Structure of chemically nonequilibrium flows with a sudden change in the temperature and the catalytic properties of the surface

Bogolepov, V. V.; Lipatov, I. I.; Sokolov, L. A.

doi:10.1007/bf00864565

Cited by 5 publications

(5 citation statements)

References 10 publications

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“…In these equations Pr is Prandtl number, Sh = τ −1 ε 1/2 , Struhal number. The boundary conditions are formulated on the basis of no slip conditions and matching the solutions with these in other regions [2]. For the pressure the interaction condition holds having the following form for the subsonic case [3]…”

Section: Scales Evaluation and Problem Statement For The Viscous Sublmentioning

confidence: 99%

“…In previous works the problem of temperature and catalicity jumps has been systematically investigated [1,2]. In this case we assume that the temperature disturbances appear in a region with finite length to be estimated.…”

Section: Scales Evaluation and Problem Statement For The Viscous Subl...mentioning

confidence: 99%

“…In this case we assume that the temperature disturbances appear in a region with finite length to be estimated. It was shown in [1,2] that in the problem with the temperature jump ∆T ∼ T ∼ O(1) and the disturbances propagate on the distance ∆x ∼ ǫ 3/4 . Therefore we assume that the order of the length of the heating region is the same as that of the region of disturbances propagation i.e., a ∼ ǫ 3/4 where a is the length of heated region.…”

Section: Scales Evaluation and Problem Statement For The Viscous Subl...mentioning

confidence: 99%

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Steady subsonic boundary layer in domains of local surface heating

Koroteyev

Lipatov

2013

Journal of Applied Mathematics and Mechanics

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Section: Scales Evaluation and Problem Statement For The Viscous Sublmentioning

confidence: 99%

Section: Scales Evaluation and Problem Statement For The Viscous Subl...mentioning

confidence: 99%

Section: Scales Evaluation and Problem Statement For The Viscous Subl...mentioning

confidence: 99%

See 1 more Smart Citation

Steady subsonic boundary layer in domains of local surface heating

Koroteyev

Lipatov

2013

Journal of Applied Mathematics and Mechanics

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“…The difference consists in the fact that the effective shape of the roughness is not given in advance but is formed as a result of energy release in the boundary layer and the formation of a modified-density zone. Boundary layer flows with a sudden (jumpwise) change in the surface temperature and catalytic properties were analyzed in [2][3][4].…”

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confidence: 99%

Disturbed boundary layer flow with local time-dependent surface heating

Lipatov¹

2006

Fluid Dyn

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Local flows in a laminar boundary layer flowing over surface heating elements are investigated. Mathematical models of disturbed flows are constructed on the basis of an asymptotic analysis and the similarity parameters are determined. The time-dependent local heating regimes ensuring control of separation and flow stability in the boundary layer are studied. The results of a numerical and analytic analysis are obtained.

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“…The local viscous-inviscid interaction caused by a wall temperature jump on a flat plate in compressible flow was studied in [1,2]. This problem has many features in common with the analogous problem related to jumps of the surface catalycity [2]. The general description of these studies is given in [3].…”

Section: Introductionmentioning

confidence: 99%

Investigations of laminar-turbulent transition on a sharp cone with localized heating or cooling in high-speed flow

Федоров¹,

Soudakov²,

Егоров³

2013

51st AIAA Aerospace Sciences Meeting Including the New Horizons Forum and Aerospace Exposition

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A localized heating or cooling effect on stability and transition of the boundary layer flow on a sharp cone at zero angle of attack at the free-stream Mach number 6 is analyzed using the linear stability theory. Three different locations of the heating/cooling strip are considered. The steady-state laminar flow solution is calculated using the axisymmetric Navier-Stokes equations to provide the mean flow field. The spatial stability analysis is performed for two-dimensional disturbances associated with the Mack first and second modes. The transition onset points are estimated using the e N method. In this framework, the heating/cooling effect on the transition onset is inconclusive. The heater (or cooler) may cause earlier or later transition depending on the choice of critical N-factor. Direct numerical simulations and experiments are needed to clarify this situation. Nomenclature M = Mach number Re = Reynolds number p = pressure T = temperature , u v = longitudinal and vertical velocity components Superscripts * = dimensional Subscripts ∞ = free stream w = wall surface e = upper edge of the boundary layer

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Structure of chemically nonequilibrium flows with a sudden change in the temperature and the catalytic properties of the surface

Cited by 5 publications

References 10 publications

Steady subsonic boundary layer in domains of local surface heating

Steady subsonic boundary layer in domains of local surface heating

Disturbed boundary layer flow with local time-dependent surface heating

Investigations of laminar-turbulent transition on a sharp cone with localized heating or cooling in high-speed flow

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