Surface wrinkling of a channelized flow
نویسندگان
چکیده
Surface wrinkling of a channelized flow BY A. C. SLIM, N. J. BALMFORTH, R. V. CRASTER* AND J. C. MILLER Department of Mathematics, University of British Columbia, 1984 Mathematics Road, Vancouver, BC, Canada V6T 1Z2 Department of Earth and Ocean Sciences, University of British Columbia, 6339 Stores Road, Vancouver, BC, Canada V6T 1Z4 Department of Mathematics, Imperial College London, South Kensington Campus, London SW7 2AZ, UK Division of Mathematical Modeling, University of British Columbia Centre for Disease Control, 655 West 12th Avenue, Vancouver, BC, Canada V5Z 4R4
منابع مشابه
Wrinkling Scales of Turbulent Premixed Propagating Flame Fronts Obtained From LIF-OH Imaging
A key outstanding issue with turbulent premixed flames lies in modeling the burning rate which may be related to the flame surface density if the laminar flamelet assumption applies. Although it is generally accepted that, in the flamelet regimes, higher turbulence levels increases flame wrinkling and hence its surface density, recent imaging experiments are not consistent making this a controv...
متن کاملWrinkling instability of vesicles in steady linear flow
We present experimental observations and numerical simulations of a wrinkling instability that occurs at sufficiently high strain rates in the trembling regime of vesicle dynamics in steady linear flow. Spectral and statistical analysis of the data shows similarities and differences with the wrinkling instability observed earlier for vesicles in transient elongation flow. The critical relevance...
متن کاملWrinkling of vesicles during transient dynamics in elongational flow.
Recent experiments by Kantsler et al. [Phys. Rev. Lett. 99, 178102 (2007)10.1103/PhysRevLett.99.178102] have shown that the relaxational dynamics of a vesicle in external elongation flow is accompanied by the formation of wrinkles on a membrane. Motivated by these experiments we present a theory describing the dynamics of a wrinkled membrane. The formation of wrinkles is related to the dynamica...
متن کاملAnisotropic, hierarchical surface patterns via surface wrinkling of nanopatterned polymer films.
By combining surface wrinkling and nanopatterned polymer films, we create anisotropic, hierarchical surfaces whose larger length-scale (wrinkling wavelength) depends intimately on the geometry and orientation of the smaller length-scale (nanopattern). We systematically vary the pattern pitch, pattern height, and residual layer thickness to ascertain the dependence of the wrinkling wavelength on...
متن کاملWrinkling Measurement of the Mechanical Properties of Drying Salt Thin Films.
We report a time-resolved approach to probe the mechanical properties of thin films during drying and solidification based on surface wrinkling. The approach is demonstrated by measuring the modulus of a ternary system comprising an inorganic salt (aluminum chlorohydrate), a humectant (glycerol), and water across the glassy film formation pathway. The topography of mechanically induced wrinklin...
متن کامل