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Test and evaluation of a moored microstructure recorder |
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| Authors: | Chuan Tian Shuxin Wang Shoude Guan Qingxuan Yang Xiaoyang Xu |
| Affiliation: | 1. School of Mechanical Engineering, Tianjin University, Tianjin, 300072, China 2. Physical Oceanography Laboratory, Ocean University of China, Qingdao, 266100, China 3. College of Engineering, Ocean University of China, Qingdao, 266100, China |
| Abstract: | A new moored microstructure recorder (MMR) is designed, developed, tested, and evaluated. The MMR directly measures the high-frequency shear of velocity fluctuations, with which we can estimate the dissipation rate of turbulent kinetic energy. We summarize and discuss methods for estimating the turbulent kinetic energy dissipation rate. Instrument body vibrations contaminate the shear signal in an ocean field experiment, and a compensating correction successfully removes this contamination. In both tank test and ocean field experiment, the dissipation rate measured with the MMR agreed well with that measured using other instruments. |
| Keywords: | moored microstructure recorder （MMR） dissipation rate turbulent kinetic energy shear ofvelocity fluctuations compensating correction |
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