WIT Press


The Non-isothermal Flow Pattern In A Complex Hydraulic System

Price

Free (open access)

Volume

56

Pages

10

Published

2001

Size

963 kb

Paper DOI

10.2495/FSI010201

Copyright

WIT Press

Author(s)

H. Szewczyk, K. Jezowiecka-Kabsch & A. Grygoriev

Abstract

Visualization studies of an appliance with complex flow characteristics have been performed. The appliance was an epitaxial reactor tube used in the electron- beam technology. In this appliance the gas jet (mainly hydrogen) enters a wide chamber tube through a thin pipe, passes through a perforated sheet, runs into a hot (800-900°C) cylindrical surface and leaves the appliance. It has been shown that this non-isothermal flow is unstable and that it is possible to make it stable only by eliminating the causes of such a condition. This consists in reversing the flow and in using a guide apparatus for guiding the jet inflow to the reactor and the perforated sheet behind it. Such a guide apparatus may also be used in other non-isothermal flows and makes an example of intentional

Keywords



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