Accession Number:

AD0258244

Title:

THE EFFECT OF HEAT TRANSFER ON THE SEPARATION OF LAMINAR FLOW OVER AXISYMMETRIC COMPRESSION SURFACES, PRELIMINARY RESULTS AT MACH NUMBER 6.78

Descriptive Note:

Corporate Author:

NAVAL ORDNANCE LAB WHITE OAK MD

Personal Author(s):

Report Date:

1961-05-01

Pagination or Media Count:

1.0

Abstract:

The strong effect of heat transfer on the laminar separation phenomena on hypersonic compression surfaces was clearly demonstrated. A transient model technique using a model with a moderately thick wall was used to obtain a relatively constant isothermal wall condition. When the model is made of a material of fairly high conductivity, simple heat transfer calculations can be used to roughly predict its performance. The erosion of the model surface is almost eliminated by this method. The trend of laminar separation was confirmed by more precise experiments. Laminar separation on axisymmetric compression surfaces was strongly affected by wall temperature or by the value of the ratio of wall to stagnation temperature. Author

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Distribution Statement:

APPROVED FOR PUBLIC RELEASE