Current and Turbulence Measurement with Collocated ADP and Turbulence Profiler Data

Hanna Torrens-Spence, Pal Schmitt, Pauline MacKinnon, Bjoern Elsaesser

    Research output: Contribution to conferencePaperpeer-review

    1 Citation (Scopus)

    Abstract

    This paper presents a current and turbulence measurement campaign conducted at a test site in an energetic tidal channel known as Strangford Narrows, Northern Ireland. The data was collected as part of the MaRINET project funded by the EU under their FP7 framework. It was a collaborative effort between Queen’s University Belfast, SCHOTTEL and Fraunhofer IWES. The site is highly turbulent with a strong shear flow. Longer term measurements of the flow regime were made using a bottom mounted Acoustic Doppler Profiler (ADP). During a specific turbulence measurement campaign, two collocated in- struments were used to measure incoming flow characteristics: an ADP (Aquadopp, Nortek) and a turbulence profiler (MicroRider, Rockland Scientific International). The instruments recorded the same incoming flow, so that direct comparisons between the data can be made. In this study the methodology adopted to deploy the instruments is presented. The resulting turbulence measurements using the different types of instrumentation are compared and the usefulness of each instrument for the relevant range of applications is discussed. The paper shows the ranges of the frequency spectra obtained using the different instruments, with the combined measurements providing insight into the structure of the turbulence across a wide range of scales.
    Original languageEnglish
    Number of pages8
    Publication statusPublished - 04 Mar 2015
    EventThe 2015 IEEE/OES Eleventh Current, Waves and Turbulence Measurment Workshop - Florida, St. Peterburg, United States
    Duration: 02 Mar 201506 Mar 2015

    Conference

    ConferenceThe 2015 IEEE/OES Eleventh Current, Waves and Turbulence Measurment Workshop
    CountryUnited States
    CitySt. Peterburg
    Period02/03/201506/03/2015

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