Studies In The Fluid Dynamics Of Radiating Blast Waves And Stagnation Counterflows

Includes entries for maps and atlases.

As an editor of the international scienti?c journal Shock Waves, I was asked whether I might document some of my experience and knowledge in the ?eld of blast waves. I began an outline for a book on the basis of a short course that I had been teaching for several years. I added to the outline, ?lling in details and including recent devel- ments, especially in the subjects of height of burst curves and nonideal explosives. At a recent meeting of the International Symposium on the Interaction of Shock Waves, I was asked to write the book I had said I was working on. As a senior advisor to a group working on computational ?uid dynamics, I found that I was repeating many useful rules and conservation laws as new people came into the group. The transfer of knowledge was hit and miss as questions arose during the normal work day. Although I had developed a short course on blast waves, it was not practical to teach the full course every time a new member was added to the group. This was suf?cient incentive for me to undertake the writing of this book. I cut my work schedule to part time for two years while writing the book. This allowed me to remain heavily involved in ongoing and leading edge work in hydrodynamics while documenting this somewhat historical perspective on blast waves.

Presents the fundamentals of gas dynamics for graduate students and researchers in the subject.

PRELIMINARY TEXT: The book includes results of experimental studies and mathematical models of wide class of nonstationary processes developing in liquid under pulse (explosive) loading. The author addresses engineers and scientists from scientific computation. Experimental results on structure and parameters of wave fields generated by explosions of cord and spiral charges, description of formation mechanisms of high speed cumulative flows at underwater explosions near free surface as well as studies on dynamics of spherical, cylindrical and ring cavities are presented. The features of shock wave transformation in bubbly liquids, their amplification as a result of collision and focusing, bubbly detonation wave formation in reactive bubbly liquids are in detail analyzed. The results of studies of real liquid microstructure as two-phase medium, bubbly cavitation development, rarefaction waves in real liquids, notion of their strength, relaxation of tensile stresses and process of liquid fructure under pulse (explosive) loading are discussed in detail.

The theory of waves is generalized on cases when waves change medium in which they appear and propagate. A reaction of structural elements and space objects to the dynamic actions of the different nature, durations, and intensities is studied. It considers the effects of transitions in the state and phase equations of media on the formation and propagation of extreme waves as a result of power, thermal, or laser pulsed action. The influence of cavitation and cool boiling of liquids, geometric and physical nonlinearity of walls on containers’ strength, and the formation of extreme waves is studied. The theory can be also used to optimize impulse technology, in particular, in the optimization of explosive processing of sheet metal by explosion in a liquid. This book was written for researchers and engineers, as well as graduate students in the fields of thermal fluids, aerospace, nuclear engineering, and nonlinear waves.

This book offers a timely reference on shock waves in multiphase flows, including new viewpoints and burgeoning developments. This volume treats shock and expansion waves in complex, bubbly liquids and cryogenic liquids. It also examines the relationship of shock waves with phase transitions and induced phase transitions as well as their interaction with solid foams, textiles, porous and granular media.