Max-Planck-Institut für Ernährungsphysiologie, Rhein­ landdamm 201, D-4600 Dortmund 1, Bundesrepublik Deutschland Z. Naturforsch. 40c, 588—591 (1985); received January 17, 1985 Hydrodynamic Instabilites, Reaction-Convection Patterns, Surface Tension, Oscillating Yeast Extract, Two-Dimensional Spectrophotometry Spatial pattern formation during oscillating glycolysis in a thin layer of extract fr...

The transient hydrodynamics and thermal behaviors of fluid flow in open-ended vertical parallel-plate porous microchannel are investigated semi-analytically under the effect of the hyperbolic heat conduction model. The model that combines both the continuum approach and the possibility of slip at the boundary is adopted in the study. The Effects of Knudsen number , Darcy number , and thermal re...

The paper numerically presents laminar forced convection of a nanofluid flowing in a duct at microscale. Results were compared with both analytical and experimental data and observed good concordance with previous studies available in the literature. Influences of Brinkman and Reynolds number on thermal and hydrodynamic indexes have been investigated. For a given nanofluid, no change in efficie...

PROTEIN STABILITY Taylor Dispersion Analysis (TDA) is a microcapillary flow-based technique whereby a nanoliter-scale sample pulse is injected into the laminar flow of run buffer, which then spreads out axially due to the combined actions of convection and radial diffusion. Detection of the equilibrium concentration profile (or Taylorgram) of the dispersed sample pulse allows the molecular diff...

Spatially extended stationary and traveling states in the strongly nonlinear regime of convection in layers of binary fluid mixtures heated from below are described by a few–mode–model. It is derived from the proper hydrodynamic balance equations including experimentally relevant boundary conditions with a non–standard Galerkin approximation that uses numerically obtained, symmetry decomposed m...

We developed a 3D pure LTE radiative transfer code to derive observables expected for RSGs, with emphasis on small scale structures, from radiative-hydrodynamic (RHD) simulations of red supergiant stars (RSGs) carried out with CO5BOLD (Freytag et al., 2002). We show that the convection-related surface structures are observable with today’s interferometers. Moreover, the RHD simulations are a gr...

The shear-current effect in a nonrotating homogeneous turbulent convection with a large-scale constant shear is studied. The large-scale velocity shear causes anisotropy of turbulent convection, which produces the mean electromotive force epsilon (W) proportional to W x J and the mean electric current along the original mean magnetic field, where W is the background mean vorticity due to the sh...