Results 31 to 40 of about 728,970 (370)
Topological Waves in Fluids with Odd Viscosity. [PDF]
Physical Review Letters, 2018 Fluids in which both time reversal and parity are broken can display a dissipationless viscosity that is odd under each of these symmetries. Here, we show how this odd viscosity has a dramatic effect on topological sound waves in fluids, including the ...
A. Souslov +4 more
semanticscholar +1 more source
On variable viscosity and enhanced dissipation [PDF]
arXiv, 2021 In this article we consider the 2D Navier-Stokes equations with variable viscosity depending on the vertical position. As our main result we establish linear enhanced dissipation near the non-affine stationary states replacing Couette flow. Moreover it turns out that the shear flow overcompensates for weakening viscosity: decreasing viscosity leads to ...
arxiv
Bulk viscosity-driven suppression of shear viscosity effects on the flow harmonics at RHIC [PDF]
Phys. Rev. C 90, 034907 (2014), 2014 The interplay between shear and bulk viscosities on the flow harmonics, $v_n$'s, at RHIC is investigated using the newly developed relativistic 2+1 hydrodynamical code v-USPhydro that includes bulk and shear viscosity effects both in the hydrodynamic evolution and also at freeze-out.
arxiv +1 more source
Viscosity in strongly interacting quantum field theories from black hole physics.
Physical Review Letters, 2005 The ratio of shear viscosity to volume density of entropy can be used to characterize how close a given fluid is to being perfect. Using string theory methods, we show that this ratio is equal to a universal value of variant Planck's over 2pi/4pik(B) for
P. Kovtun, D. T. Son, A. Starinets
semanticscholar +1 more source
Effects of pH values on the properties of buffalo and cow butter-based low-fat spreads
Grasas y Aceites, 2014 The objective of this study was to characterize the effects of pH values (5, 5.5, 6, 6.5 and 7) on the properties of buffalo and cow butter-based low-fat spreads.
A. M. Abdeldaiem +3 more
doaj +1 more source
THE TRUE VISCOSITY AND THE COLLOIDAL VISCOSITY [PDF]
Bulletin of the Chemical Society of Japan, 1926 Abstract There are two kinds of viscosities, viz. the true viscosity and the colloidal viscosity. They can be distinguished by the conductivity measurements. The true viscosity give strong effect on the conductivity but the colloidal viscosity give slight effect on it.
openaire +2 more sources
Microfluidic Bioprinting of Heterogeneous 3D Tissue Constructs Using Low‐Viscosity Bioink
Advances in Materials, 2016 A novel bioink and a dispensing technique for 3D tissue-engineering applications are presented. The technique incorporates a coaxial extrusion needle using a low-viscosity cell-laden bioink to produce highly defined 3D biostructures. The extrusion system
C. Colosi +8 more
semanticscholar +1 more source
Should Rheological Properties of Activated Sludge Be Measured?
Applied Rheology, 2015 The core of activated sludge monitoring lies in the biological analyses. Anyway, the knowledge of sludge physical characteristics is crucial for a proper management of WWTPs (Waste Water Treatment Plants). One of these physical features is viscosity that,
Papa Matteo +3 more
doaj +1 more source
Evaluation of Performance of Crankcase Oil in a Biodiesel Engine - A Case Study
Tribology Online, 2011 Study on usage of biodiesel, its impact on lubrication oil and its drain period, engine components are still under investigation. This experimental study investigates the effect of B20 FME (Fish oil methyl ester) on lubricating oil performance & ...
Gopalasamy Sriram, Abhishek Kumar
doaj +1 more source
Odd viscosity in chiral active fluids [PDF]
Nature Communications, 2017 We study the hydrodynamics of fluids composed of self-spinning objects such as chiral grains or colloidal particles subject to torques. These chiral active fluids break both parity and time-reversal symmetries in their non-equilibrium steady states. As a
D. Banerjee +3 more
semanticscholar +1 more source