Open AccessCharacterization of exchange flows within pressure exchanger device by Lattice Boltzmann method
Author(s) -
Yao Shi,
Qingcha Liu,
Yiding Zhao
Publication year - 2019
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1300/1/012040
Subject(s) - lattice boltzmann methods , desalination , mechanics , flow (mathematics) , mixing (physics) , seawater , thermodynamics , environmental science , materials science , chemistry , physics , geology , membrane , biochemistry , oceanography , quantum mechanics
Seawater reverse osmosis (SWRO) with pressure exchanger (PX) been used widely on the earth for desalination to produce fresh water. Mixing due to exchange flow is considered to be dominant. In this paper, full-depth exchange flow is numerically simulated by Palabos, an open source program based on Lattice Boltzmann Method. GIF pictures and data produced by Palabos are analyzed to figure out how exchange flow processes. The velocity of the current front U=0.45 √(g(1 − γ)H is obtained from analysis. The results from the simulation are consistent with the Benjamin’s energy-conserving theory very well for full-depth exchange flow.