Browsing by Supervisor "Elder, R. L."

Browsing by Supervisor "Elder, R. L."

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  • Optimising stator vane settings in multistage axial flow compressors 
    White, Nicholas M. (Cranfield University, 2002-04)
    There is a common requirement in the process, oil and gas turbine industries for high performance axial flow compressors operating over a wide range of mass flow rate and rotational speed at high efficiency. The trends ...
  • The prediction of transonic flows using a potential method 
    Toolsie, K. O. (1986-09-26)
    Transonic flows are simulated within convergent divergent nozzles and within turbomachinery blade rows. The flow is represented by the conservative full potential equation approximated by a nine-node central-difference scheme, ...
  • Rotating stall inception in fans of low hub-tip ratio 
    Soundranayagam, M. (Cranfield University, 1991-06)
    An investigation was carried out to study the process of rotating stall inception in a low hub-tip ratio fan. Such fans are expected, based on an elementary analysis, to stall from the root. However, experimental ...
  • Simulation of Aero Engine Pre- and Post-Stall Transient Behaviour 
    Merriman, Nicholas Michael (1994-04)
    The commercial and operational attractiveness of improving the specific thrust, whilst minimising the weight, of an aero gas turbine engine, has inevitably led to the compressor operating as near to stall as is ...
  • Stability of split flow fans 
    Tzannatos, E. (Cranfield University, 1986-11)
    The performance requirements of turbofan engines demands a stability and transient capability beyond that associated with the past generations of gas turbine engines. The axial flow fan unit is most vulnerable to loading ...
  • Stall and surge in axial flow compressors 
    Wilson, Alexander George (Cranfield University, 1996-09)
    The objective of the work described in this thesis is twofold; to elucidate the nature of stall and surge in an axial flow aeroengine compressor, and to improve on current computational stall modelling techniques. ...
  • Stall in low hub tip ratio industrial fans 
    Yu, H. (Cranfield University, 1991-11)
    This thesis presents the experimental investigation of stall in low hub tip ratio industrial fans. Detailed measurements were obtained i four fan configurations. The effects of blade setting angle, solidity, blade ...
  • A Study of Particle Trajectories In A Gas Turbine Intake 
    Tan, S. C. (Cranfield University, 1988-01)
    An experimental and theoretical study of the particle trajectories in a gas turbine intake has been presented. computer model was written to simulate a particle behaviour flight in a theoretical flow which was ...
  • A Study of Rocket Exhaust Particles 
    Dennis, C. W. (Cranfield University, 1996-10)
    The exhaust -plumes generated by rocket motors are of significant military importance for missile detection, recognition and communication due to their electromagnetic emission and propagation properties. The plume is a ...
  • A theoretical and experimental study of a novel refrigerant compressor 
    Eames, I. W. (Cranfield UniversityCranfield Institute of Technology. School of Mechanical Engineering, 1989-10)
    The aim of this thesis is to evaluate the findings of research undertaken into the design manufacture and testing of a novel refrigeration compressor for use in packaged air conditioner units of the type used in railway ...
  • Three-Dimensional Flow and Performance Simulation of Multistage Axial Flow Compressors 
    Li, Yiguang (Cranfield University, 2000-03)
    \Yith the current develop111ent in computer technology and Computational Fluid D)"n<'tlllics techniques, t.he si11utlation within axial flow compressors becomes 1110re and 1110re pract.ical and beneficial to the compressor ...
  • Transition to turbulence in a turbomachinery environment 
    Read, Simon (Cranfield University, 1997-08)
    This thesis aims to contribute to the understanding of transitional flows in the blade boundary layers of axial compressors. Two experiments are described, the first examining in detail the transitional boundary layer ...
  • Transition to turbulence in the boundary layer of turbomachinery blading 
    Kalfas, A. (Cranfield University, 1994-04)
    This thesis is concerned with the investigation of boundary layer transition phenomena in relation to turbomachinery flows. The present study involved the experimental investigation of the flow field around flat plates ...
  • Turbomachinery performance degradation due to erosion effect 
    Ghenaiet, Adel (Cranfield University, 2001-09)
    Erosion of gas turbines operating in sandy or dusty environments can result in serious damage to the engine components, particularly the compressor unit. This phenomenon is a result of the ingestion of the sand particles ...
  • Vaned recess anti-stall for axial-flow fans and compressors 
    Kang, Chang (Cranfield University, 1996)
    The study of anti-stall techniques for fans and compressors has never been more significant, since the potential applications were recognised in gas turbines, tunnel ventilation (jet fans) and industrial process ...
  • Wake affected boundary layer flows within an embedded stage of a multi-stage axial compressor 
    Lee, D. Y. (2001-06)
    Boundary Layer Flows in turbomachines have been recognised to crucially influence the stability and performance of gas turbine components particularly the compressor since its function is to provide a pressure rise through ...