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http://hdl.handle.net/10397/80110
Title: | Suppression of fluid forces on two staggered cylinders | Authors: | Alam, MdM Zhou Y |
Issue Date: | 2013 | Source: | Procedia engineering, 2013, v. 56, p. 173-178 | Abstract: | An investigation is conducted to suppress flow-induced forces on two identical cylinders (diameter D = 49 mm) at stagger angle α = 0° ∼ 180° and gap spacing ratio T/D = 0.1 ∼ 5, where T is the gap width between the cylinders. In order to suppress fluid forces, two tripwires, each of 5 mm, were attached on each cylinder at azimuthal angle β =±30°. Time-mean drag (CD) and fluctuating drag (C Df) and lift (CLf) on two tripped cylinders were measured and compared with those on plain cylinders. Flow visualization test was also conducted to observe flow structures around the cylinders. CD, C Df and CLf all for the plain cylinders are strong function of a and T/D due to six different interaction mechanisms. On the other hand, the tripped cylinders interfere weakly each other, resulting in insignificant variation in forces with α and T/D. Tripwires suppress forces on the cylinders remarkably. | Keywords: | Drag Interaction Lift Supression Trip wires Two cylinders |
Publisher: | Elsevier | Journal: | Procedia engineering | EISSN: | 1877-7058 | DOI: | 10.1016/j.proeng.2013.03.104 | Description: | 5th Bangladesh Society of Mechanical Engineers (BSME) International Conference on Thermal Engineering, ICTE 2012, Dhaka, 21-23 December 2012 | Rights: | © 2013 The Authors. Published by Elsevier Ltd. Open access under CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/3.0/). Selection and peer review under responsibility of the Bangladesh Society of Mechanical Engineers The following publication Alam, M. M., & Zhou, Y. (2013). Suppression of fluid forces on two staggered cylinders. Procedia engineering, 2013, 56, 173-178 is available at https://dx.doi.org/10.1016/j.proeng.2013.03.104 |
Appears in Collections: | Conference Paper |
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