Search Results - "Zachos, Pavlos K."

Non-intrusive flow diagnostics for unsteady inlet flow distortion measurements in novel aircraft architectures by Doll, Ulrich, Migliorini, Matteo, Baikie, Joni, Zachos, Pavlos K., Röhle, Ingo, Melnikov, Sergey, Steinbock, Jonas, Dues, Michael, Kapulla, Ralf, MacManus, David G., Lawson, Nicholas J.

“…Inlet flow distortion is expected to play a major role in future aircraft architectures where complex air induction systems are required to couple the engine…”
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Aerodynamic Instabilities in High-Speed Air Intakes and Their Role in Propulsion System Integration by Philippou, Aristia L., Zachos, Pavlos K., MacManus, David G.

“…High-speed air intakes often exhibit intricate flow patterns, with a specific type of flow instability known as ‘buzz’, characterized by unsteady shock…”
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Application of oil and dye flow visualization in incompressible turbomachinery flows by Terzis, Alexandros, Zachos, Pavlos K., Charnley, Bernard A., Kalfas, Anestis I.

“…Flow visualization is one of many available tools in experimental fluid mechanics and is used from the primary stages of fluid mechanics research in order to…”
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Design Point Performance and Optimization of Humid Air Turbine Power Plants by Brighenti, Giovanni, Orts-Gonzalez, Pau, Sanchez-de-Leon, Luis, Zachos, Pavlos

“…With the recent drive towards higher thermal efficiencies and lower emission levels in the power generation market, advanced cycle power plants have become an…”
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The impact of heat exchanger degradation on the performance of a humid air turbine system for power generation by Orts-Gonzalez, Pau Lluis, Zachos, Pavlos K., Brighenti, Giovanni D.

“…•Effect of the air-water heat exchanger’s degradation on the performance of the reheated humid air turbine is evaluated.•Cycle irreversibilities associated…”
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Towards time-resolved multi-property measurements by filtered Rayleigh scattering: diagnostic approach and verification by Doll, Ulrich, Kapulla, Ralf, Dues, Michael, Steinbock, Jonas, Melnikov, Sergey, Röhle, Ingo, Migliorini, Matteo, Zachos, Pavlos K.

“…The use of multiple perspective views is a possible pathway towards the combined measurement of multiple time-resolved flow properties by filtered Rayleigh…”
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Part-load performance modelling of a reheated humid air turbine power cycle by Brighenti, Giovanni D., Zachos, Pavlos K., Orts-Gonzalez, Pau Lluis

“…•A novel method for the part-load performance simulation of a reheated HAT system is described.•Predicted performance is shown across a range of turbine inlet…”
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Techno-economic analysis of a reheated humid air turbine by Orts-Gonzalez, Pau Lluis, Zachos, Pavlos K., Brighenti, Giovanni D.

“…•Economiser and recuperator dictate the economic metrics of a reheated humid air turbine system.•Fuel and equipment purchase cost drive the average cost of the…”
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Unsteady characteristics of S-duct intake flow distortion by Gil-Prieto, Daniel, Zachos, Pavlos K., MacManus, David G., McLelland, Grant

“…The unsteady distorted flow fields generated within convoluted intakes can have a detrimental effect on the stability of an aero-engine. The frequency…”
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Assessment methods for unsteady flow distortion in aero-engine intakes by Gil-Prieto, Daniel, MacManus, David G., Zachos, Pavlos K., Bautista, Abian

“…Peak events of unsteady total pressure and swirl distortion generated within S-duct intakes can affect the engine stability, even when within acceptable mean…”
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Advancements on the use of Filtered Rayleigh Scattering (FRS) with Machine learning methods for flow distortion in Aero-Engine intakes by Migliorini, Matteo, Doll, Ulrich, Lawson, Nicholas J., Melnikov, Sergey M., Steinbock, Jonas, Dues, Michael, Zachos, Pavlos K., Röhle, Ingo, MacManus, David G.

“…•Applied Filtered Rayleigh Scattering (FRS) for multi-quantity flow distortion measurements in aero-engine intakes.•FRS measurements can characterize…”
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