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The behavior of Rossby waves on a shear flow in the presence of a nonlinear critical layer is studied, with particular emphasis on the role played by the critical layer in a Rossby wave resonance mechanism. Previous steady analyses are extended to the resonant case and it is found that the forced wave dominates the solution, provided the flow configuration is not resonant for the higher harmonics induced by the critical layer. Numerical simulations for the forced initial value problem show that the solution evolves towards the analysed steady state when conditions are resonant for the forced wave, and demonstrate some of the complications that arise when they are resonant for higher harmonics.

No description available.

No description available.

Spine title: "Time-dependent & viscoplastic fluids". / Bibliography: leaves 193-201. / xvii, 201, 39 leaves : ill. ; 30 cm. / Title page, contents and abstract only. The complete thesis in print form is available from the University Library. / A method based on a critical radius has been experimentally demonstrated as an reasonably accurate approach to determine the flow properties of time dependent fluids with a yield stress using Couette rheometry. Develops a new modelling approach to characterize thixotropic yield stress fluids. / Thesis (Ph.D.)--University of Adelaide, Dept. of Chemical Engineering, 1998?

The literature concerning bluff-body flows in two-dimensional, incompressible, sheared and unsheared streams is reviewed. It is found that no theory yet exists which can predict the form drag of a bluff body without some recourse to experimental data, even for the simple case of an isolated bluff-plate in an unsheared stream. In the present state of knowledge, and considering the complexity of turbulent shear flows, a theory for the form drag of bluff-plates immersed in turbulent boundary-layers seems remote. A correlation scheme is proposed to relate the form drag of a bluff-plate which is attached to a smooth-wall with the mean-flow characteristics of the naturally-developed, turbulent boundary-layer in which it is immersed. The investigation is limited to smooth-wall flows of the type described by Coles (1956). It is suggested that, for bluff-plates which are small compared with the boundary-layer thickness, the drag might depend only on the “wall variables”: wall shear-stress, fluid density and viscosity, and the plate height.

Spine title: "Time-dependent & viscoplastic fluids". / Bibliography: leaves 193-201. / xvii, 201, 39 leaves : ill. ; 30 cm. / Title page, contents and abstract only. The complete thesis in print form is available from the University Library. / A method based on a critical radius has been experimentally demonstrated as an reasonably accurate approach to determine the flow properties of time dependent fluids with a yield stress using Couette rheometry. Develops a new modelling approach to characterize thixotropic yield stress fluids. / Thesis (Ph.D.)--University of Adelaide, Dept. of Chemical Engineering, 1998?

Thesis (Ph.D.)--University of Adelaide, Dept. of Chemical Engineering, 1998? / Spine title: "Time-dependent & viscoplastic fluids". Bibliography: leaves 193-201.

Thesis (Ph. D.)--University of New South Wales, 2001. / Also available online.

Thesis (PhD) - Swinburne University of Technology, Centre for Molecular Simulation - 2008. / Submitted in fulfilment of requirements for the degree Doctor of Philosophy, Centre for Molecular Simulation, Faculty of Information and Communication Technologies, Swinburne University of Technology, 2008. Typescript. Bibliography: p. 206-226.