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Full-Text Articles in Hydraulic Engineering
Full-Water Column Turbulence Parameterization Of Stratified Waters In Southern Lake Michigan, Kyla A. Prendergast, Cary D. Troy, David Cannon
Full-Water Column Turbulence Parameterization Of Stratified Waters In Southern Lake Michigan, Kyla A. Prendergast, Cary D. Troy, David Cannon
The Summer Undergraduate Research Fellowship (SURF) Symposium
Full water column mean flow and turbulence structure was characterized at two stratified locations in Lake Michigan (a. Muskegon, MI; b. Michigan City, IN) in order to better understand the filtration potential of invasive quagga mussels. Invasive quagga mussels in Lake Michigan are filter feeders and can dramatically alter clarity as well as the biological/chemical characteristics of the water column. This filtering capacity is highly contingent on turbulence characteristics throughout the water column, which is poorly understood in the Great Lakes. Using velocity, temperature, and turbulence data collected from these locations, the structure of the water column turbulence was modeled …
Hydrodynamics And Transverse Mixing In A Rectangular Channel With Bed Forms And Bank Vegetation, M. Ghasemi, M. Heidarpour, C. Gualtieri, S. H. Tabatabaei
Hydrodynamics And Transverse Mixing In A Rectangular Channel With Bed Forms And Bank Vegetation, M. Ghasemi, M. Heidarpour, C. Gualtieri, S. H. Tabatabaei
International Congress on Environmental Modelling and Software
The analysis of contaminants mixing in natural channels is an important topic of Environmental Hydraulics. In the mid-field, the prediction of transverse mixing is complicated by other typical features of natural channels, such as bed forms and vegetation. The present experimental research investigated the effects of bedforms and banks vegetation on the structure of the turbulent flow field and on the transverse mixing process in a channel. A flume equipped with a set of ten 2D fixed dunes on the bed and rice stems at the banks was used. Detailed velocity measurements were performed using acoustic Doppler velocimetry. Mixing measurements …
Modeling Target Disinfection By-Product Dynamics In Indoor Swimming Pools, Barnard S. Mondal, Cary Troy, Mehrnaz Afifi, Shih-Chi Weng, Ernest R. Blatchley Iii
Modeling Target Disinfection By-Product Dynamics In Indoor Swimming Pools, Barnard S. Mondal, Cary Troy, Mehrnaz Afifi, Shih-Chi Weng, Ernest R. Blatchley Iii
The Summer Undergraduate Research Fellowship (SURF) Symposium
Chlorination is the primary disinfection method for swimming pools in the United States; however, chlorine also reacts with pollutants (e.g., sweat, urine and anthropogenic compounds) to form disinfection by-products (DBPs). Some DBPs are asthma causing (e.g. nitrogen-trichloride) and even carcinogens (e.g., trihalomethanes and nitrosamines). Consequently, exposure to DBPs poses health risks to patrons and staff in pool environments. Furthermore, volatilization of DBPs is enhanced by bather activity, but the relationship between activity and volatilization has yet been quantified such that the dynamic behavior of DBPs can be predicted. Therefore, the objective of this research is to …
Deep-Water Near-Bottom Turbulence In Lake Michigan: An Underwater Investigation, David J. Cannon, Cary Troy
Deep-Water Near-Bottom Turbulence In Lake Michigan: An Underwater Investigation, David J. Cannon, Cary Troy
The Summer Undergraduate Research Fellowship (SURF) Symposium
Motivated by a need to characterize near-bottom deep-water turbulence for an understanding of the filtration capabilities of invasive quagga mussels, an instrument tripod was deployed in Lake Michigan for six months in 60m of water to measure current velocities, with specific interest being paid to near-bottom (0.10 to 0.95 meters above bottom) velocities during the deployment. The deployment period (September 2012-April 2013) was characterized by very little stratification and a median temperature of about throughout the water column. A mean horizontal velocity of 3.6 cm/s with a standard deviation of 2 cm/s was also measured at 1 meter above the …