most PCDs are electrostatic ...
J. Xi, Q. M. Mohamad, Y. E. Yuan, J. Rohlinger
Mechanical and Biomedical Engineering, Central Michigan University, Mount Pleasant, MI, USA
1. Flow-induced uvula deformation considerably altered the flow dynamics inside the nose. 2. For a weak soft palate, complete flow occlusion can occur (sleep apnea). 3. Vibration of the airway structures is crucial to better understand snoring generation mechanisms and breathing-related disorders.
Biofluid-Structural Interaction in Abdominal Aortic Aneurysm for Predicting Timeline to Rupture: The Effect of Hypertension and Aorta Wall Material Properties - new
K. Cluff, H. Mehraein, G. Jayakumar
Bioengineering, Wichita State University, Wichita, KS, USA
Industrial & Manufacturing Engineering, Wichita State University, Wichita, KS, USA
An abdominal aortic aneurysm (AAA) is a bulge formed in the large blood vessels that supply blood to the abdomen, pelvis, and legs. A fluid structure interaction model was developed in a 3D aortic aneurysm model, which was constructed from abdominal CT scan images. Combining medical imaging and computational fluid dynamics (CFD) in a time dependent study allowed the determination of wall ...
S. Hossain , F. A. Mohammadi 
 Department of Electrical and Computer Engineering, Ryerson University, Toronto, ON, Canada
INTRODUCTION: Abnormalities in local body surface temperature have been recognized as a sign of disease for centuries, much before humans knew about the cause of ailments or of pain . The idea of this work is to use numerical simulation tools to predict the location, size and metabolism of tumor embedded in any outer body organ of human. Idealized thermal data of an organ, modeled either as a ...
B. Boulbène, J. Morchain, and P. Schmitz
Université de Toulouse, NSA, UPS, INP, LISBP, Toulouse, France
We present numerical results involving microorganisms adhering to a plane surface submitted to a shear flow. The purpose is to have a better understanding of the removal mechanisms occurring during the cleaning in place of food processing equipments. The biological cell, i.e. the microorganism, is modelled as a rigid obstacle embedded in the bottom wall of the fluid domain. Shear induced ...
V. Nicolas[1,2], J.P. Ploteau, P. Salagnac, P. Glouannec, V. Jury, and L. Boillereaux
Laboratoire d’Ingénierie des MATériaux de Bretagne – Equipe Thermique et Energétique, Université Européenne de Bretagne, Lorient Cedex, France
Laboratoire d’Etudes des Phénomènes de Transfert et de l’Instantanéité : Agro-industrie et Bâtiment, Université de La Rochelle, La Rochelle Cedex, France
Laboratoire de Génie des Procédés, Environnement, Agroalimentaire, ENITIAA, France
In this paper, we present a first model carried out with COMSOL Multiphysics to model bread baking, considering heat and mass transfer coupled with the phenomenon of swelling. This model predicts the pressures, temperatures and water contents evolutions in the dough for different energy requests. First results obtained are analyzed according to various physical parameters in order to better ...
J. Ferdous, M. Ghaly , V. B. Kolachalama , T. Shazly[1,4]
Biomedical Engineering Program, University of South Carolina, Columbia, SC, USA
Department of Biomedical Engineering, North Carolina State University, Raleigh, NC, USA
Charles Stark Draper Laboratory, Cambridge, MA, USA
Department of Mechanical Engineering, University of South Carolina, Columbia, SC, USA
Inferior vena cava (IVC) filters have become essential components in deep vein thrombosis treatment to prevent preventing pulmonary embolisms. Filter efficacy relies on maintaining IVC patency by preventing filter-induced thrombosis following clot capture. A computational model has been developed to determine whether a candidate filter design elicits hemodynamic patterns that promote thrombus ...
M. Blaziková, J. Malínský, D. Stanek, and P. Herman
Faculty of Mathematics and Physics, Charles University, Prague, Czech Republic
Institute of Experimental Medicine, Prague, Czech Republic
Institute of Molecular Genetics, Prague, Czech Republic
Small nuclear ribonucleoprotein particles (snRNPs) are essential supramolecular complexes involved in pre-mRNA splicing, the process of post-transcriptional RNA modifications. The particles undergo complex assembly steps inside the cell nucleus in a highly dynamic compartment called the Cajal body. We have previously shown that the free diffusion model does not fully describe the snRNP motion ...
D. Iber, D. Menshykau, and P. Germann
Department of Biosystems Science and Engineering
Organogenesis is a tightly regulated process that has been studied experimentally for decades. Computational models can help to integrate available knowledge and to better understand the underlying regulatory logic. We are currently studying mechanistic models for the development of limbs, lungs, kidneys, and bone. We have tested a number of alternative methods to solve our spatio-temporal ...