EXPERIMENTAL STUDY ON POWER OF SECONDARY FLOW AND VORTICES IN A 90 DEGREE BEND WITH SINGLE T SHAPE SPUR DIKE

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VAGHEFI M.; GHODSIAN M.

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Journal: Ferdowsi Civil Engineering Year:2010 | Volume:21 | Issue:2 Page(s): 111-128

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Title

EXPERIMENTAL STUDY ON POWER OF SECONDARY FLOW AND VORTICES IN A 90 DEGREE BEND WITH SINGLE T SHAPE SPUR DIKE

Author(s)

VAGHEFI M. | GHODSIAN M. | Issue Writer Certificate

Keywords

STRENGTH OF SECONDARY FLOWQ3

VORTICESQ2

T SHAPE SPUR DIKEQ2

90 DEGREE BENDQ2

Abstract

This paper deals with the results of experiments on strength of the secondary flow and vorticity in a channel bent with and wiuthout a spur dike located at section 75o of the bend. Experiments were conducted in a channel with a 90o bend. The results of experiments with spur dike for two cases of flat bed and scoured bed are compared. The three-dimensional Acoustic Doppler Velocimeter (ADV) was used for measuring the flow field. The comparison of three dimensional components of velocity was made in different sections and strength of the secondary flow and vorticity along the bend were analyzed.The results show that in the bend without the spur dike, The strength of the secondary flow and vorticity were maximum at about section 40 degree of the bend. While in the bend with the spur dike, maximum strength of the secondary flow and vorticity were maximum at about section 73.75 degree of the bend.The variations of secondary flow, vorticity and VORTICES in diiferent sections of the bend were also addressed in this paper.

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APA: Copy

VAGHEFI, M., & GHODSIAN, M.. (2010). EXPERIMENTAL STUDY ON POWER OF SECONDARY FLOW AND VORTICES IN A 90 DEGREE BEND WITH SINGLE T SHAPE SPUR DIKE. JOURNAL OF CIVIL ENGINEERING (JOURNAL OF SCHOOL OF ENGINEERING), 21(2), 111-128. SID. https://sid.ir/paper/195858/en

Vancouver: Copy

VAGHEFI M., GHODSIAN M.. EXPERIMENTAL STUDY ON POWER OF SECONDARY FLOW AND VORTICES IN A 90 DEGREE BEND WITH SINGLE T SHAPE SPUR DIKE. JOURNAL OF CIVIL ENGINEERING (JOURNAL OF SCHOOL OF ENGINEERING)[Internet]. 2010;21(2):111-128. Available from: https://sid.ir/paper/195858/en

IEEE: Copy

M. VAGHEFI, and M. GHODSIAN, “EXPERIMENTAL STUDY ON POWER OF SECONDARY FLOW AND VORTICES IN A 90 DEGREE BEND WITH SINGLE T SHAPE SPUR DIKE,” JOURNAL OF CIVIL ENGINEERING (JOURNAL OF SCHOOL OF ENGINEERING), vol. 21, no. 2, pp. 111–128, 2010, [Online]. Available: https://sid.ir/paper/195858/en

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