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Journal of Nanostructures، جلد ۵، شماره ۲، صفحات ۱۶۱-۱۶۸
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عنوان انگلیسی Investigation of Nanoparticles Morphology on Viscosity of Nanofluids and New Correlation for Prediction
چکیده انگلیسی مقاله This article presents an experimental investigation on effects of morphology of nanoparticles on the viscosity nanofluids (NFs). Water and ethylene glycol were used as base fluids. A two step method was used for preparation of NFs. SiO2 nanoparticles, CNT and graphene nano sheets were dispersed in the base fluids separately with the volume fraction ranging from 0.05% to 1.5%. Stability of the nanoparticles was established by adding adequate surfactant and sonication enough time. Then viscosity of the NFs was measured by Brookfield viscometer at fix ambient temperature. First, it has been concluded that, viscosity of NFs increases significantly with increasing of nanoparticle volume fraction. Then the results of theoretical models (Einstein, Brinkman, Batchelor and Wang) were compared with experimental data and the deviation of theme was calculated. In order to reduce of this deviation, a correlation was developed based on the geometry of nanoparticles. The modified models showed reasonably better agreement with the experimental results
کلیدواژه‌های انگلیسی مقاله CNT,Graphene,Nanofluid,Morphology,Viscosity
نویسندگان مقاله a قضاتلو |
research institute of petroleum industry ripi , west blvd. azadi sport complex, p.o. box 14665-137, tehran, iran
سازمان اصلی تایید شده: پژوهشگاه صنعت نفت (Research institute of petroleum industry)

s عظیمی ملکی | azimi maleki
department of chemical engineering, college of chemical engineering, mahshahr branch, islamic azad university, mahshahr, iran.
سازمان اصلی تایید شده: دانشگاه آزاد اسلامی علوم و تحقیقات (Islamic azad university science and research branch)

m شریعتی نیاسر | shariaty niassar
transport phenomena and nanotechnology laboratory tpnt , department of chemical engineering, school of eng., university of tehran, p.o. box 11155-4563, tehran, iran
سازمان اصلی تایید شده: دانشگاه تهران (Tehran university)

a مراد رشیدی | morad rashidi
research institute of petroleum industry ripi , west blvd. azadi sport complex, p.o. box 14665-137, tehran, iran
سازمان اصلی تایید شده: پژوهشگاه صنعت نفت (Research institute of petroleum industry)

نشانی اینترنتی http://jns.kashanu.ac.ir/article_10319_1bb8dedd9e637111219782fe8b544528.pdf
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