Description of Unsteady Flows in the Cuboid Container
Commenced in January 2007
Frequency: Monthly
Edition: International
Paper Count: 33104
Description of Unsteady Flows in the Cuboid Container

Authors: K. Horáková, K. Fraňa, V. Honzejk

Abstract:

This part of study deals with description of unsteady isothermal melt flow in the container with cuboid shape. This melt flow is driven by rotating magnetic field. Input data (instantaneous velocities, grid coordinates and Lorentz forces) were obtained from in-house CFD code (called NS-FEM3D) which uses DDES method of computing. Description of the flow was performed by contours of Lorentz forces and caused velocity field. Taylor magnetic numbers of the flow were used 1.10^6, 5.10^6 and 1.10^7, flow was in 3D turbulent flow regime.

Keywords: In-house computing code, Lorentz forces, magnetohydrodynamics, rotating magnetic field.

Digital Object Identifier (DOI): doi.org/10.5281/zenodo.1336016

Procedia APA BibTeX Chicago EndNote Harvard JSON MLA RIS XML ISO 690 PDF Downloads 1588

References:


[1] P. A. Davidson: "An Introduction to Magnetohydrodynamics”, Cambridge, 2001.
[2] P. Dold, K. W. Benz: "Rotating magnetic fields: fluid flow and crystal growth applications”.
[3] R. Mőßner, G. Gerbeth: "Buoyant melt flows under the influence of steady and rotating magnetic fields”, Journal of Crystal Growth, 1999.
[4] K.-H. Spitzer, "Application of Rotating Magnetic Fields in Czochralski Crystal Growth”, Progress in Crystal Growth and Characterization of Materials 38, pp 39-58, 1999.
[5] L. M. Witkowski, J. S. Walker: "Flow driven by Marangoni covection and Rotating Magnetic Field in a Floating – Zone configuration”, Magnetohydrodynamics, Vol. 37, 2001.
[6] E. Yildiz, S. Dost: "A numerical simulation study for the effect of magnetic fields in liquid phase diffusion growth of SiGe single crystals”, Journal of Crystal Growth 291, 2006.
[7] Doležal I, Musil L.: "Modern industrial technologies based on processes in fluid metal controlled by electromagnetic field”, 11/2003, Praha, 2003.
[8] K. Fraňa, J. Stiller, A numerical study of flows driven by a rotating magnetic field in a square container, European Journal of Mechanics - B/Fluids, Issue 4, Vol. 27, 2008, p.p. 491-500.
[9] K.Fraňa, V. Honzejk, K. Horáková: "A numerical simulation of the magnetically driven flows in a square container using the Delayed Detached Eddy Simulation”, Sixth International Conference on Computational Fluid Dynamics, St. Petersburg, Russia.
[10] K. Horáková, K. Fraňa: "Lorentz forces of rotating magnetic field”, Mechanical Engineering Journal Strojárstvo, 2009, Slovak Republic
[11] K. Horáková, K. Fraňa, "The effect of Lorentz forces parameters”, Experimental fluid mechanics 2009, Liberec, Czech Republic.
[12] J. Priede, "Theoretical study of a flow in an axisymmetric cavity of finite length driven by a rotating magnetic field”, Ph.D. thesis, Institude of Physics, Latvian Academy of Science, Salaspils, 199.
[13] K. Horáková, K. Fraňa, "Energetic spectra of unsteady flows”, Journal of Applied Science in the Thermodynamics and Fluid Mechanics, No. 1/2011.