Results 261 to 270 of about 360,445 (297)

Conjugate natural convection in a square porous cavity

Heat and Mass Transfer, 2001
Steady-state conjugate natural convection in a square cavity filled with a porous medium is studied numerically in this paper. The enclosure consists of two horizontal conductive walls of finite thickness and two vertical walls at different uniform temperatures.
A. C. Baytaş, A. Liaqat, T. Groşan, I. Pop   +3 more
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CFD analysis of mixed convection porous square cavity

International Journal of Ambient Energy, 2018
The analysis of conventional flow and transfer of heat in a square cavity which is porous in nature is being done by the numerical study and research.
I. Saran Raj, N. Dilip Raja, K. Arun Kumar, V. Ramesh, D. Yuvarajan   +4 more
openaire   +1 more source

Square-section cavity resonators for VHF mobile radio

International Journal of Electronics, 1977
It is shown that VHF coaxial cavity resonators give higher unloaded Q for the same overall dimensions if the cross-section of the outer conductor is square rather than circular. Experimental results to confirm the theory are included.
H. T. AL-HAFID, S. QUBOA
openaire   +1 more source

Chaos in the lid-driven square cavity

Mathematics and Computers in Simulation, 2017
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
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Bandwidth behavior of miniature square cavity microstrip antennas

2013 IEEE-APS Topical Conference on Antennas and Propagation in Wireless Communications (APWC), 2013
Integrating an antenna onto a specific platform of small size often requires its placement in a metallic cavity. The main consequence is the reduction of the antenna bandwidth. The objective of our study is to investigate the maximum possible bandwidth at a fixed frequency of 2.3 GHz for a patch antenna in a small square cavity.
Mario Martinis, Kouroch Mahdjoubi, Ronan Sauleau, Sylvain Collardey, Loic Bernard   +4 more
openaire   +1 more source

Double diffusive nonlinear convection in a square cavity

Fluid Dynamics Research, 2000
Combined temperature and species gradients induced buoyancy-driven natural convection flow of cold water at temperatures in the neighbourhood of the temperature of maximum density is investigated. Further, it is assumed that the addition of solutes to pure water raises the temperature of maximum density.
K Sundaravadivelu, P Kandaswamy
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Second Sound in Square and Cubical Cavities

Physical Review, 1964
The response of closed square and cubical cavities to linear standing waves of second sound in helium ii has been studied. In a square cavity, when the number of half-wavelengths $n$ along one side is even, a linear wave in the $x$ direction couples loosely with the $y$ direction, producing standing waves in both directions at two resonant frequencies,
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Instabilities in viscoelastic flow past a square cavity

Journal of Non-Newtonian Fluid Mechanics, 2000
Abstract Elastic flow transitions in viscoelastic flow past a square cavity adjacent to a channel are reported. The critical conditions for the onset of flow transitions and the qualitative and quantitative characterization of the secondary flows generated by the instability have been examined using streakline photography and instantaneous pressure ...
Kim, Jin-Hyun, Öztekin, Alparslan, Neti, Sudhakar   +2 more
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Square ring laser diode with MMI coupler cavity

IEEE Photonics Technology Letters, 1997
A square ring laser diode is designed and fabricated in which a multimode interference 3-dB coupler operates as an output coupler and a ring resonator simultaneously. This merged structure allows a shorter cavity length and a lower loss in the output branching. Lasing in the ring cavity is confirmed and the spectra are also measured.
Kim, HS, Kwon, YS, Hong, S Hong, Songcheol   +2 more
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Global Modes and Control in a Square Cavity

5th AIAA Theoretical Fluid Mechanics Conference, 2008
The global stability of flow over a square cavity is investigated using numerical simulations combined with iterative Krylov subspace schemes. Balanced modes are computed using the balanced POD method and a reduced-order system is determined. This reduced system then forms the basis for the design of control strategies to suppress the vortical ...
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