Zobrazeno 1 - 10
of 29
pro vyhledávání: '"D. R. Topham"'
Autor:
J. R. Marko, D. R. Topham
Publikováno v:
The Cryosphere, Vol 15, Pp 2473-2489 (2021)
Peace River SWIPS (Shallow Water Ice Profiling Sonar) data were analyzed to quantify the roles of frazil ice and riverbed anchor ice grown in situ during the initial buildup of a seasonal ice cover. Data were derived through quasi-continuous monitori
Externí odkaz:
https://doaj.org/article/393da55198974b78a5219f89f3c21f11
Autor:
H D Pite, D R Topham
Publikováno v:
Journal of Physics D: Applied Physics. 26:2159-2163
A review of axial flow arcs which exhibit well defined varicose oscillations suggests that, although these have frequently been attributed to shear instabilities, their observed phase speeds are an order of magnitude less than those expected for shea
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6e8c5bc1861586523028510ca8d28cd4
https://doi.org/10.1088/0022-3727/26/12/011
https://doi.org/10.1088/0022-3727/26/12/011
Publikováno v:
International Journal for Numerical Methods in Fluids. 16:353-364
A numerical investigation of the flow of two immiscible stratified fluids under an isolated keel has been undertaken. The investigation utilized the two-dimensional Euler equations for incompressible flow, and the solution of these equations has been
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a241926f1998e63e984be44acfd928dc
https://doi.org/10.1002/fld.1650160502
https://doi.org/10.1002/fld.1650160502
Publikováno v:
Combustion Science and Technology. 78:289-314
Experimental evidence relating to the early phase of the spark ignition process is reviewed. This suggests that the evolution of the spark kernel after the initial shockwave formation is governed by well defined fluid mechanical structures. In the ca
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8b7c718b69b0435399c170edacec036c
https://doi.org/10.1080/00102209108951753
https://doi.org/10.1080/00102209108951753
Publikováno v:
Canadian Journal of Physics. 70:295-297
The voltage–current characteristics of a boundary layer arc were measured over wide ranges of flow velocity (Ma 0.02–1.5) and current (10–100 A) by using three different experimental combinations. The arc is held in close contact with a solid s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::59e7546b14d8a7117c40af2d44190000
https://doi.org/10.1139/p92-047
https://doi.org/10.1139/p92-047
Autor:
R. G. Perkin, D. R. Topham
Publikováno v:
Journal of Atmospheric and Oceanic Technology. 1:201-219
The response characteristics of a family of conductivity cells typical of those employed in profiling instruments has been examined from a theoretical standpoint, and the conditions established under which such a cell exhibits a linear transfer funct
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::08048f31944faff7a1a9c0a3e78816f1
https://doi.org/10.1175/1520-0426(1984)001<0201:ottboc>2.0.co
https://doi.org/10.1175/1520-0426(1984)001<0201:ottboc>2.0.co
Publikováno v:
Combustion and Flame. 25:187-195
The dynamics and properties of a small jet of plasma produced by allowing a pulsed discharge to expand from a cylindrical cavity have been investigated. A model has been developed, which is based on the premise that the spark heats the gas within the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a87842ec048219e8b910e509ac243355
https://doi.org/10.1016/0010-2180(75)90084-x
https://doi.org/10.1016/0010-2180(75)90084-x
Autor:
D R Topham, A M Howatson
Publikováno v:
Journal of Physics D: Applied Physics. 11:1931-1935
Experiments on arcs in an axial flow of nitrogen revealed that a vortex disturbance could be initiated at an upstream cathode of thoriated tungsten, accompanied by a sudden change in arc voltage, when the current exceeded a certain level. It is argue
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e85f6fec99052344e3f4b4801c7e268c
https://doi.org/10.1088/0022-3727/11/13/016
https://doi.org/10.1088/0022-3727/11/13/016
Autor:
D R Topham
Publikováno v:
Journal of Physics D: Applied Physics. 11:1133-1146
Published measurements on arcs in orifice flows have been analysed, and it is shown that in spite of their large radiation losses, they have the scaling characteristics of a constant shape parameter model. The momentum balance of arcs confined in con
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1bc8f8928b0ae0007707452984c73ba9
https://doi.org/10.1088/0022-3727/11/7/013
https://doi.org/10.1088/0022-3727/11/7/013
Publikováno v:
Journal of Fluid Mechanics. 148:207-224
High-speed schlieren cinéphotography of the firing of a high-energy plasma-jet igniter reveal turbulent structures similar in appearance to laboratory models of thermals or turbulent puffs. Measurements of the growth rates of these features together
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::680316679e062e2adfa03528120fb78e
https://doi.org/10.1017/s0022112084002317
https://doi.org/10.1017/s0022112084002317