Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
8149569 | Journal of Crystal Growth | 2015 | 8 Pages |
Abstract
The vertical rotating disc CVD reactor problem is revisited with a computational framework that allows systematic parameter continuation along branches of flow regimes over various operating parameter values. The commercial CFD code Fluent is used, enhanced with a home-made module and by appropriate initialization, a P-Ï diagram is mapped out. In addition to the well known result where boyancy-induced and rotation-induced regimes exist for low and high rotation rates respectively along with a favorable for film uniformity plug flow regime in between, interesting new flow regimes are computed: Stable time-periodic buoyancy induced flows are found as well as stationary ones. Periodic buoyancy induced flows co-exist with stationary plug flow regimes over a range of Ï for pressures higher than 200Â Torr. A regime of stationary flows where the effect of buoyancy and rotation is combined is computed at pressures higher than 350Â Torr and it shown to co-exist with typical rotation induced flows.
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Authors
G.P. Gakis, E.D. Koronaki, A.G. Boudouvis,