Download or read book Minimization of the Total Heat Input for Manned Vehicles Entering the Earth's Atmosphere at Hyperbolic Speeds written by Alvin Seiff and published by . This book was released on 1966 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt: The use of conical entry bodies to control the radiative and minimize the total heat input to manned vehicles is investigated with an imposed acceleration limit on two types of hyperbolic shallow-angle entry into the Earth's atmosphere. The local Reynolds number is limited to retain laminar boundary later. The equations permit any desired values of the acceleration and local Reynolds number limits and of the body radius, body density, and heat-shield material properties. Numerical examples are given for a range of Reynolds number limits, three body radii, and two heat-shield materials.