Joanna Grzelak - Science profile - Bridge of Knowledge

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  • Influence of Holes Manufacture Technology on Perforated Plate Aerodynamics

    Transpiration flow is a very important and still open subject in many technical applications. Perforated walls are useful for the purpose of “flow control”, as well as for the cooling of walls and blades (effusive cooling) in gas turbines. We are still not able to include large numbers of holes in the numerical calculations and therefore we need physical models. Problems are related also to the quality of the holes in perforated...

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  • An Innovative Floating System with a Savonius Rotor as a Horizontal-Axis Wind Turbine

    - Polish Maritime Research - Year 2024

    In this project, an innovative wind turbine was designed for a floating plant. A large Savonius rotor was replaced with a double-rotor wind turbine implemented as a horizontal-axis turbine. This double rotor was positioned on the tip of a thrust plate and fixed to the deck of a catamaran. Simple 2D numerical simulations were performed to confirm the effectiveness of the concept. An analysis of the floating system configuration...

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