A STUDY ON THE THERMOPHYSICAL PROPERTIES OF WATER/ETHYLENE GLYCOL BASED NANOFLUIDS USING NON-EQUILIBRIUM MOLECULAR DYNAMICS AND COMPUTATIONAL FLUID DYNAMICS METHODS

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IZADKHAH MIRSHAHABEDDIN; ERFAN NIYA HAMID; MORADKHANI HAMED

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Journal: Modares Mechanical Engineering Year:2016 | Volume:16 | Issue:7 Page(s): 153-162

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Title

A STUDY ON THE THERMOPHYSICAL PROPERTIES OF WATER/ETHYLENE GLYCOL BASED NANOFLUIDS USING NON-EQUILIBRIUM MOLECULAR DYNAMICS AND COMPUTATIONAL FLUID DYNAMICS METHODS

Author(s)

IZADKHAH MIRSHAHABEDDIN | ERFAN NIYA HAMID | MORADKHANI HAMED | Issue Writer Certificate

Keywords

NANOFLUIDQ1

TITANIUM OXIDEQ1

NON-EQUILIBRIUM MOLECULAR DYNAMICSQ1

COMPUTATIONAL FLUID DYNAMICSQ1

THERMOPHYSICAL PROPERTIESQ1

Abstract

NANOFLUIDs are engineered by suspending nanoparticles with average sizes below 100 nm. The ever increasing thermal loads in such applications require advanced operational fluid characteristics, for example, high thermal conductivity dielectric oils in transformers and car radiators. These fluids require high thermal conduction, as well as electrical insulation. In the present work the thermophysical and rheological properties of the NANOFLUIDs such as thermal conductivity, viscosity and density are obtained from molecular dynamics simulations. These results serve as initial data for COMPUTATIONAL FLUID DYNAMICS simulations to calculate heat transfer coefficient. The results show that, adding TITANIUM OXIDE nanosheet in the base fluid enhanced the thermal conductivity and increased the viscosity and density of the base fluid. The theoretical calculations confirmed the molecular dynamics simulation results and the simulation methods accuracy. The COMPUTATIONAL FLUID DYNAMICS results show that increasing the amount of TITANIUM OXIDE nanosheet in the base fluid increases the heat transfer coefficient and increasing ethylene glycol ratio in base fluid leads to lower heat transfer coefficient. Also, nonequilibirium molecular dynamics method can be used as an effective and accurate method for NANOFLUIDs investigation. The coding that is used to obtain the thermal conductivity of NANOFLUID is a novel and modified type of non-equlibiruim molecular dynamics method. By using this coding the error persentages of simulations is decreased. The other advantage of this code is reducing the simulation process, because the molecular dynamics simulations need a long time for processing.

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APA: Copy

IZADKHAH, MIRSHAHABEDDIN, ERFAN NIYA, HAMID, & MORADKHANI, HAMED. (2016). A STUDY ON THE THERMOPHYSICAL PROPERTIES OF WATER/ETHYLENE GLYCOL BASED NANOFLUIDS USING NON-EQUILIBRIUM MOLECULAR DYNAMICS AND COMPUTATIONAL FLUID DYNAMICS METHODS. MODARES MECHANICAL ENGINEERING, 16(7), 153-162. SID. https://sid.ir/paper/178334/en

Vancouver: Copy

IZADKHAH MIRSHAHABEDDIN, ERFAN NIYA HAMID, MORADKHANI HAMED. A STUDY ON THE THERMOPHYSICAL PROPERTIES OF WATER/ETHYLENE GLYCOL BASED NANOFLUIDS USING NON-EQUILIBRIUM MOLECULAR DYNAMICS AND COMPUTATIONAL FLUID DYNAMICS METHODS. MODARES MECHANICAL ENGINEERING[Internet]. 2016;16(7):153-162. Available from: https://sid.ir/paper/178334/en

IEEE: Copy

MIRSHAHABEDDIN IZADKHAH, HAMID ERFAN NIYA, and HAMED MORADKHANI, “A STUDY ON THE THERMOPHYSICAL PROPERTIES OF WATER/ETHYLENE GLYCOL BASED NANOFLUIDS USING NON-EQUILIBRIUM MOLECULAR DYNAMICS AND COMPUTATIONAL FLUID DYNAMICS METHODS,” MODARES MECHANICAL ENGINEERING, vol. 16, no. 7, pp. 153–162, 2016, [Online]. Available: https://sid.ir/paper/178334/en

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