spatial filtration
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Author(s):  
N. A. Merentsov ◽  
V. A. Balashov ◽  
A. B. Golovanchikov ◽  
M. V. Topilin ◽  
A. V. Persidskiy

The paper describes the structure of the filtration curve built in a wide range of variation of filtration rates. A detailed description of the mechanism of occurrence and development of the inertial component of the filtration flow structure is given. Equations are presented that can be used to approximate the filtration curve. A modified equation is proposed that provides a smooth transition from laminar to turbulent filtration without discontinuities of the velocity and pressure fields, which can be used when calculating both one-dimensional and spatial filtration flow.


2019 ◽  
Vol 591 ◽  
pp. 117311 ◽  
Author(s):  
Martin Hartinger ◽  
Simon Schiffer ◽  
Hans-Jürgen Heidebrecht ◽  
Joseph Dumpler ◽  
Ulrich Kulozik

2019 ◽  
Vol 2019 ◽  
pp. 1-10
Author(s):  
Yusupzhan Kh. Ismanov ◽  
Nasipbek K. Dzhamankyzov

Computer simulation of the interferometer combining properties of low-sensitive Talbot interferometer and high-sensitive holographic interferometer is considered. The interferometer has four output channels having different sensitivity. Channel sensibility can be varied by means of spatial filtration. The base of the interferometer is the holographic Talbot effect. The efficiency of this interferometer was verified by computer simulation method. Some results of the computer simulation are presented in the article. These results were compared with results obtained in optical experiments under the same conditions. A wide range of sensitivity of the interferometer makes it possible to use the interferometer to study complex phase objects, primarily dynamic media.


Author(s):  
Rohit Bose ◽  
Kaniska Samanta ◽  
Soumya Chatterjee ◽  
Saugat Bhattacharyya ◽  
Anwesha Khasnobish

2018 ◽  
Vol 61 (5) ◽  
pp. 459-466
Author(s):  
D. B. Georgiev ◽  
V. I. Mironchenko ◽  
S. I. Or’kin ◽  
V. N. Shishov

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