Download or read book Properties of Oblique Detonation Waves written by Wallace Chinitz and published by . This book was released on 1959 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Theoretical Investigations of the Properties of Oblique Detonation Waves written by Philip F. Gibber and published by . This book was released on 1962 with total page 113 pages. Available in PDF, EPUB and Kindle. Book excerpt: One method of solving the problem of burning or combustion at supersonic speed is by combusting in a stationary detonation wave. Stabilization of a detonation wave has been recently accomplished and is reproducible, but only in laboratory type apparatus. Using two-dimensional steady flow, perfect gas theory, this paper provides solutions for the changes in properties that may be expected across any oblique detonation wave. Equations are established and solved using the Control Data Corporation 1604 digital computer of the U.S. Naval Postgraduate School, Monterey, California, for different values of specific heat ratio, initial Mach number, a function of the flow deflection angle, and the amount of heat added in the detonation. The results appear in tabular form and for several specific values of Mach number and heat addition in graphical form. An example of use of the data is shown with reference to a ramjet engine operating with a stationary detonation wave for the combustion process.
Download or read book Theoretical Investigations of the Properties of Oblique Detonation Waves Appendices G H and i written by Philip F. Gibber and published by . This book was released on 1962 with total page 234 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Some Diagrams of the Flow Properties Behind Oblique Detonation Waves written by J. Weber and published by . This book was released on 1963 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book NASA Glenn Coefficients for Calculating Thermodynamic Properties of Individual Species written by Bonnie J. McBride and published by . This book was released on 2002 with total page 300 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Some Properties of Detonation Waves in Dense Stellar Material written by Adrian Marroquin and published by . This book was released on 1973 with total page 170 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Properties of Detonation Waves written by Jon Tegnér and published by . This book was released on 1992 with total page 13 pages. Available in PDF, EPUB and Kindle. Book excerpt: Abstract: "A detonation wave is a combined compression and combustion wave which travels with supersonic speed through a mixture of fuel and oxidizer. The numerical computation of detonation waves is complicated by two important features of the process. First, the solution has sharp gradients and second, the source term can be very large. Strange behavior of the numerical solutions has been reported, for instance waves traveling with the unphysical speed of one cell per time step. This thesis investigates the sensitivity of detonation waves to the diffusive and dissipative mechanisms present. An important dimensionless number in this context is Kr = [mu]K/Q[rho]1. Here [mu] is the viscosity, K is the rate of reaction, Q is the heat release available in the process and [rho]1 is the density in the unburnt state. It is shown that the density peak of the traveling wave depends on Kr and also, that if Kr is sufficiently large, there is no traveling wave solution. The analysis is performed on model problems which are successive simplifications of the full set of conservation laws for mass, momentum, energy and species. Since most numerical methods used for problems with sharp gradients involve extra dissipation (artificial viscosity) they can not uncritically be applied to the computation of detonation waves. The analysis shows that the extra dissipation will not only smear out the sharp gradients (as in ordinary shock wave problems) but also change the character of the solution, typically the speed of the detonation wave and the extreme values obtained. Some remedies are suggested. If extra dissipation is involved in the numerical method it may be necessary to modify the source term, both its size and its dependence on the temperature, in order to retain the correct character of the solution. Typically, if an artificial [mu] is used then the rate of reaction, K, should be modified so that Kr is kept constant."
Download or read book An Experimental Study of Oblique Detonation Waves written by Jean-Christophe Broda and published by . This book was released on 1993 with total page 272 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Dynamics of Detonations and Explosions written by and published by AIAA. This book was released on 1991 with total page 422 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book AFOSR written by United States. Air Force. Office of Scientific Research and published by . This book was released on 1959 with total page 718 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Oblique Detonation Waves written by Sandra Anderson Ashford and published by . This book was released on 1994 with total page 488 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Properties of Detonation Waves Without Heat Conduction written by Jon Tegnér and published by . This book was released on 1992 with total page 29 pages. Available in PDF, EPUB and Kindle. Book excerpt: Abstract: "The phenomena of unphysical wave propagation speeds sometimes occur in numerical computations of detonation waves on coarse grids. The strong detonation wave splits into two parts, a weak detonation which travels with the speed of one cell per time step and an ordinary shock wave. We analyze a simplified set of equations mathematically and look for traveling wave solutions. It is shown that the solution depends heavily on the dimensionless number Kr = [mu]K/QP1 where [mu] is the viscosity, K is the reaction rate, Q is the heat release available in the process, and P1 is the density at the unburnt state. The erroneous behavior above is explained as an effect of the increased artificial viscosity inherent in the numerical methods when coarse grids are used. To prevent the unphysical behavior we suggest the use of an 'artificial reaction rate' when artificial viscosity is inherent such that Kr retains its correct physical value."
Download or read book A Parametric Study of Oblique Detonation Waves written by Mark Archambault and published by . This book was released on 1993 with total page 134 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Detonation Phenomenon written by John H. S. Lee and published by Cambridge University Press. This book was released on 2008-06-30 with total page 400 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book introduces the detonation phenomenon in explosives. It is ideal for engineers and graduate students with a background in thermodynamics and fluid mechanics. The material is mostly qualitative, aiming to illustrate the physical aspects of the phenomenon. Classical idealized theories of detonation waves are presented first. These permit detonation speed, gas properties ahead and behind the detonation wave, and the distribution of fluid properties within the detonation wave itself to be determined. Subsequent chapters describe in detail the real unstable structure of a detonation wave. One-, two-, and three-dimensional computer simulations are presented along with experimental results using various experimental techniques. The important effects of confinement and boundary conditions and their influence on the propagation of a detonation are also discussed. The final chapters cover the various ways detonation waves can be formed and provide a review of the outstanding problems and future directions in detonation research.
Download or read book Scramjet Propulsion written by E. T. Curran and published by AIAA. This book was released on 2001 with total page 1354 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Interaction of Oblique Shock and Detonation Waves written by Y. Sheng and published by . This book was released on 1982 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Morphology of a Standing Oblique Detonation Wave written by David T. Pratt and published by . This book was released on 1987 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt:
