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Investigation of Leading Edge Bluntness Effects on the Performance of Two-dimensional Supersonic Inlet
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Chenkai ZHANG1, Yufen WEN2, Shuai WANG1
Missiles and Space Vehicles | 2025, 48(4) : 81 - 89
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Missiles and Space Vehicles | 2025, 48(4): 81-89
• Launch Vehicle and Missile •
Investigation of Leading Edge Bluntness Effects on the Performance of Two-dimensional Supersonic Inlet
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Chenkai ZHANG1, Yufen WEN2, Shuai WANG1
Affiliations
  • 1. China Academy of Aerospace Aerodynamics, Beijing, 100074
  • 2. China Academy of Launch Vehicle Technology, Beijing, 100076
Published: 2025-08-25 doi: 10.7654/j.issn.2097-1974.20250411
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Numerical investigation on the characteristics of a two-dimensional, mixed-compression inlet with various leading edge bluntness is presented. Effects of leading edge bluntness on the self-starting ability, aerodynamic performance of the inlet at design and off design operations are acquired. Results indicate that, with the increase of blunted radius, the self-starting ability and mass flow capture of the inlet are deteriorated, the backpressure tolerance capability and critical total pressure recovery coefficient goes down, while the drag coefficient rises obviously. 5% decrease of mass flow ratio is observed while the backpressure tolerance and critical total pressure recovery coefficient drop off at least 8.5% for the design operating point. Complex shock wave interference pattern forms due to the oblique shock waves from the external compression of the inlet intersecting the bow shock wave produced in front of the leading edge with the variation of freestream Mach number and the angle of attack. Diminution of flow separation in the inner side of the inlet lip is observed with the increase of blunted radius at a high Mach number condition. As the angle of attack rises, the influence of the bow shock wave induced by the blunted leading edge on the performance of the inlet is found to be weaken.

two-dimensional supersonic inlet  /  blunted leading edge  /  total pressure recovery coefficient  /  self-starting  /  drag coefficient
Chenkai ZHANG, Yufen WEN, Shuai WANG. Investigation of Leading Edge Bluntness Effects on the Performance of Two-dimensional Supersonic Inlet[J]. Missiles and Space Vehicles, 2025 , 48 (4) : 81 -89 . DOI: 10.7654/j.issn.2097-1974.20250411
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Article Info
doi: 10.7654/j.issn.2097-1974.20250411
  • Receive Date：2024-11-23
  • Online Date：2025-10-27
  • Published：2025-08-25
Article Data
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History
  • Received：2024-11-23
  • Revised：2025-04-12
Affiliations
    1. China Academy of Aerospace Aerodynamics, Beijing, 100074
    2. China Academy of Launch Vehicle Technology, Beijing, 100076
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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