Modelling of the Czochralski flow. (1998)

• Record Type: Journal Article
• Authors: Franc, Jan
• Is Part Of: Abstract and applied analysis. Volume 3:Number 1/2(1998)
• Page Start: 1
• Page End: 40
• Publication Date: 1998
• Subjects: mathematical modelling -- viscous flow -- Czochralski method -- single crystal growth -- weak solution -- operator equation -- existence theorem -- weighted Sobolev spaces -- Rothe method; Mathematical analysis -- Periodicals; Mathematical analysis; Applied Mathematics; Mathematical Analysis; Periodicals; 515.05
• DOI: 10.1155/S1085337598000426
• Languages: English
• ISSNs: 1085-3375

Abstract

Abstract : The Czochralski method of the industrial production of a silicon single crystal consists of pulling up the single crystal from the silicon melt. The flow of the melt during the production is called the Czochralski flow. The mathematical description of the flow consists of a coupled system of six P.D.E. in cylindrical coordinates containing Navier-Stokes equations (with the stream function), heat convection-conduction equations, convection-diffusion equation for oxygen impurity and an equation describing magnetic field effect. This paper deals with the analysis of the system in the form used for numerical simulation. The weak formulation is derived and the existence of the weak solution to the stationary and the evolution problem is proved.