Neutron scattering from nonsuperfluid 4He

1978 ◽  
Vol 56 (2) ◽  
pp. 302-310 ◽  
Author(s):  
A. D. B. Woods ◽  
E. C. Svensson ◽  
P. Martel
Keyword(s):  
Vapor Pressure ◽  
Neutron Scattering ◽  
Structure Factor ◽  
Entire Range ◽  
Saturated Vapor Pressure ◽  
Saturated Vapor ◽  
Dynamic Structure ◽  
Dynamic Structure Factor ◽  
Adequate Description

Tables of values of the resolution-broadened dynamic structure factor, SR(Q,v), for liquid 4He at 4.2 K and saturated vapor pressure are presented. The results are discussed in terms of several models. No existing model is able to give an adequate description over the entire range covered by the measurements, 1.0 ≤ Q ≤ 100 nm−1.

Dynamic Structure Factor of Core–Shell Microgels: A Neutron Scattering and Mesoscale Hydrodynamic Simulation Study

2016 ◽  
Vol 49 (9) ◽  
pp. 3608-3618 ◽  
Author(s):  
Simona Maccarrone ◽  
Ali Ghavami ◽  
Olaf Holderer ◽  
Christine Scherzinger ◽  
Peter Lindner ◽  
...  
Keyword(s):  
Neutron Scattering ◽  
Simulation Study ◽  
Structure Factor ◽  
Dynamic Structure ◽  
Dynamic Structure Factor ◽  
Core Shell ◽  
Hydrodynamic Simulation

Density fluctuations in liquid argon: Coherent dynamic structure factor along the 120-K isotherm obtained by neutron scattering

1985 ◽  
Vol 31 (5) ◽  
pp. 3391-3414 ◽  
Author(s):  
A. A. van Well ◽  
P. Verkerk ◽  
L. A. de Graaf ◽  
J.-B. Suck ◽  
J. R. D. Copley
Keyword(s):  
Neutron Scattering ◽  
Structure Factor ◽  
Dynamic Structure ◽  
Liquid Argon ◽  
Density Fluctuations ◽  
Dynamic Structure Factor

scholarly journals Single Chain Dynamic Structure Factor of Linear Polymers in an All-Polymer Nano-Composite

2016 ◽  
Vol 49 (6) ◽  
pp. 2354-2364 ◽  
Author(s):  
Arantxa Arbe ◽  
José A. Pomposo ◽  
Isabel Asenjo-Sanz ◽  
Debsindhu Bhowmik ◽  
Oxana Ivanova ◽  
...  
Keyword(s):  
Structure Factor ◽  
Dynamic Structure ◽  
Dynamic Structure Factor ◽  
Linear Polymers ◽  
Single Chain ◽  
Nano Composite ◽  
Chain Dynamic

scholarly journals Effects of nanoparticles on hydraulic cavitation

2018 ◽  
Vol 240 ◽  
pp. 03004
Author(s):  
Min-rui Chen ◽  
Jin-yuan Qian ◽  
Zan Wu ◽  
Chen Yang ◽  
Zhi-jiang Jin ◽  
...  
Keyword(s):  
Vapor Pressure ◽  
Saturated Vapor Pressure ◽  
Saturated Vapor ◽  
Geometric Model ◽  
Pressure Ratio ◽  
Perforated Plate ◽  
Significant Parameter ◽  
Operation Conditions ◽  
Small Bubbles ◽  
Crucial Condition

When liquids flowing through a throttling element, such as a perforated plate, the velocity increases and the pressure decreases. If the pressure is below the saturated vapor pressure, the liquid will vaporize into small bubbles, which is called hydraulic cavitation. In fact, vaporization nucleus is another crucial condition for vaporizing. The nanoparticles contained in the nanofluids play a significant role in vaporization of liquids. In this paper, the effects of the nanoparticles on hydraulic cavitation are investigated. Firstly, a geometric model of a pipe channel equipped with a perforated plate is established. Then with different nanoparticle volume fractions and diameters, the nanofluids flowing through the channel is numerically simulated based on a validated numerical method. The operation conditions, such as the temperature and the pressure ratio of inlet to outlet, are the considered variables. As a significant parameter, cavitation numbers under different operation conditions are achieved to investigate the effects of nanoparticles on hydraulic cavitation. Meanwhile, the contours are extracted to research the distribution of bubbles for further investigation. This study is of interests for researchers working on hydraulic cavitation or nanofluids.

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