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Submitted to: Book Chapter
Publication Type: Book / Chapter Publication Acceptance Date: 3/5/2014 Publication Date: 8/13/2017 Citation: Wren, D.G. 2017. 5.3.1 Physical sampling for suspended sediment. In: Experimental Hydraulics: Flows, Methods, Instrumentation, Data Analysis & Management, Vol II Instrumentation and Measurement Techniques, M. Muste, J. Aberle, D. Admiraal, R. Ettema, M.H. Garcia, D. Lyn, V. Nikora, and C. Rennie (Eds.). CRC Press/Balkema. PP 276-279. Interpretive Summary: Laboratory and field experiments are critical for understanding and advancing many different aspects of hydraulics and related disciplines. Often studies are carried out in laboratories under less than ideal conditions that may significantly influence experimental outcomes and with instruments not always well suited for the measurement environment . These limitations need to be understood and addressed with appropriate methods. The evolution of new instrumentation has not been supported by accessible and well-documented literature on their use. Additionally, advances in acoustic and optical instrumentation make complex field experiments increasingly feasible. While field instrumentation and experimentation have many similarities to those used in laboratory, the literature on field experimentation is relatively scarce and scattered. Practical information on many aspects of experimental hydraulics presently can only be found in scientific papers or a few dated monographs on laboratory practice. This chapter provides detailed guidance for a practitioner who needs to collect accurate, representative samples of the water/sediment mixture from flowing water. Technical Abstract: A comprehensive guide to experimental hydraulics is long overdue. The proposed book first highlights the intrinsic connection between theory and experiment,emphasizing the need for their complementary use. Described next are considerations for the effective design of experiments, including the selection of facilities and instruments needed for less common experiments. The book devotes considerable space to introducing instrumentation for various types of hydraulics experiments. Conventional instruments are briefly introduced in terms of their capabilities and limitations as guidance on the best sources of information describing them in full will be provided. The more recent instrumentation will receive greater attention through descriptions of operating principles, capabilities and limitations and case studies. Subsequently covered are essential aspects of data processing, uncertainty assessment, and, reporting, and management of experimental data using hydroinformatics tool. |
