NDLI: A numerical method for calculating the flow-induced vibration of the microstructure profiler

Content Provider	IEEE Xplore Digital Library
Author	Yuhong Liu Shiquan Lan Yanhui Wang Shijun Song Zhiliang Wu Hongwei Zhang
Copyright Year	2012
Description	Author affiliation: Key Lab. of Mechanism Theor. & Equip. Design of Minist. of Educ., Tianjin Univ., Tianjin, China (Yuhong Liu; Shiquan Lan; Yanhui Wang; Shijun Song; Zhiliang Wu; Hongwei Zhang)
Abstract	The flow-induced vibration is the determinant factor of the low end detection limit of microstructure profiler detecting the dissipation rate of turbulence kinetic energy. In the present investigation, a numerical method is proposed to calculate the flow-induced vibration of the microstructure profiler. In the method, the fluid-solid coupling calculation is conducted using ANSYS-CFX codes. The active force generated by the vortex shedding during the profiler sinking is first calculated using the CFX code. By applying the active force to the profiler in the environment of ANSYS, the vibration frequency and the acceleration of the profiler in horizontal direction are then obtained. To validate the numerical method, sea tests are executed using the free-falling microstructure profiler developed by Tianjin University in the Western Pacific. The acceleration signals of the flow-induced vibration obtained from the numerical method have good agreement with those from the sea tests. The present investigation provides a convenient and effective method to predict the flow-induced vibration and further estimate the low end detection limit of the microstructure profiler in design stage.
Sponsorship	Oceanic Eng. Soc.
Starting Page	1
Ending Page	5
File Size	819610
Page Count	5
File Format	PDF
ISBN	9781467308298
e-ISBN	9781467308311
DOI	10.1109/OCEANS.2012.6405065
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2012-10-14
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Vibrations Acceleration Microstructure Probes Couplings Numerical models Sea measurements dissipation rate Microstructure profiler flow-induced vibration fluid-solid coupling low end detection limit
Content Type	Text
Resource Type	Article

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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