TAN Jie, SUN Xiaofeng, LIU Fuqun, et al. Numerical simulation of aerodynamic heating environment of a hypersonic plate/rudder configuration[J]. 2019, 37(1): 153-159.
TAN Jie, SUN Xiaofeng, LIU Fuqun, et al. Numerical simulation of aerodynamic heating environment of a hypersonic plate/rudder configuration[J]. 2019, 37(1): 153-159.DOI: 10.7638/kqdlxxb-2018.0234.
Numerical simulation of aerodynamic heating environment of a hypersonic plate/rudder configuration
This article presents a numerical study to investigate aerodynamic heating environments of a hypersonic plate/rudder configuration. In particular
the effects of the deflection angle
δ
r
gap displacement
h
and boundary layer flow pattern on aerodynamic heating environment of the rudder shaft as well as its interaction region were analyzed in detail. The analysis show that the heating environment in the gap is negligible at 0° deflection angle due to the subsonic flow. However
the rudder deflection results in high speed and high pressure flow inside the gap
the thermal loads of the rudder shaft
and its interaction region almost linearly increase with increasing
δ
r
between 5° and 15°. The heating flux of the rudder shaft and its interaction region increase firstly and then decrease gradually with the increasing
h
. The heat flux of
h
=7 mm is nearly two times of that of
h
=5 mm. In addition
the flow pattern of the boundary layer exerts a significant influence on the heat flux in the gap. In full laminar case
the thermal loads of the rudder shaft and its interaction region are three to five times of those within the full turbulent case under the condition of
δ
r
=15°. This is because the thinner boundary layer of laminar flow results in high speed flow in the gap.
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references
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