文献详情
Hypersonic aerodynamic interference investigation for a two-stage-to-orbit model
文献类型:期刊
通讯作者:Fu, DB (reprint author), Beijing Inst Technol, Sch Aerosp Engn, Beijing 100081, Peoples R China.
期刊名称:ACTA ASTRONAUTICA影响因子和分区
年:2020
卷:168
页码:138-145
ISSN:0094-5765
关键词:Hypersonic flow; Aerodynamic; Shock-wave/boundary-layer interaction; Heat transfer; Computational fluid dynamics
摘要:To investigate the aerodynamic interference challenges for hypersonic vehicles, a new type of conceptual TSTO model is considered, which consists of a trapezoid wing as the booster and a hemisphere-cone-cylinder wing as the orbiter. Based on the three-dimensional hybrid LES/RANS numerical simulation method, the mechanism of high surface heat flux and the effect of stage separation between booster and aircraft in hypersonic flight are studied in detail. The results show that the oblique shock gen ...More
To investigate the aerodynamic interference challenges for hypersonic vehicles, a new type of conceptual TSTO model is considered, which consists of a trapezoid wing as the booster and a hemisphere-cone-cylinder wing as the orbiter. Based on the three-dimensional hybrid LES/RANS numerical simulation method, the mechanism of high surface heat flux and the effect of stage separation between booster and aircraft in hypersonic flight are studied in detail. The results show that the oblique shock generated by the booster impinges on the bow shock in a three-dimensional region around the orbiter nose. Obviously, this interaction brings about a steep temperature gradient and high peak values of pressure and heat flux. When the bow shock under the orbiter is incident to the upper surface of the booster, it will trigger a shock-wave/boundary-layer interaction, which gives rise to the peak pressure and heat flux. When the reflected bow shock impacts the lower surface of the orbiter, it will initiate another interaction. When the two stages separate from each other, the increase in the normal distance between two stages results in a decrease in pressure and heat flux. When the vertical distance is large enough, the reflected bow shock impinges on the rear of the orbiter without producing an interaction. At that moment, the pressure and heat flux maintain low values. ...Hide
DOI:10.1016/j.actaastro.2019.11.038
百度学术:Hypersonic aerodynamic interference investigation for a two-stage-to-orbit model
语言:外文
基金:National Natural Science Foundation of ChinaNational Natural Science Foundation of China [51306019]
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Hypersonic aerodynamic interference investigation for a two-stage-to-orbit model
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