Ablation surface cross-hatching on cones in hypersonic flow

Inger, G. R.; Williams, E. P.

doi:10.2514/3.6471

AIAA Journal

1971

DOI: 10.2514/3.6471

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Ablation surface cross-hatching on cones in hypersonic flow

G. R. Inger

E. P. Williams

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1972

1981

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Cited by 8 publications

References 7 publications

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Injection from a finite section of a flat plate placed parallel to a uniform stream

Smith

Dennis

1981

J Eng Math

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A study is made of the effects on the fluid motion past a semi-infinite flat plate of introducing a uniform injection of extra fluid from a finite porous section of the plate. Steady laminar flow is considered with a uniform oncoming stream parallel to the plate in an incompressible fluid. A local analysis valid near the start and finish of the injection is found to produce unusually firm predictions for the singular behaviour of the solution of the Navier-Stokes equations there and in particular shows that separation ahead of the injection is inevitable for all positive Reynolds numbers R. Then a numerical treatment of these singular points, and of the Navier-Stokes equations and boundary conditions, is described and the results are presented for a range of values of R, The calculation method used is based on the accurate and efficient centred differencing technique suggested by Dennis I1] and developed recently by Dennis and Hudson [2]. Checks on the influences of mesh spacing, of the placing for the outer boundaries of the computational domain, and of the treatments of the singular points are given. The agreement found with the previous local analysis near the ends of the injection proves especially encouraging. In addition the results provide some guidance to the asymptotic structure of the flow at high Reynolds numbers and to the questions surrounding the occurrence of large-scale separations.

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Injection from a finite section of a flat plate placed parallel to a uniform stream

Smith

Dennis

1981

J Eng Math

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Heat transfer—A review of 1971 literature

Eckert

Sparrow

Goldstein

et al. 1972

International Journal of Heat and Mass Transfer

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On strong blowing into an incompressible airstream

Smith

1973

J. Fluid Mech.

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An experimental study of distributed air-injection from a porous section of a flat plate into a uniform incompressible airflow is described. The relative mass flow rates of the injection varied between 0·008 and 0·053 (strong injection) and the blowing was fairly uniformly distributed. In the resulting flow field, which was predominantly laminar except near the dividing streamline, where unsteadiness prevailed, velocity profile and pressure measurements were taken and the position of the dividing streamline thereby estimated. Overall the results agree fairly well with the steady laminar theory for strong normal blowing, outlined in §2, although for the strongest blow some signs of separation some way upstream of the blow are apparent.

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Ablation surface cross-hatching on cones in hypersonic flow

Cited by 8 publications

References 7 publications

Injection from a finite section of a flat plate placed parallel to a uniform stream

Injection from a finite section of a flat plate placed parallel to a uniform stream

Heat transfer—A review of 1971 literature

On strong blowing into an incompressible airstream

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