| Issue |
MATEC Web Conf.
Volume 291, 2019
2019 The 3rd International Conference on Mechanical, System and Control Engineering (ICMSC 2019)
|
|
|---|---|---|
| Article Number | 02001 | |
| Number of page(s) | 7 | |
| Section | Mechanical Engineering | |
| DOI | https://doi.org/10.1051/matecconf/201929102001 | |
| Published online | 28 August 2019 | |
The Investigation of Mutual Interference Vortex Flow around Two Circular Cylinders by Flow Visualization and Pressure Measurement
1 National Defense Academy of Japan, Department of Mechanical Engineering, 1-10-20 Hashirimizu, Yokosuka, 239-8686, Japan
2 CTU in Prague, FME, Department of Fluid Dynamics and Thermodynamics, Technická 4, 1666 07, Prague, Czech Republic
a Corresponding author: yokoi@nda.ac.jp
In order to understand the aspect of the mutual interference flow from two circular cylinders, the visual observation experiment and the pressure measurement experiment were performed by use a water flow apparatus. Two circular cylinders with a diameter of D=10mm were used, and they have been arranged at staggered or tandem. The flow velocity was U=0.25m/s (Re=UD/í, í is kinematic viscosity of fluid). The dye oozing streak method was used in the visualization experiment. In the pressure measurement experiment, the pressure on the surface of a circular cylinder was detected by the single tube manometer, and measurement was performed by image processing using a computer. As a result, distribution of the circular cylinder surface pressure coefficient CP corresponding to the flow pattern and it in each circular cylinder arrangement was obtained. The drag coefficient CD was calculated from the pressure coefficient CP, and change of the resistance in each arrangement was found.
© The Authors, published by EDP Sciences, 2019
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