Results 211 to 220 of about 14,630 (260)

Effects of the gap size on the flow pattern maps in a mini-gap annular channel

Experimental Thermal and Fluid Science, 2014
Abstract An experimental study has been performed to examine the effects of gap size on the flow pattern maps of air–water two-phase flow inside a mini-gap annular channel with inclination angles (θ) of 0°, 30°, and 60°. The tests are conducted for three different sizes of the inner diameters (Di) of the concentric annular test section—namely 8, 10 ...
Omid Mahian, Ahmet Selim Dalkilic, Somchai Wongwises   +2 more
exaly   +3 more sources

Investigation of Rotating Detonation Waves in an Annular Gap

Proceedings of the Steklov Institute of Mathematics, 2020
The authors numerically solve a problem of formation of rotating 3D detonation waves in an annular gap between parallel plates. They consider the case of a propane-air mixture, assuming that the reaction occurs under stoichiometry. They write the system of nonsteady Euler equations for an ideal multicomponent reaction mixture, in a conservative form ...
Levin, V. A., Manuylovich, I. S., Markov, V. V.   +2 more
openaire   +1 more source

On annular functions with hadamard gaps

Complex Variables, Theory and Application: An International Journal, 1984
Let and let It is shown in particular that, if ƒ has Hadamard gaps, i.e. if then there exist and curves such that where μ cannot be replaced by a faster growing function. If ƒ does not have Hadamard gaps then can be bounded on a radius.
Gnuschke, D., Pommerenke, Ch.
openaire   +2 more sources

Rotating Detonation Wave in an Annular Gap

Proceedings of the Steklov Institute of Mathematics, 2018
The authors consider the three-dimensional Euler equations of an ideal multicomponent reacting mixture that describe combustion of an air-fuel mixture in an annular gap. The system is studied numerically, using high-performance computers. Air is considered as an oxygen-nitrogen mixture, the fuel is gaseous.
Levin, V. A., Manuylovich, I. S., Markov, V. V.   +2 more
openaire   +2 more sources

An Investigation Into the Effects of an Annular Gap on Surface Settlement

Soil Mechanics and Foundation Engineering, 2021
Ground displacement is an inevitable problem in the excavation of tunnels and underground spaces near the surface. The importance of surface settlement increases with a reduction of the depth of tunnelling. In urban areas, when settlements exceed the allowed value, they can damage surface and subsurface structures.
H. Chakeri, A. Balani, M. Sharghi, Y. Özcelik   +3 more
openaire   +1 more source

Heat transfer in an annular gap

International Journal of Heat and Mass Transfer, 1978
Abstract Heat-transfer coefficients were measured for the flow in the annular space between an inner rotating cylinder and an outer stationary one, with superimposed axial flow. The problem was stimulated by the desire for additional information on the design of cooling systems for electric motors of high power density.
S.R.M Gardiner, R.H Sabersky
openaire   +1 more source

Annular Gap Junctions of the Equine Hoof Wall

Cells Tissues Organs, 1983
Incidental to studies of keratinization of the equine hoof wall, annular gap junctions were found in the stratum spinosum of the intertubular horn of the stratum medium. Adjacent cells of the stratum spinosum showed extensive gap junctions, and often local invaginations of one cell into another were bound by gap junctions.
D, Leach, L, Oliphant
openaire   +2 more sources

Inner Annular Gap and Related Topics

Chinese Journal of Astronomy and Astrophysics, 2006
Geometrical properties of the annular gap model, efforts of observational tests on it and applications of the model to explain the bi-drifting phenomenon are introduced in this paper. It was shown that in the frame of the annular gap model the observed γ-ray and radio radiation properties of pulsars can be well reproduced.
K. J Lee, G. J Qiao, H. G Wang, B Zhang, R. X Xu   +4 more
openaire   +1 more source

Velocity of an electric arc in an annular gap

Journal of engineering physics, 1970
We investigate the influence of the current, magnetic-field induction, air flow, and interelectrode gap on the arc velocity in an annular gap between concentric electrodes. Generalized equations in critical (dimensionless) form are presented for the experimental data.
A. S. Shaboltas, O. I. Yas'ko
openaire   +1 more source

Gapped annular Josephson tunnel junctions

Czechoslovak Journal of Physics, 1996
The quantum-mechanical phase difference across the barrier of an annular, i.e. ring shaped Josephson tunnel junctions obeys to periodic boundary conditions which fix the algebraic sum of fluxons and antifluxons trapped in the barrier so that only fluxon-antifluxon pairs can be nucleated or annihilated.
Martucciello Nadia, Roberto Monaco
openaire   +1 more source