Numerical modelling of MPA-CVD reactors with the discontinuous Galerkin finite element method. (3rd July 2017)

• Record Type: Journal Article
• Authors: Houston, Paul; Sime, Nathan
• Is Part Of: Journal of physics. Volume 50:Number 29(2017)
• Publication Date: 2017-07-03
• Subjects: MPA-CVD modelling -- finite element methods -- discontinuous Galerkin methods; Physics -- Periodicals; 530
• DOI: 10.1088/1361-6463/aa77dc
• Languages: English
• ISSNs: 0022-3727

Abstract

Abstract: In this article we develop a fully self consistent mathematical model describing the formation of a hydrogen plasma in a microwave power assisted chemical vapour deposition (MPA-CVD) reactor employed for the manufacture of synthetic diamond. The underlying multi-physics model includes constituent equations for the background gas mass average velocity, gas temperature, electromagnetic field energy and plasma density. The proposed mathematical model is numerically approximated based on exploiting the discontinuous Galerkin finite element method. We demonstrate the practical performance of this computational approach on a variety of CVD reactor geometries for a range of operating conditions.