A Note on Ring Source over Infinite Tube

Transfer-Function Determination for Infinite-Tube-Probe Pressure Transducers with Application to Turbofan Core/Combuster Noise

25th AIAA/CEAS Aeroacoustics Conference ◽

10.2514/6.2019-2588 ◽

2019 ◽

Author(s):

Devin K. Boyle ◽

Brenda S. Henderson ◽

Lennart S. Hultgren

Keyword(s):

Transfer Function ◽

Pressure Transducers ◽

Infinite Tube

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Coupling Coefficient and Excitation Impedance for a Plasma Column Excited by a Ring Source

IETE Journal of Research ◽

10.1080/03772063.1968.11485704 ◽

1968 ◽

Vol 14 (12) ◽

pp. 528-532

Author(s):

K. C. Gupta ◽

A. Singh

Keyword(s):

Coupling Coefficient ◽

Plasma Column ◽

Ring Source

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Features of device cooling in wiggler synchrotron workstations

Journal of Physics Conference Series ◽

10.1088/1742-6596/2057/1/012028 ◽

2021 ◽

Vol 2057 (1) ◽

pp. 012028

Author(s):

O A Kabov ◽

Ya V Zubavichus ◽

K E Cooper ◽

M V Pukhovoy ◽

V V Vinokurov ◽

...

Keyword(s):

Radiation Power ◽

High Vacuum ◽

High Energy ◽

High Energy Density ◽

Ansys Fluent ◽

Optical Elements ◽

Cooling Systems ◽

Fluent Software ◽

Stress And Strain Distribution ◽

Ring Source

Abstract The construction of the «Siberian Photon Ring Source», the SKIF synchrotron, in Novosibirsk is underway. At the first stage, six research workstations will be created, most of the devices of which work in a high vacuum. Synchrotron radiation is generated by superconducting Wigglers for two stations. The total radiation power is approaching 49 kW, and the power density on the axis is 92 kW/mrad2. The high energy density of the beam creates quite difficult conditions for the thermal management of optical elements at the workstations. The article presents specific requirements for cooling devices, an overview of the used and promising cooling systems is made, an example of calculating the temperature, stress and strain distribution in a diamond filter with a thickness of 300 microns using the ANSYS Fluent software package is given.

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Fluid-Elastic Whirling of Infinite Tube Rows and Arrays in Cross-Flow

Industrial Vibration Modelling ◽

10.1007/978-94-009-4480-0_10 ◽

1987 ◽

pp. 149-164

Author(s):

N. Tonks ◽

R. D. Gibson ◽

T. S. Wilkinson

Keyword(s):

Cross Flow ◽

Infinite Tube

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Basis property of elementary solutions for second order elliptic equations in semi-infinite tube domains

Application of Abstract Differential Equations to Some Mechanical Problems ◽

10.1007/978-94-007-1080-1_5 ◽

2003 ◽

pp. 181-194

Author(s):

Isabelle Titeux ◽

Yakov Yakubov

Keyword(s):

Elliptic Equations ◽

Basis Property ◽

Second Order ◽

Tube Domains ◽

Second Order Elliptic Equations ◽

Infinite Tube

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Wavy Motion of Viscous Bubbly Liquid in Tubes of Orthotropic Material

International Journal of Chemoinformatics and Chemical Engineering ◽

10.4018/ijcce.2012010104 ◽

2012 ◽

Vol 2 (1) ◽

pp. 39-47

Author(s):

Rafael Yusif Amenzadeh ◽

Akperli Reyhan Sayyad ◽

Faig Bakhman Ogli Naghiyev

Keyword(s):

Orthotropic Material ◽

Volume Fraction ◽

Linear Equations ◽

Bubbly Liquid ◽

Air Bubbles ◽

Two Phase ◽

One Dimensional ◽

Wave Characteristics ◽

Infinite Tube ◽

Limited Process

This article investigates the pulsating flow of a compressible two-phase bubble of viscous fluid contained in an elastic orthotropicle direct axis tube. In this work, one-dimensional linear equations have been used. It is assumed that the tube is rigidly attached to the certain environment. In the case of finite length the pressure is applied at the end of its faces. In the limited process, relations obtained for a very long tube. Such a description, in a sense generalizes and strengthens the work of this type. In the numerical experiment a semi-infinite tube with flowing water containing small amount of air bubbles is considered. The influence of volume fraction of bubbles on wave characteristics is determined.

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Compton Scatter Tomography Using 99mTc Ring Source

RADIOISOTOPES ◽

10.3769/radioisotopes.27.12_723 ◽

1978 ◽

Vol 27 (12) ◽

pp. 723-726

Author(s):

Kazuhiko KOJIMA ◽

Kichiro KOSHIDA ◽

Ryuichi MAEKAWA ◽

Toshio MAEDA ◽

Kinichi HISADA

Keyword(s):

Compton Scatter ◽

Ring Source

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Trapped modes in an infinite tube with inhomogeneity

Modern Physics Letters B ◽

10.1142/s0217984920500608 ◽

2019 ◽

Vol 34 (04) ◽

pp. 2050060

Author(s):

Wei-Sha Li ◽

Kang Yong Lee ◽

Xian-Fang Li

Keyword(s):

Vibration Mode ◽

Domain Decomposition Method ◽

Density Ratio ◽

Cylindrical Tube ◽

Trapped Modes ◽

Multiple Frequency ◽

Cutoff Frequencies ◽

Cylindrical Coordinate ◽

Matching Technique ◽

Infinite Tube

Symmetric and anti-symmetric trapped modes in a cylindrical tube with a segment of higher density are studied. The problem is reduced to an eigenvalue problem of the spatial Helmholtz equation subject to vanishing Dirichlet boundary condition in the cylindrical coordinate system. Through the domain decomposition method and matching technique, multiple frequency parameters are determined by solving the characteristic equation, and the corresponding n-fold periodic trapped modes can be constructed. It is found that in addition to the fundamental mode, the second- and higher-order trapped modes exist, which depend on the density ratio and length of the inhomogeneity. The local inhomogeneity leads to a decrease of the cutoff frequencies of the homogeneous tube and the corresponding vibration mode is localized near the inhomogeneous segment.

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