A similitude has been obtained for a planar wedge with attached bow shock at high incidence in supersonic flow. A strip theory in which flow at a span wise location is two dimensional developed by Ghosh is been used. This combines with the similitude to lead to a piston theory which gives closed form of solutions for unsteady derivatives in pitch. Substantially the same results as the theory of...

Effect of air cushion layer right before impact of a rigid body onto water surface has been investigated in this paper. The study is mainly focused on evaluation of cushioning pressure and the resulting free surface elevation. The air flow is assumed to be an irrotational flow which is governed by Laplace equation. The air problem and the resulting response of the water free surface are suppose...

In this paper an analysis is presented to understand the effect of non–Newtonian rheology, velocity slip at the boundary, thermal radiation, heat absorption/generation and first order chemical reaction on unsteady MHD mixed convective heat and mass transfer of Casson fluid past a wedge in the presence of a transverse magnetic field with variable electrical conductivity. The partial differential...

An experimental investigation is reported of the unsteady forces d ue to heaving motion of fully wetted hydrofoils of unity aspect ratio and also in two-dimensiona l flow. The tests covered a broad range of reduced frequency and determined the effects of variation in submergence depth, angle of attack, oscillation amplitude, and flow velocity. In genera l, the findings agree well with available...

The efficient heat transfer performance of hybrid nanofluid making the fluid crucial in many industrial applications like exchangers, nuclear reactors, automotive cooling systems, and most manufacturing processes. This study aims to uncover properties an unsteady Falkner-Skan flows over a nonlinear moving wedge with convective boundary condition. water-based that is considered this research com...

This study investigates the origin and sustenance of self induced oscillations shock structures in a hypersonic flow over double wedge configuration. Previously, various researchers have considered configuration for inviscid with variations different inflows as well geometric parameters such inflow Mach number , angles, lengths. Few recently published articles reveal an unsteady physics involve...

New analytic solutions for unsteady magnetohydrodynamic (MHD) flows of a generalized second-grade fluid have been derived. The generalized second-grade fluid saturates the porous space. Fractional derivative is used in the governing equation. The analytical expressions for velocity and shear stress fields have been obtained by using Laplace transform technique for the fractional calculus. The o...