scholarly journals Thermalization of a Two-Phase Fluid in Low Gravity: Heat Transferred from Cold to Hot

2000 ◽  
Vol 84 (18) ◽  
pp. 4100-4103 ◽  
Author(s):  
R. Wunenburger ◽  
Y. Garrabos ◽  
C. Lecoutre-Chabot ◽  
D. Beysens ◽  
J. Hegseth
Keyword(s):  
Low Gravity ◽  
Two Phase ◽  
Phase Fluid

Volume preserving immersed boundary methods for two-phase fluid flows

2011 ◽  
Vol 69 (4) ◽  
pp. 842-858 ◽  
Author(s):  
Yibao Li ◽  
Eunok Jung ◽  
Wanho Lee ◽  
Hyun Geun Lee ◽  
Junseok Kim
Keyword(s):  
Fluid Flows ◽  
Immersed Boundary ◽  
Immersed Boundary Methods ◽  
Two Phase ◽  
Boundary Methods ◽  
Phase Fluid ◽  
Volume Preserving

scholarly journals Picking up the hydrothermal whisper at Ischia Island in the Covid-19 lockdown quiet

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Mariarosaria Falanga ◽  
Paola Cusano ◽  
Enza De Lauro ◽  
Simona Petrosino
Keyword(s):  
Pressure Fluctuations ◽  
Hydrothermal Fluids ◽  
Shallow Aquifer ◽  
Two Phase ◽  
Spectral Content ◽  
Ischia Island ◽  
Continuous Noise ◽  
Organ Pipes ◽  
Source Signals ◽  
Phase Fluid

AbstractIn this paper, we analyse the seismic noise at Ischia Island (Italy) with the objective of detecting the hydrothermal source signals taking advantage of the Covid-19 quiescence due to lockdown (strong reduction of anthropogenic noise). We compare the characteristics of the background noise in pre-, during and post-lockdown in terms of spectral content, energy release (RMS) and statistical moments. The continuous noise is decomposed into two independent signals in the 1−2 Hz and 2−4 Hz frequency bands, becoming sharpened around 1 Hz and 3 Hz respectively in lockdown. We propose a conceptual model according to which a dendritic system of fluid-permeated fractures plays as neighbour closed organ pipes, for which the fundamental mode provides the persistent whisper and the first higher mode is activated in concomitance with energy increases. By assuming reasonable values for the sound speed in low vapor–liquid mass fraction for a two-phase fluid and considering temperatures and pressures of the shallow aquifer fed by sea, meteoric and deep hydrothermal fluids, we estimate pipe lengths in the range 200–300 m. In this scheme, Ischia organ-like system can play both continuous whisper and transients, depending on the energy variations sourced by pressure fluctuations in the hydrothermal fluids.

scholarly journals Functional Estimation of Plate Type Evaporator with Communication Wick for Two-Phase Fluid Loop in Space

2006 ◽  
Vol 72 (719) ◽  
pp. 1781-1788
Author(s):  
Haruo KAWASAKI ◽  
Ryoji IMAI ◽  
Kanji OHONISHI ◽  
Kengou OHKUBO ◽  
Terushige FUJII
Keyword(s):  
Two Phase ◽  
Functional Estimation ◽  
Phase Fluid ◽  
Plate Type

Molecular Simulation Study of Oil-Water Two-Phase Fluid Transport in Shale Inorganic Nanopores

2021 ◽  
pp. 116948
Author(s):  
Wei Zhang ◽  
Qihong Feng ◽  
Zhehui Jin ◽  
Xiangdong Xing ◽  
Sen Wang
Keyword(s):  
Molecular Simulation ◽  
Simulation Study ◽  
Fluid Transport ◽  
Two Phase ◽  
Oil Water ◽  
Phase Fluid

scholarly journals Heat transport in a stratified two-phase fluid

1976 ◽  
Vol 19 (4) ◽  
pp. 502 ◽  
Author(s):  
E. E. Salpeter ◽  
D. J. Stevenson
Keyword(s):  
Heat Transport ◽  
Two Phase ◽  
Phase Fluid

Lattice-Boltzmann Simulation of Two-Phase Fluid Flows

1998 ◽  
Vol 09 (08) ◽  
pp. 1383-1391 ◽  
Author(s):  
Yu Chen ◽  
Shulong Teng ◽  
Takauki Shukuwa ◽  
Hirotada Ohashi
Keyword(s):  
Lattice Boltzmann ◽  
Fluid Flows ◽  
Navier Stokes ◽  
Interface Model ◽  
Two Phase ◽  
Navier Stokes Equation ◽  
Lattice Boltzmann Simulation ◽  
Dam Breaking ◽  
Volumetric Stress ◽  
Phase Fluid

A model with a volumetric stress tensor added to the Navier–Stokes Equation is used to study two-phase fluid flows. The implementation of such an interface model into the lattice-Boltzmann equation is derived from the continuous Boltzmann BGK equation with an external force term, by using the discrete coordinate method. Numerical simulations are carried out for phase separation and "dam breaking" phenomena.

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