A brand-new edition of the classic guide on low-speed wind tunnel testing While great advances in theoretical and computational methods have been made in recent years, low-speed wind tunnel testing remains essential for obtaining the full range of data needed to guide detailed design decisions for many practical engineering problems. This long-awaited Third Edition of William H. Rae, Jr.'s landmark reference brings together essential information on all aspects of low-speed wind tunnel design, analysis, testing, and instrumentation in one easy-to-use resource. Written by authors who are among the most respected wind tunnel engineers in the world, this edition has been updated to address current topics and applications, and includes coverage of digital electronics, new instrumentation, video and photographic methods, pressure-sensitive paint, and liquid crystal-based measurement methods. The book is organized for quick access to topics of interest, and examines basic test techniques and objectives of modeling and testing aircraft designs in low-speed wind tunnels, as well as applications to fluid motion analysis, automobiles, marine vessels, buildings, bridges, and other structures subject to wind loading. Supplemented with real-world examples throughout, Low-Speed Wind Tunnel Testing, Third Edition is an indispensable resource for aerospace engineering students and professionals, engineers and researchers in the automotive industries, wind tunnel designers, architects, and others who need to get the most from low-speed wind tunnel technology and experiments in their work.

The Encyclopedia of Aerodynamics was written for pilots at all levels from private pilot to airline pilot, military pilots and students of aerodynamics as a complete reference manual to aerodynamic terminology. General aerodynamic text books for pilots are relatively limited in their scope while aerodynamic text books for engineering students involve complex calculus. The references in this book, The Encyclopedia of Aerodynamics, are clearly described and only basic algebra is used in a few references but is completely devoid of any calculus - an advantage to many readers. Over 1400 references are included with alternative terms used where appropriate and cross-referenced throughout. The text is illustrated with 178 photographs and 96 diagrams. The Encyclopedia of Aerodynamics is an ideal aerodynamic reference manual for any pilot's bookshelf.

Summary: A technical method is given for calculating the axial interference velocity of a propeller. The method involves the use of certain weight functions P, Q, and F. Numerical values for the weight functions are given for two-blade, three-blade, and six-blade propellers.