In this report the diffusor geometry for a Pitot-Tube Jet pump (PTJ pump) is optimized, using 3D, steady CFD methods (software: ANSYS Fluent) as well as mesh morphing (software: Sculptor). The design point is Q = 16 m3/h. A complex optimization loop is set up, which takes geometric constraints, as well as manufacturing limits into account. The optimization is multi-objective and best practice guidelines are derived for future diffusor designs with respect to the reduction of total pressure losses and the diffusor displacement in the fluid of the rotor cavity. Both, advantages and disadvantages, are listed and evaluated.
New Design Approach for Pitot-Tube Jet Pump
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Meyer, J, Daróczy, L, & Thévenin, D. "New Design Approach for Pitot-Tube Jet Pump." Proceedings of the ASME Turbo Expo 2014: Turbine Technical Conference and Exposition. Volume 1A: Aircraft Engine; Fans and Blowers. Düsseldorf, Germany. June 16–20, 2014. V01AT10A004. ASME. https://doi.org/10.1115/GT2014-25310
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