Document Detail


A theoretical study of hydrodynamic cavitation.
MedLine Citation:
PMID:  17532249     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The optimization of hydrodynamic cavitation as an AOP requires identifying the key parameters and studying their effects on the process. Specific simulations of hydrodynamic bubbles reveal that time scales play a major role on the process. Rarefaction/compression periods generate a number of opposing effects which have demonstrated to be quantitatively different from those found in ultrasonic cavitation. Hydrodynamic cavitation can be upscaled and offers an energy efficient way of generating cavitation. On the other hand, the large characteristic time scales hinder bubble collapse and generate a low number of cavitation cycles per unit time. By controlling the pressure pulse through a flexible cavitation chamber design these limitations can be partially compensated. The chemical processes promoted by this technique are also different from those found in ultrasonic cavitation. Properties such as volatility or hydrophobicity determine the potential applicability of HC and therefore have to be taken into account.
Authors:
S Arrojo; Y Benito
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Publication Detail:
Type:  Journal Article     Date:  2007-04-02
Journal Detail:
Title:  Ultrasonics sonochemistry     Volume:  15     ISSN:  1350-4177     ISO Abbreviation:  Ultrason Sonochem     Publication Date:  2008 Mar 
Date Detail:
Created Date:  2007-11-13     Completed Date:  2008-03-31     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9433356     Medline TA:  Ultrason Sonochem     Country:  Netherlands    
Other Details:
Languages:  eng     Pagination:  203-11     Citation Subset:  IM    
Affiliation:
Investigador, Grupo Tecnologías del Agua, CIEMAT, Av. Complutense 22, 28040 Madrid, Spain. sarrojo@gmail.com
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MeSH Terms
Descriptor/Qualifier:
Acoustics
Chemistry / methods
Computer Simulation
Equipment Design
Models, Chemical
Models, Theoretical
Pressure
Rheology / methods
Scattering, Radiation
Surface Properties
Time Factors
Ultrasonics*

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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