O. Toscanelli, and V. Colla
Scuola Superiore S. Anna
The flux of a fluid in permeable media can be modelled using a continuous. To link the real system with the continuous model is mandatory to realize a suitable average of the equations and of the variables. The dispersion term comes from this averaging but it is not only a mathematical product of the modelling. The dispersion is due to the intrinsic geometry of the permeable media that forces ...
J. Martinek, M. Reichel, F. Schmöllebeck, and M. Strummer
Fachhochschule Technikum Wien, Wien
Leistungsfähige Simulationsmethoden sind ein wichtiger Teil der Werkzeuge von Akademikerinnen im Bereich der technischen Wissenschaften. Im Zusammenhang mit dem Umstieg auf eine in Europa einheitliche dreigliedrige Studienarchitektur (Bachelor, Master, PhD) und eine Reduktion von Kontaktzeiten in der Lehre an Fachhochschulen ist die effiziente Nutzung von eigenverantwortlichen Lernphasen der ...
Atomic Energy of Canada Limited, Mississauga, Ontario, Canada
RFSP-IST (Reactor Fueling Simulation Program) is a computer code used for the full-core neutronics design and analysis of CANDU® reactors. RFSP-IST calculates the static flux and power distributions in the core by solving the neutron diffusion equation in two energy groups. For validation purposes, results from RFSP-IST are often compared with those from other codes. This paper documents the ...
A. Helfrich-Schkarbanenko, M. Mitschele, S. Ritterbusch, and V. Heuveline
Engineering Mathematics and Computing Lab (EMCL), Karlsruhe Institute of Technology (KIT), Karlsruhe, Germany
Institute for Analysis, Karlsruhe Institute of Technology (KIT), Karlsruhe, Germany
We consider a 3D boundary value problem arising in electrostatics. The potential is stimulated by current sources placed on a cross-section S of the domain. In many applications it is sufficient to know the potential in S. So, one is interested in an appropriate 2D model taking into account that the solution depends on the dimension of the domain. The idea is to find a corresponding 2D ...
B. Pryor, and R. Pryor
Pryor Knowledge Systems
Bloomfield Hills, MI
Using modeling software such as COMSOL Multiphysics during the design phase, an approach called “simulation-led design”, allows ideas to be both inspired and validated by the use of simulations. Then, using simulations after the product is designed can shorten the prototype-testing portion of the development process and reduce its cost. This paper provides specifics on the nature of the ...
Dynamic Simulation of Bone Morphogenetic Protein Patterning in a 3D Finite-Element Model of the Danio Rerio Embryo
D. Umulis, and S. Lee
West Lafayette, IN
Zebrafish development of the dorsoventral axis relies on the spatiotemporal distribution of Bone Morphogenetic Protein (BMP) signaling, which is regulated by numerous secreted molecules such as Tolloid, Sizzled, and Chordin. The rich dorsal/ventral patterning network must achieve both spatial precision in the patterning of downstream targets and confernspatial precision at distinct time points in ...
Universität Tübingen, Inst. f. Theoretische Physik, Tübingen
The common basis of physical laws is the continuity of the action field. It implies Structural mechanics, Hydrodynamics, Quantum mechanics, Electrodynamics and the self-organisation of matter. A general tool to investigate all the basic equations is FEMLAB. In academic training it allows to take the concentration away from the manifold of mathematical methods of solutions and draw it to the real ...
P. Franciosa and S. Gerbino
Faculty of Engineering, University of Naples Federico II, Napoli, Italy
Faculty of Engineering, University of Molise, Campobasso, Italy
Tessellated models are more and more used in several engineering fields. The need to use such models to quickly perform computer simulations related to coupled physical phenomena, implies the use of dedicated software, allowing to solve, into an integrated environment, multiphysics problems. In the present work, COMSOL Multiphysics® has been used and its ability to handle tessellated models ...
L. Martinelli, A. Lamberti, and P. Ruol
DISTART Idraulica, Università di Bologna, Bologna, Italy
IMAGE, Università di Padova, Padova, Italy
Objective of this contribution is to present a procedure for evaluating second order drift forces on floating bodies, often the most important loading component for mooring design, in case of high waves propagating in relatively shallow water depths. The non linearity associated to this condition, which is typical of installations involving wave energy converters, makes this problem particularly ...
Keisoku Engineering System Co., Ltd., Tokyo, Japan
The present paper constructs optimal control problem for unsteady heat conduction equation and shows a method to adjust the numerical solution of temperature to prescribed objective temperature. The time dependence of the boundary heat flux is parameterized and determined by using optimization method given here. The system of equations are solved by using COMSOL Multiphysics. It was found that ...