Browsing by Author "Chiereghin, Nicola"

Browsing by Author "Chiereghin, Nicola"

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  • Complex aero-engine intake ducts and dynamic distortion 
    MacManus, David G.; Chiereghin, Nicola; Gil-Prieto, Daniel; Zachos, Pavlos K. (AIAA, 2015-06-19)
    For many embedded and partially-embedded engine systems, the complexity of the flow field associated with convoluted intakes presents an area of notable research challenges. The convolution of the intake duct introduces ...
  • Complex aero-engine intake ducts and dynamic distortion 
    MacManus, David G.; Chiereghin, Nicola; Gil-Prieto, Daniel; Zachos, Pavlos K. (American Institute of Aeronautics and Astronautics, 2017-03-29)
    For many embedded engine systems, the intake duct geometry introduces flow distortion and unsteadiness, which must be understood when designing the turbomachinery components. The aim of this work is to investigate the ...
  • Delayed detached-eddy simulation and particle image velocimetry investigation of S-Duct flow distortion 
    Gil-Prieto, Daniel; MacManus, David G.; Zachos, Pavlos K.; Tanguy, Geoffrey; Wilson, François; Chiereghin, Nicola (American Institute of Aeronautics and Astronautics, 2017-03-31)
    The dynamic flow distortion generated within convoluted aeroengine intakes can affect the performance and operability of the engine. There is a need for a better understanding of the main flow mechanisms that promote flow ...
  • Dynamic distortion simulations for curved aeronautical intakes 
    Chiereghin, Nicola; MacManus, David G.; Savill, Mark; Dupuis, Romain (Royal Aeronautical Society (RAeS), 2015-07)
    This research focuses on the numerical simulation of the dynamic distortion in highly convoluted aeronautic intakes and extends the current knowledge with a systematic study of the influence of duct diameter, Mach number ...
  • Dynamic flow distortion investigation in an S-duct using DDES and SPIV data 
    Gil-Prieto, Daniel; MacManus, David G.; Zachos, Pavlos K.; Tanguy, Geoffrey; Wilson, Francois; Chiereghin, Nicola (American Institute of Aeronautics and Astronautics, 2016-06-30)
    The dynamic flow distortion generated within convoluted aero-engine intakes can affect the performance and operability of the engine. There is a need for a better understanding of the main flow mechanisms which promote ...
  • Flow distortion measurements in convoluted aero engine intakes 
    Zachos, Pavlos K.; MacManus, David G.; Chiereghin, Nicola (AIAA, 2015-06-19)
    The unsteady flow fields generated by convoluted aero engine intakes are major sources of instabilities that can compromise the performance of the down stream turbo machinery components. Hence, there exists a need for high ...
  • Flow distortion measurements in convoluted aero engine intakes 
    Zachos, Pavlos K.; MacManus, David G.; Chiereghin, Nicola (American Institute of Aeronautics and Astronautics, 2016-07-07)
    The unsteady flowfields generated by convoluted aero engine intakes are major sources of instabilities that can compromise the performance of the downstream turbomachinery components. Hence, there exists a need for high ...
  • Shape optimization of a curved duct with Free Form Deformations 
    Chiereghin, Nicola; Guglielmi, Luigi; Savill, Mark; Manca, Enrico; Rigobello, Aurora; Barison, Marco; Benini, Ernesto (AIAA, 2017-06-09)
    The Free Form Deformation method was applied to a S-duct geometry to reduce total pressure losses and flow distortion. The deformation method was coupled with a multiobjective genetic algorithm to optimize the shape of a ...