Browsing by Title

Browsing by Title

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  • 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 ...
  • 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 ...
  • 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 ...
  • 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 ...
  • 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 ...
  • 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. ...
  • 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 ...
  • 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 ...
  • 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 ...
  • 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 ...
  • 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 ...
  • McLelland, Grant (Cranfield University, 2013-12)
    The potential impact of inlet flow distortion on the stability and performance of aircraft engines remains a key concern for engine-airframe integration. Current and future configurations, such as Unmanned Combat Air ...
  • Bang, Chris Sungkyun; Rana, Zeeshan; Könözsy, László Z.; Rodriguez, Veronica M.; Temple, Clive (American Society of Mechanical Engineers, 2021-11-20)
    The present work focuses on an advanced coupling of computational fluid dynamics (CFD) and structural analysis (FEA) on the aeroelastic behaviour of a single element inverted composite wing with the novelty of including ...
  • Banerjee, J. R. (1978-09)
    The symmetric flutter and response characteristics of a class of tailless .sailplanes-:are investigated combining rigid--body dynamics with elastic modes of deformation. The methods used are based on the normal mode approach ...
  • Li, Daochun; Guo, Shijun J.; Xiang, Jinwu (Elsevier Science B.V., Amsterdam, 2010-10-31)
    Nonlinearities in aircraft mechanisms are inevitable, especially in the control system. It is necessary to investigate the effects of them on the dynamic response and control performance of aeroelastic system. In this ...
  • Li, Hao (2018-09)
    In this thesis, the structure and aeroelastic design, analysis and optimization of conventional fixed wing is firstly addressed. Based on the study results of conventional fixed wing, the study then focuses on the more ...
  • Yusuf, Sezsy; Pontillo, Alessandro; Weber, Simone; Hayes, David; Lone, Mudassir (AIAA, 2019-12-31)
    This paper provides an overview of the work conducted as part of the Cranfield BEAmReduction and Dynamic Scaling (BeaRDS ) programme, which aims to develop a methodologyfor designing, manufacturing and testing of a dynamically ...
  • Castillo Pardo, Alejandro (2017)
    A close relationship between the aerospace technology level and the capability to model and simulate the physics involved during the flight has been identified throughout the aviation history. The continuous improvement ...
  • Li, Zhuojun; Li, Yi-Guang; Sampath, Suresh (Cambridge University Press, 2022-03-11)
    The simulations and assessment of transient performance of gas turbine engines during the conceptual and preliminary design stage may be conducted ignoring heat soakage and tip clearance variations due to lack of detailed ...
  • Forth, Shaun A.; Evans, Trevor P. (2002-01-01)
    We report preliminary results in the use of ADIFOR 2.0 to determine aerodynamic sensitivities of a 2-D airfoil with respect to geometrical variables. Meshes are produced with a hyperbolic interpolation technique. The ...