Unsteady convective atmospheric vortices

Bellamy-Knights, P. G.; Saci, Rachid

doi:10.1007/bf02033746

Cited by 5 publications

(2 citation statements)

References 10 publications

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“…With the natural phenomenon of the tornado in mind, he investigated the effect of such vortices meeting a plane surface, developing a solution for the boundary-layer flow on such a surface (207) . Later papers, including those by his research students, further developed this theme (208)(209)(210)(211)(212)(213)(214) . However, by the late 1980s his attention turned to establishing exact analytical values of surface singularity distributions for potential flows about ellipses, thus providing bench-mark tests for the panel methods currently popular in aerodynamic calculations (215)(216)(217)(218)(219)(220) .…”

Section: The Department Of the Mechanics Of Fluids And Its Successorsmentioning

confidence: 99%

The Victoria University of Manchester’s contributions to the development of aeronautics

Ackroyd

2007

Aeronaut. j.

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This issue of the Aeronautical Journal celebrates the 50th anniversary of the foundation of the Honours Degree Course in Aeronautical Engineering at the Victoria University of Manchester. The following article therefore describes the aeronautical research and teaching activities of that university up to its recent amalgamation with the University of Manchester Institute of Science and Technology (UMIST) to form the present-day University of Manchester. This juncture provides a further justification for recording the Victoria University’s achievements.Both the Victoria University and UMIST had their roots in the nineteenth century although, apart from the relatively brief period of the First World War, neither of them was particularly involved in aeronautics until after the Second World War. However, as Sections 6.0-10.0 seek to demonstrate, thereafter the Victoria University’s involvement became considerable. The preceding Sections describe the origins of the Victoria University and UMIST and, in the case of the former institution, the subsequent activities of its staff and graduates in engineering and mathematics which, although not always specifically aeronautical in content, nonetheless had a profound influence on the development of the aeronautical sciences.

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Section: The Department Of the Mechanics Of Fluids And Its Successorsmentioning

confidence: 99%

The Victoria University of Manchester’s contributions to the development of aeronautics

Ackroyd

2007

Aeronaut. j.

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“…Details of the the~od~~arni~ equations can be found in the papers by Kuo (1966) and by Bellamy-Knights and Saci (1983). Here g is the gravitational acceleration and Rd is the gas constant for air.…”

Section: General Equationsmentioning

confidence: 99%

Similarity vortices in a stratified atmosphere

Sozou¹

1991

Boundary-Layer Meteorol

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Similarity equations relating to steady and unsteady vortices in a stratified atmosphere are shown to possess more general solutions than hitherto reported. Solutions with n cells, where n = 1,2,3,, are possible such that the axial and radial velocities tend to zero far from the axis of the vortex. For solutions with a finite number of cells, far from the axis the radial mass flow is directed towards the axis, with the exception of a subclass of solutions relating to one-cell and two-cell vortices associated with the unsteady configuration where the radial velocity is directed outwards.

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Unsteady atmospheric vortices in a stratified atmosphere

Sozou¹

1988

Tellus A

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Similarity equations relating to unsteady vortices in a stratified atmosphere are re‐examined. A spectrum of solutions wider than hitherto reported in the literature has been found. The solutions relate to one‐ and two‐cell vortices such that the radial and axial velocities are zero at large distances from the axis of the vortex. Far from the axis, the radial velocity is directed to the axis, whereas close to the axis, it can be directed towards the axis (for one‐cell solutions) or away from it (for two‐cell solutions). The axial velocity can be an up‐draught or a system of up‐draughts and down‐draughts. It is also shown that small changes in the azimuthal velocity can result in large changes in the vertical and radial velocities of the system.

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Unsteady convective atmospheric vortices

Cited by 5 publications

References 10 publications

The Victoria University of Manchester’s contributions to the development of aeronautics

The Victoria University of Manchester’s contributions to the development of aeronautics

Similarity vortices in a stratified atmosphere

Unsteady atmospheric vortices in a stratified atmosphere

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