Flow around rectangular cylinders: pressure forces and wake frequencies
(1993) In Journal of Wind Engineering and Industrial Aerodynamics 49(1-3). p.187-196- Abstract
- This paper concerns an experimental investigation of the flow around and pressure forces on fixed (non-vibrating) rectangular cylinders at angles of attack 0° - 90°. Pressure forces and moments for cylinders with side ratios B / A = 1, 1.62, 2.5 and 3 (shortest side A = 20 ram) were estimated from measurements of static pressure distributions at mid-span. Wake frequencies and associated Strouhal numbers were determined from hot wire measurements in the near-wake regions (A = 4 and 20 mm). With the smaller cylinders 12 side ratios within B / A = 1 - 5 were investigated. The free stream turbulence intensity was less than 0.06%, blockages less than 5% and aspect ratios L / A greater than 50. Reynolds numbers, based on A, ranged from about... (More)
- This paper concerns an experimental investigation of the flow around and pressure forces on fixed (non-vibrating) rectangular cylinders at angles of attack 0° - 90°. Pressure forces and moments for cylinders with side ratios B / A = 1, 1.62, 2.5 and 3 (shortest side A = 20 ram) were estimated from measurements of static pressure distributions at mid-span. Wake frequencies and associated Strouhal numbers were determined from hot wire measurements in the near-wake regions (A = 4 and 20 mm). With the smaller cylinders 12 side ratios within B / A = 1 - 5 were investigated. The free stream turbulence intensity was less than 0.06%, blockages less than 5% and aspect ratios L / A greater than 50. Reynolds numbers, based on A, ranged from about Re = 400 to Re -- 3 × 104 (pressure measurements from about Re = 3 × 103). For the square cylinder, the measured pressure forces were used for calculations of quasi-steady galloping response in the plunging mode. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/48a94e64-6eab-4820-8ce0-149dc1ba67e4
- author
- Norberg, Christoffer LU
- publishing date
- 1993
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Journal of Wind Engineering and Industrial Aerodynamics
- volume
- 49
- issue
- 1-3
- pages
- 187 - 196
- publisher
- Elsevier
- external identifiers
-
- scopus:0027791119
- DOI
- 10.1016/0167-6105(93)90014-F
- language
- English
- LU publication?
- no
- id
- 48a94e64-6eab-4820-8ce0-149dc1ba67e4
- date added to LUP
- 2022-10-13 16:48:36
- date last changed
- 2022-10-14 14:19:26
@article{48a94e64-6eab-4820-8ce0-149dc1ba67e4, abstract = {{This paper concerns an experimental investigation of the flow around and pressure forces on fixed (non-vibrating) rectangular cylinders at angles of attack 0° - 90°. Pressure forces and moments for cylinders with side ratios B / A = 1, 1.62, 2.5 and 3 (shortest side A = 20 ram) were estimated from measurements of static pressure distributions at mid-span. Wake frequencies and associated Strouhal numbers were determined from hot wire measurements in the near-wake regions (A = 4 and 20 mm). With the smaller cylinders 12 side ratios within B / A = 1 - 5 were investigated. The free stream turbulence intensity was less than 0.06%, blockages less than 5% and aspect ratios L / A greater than 50. Reynolds numbers, based on A, ranged from about <i>Re</i> = 400 to <i>Re</i> -- 3 × 10<sup>4</sup> (pressure measurements from about <i>Re</i> = 3 × 10<sup>3</sup>). For the square cylinder, the measured pressure forces were used for calculations of quasi-steady galloping response in the plunging mode.}}, author = {{Norberg, Christoffer}}, language = {{eng}}, number = {{1-3}}, pages = {{187--196}}, publisher = {{Elsevier}}, series = {{Journal of Wind Engineering and Industrial Aerodynamics}}, title = {{Flow around rectangular cylinders: pressure forces and wake frequencies}}, url = {{http://dx.doi.org/10.1016/0167-6105(93)90014-F}}, doi = {{10.1016/0167-6105(93)90014-F}}, volume = {{49}}, year = {{1993}}, }