Model for predicting the critical size of aggregates in nanofluids

Jung Yeul Jung; Junemo Koo; Yong Tae Kang

doi:10.1007/s12206-013-0224-6

Model for predicting the critical size of aggregates in nanofluids

Jung Yeul Jung, Junemo Koo, Yong Tae Kang

Research output: Contribution to journal › Article › peer-review

11 Citations (Scopus)

Abstract

Stable suspension of the nanoparticles in the base fluids is inevitable to have the nanofluids be operated properly. Here we report the theoretical model to find the critical size of aggregates in nanofluids for the first time. The concept of relaxation time τ_r is adopted, which reflects the probability of encountering the particles. The hydrodynamic diameter of the aggregates in nanofluids must be kept below the critical size to be stably suspended, which is in good agreement with the experimental results.

Original language	English
Pages (from-to)	1165-1169
Number of pages	5
Journal	Journal of Mechanical Science and Technology
Volume	27
Issue number	4
DOIs	https://doi.org/10.1007/s12206-013-0224-6
Publication status	Published - 2013 Apr
Externally published	Yes

Bibliographical note

Funding Information:
This work was supported by a grant from Kyung Hee University in 2010 (KHU-20100186).

Keywords

Brownian motion
Critical size
Interparticle interaction
Nanofluid

ASJC Scopus subject areas

Mechanics of Materials
Mechanical Engineering

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10.1007/s12206-013-0224-6

Cite this

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abstract = "Stable suspension of the nanoparticles in the base fluids is inevitable to have the nanofluids be operated properly. Here we report the theoretical model to find the critical size of aggregates in nanofluids for the first time. The concept of relaxation time τr is adopted, which reflects the probability of encountering the particles. The hydrodynamic diameter of the aggregates in nanofluids must be kept below the critical size to be stably suspended, which is in good agreement with the experimental results.",

keywords = "Brownian motion, Critical size, Interparticle interaction, Nanofluid",

author = "Jung, {Jung Yeul} and Junemo Koo and Kang, {Yong Tae}",

note = "Funding Information: This work was supported by a grant from Kyung Hee University in 2010 (KHU-20100186).",

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AU - Koo, Junemo

AU - Kang, Yong Tae

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PY - 2013/4

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N2 - Stable suspension of the nanoparticles in the base fluids is inevitable to have the nanofluids be operated properly. Here we report the theoretical model to find the critical size of aggregates in nanofluids for the first time. The concept of relaxation time τr is adopted, which reflects the probability of encountering the particles. The hydrodynamic diameter of the aggregates in nanofluids must be kept below the critical size to be stably suspended, which is in good agreement with the experimental results.

AB - Stable suspension of the nanoparticles in the base fluids is inevitable to have the nanofluids be operated properly. Here we report the theoretical model to find the critical size of aggregates in nanofluids for the first time. The concept of relaxation time τr is adopted, which reflects the probability of encountering the particles. The hydrodynamic diameter of the aggregates in nanofluids must be kept below the critical size to be stably suspended, which is in good agreement with the experimental results.

KW - Brownian motion

KW - Critical size

KW - Interparticle interaction

KW - Nanofluid

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Model for predicting the critical size of aggregates in nanofluids

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

Access to Document

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