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Published in:
2017 | OriginalPaper | Chapter
Effect of Differential Sweep on a Three-Dimensional Sidewall-Type Intake at Mach 3.5
Authors : C. Manisankar, S. B. Verma
Published in: 30th International Symposium on Shock Waves 1
Publisher: Springer International Publishing
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Abstract
An experimental study was carried out to understand the effect of the leading edge sweep for a three-dimensional sidewall-type compression intake in a Mach 3.5 flow. In order to reduce the mass spillage, two different cowl plates were extended from the isolator (at 1.86 h and 0.42 h). The result shows minimum cowl length has better intake performance characteristics. The change in flow angle brought by 30° and 45° backward sweep (BS) in leading edge relative to the unsweep case showed a 4 % reduction in mass flow capture (MFC) ratio. Wherein by having forward sweep (FS) at 30° and 45°, the MFC increased by 14 % and 3 %. The variation in sweep angle itself shows improvement on pressure recovery for both forward and backward sweeps. For the various sweep combinations tested, the differential sweep configuration 45°B-30°F seems to be optimal in terms of pressure recovery (10 % relative to no-sweep case) and improved MFC of 8.3 %.