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Fluid flow characteristics inside convergent, divergent and straight open-end pressure swirl atomizer

Title	Fluid flow characteristics inside convergent, divergent and straight open-end pressure swirl atomizer
Author	Razeghi, Alireza, Ertunç, Özgür, Hacibekir, T., Savci, İ. H.
Publication Date:	2020
Publication Place	- Europe, Institute for Liquid Atomization and Spray Systems, ILASS
Type	Document
Language	English
Digital	Yes
Manuscript	No
Library:	Özyeğin University
Library Asset ID	2-s2.0-85090328373
Record ID	74243917-b859-4836-b08f-4dbcaf766217
Library Location	Mechanical Engineering
Date	2020
Notes	TÜBİTAK
Sample Text	Effects of geometrical parameters on the performance of small-scale open-end pressure swirl atomizers (PSA) have been studied using computational fluid dynamics. The shape of the swirl chamber is the main geometrical feature varied in this work. Flow characteristics in PSA's with positive, negative and zero convergence of the swirl chamber are compared. Results show that, convergent open-end has greatest cone angle in comparison to other atomizers. Divergent open-end pressure swirl atomizer has the thinnest liquid film at the exit of orifice section whilst convergent one has the thickest liquid film. Additionally, the liquid sheet is not uniformly shaped, but rather has a complex shape with footprints of inlet slots. These footprints only vanish for convergent open-end PSA, due to higher Swirl number and angular momentum caused by gradual area reduction. Additionally, it has been shown that, straight open-end PSA has the biggest discharge coefficient value in comparison. Finally, variation of Swirl number and angular versus axial momentum inside different atomizers have been compared.

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Fluid flow characteristics inside convergent, divergent and straight open-end pressure swirl atomizer

Author Razeghi, Alireza, Ertunç, Özgür, Hacibekir, T., Savci, İ. H.

Publication Date 2020

Publication Place - Europe, Institute for Liquid Atomization and Spray Systems, ILASS

Type Document

Language English

Digital Yes

Manuscript No

Library Özyeğin University

Library Asset ID 2-s2.0-85090328373

Record ID 74243917-b859-4836-b08f-4dbcaf766217

Library Location Mechanical Engineering

Date 2020

Notes TÜBİTAK

Sample Text Effects of geometrical parameters on the performance of small-scale open-end pressure swirl atomizers (PSA) have been studied using computational fluid dynamics. The shape of the swirl chamber is the main geometrical feature varied in this work. Flow characteristics in PSA's with positive, negative and zero convergence of the swirl chamber are compared. Results show that, convergent open-end has greatest cone angle in comparison to other atomizers. Divergent open-end pressure swirl atomizer has the thinnest liquid film at the exit of orifice section whilst convergent one has the thickest liquid film. Additionally, the liquid sheet is not uniformly shaped, but rather has a complex shape with footprints of inlet slots. These footprints only vanish for convergent open-end PSA, due to higher Swirl number and angular momentum caused by gradual area reduction. Additionally, it has been shown that, straight open-end PSA has the biggest discharge coefficient value in comparison. Finally, variation of Swirl number and angular versus axial momentum inside different atomizers have been compared.