Characteristics of turbulent flow in a T-junction

Jungwoo Kim; Jin Su Kim; Jin Ho Lee

Characteristics of turbulent flow in a T-junction

Jungwoo Kim, Jin Su Kim, Jin Ho Lee

Dept. of Mechanical System and Design Engineering

Korea Institute of Nuclear Safety

Research output: Contribution to conference › Paper › peer-review

Abstract

In the present study, a large eddy simulation, at conditions of experiments by Vattenfall, was performed in order to investigate the phenomenon of turbulent mixing affecting the thermal fatigue in a T-junction. Particular attention is paid to the effect of M_R on the flow characteristics in a T-junction. To do so, two different M_R 's (0.114 and 1.04 corresponding to wall jet and impinging jet) are considered. To investigate the turbulence characteristics related to the thermal fatigue phenomenon, the mean and rms streamwise velocity distributions are examined. Also, the frequency characteristics which are known to be one important parameter for thermal fatigue are seen. The dominant frequency scaled with the bulk property in the downstream region of the junction shows an increased trend with respect to M_R.

Original language	English
State	Published - 2013
Event	8th International Symposium on Turbulence and Shear Flow Phenomena, TSFP 2013 - Poitiers, France Duration: 28 Aug 2013 → 30 Aug 2013

Conference

Conference	8th International Symposium on Turbulence and Shear Flow Phenomena, TSFP 2013
Country/Territory	France
City	Poitiers
Period	28/08/13 → 30/08/13

Cite this

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title = "Characteristics of turbulent flow in a T-junction",

abstract = "In the present study, a large eddy simulation, at conditions of experiments by Vattenfall, was performed in order to investigate the phenomenon of turbulent mixing affecting the thermal fatigue in a T-junction. Particular attention is paid to the effect of MR on the flow characteristics in a T-junction. To do so, two different MR 's (0.114 and 1.04 corresponding to wall jet and impinging jet) are considered. To investigate the turbulence characteristics related to the thermal fatigue phenomenon, the mean and rms streamwise velocity distributions are examined. Also, the frequency characteristics which are known to be one important parameter for thermal fatigue are seen. The dominant frequency scaled with the bulk property in the downstream region of the junction shows an increased trend with respect to MR.",

author = "Jungwoo Kim and Kim, \{Jin Su\} and Lee, \{Jin Ho\}",

year = "2013",

language = "English",

note = "8th International Symposium on Turbulence and Shear Flow Phenomena, TSFP 2013 ; Conference date: 28-08-2013 Through 30-08-2013",

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TY - CONF

T1 - Characteristics of turbulent flow in a T-junction

AU - Kim, Jungwoo

AU - Kim, Jin Su

AU - Lee, Jin Ho

PY - 2013

Y1 - 2013

N2 - In the present study, a large eddy simulation, at conditions of experiments by Vattenfall, was performed in order to investigate the phenomenon of turbulent mixing affecting the thermal fatigue in a T-junction. Particular attention is paid to the effect of MR on the flow characteristics in a T-junction. To do so, two different MR 's (0.114 and 1.04 corresponding to wall jet and impinging jet) are considered. To investigate the turbulence characteristics related to the thermal fatigue phenomenon, the mean and rms streamwise velocity distributions are examined. Also, the frequency characteristics which are known to be one important parameter for thermal fatigue are seen. The dominant frequency scaled with the bulk property in the downstream region of the junction shows an increased trend with respect to MR.

AB - In the present study, a large eddy simulation, at conditions of experiments by Vattenfall, was performed in order to investigate the phenomenon of turbulent mixing affecting the thermal fatigue in a T-junction. Particular attention is paid to the effect of MR on the flow characteristics in a T-junction. To do so, two different MR 's (0.114 and 1.04 corresponding to wall jet and impinging jet) are considered. To investigate the turbulence characteristics related to the thermal fatigue phenomenon, the mean and rms streamwise velocity distributions are examined. Also, the frequency characteristics which are known to be one important parameter for thermal fatigue are seen. The dominant frequency scaled with the bulk property in the downstream region of the junction shows an increased trend with respect to MR.

UR - https://www.scopus.com/pages/publications/85034227835

M3 - Paper

AN - SCOPUS:85034227835

T2 - 8th International Symposium on Turbulence and Shear Flow Phenomena, TSFP 2013

Y2 - 28 August 2013 through 30 August 2013

ER -

Characteristics of turbulent flow in a T-junction

Abstract

Conference

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