Nonstationary secondary flows in spherical layersSpringer Science and Business Media LLC - Tập 33 - Trang 463-465 - 1998
A. A. Monakhov
An experimental study of the change in secondary flow type at the main flow
stability limit is presented. For spheres rotating in the same direction, it is
found that the passage from the main flow to a three-dimensional secondary flow
occurs via a nonstationary transition regime. The paper continues the study [1]
in which the three-dimensional stability limit of the main flow in the space of
the ... hiện toàn bộ
Supersonic nonuniform viscous gas flow past a blunt body with supply of gas from the surfaceSpringer Science and Business Media LLC - Tập 23 - Trang 585-591 - 1988
I. G. Eremeitsev, N. N. Pilyugin, S. A. Yunitskii
The problem of axisymmetric nonuniform gas flow past smooth blunt bodies at high
Mach numbers is investigated. The approach stream is a parallel axisymmetric
flow in which the velocity and temperature depend on the radial distance from
the axis of symmetry and the pressure is constant. On the axis of symmetry the
velocity has a minimum and the temperature a maximum. A characteristic feature
of thi... hiện toàn bộ
Relaxation, propagation of sound, and transfer processes in molecular gasesSpringer Science and Business Media LLC - Tập 5 - Trang 758-769 - 1970
M. Ya. Alievskii
Taking account of rotational and vibrational degrees of freedom of the
molecules, a system of equations has been obtained for a molecular gas which
describes slightly nonequilibrium states with a length and time on the order of
magnitude of the length and time of the rotational and vibrational relaxation.
By solving this system, which describes the propagation of sound and the
transfer process, th... hiện toàn bộ
Method of Selective Injection of Chemical Reactants into a Inhomogeneous Layered ReservoirSpringer Science and Business Media LLC - Tập 36 - Trang 971-976 - 2001
S. N. Repetov, K. M. Fedorov
The unsteady process of homogeneous compressible fluid flow through a porous
weakly deformable inhomogeneous layered reservoir is considered in the absence
of a hydrodynamic connection between the layers. A method of selective injection
of chemical reactants into high- or low-permeability parts of the reservoir
based on fluid injection at a rate determined by the intensity of the well-bore
crossfl... hiện toàn bộ
On the propagation of pressure waves in saturated porous mediaSpringer Science and Business Media LLC - Tập 31 - Trang 865-867 - 1996
M. P. Levin
The problem of the propagation of pressure waves through compressible porous
media saturated with a slightly compressible fluid is considered. By using
Darcy's law the problem is reduced to a mixed initial-boundary value problem for
an equation of the heat conduction type with a nonlinear term. The method of
quasi-characteristics is used to solve this equation numerically. Solutions of
the wave pr... hiện toàn bộ
Self-similar solutions describing the propagation of solitary waves above underwater ridges and troughsSpringer Science and Business Media LLC - - 1985
I. B. Bakholdin
The nonlinear ray method [1] is used to investigate the propagation of solitary
waves over an uneven bottom. In the process of nonlinear evolution of the wave
front, singular points develop in it; these are treated in the given model as
discontinuities [2, 3]. In contrast to earlier studies, it is not assumed here
that the intensity of the discontinuity is weak. Boundary conditions at the
disconti... hiện toàn bộ
Exact Solution of the Heat Transfer Problem for a Rotating Disk under Uniform Jet ImpingementSpringer Science and Business Media LLC - Tập 38 - Trang 18-27 - 2003
I. V. Shevchuk
An exact solution of the heat transfer problem for a uniform air stream
impinging on a rotating disk is found. By introducing self-similar radial
velocity and temperature profiles, the problem is reduced to a system of
ordinary differential equations which are solved numerically. The Nusselt
numbers are calculated for Prandtl numbers equal to 1 and 0.71 and various
ratios of the free-stream veloci... hiện toàn bộ
Multicomponent diffusion of various admixtures in turbulent flowSpringer Science and Business Media LLC - Tập 25 - Trang 327-334 - 1990
A. Yu. Klimenko
Averaged equations describing the turbulent diffusion of a chemically active
admixture in coordinates tied to the instantaneous values of the concentration
of another passive admixture are obtained. The results can be readily extended
to the case of an arbitrary number of different chemically active admixtures. An
advantage of this approach is the separation of the scales of the fluctuating
and av... hiện toàn bộ