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Numerical Investigation of Flow around Two Tandem Identical Trapezoidal Cylinders
Joint Authors
Du, Run
Wang, Yupu
Wang, Shubiao
Deng, Yong
Cheng, Wenming
Source
Mathematical Problems in Engineering
Issue
Vol. 2020, Issue 2020 (31 Dec. 2020), pp.1-13, 13 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2020-04-27
Country of Publication
Egypt
No. of Pages
13
Main Subjects
Abstract EN
The trapezoidal beam structure is ubiquitous in giant engineering equipment, while their aerodynamic characteristics have not been clearly understood.
Numerical simulation method was adopted to investigate the flow around two tandem identical trapezoidal cylinders.
The study was conducted using a Reynolds number of 2.2 × 104, and with a spacing ratio varying from 0.5 to 10.
The incompressible two-dimensional finite volume method was used for solving Reynolds-Averaged Navier–Stokes (RANS) equations with realizable k−ε model.
The effects of cylinder geometry and spacing between the cylinders on aerodynamic characteristics, unsteady flow patterns, time-averaged flow characteristics, and flow instability was studied.
The results show that the flow around the two tandem trapezoidal cylinders is highly dependent on the spacing ratio.
The flow modes can be classified into: extended-body regime (Mode I, S∗ ≤ 1), reattachment regime (Mode II, 2 ≤ S∗ ≤ 3), and binary regime (Mode III, S∗ ≥ 4).
We explored their respective flow characteristics and distinctions through the force/pressure coefficients, time-average streamwise velocity, and the flow field evolution.
American Psychological Association (APA)
Wang, Yupu& Cheng, Wenming& Du, Run& Wang, Shubiao& Deng, Yong. 2020. Numerical Investigation of Flow around Two Tandem Identical Trapezoidal Cylinders. Mathematical Problems in Engineering،Vol. 2020, no. 2020, pp.1-13.
https://search.emarefa.net/detail/BIM-1194647
Modern Language Association (MLA)
Wang, Yupu…[et al.]. Numerical Investigation of Flow around Two Tandem Identical Trapezoidal Cylinders. Mathematical Problems in Engineering No. 2020 (2020), pp.1-13.
https://search.emarefa.net/detail/BIM-1194647
American Medical Association (AMA)
Wang, Yupu& Cheng, Wenming& Du, Run& Wang, Shubiao& Deng, Yong. Numerical Investigation of Flow around Two Tandem Identical Trapezoidal Cylinders. Mathematical Problems in Engineering. 2020. Vol. 2020, no. 2020, pp.1-13.
https://search.emarefa.net/detail/BIM-1194647
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1194647