• KIRAN JOY IRIMPAN

      Articles written in Sadhana

    • Skin friction estimation on a surface under shock-boundary layer interaction

      MAITRI KSHETRIMAYUM KIRAN JOY IRIMPAN VIREN MENEZES

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      This article presents correlations for indirect measurement of skin friction inside a laminar separation bubble induced by hypersonic shock-boundary layer interaction (SBLI) on a flat plate. The correlations, based on parameters that are known to influence the SBLI region, were developed using exhaustive numericaland analytical studies. Experiments were conducted in a hypersonic shock tunnel at Mach 8.6 (±0.22) to measure surface heat-flux and pressure in the zone of SBLI on a flat plate, which were then used to supplement and validate the correlations. The data predicted by the correlations agreed reasonably well with that of exact solutions. The case studies contained non-reacting air, behaving as a perfect gas on a flat surface.

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