منابع مشابه
Modeling and rendering viscous liquids
We present a particle-based algorithm for modeling highly viscous liquids. Using a numerical time-integration of particle acceleration and velocity, we apply external forces to particles and use a convenient organization, the adhesion matrix, to represent forces between different types of liquids and objects. Viscosity is handled by performing a momentum exchange between particle pairs such tha...
متن کاملElectric-field-induced patterns in soft viscoelastic films: from long waves of viscous liquids to short waves of elastic solids.
We show that the electric field driven surface instability of viscoelastic films has two distinct regimes: (1) The viscoelastic films behaving like a liquid display long wavelengths governed by applied voltage and surface tension, independent of its elastic storage and viscous loss moduli, and (2) the films behaving like a solid require a threshold voltage for the instability whose wavelength a...
متن کاملAtomic force microscopy in viscous ionic liquids.
Extracting quantitative information from amplitude-modulation atomic force microscopy (AM-AFM) in viscous ionic liquids is difficult because existing theory requires knowledge of the cantilever natural frequency, which cannot be measured in the absence of a resonance peak. We present a new model that describes cantilever dynamics in an overdamped medium (Q < 0.5) and derive the theory necessary...
متن کاملTime-temperature superposition in viscous liquids.
Dielectric relaxation measurements on supercooled triphenyl phosphite show that time-temperature superposition (TTS) is obeyed for the primary relaxation process at low temperatures. Measurements on other molecular liquids close to the calorimetric glass transition indicate that TTS is linked to an omega(-1/2) high-frequency decay of the loss, while the loss peak width is nonuniversal.
متن کاملEffects of Geometrical Variables of Helical Ribbon Impellers on Mixing of Highly Viscous Newtonian Liquids
Mixing patterns in agitated vessels equipped with various types of helical ribbon impellers are observed by using capsules of liquid crystal as a tracer. As a result, the optimumgeometrical variables for the mixing process are provided and the results explained by considering the relation between the mixing pattern and impeller geometry. A mathematical model is developed and applied in order to...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Nature
سال: 1938
ISSN: 0028-0836,1476-4687
DOI: 10.1038/142791a0