Study on hydrothermal characteristics of a circular microchannel with varying circular and rectangular groove

2021 ◽  
Author(s):  
Krishanu Kumar ◽  
Pankaj Kumar ◽  
Santosh Kumar Singh
Keyword(s):  
Circular Microchannel ◽  
Rectangular Groove

CHARACTERISTICS OF GAS AND NON-NEWTONIAN LIQUID TWO-PHASE FLOWS THROUGH A CIRCULAR MICROCHANNEL

2015 ◽  
Vol 27 (2-4) ◽  
pp. 99-118 ◽  
Author(s):  
Akimaro Kawahara ◽  
Michio Sadatomi ◽  
Wen Zhe Law ◽  
Mohamed H. Mansour
Keyword(s):  
Newtonian Liquid ◽  
Two Phase Flows ◽  
Two Phase ◽  
Circular Microchannel

High diffraction efficiency for multi-layer dielectric gratings with rectangular groove

2008 ◽  
Author(s):  
Weijin Kong ◽  
Maojin Yun ◽  
Cuichun Ling ◽  
Xin Sun ◽  
Jianda Shao ◽  
...  
Keyword(s):  
Diffraction Efficiency ◽  
Dielectric Gratings ◽  
High Diffraction Efficiency ◽  
Rectangular Groove ◽  
High Diffraction

On the higher-order modes in rectangular-groove guide

1996 ◽  
Vol 17 (11) ◽  
pp. 1957-1967 ◽  
Author(s):  
W. M. Shi ◽  
K. F. Tsang ◽  
C. N. Wong ◽  
W. X. Zhang
Keyword(s):  
Higher Order ◽  
Higher Order Modes ◽  
Groove Guide ◽  
Rectangular Groove

A Research of 140-GHz Folded Rectangular Groove Waveguide Traveling-Wave Tube

2015 ◽  
Vol 24 (4) ◽  
pp. 873-876
Author(s):  
Minghao Zhang ◽  
Xianbao Shi ◽  
Yuanyuan Wang ◽  
Guo Guo ◽  
Lingna Yue ◽  
...  
Keyword(s):  
Traveling Wave ◽  
Traveling Wave Tube ◽  
Wave Tube ◽  
Rectangular Groove ◽  
Groove Waveguide

scholarly journals 3. Note on a New Form of Galvanometer

1884 ◽  
Vol 12 ◽  
pp. 594-596 ◽  
Author(s):  
James Blyth
Keyword(s):  
Copper Wire ◽  
Silk Fibre ◽  
Centre Line ◽  
New Form ◽  
Magnetic Meridian ◽  
Rectangular Groove

This instrument consists of a close spiral of insulated copper wire bent into the form of an anchor ring, so as to form an endless solenoid. The spiral is placed in a rectangular groove turned on the edge of a wooden or brass ring of suitable thickness and diameter. Short lengths of wire at both ends of the copper spiral are left straight. These, after being well insulated, are twisted together and led to two terminals, which serve as electrodes. The ring containing the spiral is fixed on a base board with its plane vertical, and at right angles to the magnetic meridian, when the instrument is in use. A short magnet, rigidly attached at right angles to the lower end of a stiff wire, is suspended from a silk fibre, so that its centre is in the circular centre line of the anchor ring.

scholarly journals A Mode-Matching Solution for TE-Backscattering from an Arbitrary 2D Rectangular Groove in a PEC

2020 ◽  
Vol 20 (3) ◽  
pp. 159-163 ◽  
Author(s):  
Mehdi Bozorgi
Keyword(s):  
Singular Integrals ◽  
Logarithmic Singularity ◽  
Linear Equations ◽  
Mode Matching ◽  
Electric Conductor ◽  
Fourier Cosine ◽  
Cosine Series ◽  
Fourier Cosine Series ◽  
Highly Oscillatory Integrals ◽  
Rectangular Groove

In this paper, the simple yet effective mode-matching technique is utilized to compute TE-backscattering from a 2D filled rectangular groove in an infinite perfect electric conductor (PEC). The tangential magnetic fields inside and outside of the groove are represented as the sums of infinite series of cosine harmonics (half-range Fourier cosine series). By applying the continuity of the tangential magnetic field, these modes are matched on the groove to obtain the series coefficients by solving a system of linear equations. For this purpose, some oscillatory logarithmic singular integrals involving Hankel and trigonometric functions are solved numerically, starting by removing the logarithmic singularity via integration by parts. In the following, the new well-behaved highly oscillatory integrals are computed using efficient methods, and several comparisons are made to demonstrate the validity and ability of the presented procedure.

scholarly journals Thermal Radiation Absorption in Rectangular-Groove Cavities

1963 ◽  
Vol 30 (2) ◽  
pp. 237-244 ◽  
Author(s):  
E. M. Sparrow ◽  
V. K. Jonsson
Keyword(s):  
Thermal Radiation ◽  
Incident Energy ◽  
Radiation Absorption ◽  
External Radiation ◽  
Energy Distributions ◽  
Surface Conditions ◽  
Incoming Radiation ◽  
Wide Range ◽  
Cavity Opening ◽  
Rectangular Groove

The amount of energy absorbed when a stream of external radiation enters a rectangular-groove cavity has been calculated for a variety of surface conditions, cavity depths, and incident energy distributions. The surfaces of the cavity are either diffuse reflectors or specular reflectors, and a wide range of reflectivity values has been considered. The incoming radiation is either diffusely distributed across the cavity opening or else arrives in a bundle of parallel rays. The results show that for diffuse incoming radiation, a specular cavity absorbs more effectively than does a diffuse cavity. For incoming radiation in a parallel ray bundle, the comparison depends on the angle of inclination of the rays.

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