Previous studies of the effects of manholes on longitudinal dispersion has concentrated on the spreading of solutes. This papers presents new data describing the influence of a surcharged and free-flowing manhole structure on the longitudinal dispersion of a fine suspended material. The effects of benching within the manhole structure are also illustrated. Laser Induced Fluorescence (LIF) techniques have been used to provide a qualitative description of the mixing processes present within a surcharged manhole. Nephelometric results have provided estimates of the parameters required to simulate the mixing effects using either increase in variance or aggregated dead zone techniques. A preliminary attempt at describing these observations using available software is discussed and recommendations for future developments are made.
Research Article|January 01 1998
An investigation of fine sediment mixing within free-flowing and surcharged manholes
Water Sci Technol (1998) 37 (1): 215-222.
I. Guymer, R. O'Brien, O. Mark, P. Dennis; An investigation of fine sediment mixing within free-flowing and surcharged manholes. Water Sci Technol 1 January 1998; 37 (1): 215–222. doi: https://doi.org/10.2166/wst.1998.0052
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