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towTankAssm
Water Tow Tank
Tow Tank devices are used in testing boat and aerodynamic models for things like aerodynamic drag and lift. These devices typically cost around $20,000 which is the reason not every school has access to such a device. Here in the University of Rochester, we don't have our own tow tank device, but we do have a swimming pool, and a passion for solving problems. In this post, we are showcasing our prototype for a tow tank that can be assembled and used in the gym swimming pool. The cost of the prototype and the completed final device is less than $1000!
81 Moses-Saunders Dam, St. Lawrence Seaway, Lake Ontario
Verifying Lake Ontario’s Water Level
The Caldwell-Fay equation (2002) attempts to model what Lake Ontario's current water level would be if dam construction had never taken place along the St. Lawrence Seaway (i.e. the natural hydraulic state of the lake). Newly unearthed Lake Ontario data going back to the 1860s has been discovered, and we had the rare opportunity to be the first to digitize and publicly analyze it. Since this data set predates any dam construction it actually captures the lake's natural state. Therefore it can be used to verify Caldwell-Fey's equation which is being used to govern the lake's inflow and outflow rate on a daily basis.
G.W. Lisk existing nozzle with parameters used to run their simulations.
Natural Gas Mixer Redesign
A renewed focus on environmental concerns means that fuel efficiency and emissions of engines are of significant importance. A current design for a mixing nozzle exists, but the fuel residence could be higher and the pressure drop could be lower. A longer fuel residence time ensures smooth distribution of fuel and a more efficient burn. A lower pressure drop means that less energy is lost by the motion of the fluid through the mixer.