Measurement of developing turbulent flows in a 90-degree square bend with spanwise rotation

Young Don Choi; Dong Chul Kim; Kun Hee Lee

doi:10.1007/BF03023909

Measurement of developing turbulent flows in a 90-degree square bend with spanwise rotation

Young Don Choi^*
, Dong Chul Kim
, Kun Hee Lee

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

1 Citation (Scopus)

Abstract

Mean flow and turbulence properties of developing turbulent flows in a 90 degree square bend with span-wise rotation are measured by a hot-wire anemometer. A slanted wire is rotated into 6 orientations and the voltage outputs from them are combined to obtain the mean velocity and the Reynolds stress components. Combined effects of the centrifugal and Coriolis forces due to the curvature and the rotation of the bend on the mean motion and turbulence structures are investigated experimentally. Results show that the two body forces can either enhance or counteract each other depending on the flow direction in the bend.

Original language	English
Pages (from-to)	1503-1516
Number of pages	14
Journal	Journal of Mechanical Science and Technology
Volume	19
Issue number	7
DOIs	https://doi.org/10.1007/BF03023909
Publication status	Published - 2005 Jul

Keywords

Coriolis Force
Hot-wire measurement
Reynolds Stress
Rotating Curved Duct
Turbulent Flow

ASJC Scopus subject areas

Mechanics of Materials
Mechanical Engineering

Access to Document

10.1007/BF03023909

Cite this

@article{edff3a55ab8c4eb08253e8e9e6386628,

title = "Measurement of developing turbulent flows in a 90-degree square bend with spanwise rotation",

abstract = "Mean flow and turbulence properties of developing turbulent flows in a 90 degree square bend with span-wise rotation are measured by a hot-wire anemometer. A slanted wire is rotated into 6 orientations and the voltage outputs from them are combined to obtain the mean velocity and the Reynolds stress components. Combined effects of the centrifugal and Coriolis forces due to the curvature and the rotation of the bend on the mean motion and turbulence structures are investigated experimentally. Results show that the two body forces can either enhance or counteract each other depending on the flow direction in the bend.",

keywords = "Coriolis Force, Hot-wire measurement, Reynolds Stress, Rotating Curved Duct, Turbulent Flow",

author = "Choi, \{Young Don\} and Kim, \{Dong Chul\} and Lee, \{Kun Hee\}",

year = "2005",

month = jul,

doi = "10.1007/BF03023909",

language = "English",

volume = "19",

pages = "1503--1516",

journal = "Journal of Mechanical Science and Technology",

issn = "1738-494X",

number = "7",

}

TY - JOUR

T1 - Measurement of developing turbulent flows in a 90-degree square bend with spanwise rotation

AU - Choi, Young Don

AU - Kim, Dong Chul

AU - Lee, Kun Hee

PY - 2005/7

Y1 - 2005/7

N2 - Mean flow and turbulence properties of developing turbulent flows in a 90 degree square bend with span-wise rotation are measured by a hot-wire anemometer. A slanted wire is rotated into 6 orientations and the voltage outputs from them are combined to obtain the mean velocity and the Reynolds stress components. Combined effects of the centrifugal and Coriolis forces due to the curvature and the rotation of the bend on the mean motion and turbulence structures are investigated experimentally. Results show that the two body forces can either enhance or counteract each other depending on the flow direction in the bend.

AB - Mean flow and turbulence properties of developing turbulent flows in a 90 degree square bend with span-wise rotation are measured by a hot-wire anemometer. A slanted wire is rotated into 6 orientations and the voltage outputs from them are combined to obtain the mean velocity and the Reynolds stress components. Combined effects of the centrifugal and Coriolis forces due to the curvature and the rotation of the bend on the mean motion and turbulence structures are investigated experimentally. Results show that the two body forces can either enhance or counteract each other depending on the flow direction in the bend.

KW - Coriolis Force

KW - Hot-wire measurement

KW - Reynolds Stress

KW - Rotating Curved Duct

KW - Turbulent Flow

UR - https://www.scopus.com/pages/publications/33644524739

U2 - 10.1007/BF03023909

DO - 10.1007/BF03023909

M3 - Article

AN - SCOPUS:33644524739

SN - 1738-494X

VL - 19

SP - 1503

EP - 1516

JO - Journal of Mechanical Science and Technology

JF - Journal of Mechanical Science and Technology

IS - 7

ER -

Measurement of developing turbulent flows in a 90-degree square bend with spanwise rotation

Abstract

Keywords

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this