Effect of rough surface on flow characteristics of turbulent boundary layer
POSTER
Abstract
In this study, the characteristics of turbulent boundary layer in flow field on the rough surface were examined in boundary layer wind tunnel. The cube arrays patch has a pattern of staggered and aligned towards the windward direction. The boundary layer characteristics such as mean velocity, turbulent quantities were measured using thermal anemometry. Results show that turbulent boundary layer have been generated successfully on the roughness surface, and the boundary layer characteristics vary depending on the pattern of surface roughness. In order to validate the measurement data in wind tunnel, the turbulent boundary layer was also simulated using the numerical simulation.
*This work was supported by “Human Resources Program in Energy Technology” of the Korea Institute of Energy Technology Evaluation and Planning (KETEP), granted financial resource from the Ministry of Trade, Industry & Energy, Republic of Korea (No. 20164030201230). In addition, this work was supported by the National Research Foundation of Korea (NRF) grant funded by the Korea government (MSIP) (No. 2016R1A2B1013820). This research was also supported by the Fire Fighting Safety & 119 Rescue Technology Research and Development Program funded by the Ministry of Public Safety and Security (MPSS-2015-79).
Presenters
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KwonHo Park
- Pusan Natl Univ