Beta
ManageSearchChatDiscover
221896

Optimization of Vane-Island Diffusers at High Swirl.

Article

Last updated: 22 Jan 2023

OverviewSimilar Items

Subjects

-

Tags

Mechanical Power Engineering

Abstract

An experimental investigation on the performance of vane-island diffusers at highly distorted inlet flow is presented in this paper. The flow field at diffuser inlet is characterized by a high swirl number (λ=9) and unsteadiness. The design of the vanes is optimized starting from the available data in the literature for plane diffuser. The optimum pressure recovery is optimized with regard to the geometry of the interaction between impeller exit and vane leading edge (diffuser inlet). Three different vane setting angle – were investigated and their results were reported. The effect of free stream turbulence on the performance is also studied. The turbulence is generated by a set of cylindrical rods perpendicular to the flow and parallel to the diverging walls of the diffuser. The experimental results show that the vane setting angle must be considered in the performance optimization process of the Vane-island diffusers The increment of the vane setting angle by 5o over the design setting angle (based on the absolute velocity angle at exit) improves the pressure recovery by about 7 %. Also it was found that decreasing the setting angle deteriorates the diffuser performance. The experimental results has also shown that the increasing of turbulence level at diffuser inlet improves the pressure recovery

DOI

10.21608/bfemu.1984.221896

Authors

First Name

M.

Last Name

A. Rayan

MiddleName

-

Affiliation

Associate Professor of Mechanical Power Engineering Department, Faculty of Engineering, Mansoura University, Mansoura, Egypt.

Email

-

City

Mansoura

Orcid

-

First Name

H.

Last Name

Mansour

MiddleName

-

Affiliation

Assistant Professor of Mechanical Power Engineering Department, Faculty of Engineering, Mansoura University, Mansoura, Egypt.

Email

mnhsaadanyh@yahoo.com

City

Mansoura

Orcid

-

Volume

9

Article Issue

2

Related Issue

30940

Issue Date

1984-12-01

Receive Date

1984-10-10

Publish Date

2022-02-26

Page Start

30

Page End

44

Print ISSN

1110-0923

Online ISSN

2735-4202

Article File

BFEMU_Volume 9_Issue 2_Pages 30-44.pdf

PDF . 550.6kB

Link

https://bfemu.journals.ekb.eg/article_221896.html

Detail API

https://bfemu.journals.ekb.eg/service?article_code=221896

Order

11

Type

Research Studies

Type Code

1,205

Publication Type

Journal

Publication Title

MEJ. Mansoura Engineering Journal

Publication Link

https://bfemu.journals.ekb.eg/

MainTitle

-

Details

Type

Article

Created At

22 Jan 2023