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Rahuljeet Singh Bali

Bio: Rahuljeet Singh Bali is an academic researcher. The author has contributed to research in topics: Shock (mechanics). The author has co-authored 1 publications.

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Journal Article
TL;DR: In this paper, the influence of tab heads on the shock train of Underexpanded jet issuing through a convergent nozzle was investigated. Tabs were attached diametrically opposite.
Abstract: This paper presents the influence of tabs on shock trains of Underexpanded jet issuing through a convergent nozzle. The shadowgraph of flow is captured to have an insight of shock structure prevailed in Underexpanded jet. Tabs were attached diametrically opposite. Tabs used in the study were elliptical and perforated elliptical. The blockage ratio was 5%. Shadowgraph pictures were captured for tabs along and normal to the flow for nozzle pressure ratios (NPRs) of 3, 4, 5, 6 and 7. It was observed that elliptical tabs, highly distorts the shock train compared to perforated elliptical tabs. However perforated elliptical tabs are more influential to reduce noise level as well as compensation for thrust loss.