Subsonic aerodynamics (Q2739721)

The model of perfect incompressible fluid allows to obtain, in some cases, an acceptable approximation to more exact results in subsonic aerodynamics. The present book is devoted to perfect incompressible fluid flows of low speed about complicated configurations such as airfoils, propellers, helicopter blades and other axial bodies. The main aim is to determine aerodynamic characteristics of these configurations. The author presents the thin profile theory, and the theory of lifting in two and three dimensions. A large part of the book is devoted to detailed exposition of the panel method for airfoil design. More than ninety excercises are included in the book, mostly with the laconic answers, but sometimes with detailed instructions. The book also contains a FORTRAN program for the computation of flow about airfoil by panel method. Thus, this book can be seen as a solid and reliable tool for modern aerospace scientists and engineers. It can also be used as a text and reference book for graduate courses on low-speed aerodynamics. NEWLINENEWLINENEWLINEFrom the contents: Theoretical and applied methods in aerodynamics. General equations of fluid motion. Particular flows. Non-dimensional parameters and similarity. Fundamental variables in aerodynamics. Irrotational flows of perfect fluid. Axially symmetric spatial flows. Potential flow about bodies. Airfoils in subsonic regime. Lifting. Kutta-Joukowski theorem. Thin wing sections. Numerical methods for computation of flows about airfoils. Panel methods for airfoil design. Wing of finite span. Turbulent flows. Propellers. Helicopter aerodynamics. Helicopter rotor. Experimental aerodynamics. Answers to exercises. Supplementary exercises. Index. Appendices: Algebra and vector analysis. Basic equations in different coordinate systems. Complex numbers. Airfoils. Equivalence between dipoles and vortices. Physical values and units of measurement. Butterfly wings and power-transmission screws.