Abstract
This paper describes a laboratory study of turbulence scales in mobile bed channel. The experimentation has been carried on curvilinear cross-section mobile bed channel with median sand size (d 50 = 0.418 mm). The present result investigated the different turbulence scale such as Kolmogorov, Taylor and integral scales. The percentage decrease in between Kolmogorov and Taylor scale has been increased as compared to the percentage decrease in between Taylor and integral scale, but the result is quite opposite in velocity scale. Flow turbulent scales indicate that the eddy size increases in integral scale because of increase in momentum transfer and decrease in energy dissipation linked to the evolution of the sediment transport. Evaluated Prandtl mixing length is well satisfied with theoretical curves given by Nezu and Nakagawa (Turbulence in open-channel flows, 1993) [1]. Sediment transport influenced decreased in von Karmann constant indicates the reduction in the mobile bed resistance to flow.
This is a preview of subscription content, log in via an institution.
Buying options
Tax calculation will be finalised at checkout
Purchases are for personal use only
Learn about institutional subscriptionsReferences
Nezu, I., Nakagawa, H.: Turbulence in Open-Channel Flows. Balkema, Rotterdam (1993)
Pope, S.B.: Turbulent Flows. Cambridge University Press, Cambridge (2000)
Goring, D.G., Nikora, V.I.: Despiking acoustic Doppler velocimeter data. J. Hydraul. Eng. 128, 117–126 (2002)
Fraser, R., Pack, C.J., Santavicca, D.A.: An LDV system for length scale measurement. In: Experiments in Fluids, vol. 4, pp. 150–152. Springer (1986)
Landahl, M.T., Christensen, E.M.: Turbulence and Random Process in Turbulence. Cambridge University Press (1986)
Sharma, A., Patel, M., Kumar, B.: Turbulent parameters and corresponding sediment transport in curved cross section channel. ISH J. Hydraul. Eng. 21, 333–342 (2015)
Yalin, M.S.: Mechanics of Sediment Transport. Pergamon, Oxford, U.K. (1976)
Shields, A.: Application of Similarity Principles and Turbulence Research to Bed-Load Movement. California Institute of Technology, Pasadena (1936)
Lane, E.W.: Progress report on studies on the design of stable channels by the bureau of reclamation. Proc. ASCE 79, 1–31 (1953)
Deshpande, V., Kumar, B.: Turbulent flow structures in alluvial channels with curved cross‐sections under conditions of downward seepage. ESPL 41, 1073–1087 (2016)
Lacey, R.W.J., Roy, A.G.: Fine-scale characterization of the turbulent shear layer of an in stream pebble cluster. J. Hydraul. Eng. 925–936 (2008)
Venditti, J.G., Church, M.A., Bennett, S.J.: Bed form initiation from a flat sand bed. J. Geophys. Res. 110, F1 (2011)
Author information
Authors and Affiliations
Corresponding author
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2017 Springer International Publishing AG
About this paper
Cite this paper
Sharma, A., Brahma, D., Patel, M., Kumar, B. (2017). Turbulent Scale and Mixing Length Measurement in Mobile Bed Channel. In: Garg, V., Singh, V., Raj, V. (eds) Development of Water Resources in India. Water Science and Technology Library, vol 75. Springer, Cham. https://doi.org/10.1007/978-3-319-55125-8_40
Download citation
DOI: https://doi.org/10.1007/978-3-319-55125-8_40
Published:
Publisher Name: Springer, Cham
Print ISBN: 978-3-319-55124-1
Online ISBN: 978-3-319-55125-8
eBook Packages: Earth and Environmental ScienceEarth and Environmental Science (R0)