Open AccessComplex effect of recess depth in nozzle design on the discharge coefficient
Author(s) -
А. Н. Сабирзянов,
А. Н. Кириллова
Publication year - 2018
Publication title -
vestnik koncerna vko «almaz - antej»
Language(s) - English
Resource type - Journals
ISSN - 2542-0542
DOI - 10.38013/2542-0542-2018-1-43-50
Subject(s) - nozzle , discharge coefficient , impulse (physics) , mechanics , computer simulation , flow (mathematics) , materials science , mechanical engineering , engineering , physics , classical mechanics
We used contemporary computational fluid dynamics techniques to evaluate how the geometric parameters of a recessed nozzle affect the perfection of flow processes. We verified our numerical simulation and obtained acceptable agreement between numerical and experimental investigation results in terms of specific impulse loss. We plotted the discharge coefficient as a function of the geometrical parameters of a recessed nozzle. Our numerical investigation forms the basis of certain guidelines we developed for designing arc-based recessed nozzles.