A generalized similarity method with a universal equation in differential form in the theory of a nonstationary boundary layer

1978 ◽  
Vol 34 (2) ◽  
pp. 188-192
Author(s):  
O. N. Bushmarin ◽  
V. M. Stoletov
Keyword(s):  
Boundary Layer ◽  
Differential Form ◽  
Universal Equation ◽  
Nonstationary Boundary ◽  
Similarity Method

Differential form of the universal equation of the laminar boundary layer

1976 ◽  
Vol 31 (6) ◽  
pp. 1443-1447
Author(s):  
N. G. Khislavskaya
Keyword(s):  
Boundary Layer ◽  
Laminar Boundary Layer ◽  
Differential Form ◽  
Universal Equation

Nonstationary Boundary Layer of a Fluid with the Ladyzhenskaya Rheological Law

2020 ◽  
Vol 249 (6) ◽  
pp. 850-863
Author(s):  
R. R. Bulatova ◽  
V. N. Samokhin ◽  
G. A. Chechkin
Keyword(s):  
Boundary Layer ◽  
Nonstationary Boundary

scholarly journals Generalized similarity method in unsteady two-dimensional MHD boundary layer on the body which temperature varies with time

2010 ◽  
Vol 1 (1) ◽  
Author(s):  
D Nikodijevic ◽  
Z Boricic ◽  
D Milenkovic ◽  
Z Stamenkovic
Keyword(s):  
Boundary Layer ◽  
The Body ◽  
Two Dimensional ◽  
Mhd Boundary Layer ◽  
Similarity Method

Use of the generalized similarity method for calculating the inner zone of a turbulent boundary layer

1991 ◽  
Vol 25 (5) ◽  
pp. 669-677
Author(s):  
L. G. Loitsyanskii
Keyword(s):  
Boundary Layer ◽  
Turbulent Boundary Layer ◽  
Similarity Method

Influence of blowing on the characteristics of the nonstationary boundary layer on an oscillating wedge in a supersonic stream

1981 ◽  
Vol 16 (1) ◽  
pp. 139-142 ◽  
Author(s):  
E. S. Kornienko ◽  
V. N. Shmanenkov
Keyword(s):  
Boundary Layer ◽  
Supersonic Stream ◽  
Nonstationary Boundary

Supersonic laminar boundary layer near the plane of symmetry of a cone at incidence

1972 ◽  
Vol 51 (1) ◽  
pp. 1-14 ◽  
Author(s):  
Bernard Roux
Keyword(s):  
Boundary Layer ◽  
Mach Number ◽  
Laminar Boundary Layer ◽  
External Flow ◽  
Leeward Side ◽  
Detailed Consideration ◽  
Boundary Layer Equations ◽  
Similarity Method ◽  
Supersonic Laminar ◽  
Critical Incidence

Supersonic laminar boundary-layer equations near the plane of symmetry of a cone at incidence are treated by the similarity method. Numerical integration of differential equations governing such a flow is performed, taking into consideration the temperature dependence of the Prandtl numberPrand viscosity μ throughout the boundary layer. On the leeward side, a detailed consideration of the solutions shows the existence of two solutions up to a critical incidence beyond which it appears that no solution may be found. Calculations carried out for a set of values of the external flow Mach number show up a significant effect of this parameter on the behaviour of the boundary layer.

scholarly journals On the ionized gas boundary layer adjacent to the bodies of revolution in the case of variable electroconductivity

2013 ◽  
Vol 17 (2) ◽  
pp. 555-566
Author(s):  
Branko Obrovic ◽  
Slobodan Savic ◽  
Vanja Sustersic
Keyword(s):  
Boundary Layer ◽  
The Body ◽  
Gas Flows ◽  
Generalized Equations ◽  
Ionized Gas ◽  
Bodies Of Revolution ◽  
Concrete Form ◽  
General Similarity ◽  
Transformation Of Variables ◽  
Similarity Method

This paper studies the ionized gas i.e. air flow in an axisymmetrical boundary layer adjacent to the bodies of revolution. The contour of the body within the fluid is nonporous. The ionized gas flows under the conditions of equilibrium ionization. A concrete form of the electroconductivity variation law has been assumed and studied here. Through transformation of variables and introduction of sets of parameters, V. N. Saljnikov's version of the general similarity method has been successfully applied. Generalized equations of axisymmetrical ionized gas boundary layer have been obtained and then numerically solved in a three-parametric localized approximation.

Nonstationary Boundary Layer

2018 ◽  
pp. 153-264
Author(s):  
O. A. Oleinik ◽  
V. N. Samokhin
Keyword(s):  
Boundary Layer ◽  
Nonstationary Boundary

Compressible Boundary-Layer Swirling Flow in a Nozzle and a Diffuser With Highly Cooled Wall

1979 ◽  
Vol 46 (2) ◽  
pp. 275-280 ◽  
Author(s):  
M. Kumari ◽  
G. Nath
Keyword(s):  
Boundary Layer ◽  
Mass Transfer ◽  
Swirling Flow ◽  
Local Similarity ◽  
Compressible Boundary Layer ◽  
Implicit Finite Difference Scheme ◽  
Infinite Region ◽  
Implicit Finite Difference ◽  
Similarity Method ◽  
Good Agreement

The steady laminar compressible boundary-layer swirling flow with variable gas properties and mass transfer through a conical nozzle, and a diffuser with a highly cooled wall has been studied. The partial differential equations governing the nonsimilar flow have been transformed to a system of coordinates using modified Lees transformation. The resulting equations are transformed into coordinates having finite ranges by means of a transformation which maps an infinite region into a finite region. The ensuing equations are then solved numerically using an implicit finite-difference scheme. The results indicate that the variation of the density-viscosity product across the boundary layer and mass transfer have strong effect on the skin friction and heat transfer. Separationless flow along the entire length of the diffuser can be obtained by applying suction. The results are found to be in good agreement with those of the local nonsimilarity method but they differ appreciably from those of the local similarity method.

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