numerical analysis of melt flow and interface deflection

NUMERICAL STUDY OF ELECTROMAGNETIC STIRRING IN A CYLINDRICAL CONFIGURATION FOR DIRECTIONAL SOLIDIFICATION

3 Numerical study of electromagnetic for directional solidification Article no. 608 through which an electrical current of 5 A is injected into the melt. The crucible is placed in an external magnetic field with an intensity of 10 mT. A schematic

A Numerical and Asymptotic Study of Some Third

(2009) Linear stability analysis of a sharp-interface model for dewetting thin films. Journal of Engineering Mathematics 63 :2-4, 177-195. (2009) Symmetries, first integrals and phase planes of a third-order ordinary differential equation from thin film flow.

Numerical analysis of the influence of tilt of crucibles on

We carried out calculations to investigate the influence of tilt of crucibles on the melt-crystal interface shape and fields of temperature and velocity of the melt and/or crystal by three-dimensional global and melt-crystal analyses. It was found that flow velocity was larger in the case of a fixed boundary condition of edge of the interface than that in the case of a relaxed condition

Comparison between numerical modeling and

Numerical modeling is applied to investigate the factors affecting the shape of the crystal-melt interface during the growth of Ti-doped sapphire crystals by using the Kyropoulos method. Numerical results are compared to experimental visualization of the growth interface in the case of ingots grown in crucibles of 15 cm in diameter. The transient computations of the heat transfer and melt

Numerical Simulation of Melt/Crystal Interface and Melt

Numerical simulation is an effective tool for improving the large diameter single silicon crystal quality and reducing the preparation cost.The deflection of melt/crystal interface in Czochralski(Cz) method is a key issue for crystal quality.Owing to the high-temperature

8.6 PARAMETERIZATION OF FROZEN SOIL PHYSICS AND FROST HEAVE FOR A NUMERICAL

shakedown analysis of the thawed roadbed, specifically the thermal and limits that will result in the critical load level required to reach the fishakedown loadfl. Consequently, a three-tiered approach of a numerical weather, land surface, and shakedown analysis

Analytical studies on the crystal

Abstract Effects of the operating conditions on the crystal–melt interface shape are analytically investigated for the Czochralski process of the oxide single crystals. The ideas, which were used for the silicon single-crystal growth by Jeong et al. (J. Crystal Growth 177 (1997) 157), are extended to the oxide single-crystal growth problem by considering the internal radiation in the crystal

Numerical modeling of free surface and rapid solidification for simulation and analysis of melt

Numerical modeling of free surface and rapid solidification for simulation and analysis of melt spinning Chunbai Wang Iowa State University Follow this and additional works at:https://lib.dr.iastate.edu/etd Part of theAerospace Engineering Commons

Numerical modeling of free surface and rapid solidification for simulation and analysis of melt

Numerical modeling of free surface and rapid solidification for simulation and analysis of melt spinning Chunbai Wang Iowa State University Follow this and additional works at:https://lib.dr.iastate.edu/etd Part of theAerospace Engineering Commons

Analysis of Cavity Pressure and Warpage of Polyoxymethylene

Analysis of Cavity Pressure and Warpage of Polyoxymethylene Thin Walled Injection Molded Parts: Experiments and Simulations P. Guerrier, G. Tosello, J. H. Hattel (a) Cross section of the part geometry. (b) Geometrical dimensions and sensor location s (P1, P2

Development, verification and application of numerical model for coupled free surface and liquid metal flow

Development, verification and application of numerical model for coupled free surface and liquid metal flow calculation in EM field S. Spitans 1,2, A. Jakovics 2, E. Baake 1 B. Nacke 1 1 Institute of Electrotechnology, Leibniz University, Germany 2 Laboratory for

Numerical analysis of solid–liquid interface shape during

2017/3/15Numerical analysis is an effective tool to research the industrial Czochralski (CZ) crystal growth aiming to improve crystal quality and reduce manufacturing costs. In this study, a set of global simulations were carried out to investigate the effect of crystal-crucible rotation and pulling rate on melt convection and solid–liquid (SL) interface shape. Through analyses of the simulation data

Numerical Study of the Effect of Magnetic Fields on Melt

Liu, L, Kakimoto, K. Numerical Study of the Effect of Magnetic Fields on Melt-Crystal Interface-Deflection in Czochralski Crystal Growth. Proceedings of the ASME 2003 Heat Transfer Summer Conference.Heat Transfer: Volume 3.Las Vegas, Nevada, USA. July

Numerical investigation of floating zone silicon using Halbach

Numerical investigation of floating zone silicon using Halbach array magnets distribution, and the crystallization interface are confirmed. Halbach array magnets can locally restrain the melt flow velocity and improve the deflection of the crystallization interface.

Simulation of slit dies in operation including the interaction

1996/8/15Melt flow in the die is effectively isothermal in all cases, and agreement between mean experimental values and computed results from the coupled pressure field-deflection analysis is very close - within 2% in two cases, and 6% in the third.

Thermal conduction

Thermal conduction is the transfer of internal energy by microscopic collisions of particles and movement of electrons within a body. The colliding particles, which include molecules, atoms and electrons, transfer disorganized microscopic kinetic and potential energy, jointly known as internal energy. Conduction takes place in all phases

Numerical Modeling of Thermal and Flow Field in

2020/11/24The results show that, with B0 increases, the deflection of S/L interface decreases and melt flow rate is greatly inhibited. Through the analysis of the flow structure, it is found that two small vortexes in melt without B0 become a large vortex as B0 increases.

[PDF] Heat and Fluid Flow Analysis on the Effect of

This study presents the results on the changes of crucible thermal conductivity and inflow of Ar, and constructed the mathematical model about heat transfer into furnace. As process variables, simulation model was designated thermal conductivity of crucible to,,,, and inflow rate of Ar to 15 L/min, 30 L/min, 60 L/min. Initial condition and boundary condition were set respectively in two

Numerical analysis of effects of crystal and crucible

TY - JOUR T1 - Numerical analysis of effects of crystal and crucible rotations on melt-crystal interface shape and melt flow in CZ growth by global simulation AU - Liu, Lijun AU - Kitashima, Tomonori AU - Kakimoto, Koichi PY - 2003/12/1 Y1 - 2003/12/1 N2

Experimental and numerical study of Rayleigh

B. Fischer, J. Friedrich, C. Kupfer, D. Vizman, and G. Mller, "Experimental and numerical analysis of the influence of rotating magnetic fields on heat transport in Rayleigh-Bnard configurations," in Proceedings of the 3rd International Conference on Transfer

Numerical Simulation of Melt/Crystal Interface and Melt

Numerical simulation is an effective tool for improving the large diameter single silicon crystal quality and reducing the preparation cost.The deflection of melt/crystal interface in Czochralski(Cz) method is a key issue for crystal quality.Owing to the high-temperature

Numerical Study of Heat Transport and Fluid Flow of

For the seeding process of the Czochralski crystal growth of sapphire, the flow and temperature field with a nonflat melt−gas interface have been studied numerically using the finite element method. The configuration usually used initially in a real Czochralski crystal growth process consists of a crucible, active afterheater, induction coil with two parts, insulation, melt, and gas. At

Modeling Crystallization in Polymer Processing

The effect of flow presence on polymer crystallization needs to be explored in order to be able to study the interplay between process dynamics and properties of processed polymeric materials such as cast films (Fig. 2 a) and fibers (Fig. 2 b and c). As

Numerical modeling of free surface and rapid solidification for simulation and analysis of melt

Numerical modeling of free surface and rapid solidification for simulation and analysis of melt spinning Chunbai Wang Iowa State University Follow this and additional works at:https://lib.dr.iastate.edu/etd Part of theAerospace Engineering Commons

Analysis of Cavity Pressure and Warpage of Polyoxymethylene

Analysis of Cavity Pressure and Warpage of Polyoxymethylene Thin Walled Injection Molded Parts: Experiments and Simulations P. Guerrier, G. Tosello, J. H. Hattel (a) Cross section of the part geometry. (b) Geometrical dimensions and sensor location s (P1, P2

A Numerical and Asymptotic Study of Some Third

(2009) Linear stability analysis of a sharp-interface model for dewetting thin films. Journal of Engineering Mathematics 63 :2-4, 177-195. (2009) Symmetries, first integrals and phase planes of a third-order ordinary differential equation from thin film flow.

Comparison between numerical modeling and

According to present numerical analysis, the formation of a plateau and the temporal concave shape of the crystal are related to unfavorable thermal conditions at the beginning of the growth process. Numerical modeling is applied to investigate the factors affecting the shape of the crystal-melt interface during the growth of Ti-doped sapphire crystals by using the Kyropoulos method.

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