Hydrody Stability Theory: Part 1: Classical Fluid Dynamics

Anatoly I. Ruban · Jitesh S. B. Gajjar

May 2014 · OUP Oxford

About this eBook

This is the first book in a four-part series designed to give a comprehensive and coherent description of Fluid Dynamics, starting with chapters on classical theory suitable for an introductory undergraduate lecture course, and then progressing through more advanced material up to the level of modern research in the field. The present Part 1 consists of four chapters. Chapter 1 begins with a discussion of Continuum Hypothesis, which is followed by an introduction to macroscopic functions, the velocity vector, pressure, density, and enthalpy. We then analyse the forces acting inside a fluid, and deduce the Navier-Stokes equations for incompressible and compressible fluids in Cartesian and curvilinear coordinates. In Chapter 2 we study the properties of a number of flows that are presented by the so-called exact solutions of the Navier-Stokes equations, including the Couette flow between two parallel plates, Hagen-Poiseuille flow through a pipe, and Karman flow above an infinite rotating disk. Chapter 3 is devoted to the inviscid incompressible flow theory, with particular focus on two-dimensional potential flows. These can be described in terms of the "complex potential", allowing the full power of the theory of functions of complex variables to be used. We discuss in detail the method of conformal mapping, which is then used to study various flows of interest, including the flows past Joukovskii aerofoils. The final Chapter 4 is concerned with compressible flows of perfect gas, including supersonic flows. Particular attention is given to the theory of characteristics, which is used, for example, to analyse the Prandtl-Meyer flow over a body surface bend and a corner. Significant attention is also devoted to the shock waves. The chapter concludes with analysis of unsteady flows, including the theory of blast waves.

About the author

Anatoly Ruban: 1972: Received 1st class degree in Physics from Moscow Institute of Physics and Technology (MPhTI) 1977: PhD in Physics and Mathematics from Central Aerohydrodynamic Institute (TsAGI), Moscow 1991: Degree of Doctor of Science in Physics and Mathematics from Computing Centre of the Russian Academy of Sciences 1975 - 1995: Employed by TsAGI, starting as Junior Research Scientist and progressing to Head of Department of Gas Dynamics 1978 - 1995: Teaching at MPhPI, first as Associate Professor and then (1993 - 1995) as Professor in the Department of Theoretical Aerohydrodynamics 1995 - 2008: Chair in Computational Fluid Dynamics, University of Manchester, School of Mathematics 2008 - present: Chair in Applied Mathematics and Mathematical Physics, Imperial College London, Department of Mathematics Jitesh S.B. Gajjar: 1977: Received 1st Class Hons in Mathematics from Imperial College, London 1984: Received PhD from Mathematics Department, Imperial College, London 1983 - 1985: Research Scientist at British Maritime Technology, Teddington, UK 1985 - 1991: Lecturer in Mathematics Department at Exeter University 1991 - current: Mathematics Department, University of Manchester 2007 - current: Professor of Applied Mathematics, University of Manchester