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Autor:
John S. George, M. Weisend, N.G. Baldwin, Jeffrey D. Lewine, Robert S. Astur, J.T. Davies, J.A. Sanders, William W. Orrison
Publikováno v:
Electroencephalography and Clinical Neurophysiology. 95:P22
Autor:
J.T. Davies
Publikováno v:
Chemical Engineering Science. 42:1671-1676
Theoretical studies include firstly, the applicability of the Kolmogoroff-Hinze theory of droplet break-up in a turbulent liquid, testing it over a range of local power dissipations per unit mass of liquid from 5 to 109 W kg−1. Secondly, the turbul
Autor:
A.A. Young-Hoon, J.T. Davies
Publikováno v:
Chemical Engineering Science. 29:1115-1121
Turbulent jets of water, issuing from a nozzle at Re above 7000, remain coherent for some distance. The surface of the jet is covered with protrusions which are caused by the eddies in the turbulent liquid. In pure water, if Re is not too high, the s
Autor:
J.T. Davies
Publikováno v:
Chemical Engineering Science. 38:135-139
The author's previously published theory[2] of mass (or heat) transfer to very rough surfaces predicts a power dependence on Sc of −12 (compared with −23 for smooth surfaces). This expected change of 16 in the power has previously proved difficul
Autor:
J.T. Davies, A.M. Shawki
Publikováno v:
Chemical Engineering Science. 29:1801-1808
Theoretical relations are derived for heat transfer into or from turbulent falling films of liquid, flowing both over smooth and over very rough surfaces. Heat transfer from turbulent falling films over smooth plates and ridged plates has been measur
Autor:
J.T Davies
Publikováno v:
Chemical Engineering and Processing: Process Intensification. 20:175-181
This paper reviews and presents new information on three aspects of the behaviour of suspended solid particles in agitated tanks. The first is the minimum rate of stirring N required to keep the particles just suspended (JS) against their tendency to
Autor:
J.T. Davies, R.B. Wilcockson
Publikováno v:
Chemical Engineering Science. 40:1825-1830
To study the details of surface renewal of a clean and a film-covered liquid surface, a new technique using weak radiotracers has been developed. A small slug of radioactive Na 2 SO 4 ( 35 S) is injected below the surfaces. The β-particles have a ra
Autor:
J.T. Davies
Publikováno v:
Chemical Engineering Science. 42:1667-1670
A simple theoretical justification of the empirical results for the flow velocities required just to suspend solid particles in horizontal pipes is deduced from turbulence theory. The new theoretical equation gives a better fit to the empirical data
Autor:
T.B Thomas, J.T Davies
Publikováno v:
Journal of Colloid and Interface Science. 48:427-436
When a liquid lamella is struck by a falling sphere, two shock waves spread out from the point of impingement. One is a wave of deflection of the lamella, the other is a wave of stretching (dilation). The velocities of these waves have been measured.