Zobrazeno 1 - 10
of 12
pro vyhledávání: '"M. M. Nazarchuk"'
Autor:
M. M. Nazarchuk
Publikováno v:
Journal of Engineering Physics. 8:213-218
Results are given of a theoretical analysis of an adiabatic gas flow in a plane-parallel channel near the critical point. It is shown that the velocity profile ahead of the critical point must fill out, and that the mean velocity at the critical sect
Autor:
M. M. Nazarchuk
Publikováno v:
Journal of Engineering Physics. 8:492-495
Approximate relations are obtained in the form of inequalities allowing determination of the conditions for which the application of a one-dimensional flow model using the Reynolds analogy is not physically valid.
Publikováno v:
Journal of Engineering Physics. 22:640-643
On the basis of tests performed at the Grenoble University, the profiles of turbulent viscosity are calculated as functions of the negative pressure gradient.
Autor:
M. M. Nazarchuk, V. N. Panchenko
Publikováno v:
Journal of engineering physics. 16:579-584
From an analysis of the experimental data [1] we have found the relationship between surface friction and the Mach number.
Publikováno v:
Journal of Engineering Physics. 8:372-374
Autor:
M. M. Kovetskaya, M. M. Nazarchuk
Publikováno v:
Journal of Engineering Physics. 13:443-445
A method is given for solving the Prandtl equations for adiabatic gas flow in a plane-parallel channel at Pr=1. The method is based on reduction of the Prandtl equations to an approximate system of ordinary quasilinear, first-order differential equat
Publikováno v:
Soviet Atomic Energy. 32:172-174
Autor:
M. M. Nazarchuk, B. V. Panchenko
Publikováno v:
Journal of Applied Mechanics and Technical Physics. 7:66-67
It is shown that for sufficiently large negative pressure gradients the coefficient of friction should increase independently of whether the flow is “laminarized” or not.
Autor:
M. M. Nazarchuk
Publikováno v:
Journal of Engineering Physics. 10:173-174
It is shown that so-called developed laminar gas flow in a two-dimensional channel cannot continue beyond values of λ ≅ 0.74. At λ > > 0.74 the flow is accompanied by considerable deformation of the velocity profiles in the direction of greater f
Publikováno v:
Soviet Atomic Energy. 31:1278-1279