viscosity – TechConnect Briefs

Percolation theory at work – boosting the heat transfer performance of graphitic nanofluids

Timofeeva E.V., Singh D., Yu W., France D., Argonne National Laboratory, US

A plethora of studies have reported high thermal conductivity of nanofluids with high aspect ratio carbon nanoparticles such as graphenes and carbon nanotubes. Although many repot thermal conductivity enhancements in carbonaceous nanofluids there is no [...]

Probing Critical Particle to Polymer Size Ratios for Non-Einstein Behavior in Polymer Nanocomposites

Schmidt R.G., Gordon G.V., Swier S., Cosgrove T., Dow Corning Corporation, US

Enhanced studies of polymer nanocomposites(PNCs)has led to multiple discoveries of PNC's that exhibit viscosity behavior counter to the classical behavior for filled systems originally defined by Einstein(1). Opposed to the viscosity increase typically observed for [...]

Effective Viscosity of the nanofluids: Experimental studying and molecular dynamics simulation

Rudyak V.Ya., Dimov S.V., Krasnolutsky S.L., Ivanov D.A., Novosibirsk State University of Architecture & Civil Engineering, RU

The studying the effective viscosity coefficient of the nanofluids is the object of present paper. Experimentally the viscosity of the nanofluids on basis of ethylene glycol and SiO2 nanoparticles was studied. It was shown that [...]

Experimental investigations on thermo physical properties of AL2O3/DMAC nanofluid

Mariappan V., Udayakumar M., Suresh S., Anand R.B., Shafeeq K.P., National Institute of Technology, Tiruchirappalli, IN

This paper investigate the thermo physical properties such as thermal conductivity and viscosity of Al2O3/DMAC nanofluid both by experimental and theoretical. The Al2O3 nanoparticle is prepared using microwave assisted chemical precipitation method. Then Al2O3/DMAC nanofluid [...]

Experimental investigation of thermo physical properties of synthetic oil based nanofluids

Suresh S., Selvakumar P., Bharath R., National Institute of Technology, Tiruchirappalli, IN

Thermophysical properties like thermal conductivity and viscosity of thermic fluid based nanofluids are experimentally investigated. * Preparation of thermic fluid based nanofluid * Thermal conductivity measurement * Viscosity measurement

Experimental investigations on thermo physical properties of AL2O3/DMAC nanofluid

Mariappan V., Udayakumar M., Suresh S., Anand R.B., Shafeeq K.P., National Institute of Technology, Tiruchirappalli, IN

This paper investigate the thermo physical properties such as thermal conductivity and viscosity of Al2O3/DMAC nanofluid both by experimental and theoretical. The Al2O3 nanoparticle is prepared using microwave assisted chemical precipitation method. Then Al2O3/DMAC nanofluid [...]

Experimental investigation of thermo physical properties of synthetic oil based nanofluids

Suresh S., Selvakumar P., Bharath R., National Institute of Technology, Tiruchirappalli, IN

Thermophysical properties like thermal conductivity and viscosity of thermic fluid based nanofluids are experimentally investigated. * Preparation of thermic fluid based nanofluid * Thermal conductivity measurement * Viscosity measurement

A Novel Compact Lab-on-a-Chip Nanosensor for In-Channel Liquid Viscosity Detection

Zhao J., Xu J., Xue W., Xue W., Washington State University Vancouver, US

Real-time monitoring of liquid’s viscosity has significant impacts on many areas such as medicine, biology and petrochemistry. However, most existing sensors have complicated fabrication and testing processes and are not truly compatible with fluidic systems [...]

Viscosity Behavior of Magnetic Nanoparticle Filled Fluids and Impact Resistance of Their Fabric Composites

Lee S-G, Chungnam National University, KR

Ferromagnetic fluid(FMF) and magneto-rheological fluid(MRF) have been prepared from iron oxide and iron alloy nanoparticles, respectively, with a proper fluidic medium. In the FMF, chemically synthesized iron oxide particles having diameters of several nanometers were [...]

Thermal Conductivity and Viscosity Measurements of Water-Based Silica Nanofluids

Bobbo S., Colla L., Scattolini M., Agresti F., Barison S., Pagura C., Fedele L., CNR-Consiglio Nazionale delle Ricerche, IT

Nanofluids are a new class of fluids that could significantly improve the thermal properties of fluids used as thermal vectors. They are obtained by dispersing in common fluids (water, glycol, oil) solid nanoparticles (diameter <100 [...]