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Stability of steady-state non-Newtonian fluid layer flow
Springer Science and Business Media LLC - Tập 47 Số 6 - Trang 694-701 - 2012
D. V. Lyubimov, A. V. Perminov
Relaxation, propagation of sound, and transfer processes in molecular gases
Springer 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
On the propagation of pressure waves in saturated porous media
Springer 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 troughs
Springer 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
Multicomponent diffusion of various admixtures in turbulent flow
Springer 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
Mathematical modeling of the one-dimensional processes of oil displacement by an active solution
Springer Science and Business Media LLC - Tập 22 - Trang 420-430 - 1987
A. F. Zazovskii
The previously proposed model of oil displacement by an active solution [1, 2] is extended to the case in which the relative phase permeabilities depend on the percolation velocity and interfacial tension as functions of the active agent concentration. For this purpose the phase permeability curves are approximated by functions of two variables — saturation and capillary number. An analytical desc...... hiện toàn bộ
Supersonic flow around a large body in an exponential atmosphere
Springer Science and Business Media LLC - - 1978
A. S. Kutsaev
The problem of axisymmetric supersonic flow around a large body is solved in the case when the body is moving at constant velocity in an exponential atmosphere. The nonsteady conditions in the incoming flow are characterized by the Strouhal number. From numerical solutions for different Strouhal numbers, the deviation of the flow from quasisteady conditions is investigated.
Determination of the slippage rate for a binary mixture of gases
Springer Science and Business Media LLC - - 1972
V. A. Zharov
Separation of chemical elements in the discharge channel of an inductive plasma gun
Springer Science and Business Media LLC - Tập 45 - Trang 647-655 - 2010
V. I. Sakharov
Zones of separation of chemical elements in the air plasma flow in the discharge channel of the VGU-4 100-kW inductive plasma gun with a sonic nozzle of the Institute for Problems in Mechanics of the Russian Academy of Sciences are determined from an analysis of numerical solutions obtained within the framework of the Navier-Stokes equations. The occurrence of these zones and their possible influe...... hiện toàn bộ
Experimental investigation of return currents in electrogasdynamic flows
Springer Science and Business Media LLC - Tập 13 - Trang 97-102 - 1978
V. A. Likhter, V. I. Shul'gin
An investigation is made of return electric currents in electrogasdynamic flows for laboratory sources of unipolar charged particles. These currents play an important role in the process of airplane electrification as a result of the work of jet engines. Models have been built, making it possible to study the behavior of return currents outside and inside an axisymmetric electrogasdynamic flow, in...... hiện toàn bộ
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