نتایج جستجو برای: shear thinning fluid

تعداد نتایج: 293974  

Journal: :Int. J. Math. Mathematical Sciences 2005
Constantin Fetecau K. Kannan

The laminar flow of a number of fluids such as polymeric liquids, food products, paints, slurries, foams, and so forth cannot be adequately described by the help of the classical linearly viscous Newtonian model. Thus, there is a need to have at hand an arsenal of non-Newtonian fluid models and over the past several decades a variety of models have been developed. While the fluids of the differ...

2010
Azuraien Jaafar Marcel P. Escudier Robert J. Poole

In this study the pressure-drop, mean and rms axial velocity data are measured using a differential pressure transducer and a laser Doppler anemometer for the flow of Newtonian and non-Newtonian fluids in a concentric annular pipe (radius ratio =0.5) at various Reynolds numbers encompassing the laminar, transitional and turbulent regimes. Three different fluids are utilized; a semi-rigid shear-...

Journal: :journal of heat and mass transfer research(jhmtr) 2014
milad tajik jamal-abad maziar dehghan seyfolah saedodin mohammad sadegh valipour amirhossein zamzamian

rheological characteristics of al2o3, cuo and tio2 nano particles were investigated in oil asthe base fluid at 1 and 2 wt.%. constitutive relations for non-newtonian fluid were discussedbased on the power-law model. measured viscosities of each nanofluid were used to evaluatethe power-law and consistency index. results indicated that the nanofluid viscosity decreasedby increasing the concentrat...

Journal: :Lab on a chip 2015
Yong Ren Zhou Liu Ho Cheung Shum

The breakup dynamics in non-Newtonian multiphase microsystems is associated with a variety of industrial applications such as food production and biomedical engineering. In this study, we numerically and experimentally characterize the dripping-to-jetting transition under various flow conditions in a Newtonian/shear-thinning multiphase microsystem. Our work can help to predict the formation of ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - پژوهشگاه پلیمر و پتروشیمی ایران - پژوهشکده پتروشیمی 1390

هدف اصلی این پروژه شبیه سازی رفتار جریان سیالات shear thinning در محیط متخلخل با نفوذپذیری بالا توسط روش المان محدود می باشد. با توجه به میزان تخلخل محیط و عدد رینولدز، مدل های مختلفی برای جریان در محیط متخلخل ارائه شده اند. در شرایطی که سرعت جریان به اندازه کافی پایین باشد و بتوان از اثر اینرسی صرف نظر کرد، معادله brinkman میتواند به خوبی برای پیش بینی رفتار جریان در محیط متخلخل استفاده شود. د...

2016
Akhilesh Khapre Basudeb Munshi

The paper focuses on the data collected from the mixing of shear thinning non-Newtonian fluids in a cylindrical tank by a Rushton turbine. The data presented are obtained by using Computational Fluid Dynamics (CFD) simulation of fluid flow field in the entire tank volume. The CFD validation data for this study is reported in the research article 'Numerical investigation of hydrodynamic behavior...

Amirhossein Zamzamian Maziar Dehghan Milad Tajik Jamal-Abad Mohammad Sadegh Valipour, Seyfolah Saedodin

Rheological characteristics of Al2O3, CuO and TiO2 nano particles were investigated in oil asthe base fluid at 1 and 2 wt.%. Constitutive relations for non-Newtonian fluid were discussedbased on the power-law model. Measured viscosities of each nanofluid were used to evaluatethe power-law and consistency index. Results indicated that the nanofluid viscosity decreasedby increasing the concentrat...

2006
ABDELMONIM ARTOLI

Pulsatile non-Newtonian blood flow in an idealized vessel is numerically investigated. The CarreauYasuda model is used to account for the shear-thinning viscosity of blood. For validation purposes, we have used two numerical methods: a mesoscopic lattice-Boltzmann equation and a standard finite element solver. Good agreement for the velocity and the shear stress has been obtained from the two a...

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