The adequacy of energy deposition over thermodynamic behaviour in explaining the acoustic energy in bubble nucleation of superheated droplets

2021 ◽  
pp. 109578
Author(s):  
Sunita Sahoo ◽  
Mala Das
Keyword(s):  
Energy Deposition ◽  
Bubble Nucleation ◽  
Acoustic Energy ◽  
Thermodynamic Behaviour

scholarly journals Effects of the thermodynamic conditions on the acoustic signature of bubble nucleation in superheated liquids used in dark matter search experiments

2019 ◽  
Vol 79 (11) ◽  
Author(s):  
M. Ardid ◽  
A. Baschirotto ◽  
N. Burgio ◽  
M. Corcione ◽  
L. Cretara ◽  
...  
Keyword(s):  
Dark Matter ◽  
Acoustic Signal ◽  
Alpha Decay ◽  
Computational Procedure ◽  
Bubble Nucleation ◽  
Acoustic Energy ◽  
Dark Matter Search ◽  
Nuclear Recoils ◽  
Thermodynamic Conditions ◽  
Superheated Liquids

AbstractIn the framework of the search for dark matter in the form of WIMPs using superheated liquids, a study is conducted to establish a computational procedure aimed at determining how the thermodynamic conditions kept inside a particle detector affect the acoustic signal produced by bubble nucleation. It is found that the acoustic energy injected into the liquid by the growing vapour bubble increases as the liquid pressure is decreased and the superheat degree is increased, the former effect being crucial for the generation of a well-intelligible signal. A good agreement is met between the results of the present study and some experimental data available in the literature for the amplitude of the acoustic signal. Additionally, the higher loudness of the alpha-decay events compared with those arising from neutron-induced nuclear recoils is described in terms of multiple nucleations.

Blunt-body wave drag reduction using focused energy deposition

AIAA Journal ◽  
1999 ◽  
Vol 37 ◽  
pp. 460-467 ◽  
Author(s):  
David Riggins ◽  
H. F. Nelson ◽  
Eric Johnson
Keyword(s):  
Drag Reduction ◽  
Energy Deposition ◽  
Blunt Body ◽  
Body Wave ◽  
Wave Drag ◽  
Wave Drag Reduction
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