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Analysis of Fluid Flow and Heat Transfer in a Gas Phase Crystal Growth Furnace
Author(s) -
Rehse U.,
Miller W.,
Böttcher K.
Publication year - 1999
Publication title -
crystal research and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.377
H-Index - 64
eISSN - 1521-4079
pISSN - 0232-1300
DOI - 10.1002/(sici)1521-4079(199904)34:4<441::aid-crat441>3.0.co;2-y
Subject(s) - ampoule , heat transfer , fluid dynamics , natural convection , mechanics , convection , thermodynamics , flow (mathematics) , boussinesq approximation (buoyancy) , materials science , vortex , heat exchanger , chemistry , physics , rayleigh number , composite material
Steady‐state simulations of fluid flow and temperature field are presented for an equipment that is used to grow Zinc Selenide single crystals from the gaseous phases via physical (PVT) or chemical vapour transport (CVT). Due to the horizontal arrangement of the air‐filled furnace pipe calculating the natural convection in the air requires a 3D (three‐dimensional) treatment of the problem. The simulations have been done by applying the commercial finite‐element package FIDAP. The Navier‐Stokes equation is solved with the Boussinesq approximation. The heat transfer analysis comprises also internal radiation wall‐to‐wall exchange. Due to the presence of the ampoule in the pipe, the development of vortices with higher velocities is restrained, so that the maximum velocity is roughly 1/4 of that in the case without an ampoule.