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Browsing by Author "Gledhill, IMA"

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  • Gledhill, Irvy MA; Roohani, H; Biobaku, A; Skews, B (SA Institute of Physics, 2016-06)
    Theoretical work on transforming the Navier-Stokes equations into arbitrarily accelerating frames has included the continuity, momentum, and energy conservation equations. An analysis of the momentum equation in non-dimensional ...
  • Gledhill, Irvy MA; Nordstrom, J (SAIP 2010, 2010-09)
    Fifth-generation missilies accelerate up to 100 g in turns, and higher accelerations are expected as agility increases. The authors have developed the theory of aerodynamics for arbitrary accelerations, and have validated ...
  • Gledhill, Irvy MA; Nordström, J (2010-09)
    Fifth-generation missiles accelerate up to 100 g in turns, and higher accelerations are expected as agility increases. The auhtors have developed the theory of aerodynamics for arbitrary accelerations, and have validated ...
  • Mbanjwa, MB; Land, K; Jewell, LL; Gledhill, Irvy MA (2011-01)
    The production of water-in-oil (w/o) emulsions in T-junction microfluidic channels was studied through experiments and computational fluid dynamics (CFD). W/o emulsions were produced in the microchannels from deionised ...
  • Mbanjwa, MB; Land, KJ; Jewell, L; Moss, EA; Gledhill, Irvy MA (SACAM 2010, 2010-01)
    This paper discusses the experimental observation of capillary instabilities of two-phase flow in a microfluidc T-junction. These instabilities are analogous to the classical Plateau-Rayleigh instabilities. The experiments ...
  • Gledhill, Irvy MA; Forsberg, K; Eliasson, P; Baloyi, J; Nordström, J (Elsevier, 2009)
    In this paper the authors describe the implementation and validation of arbitrarily moving reference frames in the block-structured CFD-code EURANUS. The paper also present results from calculations on two applications ...
  • Cannoo, BR; Gledhill, Irvy MA; Cooper, Antony K; Greben, JM (South African Conference on Computational and Applied Mechanics SACAM08, 2008-03)
    The protection of coastal structures is important to South Africa. The dynamics of breakwaters is a topic that is becoming amenable to numerical study, in terms of the motion of multiple interlocking structures under wave ...
  • Greben, JM; Cooper, Antony K; Gledhill, Irvy MA; de Villiers, R (CSIR, 2008-11)
    The authors have applied various numerical techniques to describe the stability of breakwater structures under the exposure of waves. These studies are intended to get a better understanding of the parameters playing a ...
  • Cooper, Antony K; Greben, JM; Van Den Bergh, F; Gledhill, Irvy MA; Cannoo, BR; Steyn, WJVDM; De Villiers, R (South African Conference on Computational and Applied Mechanics SACAM08, 2008-03)
    A variety of armour units are used to protect breakwaters, piers and other harbour infrastructure, serving both to absorb the impact of violent seas and to reduce overtopping. A common type of armour unit is the dolos. ...
  • Cooper, Antony K; de Villiers, R; Greben, JM; van der Bergh, F; Gledhill, Irvy MA (SACAM10, 2010-01)
    A variety of concrete armour units laid on top of rubble mounds are used to protect breakwaters and other harbour infrastructure. Coastal engineers build three-dimensional physical scale models to understand the dynamic ...
  • Gledhill, Irvy MA; Greben, JM; Cooper, Antony K; De Villiers, R; Grobler, Jan H (2013-07-08)
    The response of proposed breakwater packing strategies to incident waves is usually tested and evaluated in a model hall. There is currently also increasing interest in using numerical simulations to model both the packing ...