Cargando…
A Comparative Study of Cavitation Characteristics of Nano-Fluid and Deionized Water in Micro-Channels
Hydrodynamic cavitation has been widely applied in micro-fluidic systems. Cavitating flow characteristics are closely related to the fluid properties. In this paper, the cavitation characteristics of Cu nano-fluid in micro-channels were numerically investigated and compared with those of the deioniz...
Autores principales: | , , , , , |
---|---|
Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2020
|
Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7143311/ https://www.ncbi.nlm.nih.gov/pubmed/32188128 http://dx.doi.org/10.3390/mi11030310 |
_version_ | 1783519583517278208 |
---|---|
author | Li, Tao Liu, Bin Zhou, Jinzhi Xi, Wenxuan Huai, Xiulan Zhang, Hang |
author_facet | Li, Tao Liu, Bin Zhou, Jinzhi Xi, Wenxuan Huai, Xiulan Zhang, Hang |
author_sort | Li, Tao |
collection | PubMed |
description | Hydrodynamic cavitation has been widely applied in micro-fluidic systems. Cavitating flow characteristics are closely related to the fluid properties. In this paper, the cavitation characteristics of Cu nano-fluid in micro-channels were numerically investigated and compared with those of the deionized (DI) water. The mathematical model was verified by comparing the numerical results with the experiment observation. The curved orifice (R = 0.3 mm) was found to have the highest efficiencies of cavitation for both fluids. With the increase of inlet pressure, cavitating jet lengths of the two fluids significantly increased. While, the cavitating jet length of the nano-fluid was shorter than that of the DI water at the same inlet pressure. The cavitation inception number of the DI water and nano-fluid were approximately 0.061 and 0.039, respectively. The results indicate that the nano-particles played negative effects on the cavitation inception. In addition, with the decrease of outlet pressure, the cavitation strength gradually increased and the mass flow rate remained nearly unchanged at the same time. |
format | Online Article Text |
id | pubmed-7143311 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2020 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-71433112020-04-14 A Comparative Study of Cavitation Characteristics of Nano-Fluid and Deionized Water in Micro-Channels Li, Tao Liu, Bin Zhou, Jinzhi Xi, Wenxuan Huai, Xiulan Zhang, Hang Micromachines (Basel) Article Hydrodynamic cavitation has been widely applied in micro-fluidic systems. Cavitating flow characteristics are closely related to the fluid properties. In this paper, the cavitation characteristics of Cu nano-fluid in micro-channels were numerically investigated and compared with those of the deionized (DI) water. The mathematical model was verified by comparing the numerical results with the experiment observation. The curved orifice (R = 0.3 mm) was found to have the highest efficiencies of cavitation for both fluids. With the increase of inlet pressure, cavitating jet lengths of the two fluids significantly increased. While, the cavitating jet length of the nano-fluid was shorter than that of the DI water at the same inlet pressure. The cavitation inception number of the DI water and nano-fluid were approximately 0.061 and 0.039, respectively. The results indicate that the nano-particles played negative effects on the cavitation inception. In addition, with the decrease of outlet pressure, the cavitation strength gradually increased and the mass flow rate remained nearly unchanged at the same time. MDPI 2020-03-16 /pmc/articles/PMC7143311/ /pubmed/32188128 http://dx.doi.org/10.3390/mi11030310 Text en © 2020 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Li, Tao Liu, Bin Zhou, Jinzhi Xi, Wenxuan Huai, Xiulan Zhang, Hang A Comparative Study of Cavitation Characteristics of Nano-Fluid and Deionized Water in Micro-Channels |
title | A Comparative Study of Cavitation Characteristics of Nano-Fluid and Deionized Water in Micro-Channels |
title_full | A Comparative Study of Cavitation Characteristics of Nano-Fluid and Deionized Water in Micro-Channels |
title_fullStr | A Comparative Study of Cavitation Characteristics of Nano-Fluid and Deionized Water in Micro-Channels |
title_full_unstemmed | A Comparative Study of Cavitation Characteristics of Nano-Fluid and Deionized Water in Micro-Channels |
title_short | A Comparative Study of Cavitation Characteristics of Nano-Fluid and Deionized Water in Micro-Channels |
title_sort | comparative study of cavitation characteristics of nano-fluid and deionized water in micro-channels |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7143311/ https://www.ncbi.nlm.nih.gov/pubmed/32188128 http://dx.doi.org/10.3390/mi11030310 |
work_keys_str_mv | AT litao acomparativestudyofcavitationcharacteristicsofnanofluidanddeionizedwaterinmicrochannels AT liubin acomparativestudyofcavitationcharacteristicsofnanofluidanddeionizedwaterinmicrochannels AT zhoujinzhi acomparativestudyofcavitationcharacteristicsofnanofluidanddeionizedwaterinmicrochannels AT xiwenxuan acomparativestudyofcavitationcharacteristicsofnanofluidanddeionizedwaterinmicrochannels AT huaixiulan acomparativestudyofcavitationcharacteristicsofnanofluidanddeionizedwaterinmicrochannels AT zhanghang acomparativestudyofcavitationcharacteristicsofnanofluidanddeionizedwaterinmicrochannels AT litao comparativestudyofcavitationcharacteristicsofnanofluidanddeionizedwaterinmicrochannels AT liubin comparativestudyofcavitationcharacteristicsofnanofluidanddeionizedwaterinmicrochannels AT zhoujinzhi comparativestudyofcavitationcharacteristicsofnanofluidanddeionizedwaterinmicrochannels AT xiwenxuan comparativestudyofcavitationcharacteristicsofnanofluidanddeionizedwaterinmicrochannels AT huaixiulan comparativestudyofcavitationcharacteristicsofnanofluidanddeionizedwaterinmicrochannels AT zhanghang comparativestudyofcavitationcharacteristicsofnanofluidanddeionizedwaterinmicrochannels |