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2014-05-23 01:50:19 UTC
http://www.sciencedirect.com/science/article/pii/004579309290032Q
Effect of heat transfer on the stability of compressible boundary layers
J.A. Masad1, ?, A.H. NayfehCorresponding author contact information, 1, A.A.
Al-Maaitah2
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http://dx.doi.org/10.1016/0045-7930(92)90032-Q
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Abstract
The effect of heat transfer on the spatial stability of compressible boundar
y layers is investigated using a formulation that accounts for variable-flui
d properties of both the mean-flow and stability problems as well as a const
ant Prandtl number formulation. It is found that heat transfer is more effec
tive in stabilizing or destabilizing flows at low Mach numbers than at high
Mach numbers. Cooling always stabilizes first-mode waves and destabilizes se
cond-mode waves. Cooling increases the peak amplifications of second-mode wa
ves and shifts them towards higher frequencies. The least stable second-mode
wave remains two-dimensional in the presence of heat transfer. The theoreti
cal results are in good agreement with the experimental data of Lysenko and
Maslov [J. Fluid Mech.147, 39 (1984)] for the first mode and in reasonable a
greement with their experimental data for the second mode. The theoretical r
esults are also compared with the experimental data of Lebiga et al.Archs Me
ch.31, 397 (1979)] and Kosinov et al. [J. Fluid Mech.219, 621 (1990)].
mailto: shookware#tju.edu.cn
--
[m[1;34m※ 来源:・水木社区 newsmth.net・[FROM: 202.113.11.*][m
Effect of heat transfer on the stability of compressible boundary layers
J.A. Masad1, ?, A.H. NayfehCorresponding author contact information, 1, A.A.
Al-Maaitah2
Choose an option to locate/access this article:
Show more
http://dx.doi.org/10.1016/0045-7930(92)90032-Q
Get rights and content
Abstract
The effect of heat transfer on the spatial stability of compressible boundar
y layers is investigated using a formulation that accounts for variable-flui
d properties of both the mean-flow and stability problems as well as a const
ant Prandtl number formulation. It is found that heat transfer is more effec
tive in stabilizing or destabilizing flows at low Mach numbers than at high
Mach numbers. Cooling always stabilizes first-mode waves and destabilizes se
cond-mode waves. Cooling increases the peak amplifications of second-mode wa
ves and shifts them towards higher frequencies. The least stable second-mode
wave remains two-dimensional in the presence of heat transfer. The theoreti
cal results are in good agreement with the experimental data of Lysenko and
Maslov [J. Fluid Mech.147, 39 (1984)] for the first mode and in reasonable a
greement with their experimental data for the second mode. The theoretical r
esults are also compared with the experimental data of Lebiga et al.Archs Me
ch.31, 397 (1979)] and Kosinov et al. [J. Fluid Mech.219, 621 (1990)].
mailto: shookware#tju.edu.cn
--
[m[1;34m※ 来源:・水木社区 newsmth.net・[FROM: 202.113.11.*][m