Search
CSV
RISFlow Distortion Into the Core Engine for an Installed Variable Pitch Fan in Reverse Thrust Mode
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The flow distortion at core engine entry for a variable pitch fan (VPF) in reverse thrust mode is described from a realistic flow field obtained using an integrated airframe-engine model. The model includes the VPF, core ...
Real Time Aero elasticity Simulation of Open Rotors With Slender Blades for the Multidisciplinary Design of Rotorcraft
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This paper elaborates on the theoretical development of a mathematical approach, targeting the realtime simulation of aeroelasticity for open rotors with slender blades, as employed in the majority of rotorcraft. A Lagrangian ...
On the Use of an Inflatable Rubber Lip to Improve the Reverse Thrust Flow Field in a Variable Pitch Fan
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The installed variable pitch fan (VPF) reverse thrust flow field is obtained from the flow solution of an integrated airframe-engine research model for the complete reverser engagement regime during the aircraft landing ...
A Preliminary Design Tradeoff Study for an Advanced Propulsion Technology Rotorcraft at Mission Level
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This paper aims to present an integrated rotorcraft (RC) multidisciplinary simulation framework, deployed for the comprehensive assessment of combined RC–powerplant systems at mission level. The proposed methodology ...
Estimation of Resultant Airframe Forces for a Variable Pitch Fan Operating in Reverse Thrust Mode
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The resultant forces with a reverse thrust variable pitch fan (VPF) during the aircraft landing run are computed from the installed reverse thrust flow field obtained from an airframeengineVPF research model. The research ...
Assessment of Thermo-Electric Power Plants for Rotorcraft Application
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This paper assesses a parallel electric hybrid propulsion system utilizing simple and recuperated cycle gas turbine configurations. An adapted engine model capable to reproduce a turboshaft engine steady state and transient ...
Assessment of Engine Operability and Overall Performance for Parallel Hybrid Electric Propulsion Systems for a Single-Aisle Aircraft
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This paper aims to assess the gas turbine operability and overall hybrid electric propulsion system (HEPS) performance for a parallel configuration applied to a 150 passenger single-aisle aircraft. Two arrangements are ...
Optimal Control of a Compound Rotorcraft for Engine Performance Enhancement
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Demands for rotorcraft with increased flight speed, improved operational performance and reduced environmental impact have led to a drive in research and development of alternative concepts. Compound rotorcraft overcome ...
On the Flow Physics During the Transition of a Variable Pitch Fan From Nominal Operation to Reverse Thrust Mode
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The flow field during the transition of variable pitch fans (VPFs) from nominal operation to reverse thrust mode at typical “Approach Idle” engine power setting and aircraft touchdown speed of 140 knots is described in ...
Insights Into the Flow Field and Performance of a Boundary Layer Pump
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A flow field analysis of a realistic, integrated, multidisk boundary layer pump as is necessary for investigating the reasons for typically quoted low efficiencies in such pumps is described. The study focuses on the ...