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  • Aerodynamic optimisation of civil aero-engine nacelles by dimensionality reduction and multi-fidelity techniques 
    Tejero, Fernando; MacManus, David G.; Hueso Rebassa, Josep; Sanchez Moreno, Francisco; Goulos, Ioannis; Sheaf, Christopher T. (Emerald, 2022-09-30)
    Purpose - Aerodynamic shape optimisation is complex due to the high dimensionality of the problem, the associated non-linearity and its large computational cost. These three aspects have an impact on the overall time of ...
  • Aerodynamic optimisation of civil aero-engine nacelles by dimensionality reduction and multi-fidelity techniques 
    Tejero, Fernando; MacManus, David G.; Hueso Rebassa, Josep; Sanchez Moreno, Francisco; Goulos, Ioannis; Sheaf, Christopher T. (Unknown, 2022-03-30)
    Aerodynamic shape optimisation is complex due to the high dimensionality of the problem, the associated nonlinearity and its large computational cost. These three aspects have an impact on the overall time of the design ...
  • Aerodynamic optimization of the exhaust system of an aft-mounted boundary layer ingestion propulsor 
    Matesanz García, Jesús; Piovesan, Tommaso; MacManus, David G. (Emerald, 2022-12-15)
    Purpose Novel aircraft propulsion configurations require a greater integration of the propulsive system with the airframe. As a consequence of the closer integration of the propulsive system, higher levels of flow distortion ...
  • Aerodynamic optimization of the exhaust system of an aft-mounted boundary layer ingestion propulsor 
    Matesanz García, Jesús; Piovesan, Tommaso; MacManus, David G. (2022-03-28)
    Novel aircraft propulsion configurations require a greater integration of the propulsive system with the airframe. As a consequence of the closer integration of the propulsive system, higher levels of flow distortion at ...
  • Aerodynamic performance investigation through different chemistry modelling approaches for space re-entry vehicles using the DSMC method 
    Farah, Elias; Teschner, Tom-Robin (Unconfirmed, 2022-04-22)
    High-speed flows with Mach numbers well above the hypersonic regime pose significant modelling com-plexities due to increased levels of thermal energy, which in turn result in a variety of chemical reactionsthat become ...
  • Aerodynamic performance of a flyable flapping wing rotor with dragonfly-like flexible wings 
    Pan, Yingjun; Guo, Shijun; Whidborne, James F.; Huang, Xun (Elsevier, 2024-03-29)
    Drawing inspiration from insect flapping wings, a Flapping Wing Rotor (FWR) has been developed for Micro Aerial Vehicle (MAV) applications. The FWR features unique active flapping and passive rotary kinematics of motion ...
  • Aerodynamic performance of a flyable flapping wing rotor with passive pitching angle variation 
    Chen, Si; Wang, Le; He, Yuanyuan; Tong, Mingbo; Pan, Yingjun; Ji, Bing; Guo, Shijun (IEEE, 2021-09-22)
    The present work was based on an experimental study on the aerodynamic performance of a flapping wing rotor (FWR) and enhancement by passive pitching angle variation (PPAV) associated with powered flapping motion. The PPAV ...
  • Aerodynamic performance of an un-located high-pressure turbine rotor 
    Pawsey, Lucas; Rajendran, David John; Pachidis, Vassilios (Cambridge University Press, 2017-07-13)
    The rotor sub-assembly of the high-pressure turbine of a modern turbofan engine is typically free to move downstream because of the force imbalance acting on the disc and blades following an un-located shaft failure. This ...
  • Aerodynamic problems of urban UAV operations 
    Kittiyoungkun, S (2011-09-09)
    Unmanned Air Vehicles, UAVs are designed to operate without any onboard controllers. Consequently, they are considered to operate in a wide range of applications. Missions in undesirable conditions such as bad weather ...
  • Aerodynamic surface pressure measurement in atmosphere and wind tunnel on a vertical axis wind turbine blade using pressure transducers 
    Oram, C. E. (1989-09)
    Blade aerodynamic loads during operation of a wind turbine are poorly understood. Better measurements of these forces are needed for the design of more cost effective turbines. Existing estimates have been inferred from ...
  • Aerodynamics and performance enhancement of a ground-effect diffuser 
    Ehirim, O H (2018-04)
    This study involved experimental and equivalent computational investigations into the automobile-type 3―D flow physics of a diffuser bluff body in ground-effect and novel passive flow-control methods applied to the diffuser ...
  • Aerodynamics of a compact nacelle at take-off conditions 
    Swarthout, Avery E.; MacManus, David G.; Tejero, Fernando; Matesanz García, Jesús; Goulos, Ioannis; Boscagli, Luca; Sheaf, Christopher T. (IEEE, 2023-06-08)
    Next generation ultra-high bypass ratio turbofans may have larger fan diameters than the previous generation of aircraft engines. This will potentially increase the nacelle diameter and may incur penalties to the weight ...
  • Aerodynamics of a convex bump on a ground-effect diffuser 
    Ehirim, Obinna; Knowles, Kevin; Saddington, A. J.; Finnis, Mark V. (Journal of Fluids Engineering, 2018-04-19)
    A ground-effect diffuser is an upward-sloping section of the underbody of a racing car that enhances aerodynamic performance by increasing the downforce, thus improving tire grip. The downforce generated by a diffuser can ...
  • Aerodynamics of a short intake in crosswind 
    Boscagli, Luca; Christie, Robert; MacManus, David; Piovesan, Tommaso (Elsevier, 2022-09-05)
    The next generation of turbofan aero-engines are likely to have an increase in fan diameter to reduce the specific thrust and increase the overall propulsive efficiency. More compact nacelles with possibly shorter intakes ...
  • Aerodynamics of aero-engine installation 
    Stankowski, Tomasz P.; MacManus, David G.; Sheaf, Christopher T.; Grech, Nicholas (AIAA, 2016-01-02)
    Small internal combustion engines, particularly those ranging in power from 1 kW to 10 kW, propel many remotely piloted aircraft (RPA) platforms that play an increasingly significant role in the Department of Defense. ...
  • Aerodynamics of aero-engine installation 
    Stankowski, Tomasz P.; MacManus, David G.; Sheaf, Christopher T.; Christie, Robert (Sage Publications, 2016-02-24)
    This paper describes current progress in the development of methods to assess aero-engine airframe installation effects. The aerodynamic characteristics of isolated intakes, a typical transonic transport aircraft as well ...
  • The aerodynamics of aero-engine Nacalles. 
    Robinson, Matthew H. (2018-02)
    This thesis deals with the aerodynamics of aero-engine nacelles with a focus on the influence of a short and slim nacelle design on the drag performance. As turbofan engines are designed with increasingly reduced specific ...
  • The Aerodynamics of High Speed Aerial Weapons 
    Prince, Simon A. (Cranfield University, 1999-09)
    The focus of this work is the investigation of the complex compressible flow phenomena associated with high speed aerial weapons. A three dimen- sional multiblock finite volume flow solver was developed with the aim ...
  • Aerodynamics of propulsion system integration for modern aero-engines. 
    Stańkowski, Tomaz Piotr (2016-09)
    Over the past years, the fan diameter of a turbofan engine for commercial aircraft tended to increase and based on the requirement to improve the propulsive efficiency it is expected that the engine diameter will continue ...
  • The aerodynamics of slender aircraft forebodies at high angle of attack. 
    Petterson, Kristian (2001-08)
    High angle-of-attack aerodynamics has been the focus of much attention as a result of the drive to increase combat aircraft manoeuverability and thereby improve survivability. A key factor in this regime is the behaviour ...