NDLI: Investigation on Secondary Flow Characteristics in a Curved Annular Duct with Struts

Content Provider	Springer Nature Link
Author	Bu, H. X. Tan, H. J. Chen, H. He, X. M.
Copyright Year	2015
Abstract	Under the influence of duct curvature, cross-sectional area variation and internal struts, the internal flow field within a curved annular duct becomes rather complicated and contains strong secondary flow. In this paper, the secondary flow characteristics in an annular duct with struts are experimentally and numerically investigated. The results show that large pressure gradients exist on the bends of hub and shroud. Meanwhile, two counter-rotating vortex pairs appear both along the hub-side and shroud-side surfaces. The hub-side vortex pair of which the vortex cores travel downstream parallelly evolves from the horseshoe vortex which is induced by the leading edge of the upstream strut, whereas the shroud-side vortex pair originates from the strut trailing edge and the corresponding vortex cores develop in a divergent way. Additionally, the effects of the duct exit Mach number on the secondary flow characteristics are also studied. As the exit Mach number increases, the streamwise pressure gradients increase and lead to more intense vortices, higher total pressure loss and larger flow distortion.
Starting Page	27
Ending Page	44
Page Count	18
File Format	PDF
ISSN	13866184
Journal	Flow, Turbulence and Combustion
Volume Number	97
Issue Number	1
e-ISSN	15731987
Language	English
Publisher	Springer Netherlands
Publisher Date	2015-10-31
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	flow Curved annular duct Strut Vortices Pressure gradient Engineering Fluid Dynamics Fluid- and Aerodynamics Engineering Thermodynamics, Heat and Mass Transfer Automotive Engineering
Content Type	Text
Resource Type	Article
Subject	Physics and Astronomy Physical and Theoretical Chemistry Chemical Engineering

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Fluid Flow Behavior in the Curved Annular Sector Duct

Direct Numerical Simulation of a Square Jet Ejected Transversely into an Accelerating, Laminar Main Flow

Experimental Investigation of the Log-Law for an Adverse Pressure Gradient Turbulent Boundary Layer Flow at Re θ = 10000

Flow Structure of Swirling Turbulent Propane Flames

Pulsatile Turbulent Flow in Straight and Curved Pipes – Interpretation and Decomposition of Hot-Wire Signals

A Comparison of Large Scale Extraction Methods in the Study of Annular Wake Flow

The Effect of Pressure Gradient on Boundary Layer Receptivity

Transient Characterization of the Reattachment of a Massively Separated Turbulent Boundary Layer Under Flow Control

Reynolds-Stress Model Prediction of 3-D Duct Flows

Investigation on Secondary Flow Characteristics in a Curved Annular Duct with Struts

Similar Documents

Fluid Flow Behavior in the Curved Annular Sector Duct

Direct Numerical Simulation of a Square Jet Ejected Transversely into an Accelerating, Laminar Main Flow

Experimental Investigation of the Log-Law for an Adverse Pressure Gradient Turbulent Boundary Layer Flow at Re θ = 10000

Flow Structure of Swirling Turbulent Propane Flames

Pulsatile Turbulent Flow in Straight and Curved Pipes – Interpretation and Decomposition of Hot-Wire Signals

A Comparison of Large Scale Extraction Methods in the Study of Annular Wake Flow

The Effect of Pressure Gradient on Boundary Layer Receptivity

Transient Characterization of the Reattachment of a Massively Separated Turbulent Boundary Layer Under Flow Control

Reynolds-Stress Model Prediction of 3-D Duct Flows

Investigation on Secondary Flow Characteristics in a Curved Annular Duct with Struts