A tidal bore is a positive surge propagating upstream as the tidal flow turns to rising in river mouths exhibiting a converging funnelled channel forms during low freshwater conditions. While some recent laboratory experiments brought new insights to the turbulent motion generated by tidal bores, a numerical model based upon the Navier-Stokes equations is proposed to investigate the complicated...

We present a comprehensive analytical and numerical study of shear-dominated flows Oldroyd-B fluids. Starting from transient ideal Couette flow, we show that less work is required to increase the shear rate than decrease it. Generalizing this observation non-homogeneous steady flows, reduced flow resistance around streamlines with increasing increased decreasing rate. demonstrate effect in smoo...

Abstract Jet-Electrochemical machining (Jet-ECM) is a novel variation of traditional electrochemical in which electrically conductive material removed through anodic dissolution by means fine jet electrolyte. In this study, the effect nozzle geometry on removal characteristics are investigated physical experiments performed Jet-ECM system under development at university Manchester. A total 8 no...

Suppose that an equilibrium is asymptotically stable when external inputs vanish. Then, every bounded trajectory which corresponds to a control which approaches zero and which lies in the domain of attraction of the unforced system, must also converge to the equilibrium. This “well-known” but hard-to-cite fact is proved and slightly generalized here.

The present work is concerned with the development of a new algorithm for determination of the equilibrium composition of gaseous detonations. The elements balance equations, and the second law of thermodynamics (i.e., the minimization of the Gibbs free energy of products), are used to determine the equilibrium composition of the detonation products. To minimize the Gibbs free energy with tradi...