Perturbation Methods for Engineers and Scientists examines the main techniques of perturbation expansions applied to both differential equations and integral expressions. It describes several fluid dynamics applications, including aerofoils, boundary layers in momentum heat, and mass transfer. In addition, it applies the multiple scale technique to the description of surface roughness effects in lubrication. The book's intuitive, rather than formal, approach enables these advanced techniques to be used by scientists and engineers as well as by students.

Introduction to Perturbation Expansions
Strained Co-ordinates
Multiple Scales
Boundary Layers
The Dominant Balance and WKB Methods
The Asymptotic Approximation of Integrals
References and Bibliography