Multiscale theory of turbulence in wavelet representation
نویسندگان
چکیده
منابع مشابه
Multiscale theory of turbulence in wavelet representation
We present a multiscale description of hydrodynamic turbulence in incompressible fluid based on a continuous wavelet transform (CWT) and a stochastic hydrodynamics formalism. Defining the stirring random force by the correlation function of its wavelet components, we achieve the cancellation of loop divergences in the stochastic perturbation expansion. An extra contribution to the energy transf...
متن کاملMultiscale image representation using scale-space theory
Image simplification reduces the information content of an image while preserving as much as possible its essential features, being frequently used as a preprocessing stage in several algorithms to suppress undesired details such as noise. In this paper, we explore the scale-space properties of a toggle operator defined using mathematical morphology operations. The scale-space theory is a multi...
متن کاملMultiscale Fundamental Forms: A Multimodal Image Wavelet Representation
In this paper, a new wavelet representation for multimodal images is presented. The idea for this representation is based on the first fundamental form that provides a local measure for the contrast of a multimodal image. In this paper, this concept is extended towards multiscale fundamental forms using the dyadic wavelet transform of Mallat. The multiscale fundamental forms provide a local mea...
متن کاملA multivalued image wavelet representation based on multiscale fundamental forms
In this paper, a new wavelet representation for multivalued images is presented. The idea for this representation is based on the first fundamental form that provides a local measure for the contrast of a multivalued image. In this paper, this concept is extended toward multiscale fundamental forms using the dyadic wavelet transform of Mallat. The multiscale fundamental forms provide a local me...
متن کاملModel Representation for Self - Consistent - Field Theory of Isotropic Turbulence
In this paper, Langevin model equation is proposed for Fourier modes of velocity field of isotropic turbulence whose statistical properties are identical to those governed by equations of Self-Consistent-Field (SCF) theory of turbulence [J. R. Herring, Physics of Fluids 9, 2106 (1966)].
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: Doklady Physics
سال: 2006
ISSN: 1028-3358,1562-6903
DOI: 10.1134/s1028335806090060