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Tuesday, October 6, 2020 | History

5 edition of Gas Dynamic Theory of Detonation (Combustion science and technology, v. 1) found in the catalog.

Gas Dynamic Theory of Detonation (Combustion science and technology, v. 1)

by H.D. Gruschka

  • 39 Want to read
  • 30 Currently reading

Published by Gordon & Breach Science Publishers Ltd .
Written in English

    Subjects:
  • Astronomy, Space & Time,
  • Astrophysics,
  • Gas dynamics

  • The Physical Object
    FormatHardcover
    Number of Pages212
    ID Numbers
    Open LibraryOL7695332M
    ISBN 100677033702
    ISBN 109780677033709

    A highly sophisticated and powerful tool for simulating the dynamic behaviour of gas transportation and distribution networks has been developed. Approximately twenty man-year work of the Institute of Information Theory and Automation of the Czechoslovak Academy of Sciences was supported by the General Directory of Czech Gas Industry. books such as Hirschfelder, Curtiss, and Bird (10) and Courant and Fried- ricks (6) and therefore will not be re- peated herein. Experimental work on detonation has been well reviewed by Lewis and von Elbe (16), and only the immediately pertinent work will be mentioned. The effect of composition on the detonation.

      high-pressure gas. The explosion products initially expand at very high velocities in an attempt to reach equilibrium with the surrounding air, causing a shock wave. A shock wave consists of highly compressed air, traveling radially outward from the source at supersonic velocities. Only one-third of the chemical energy. CHAPTER 5. DETONATION A. Introduction 1. Premixed and diffusion ames fl 2. Explosion, deflagration, and detonation 3. The onset of detonation B. Detonation phenomena C. Hugoniot relations and the hydrodynamic theory of detonations 1.

    theory, Existence of detonation in Majda™s model, Premixed laminar ⁄ame, Multidimensional gas ⁄ows, Multidimensional Riemann problem. 1 Introduction Examine a gas initially at rest, with constant density and pressure ˆ 0;p bounded on the left by a plane piston, and assume that the gas is . inside the hot spot, where the detonation profile formation occurs [7]. We call this region as “region of coherence between gas dynamic and chemical processes” or, shorter, “coherence region”.


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Gas Dynamic Theory of Detonation (Combustion science and technology, v. 1) by H.D. Gruschka Download PDF EPUB FB2

This is an advanced/specialized book geared toward taking an advanced student (physicist/chemist/engineer) who already has a working knowledge of compressible flows to doing research in detonation.

There is a heavy emphasis on practical interpretation in this book, the authors don't get bogged down with too much analytic analysis that often obsfuscates basic by: COVID Resources.

Reliable information about the coronavirus (COVID) is available from the World Health Organization (current situation, international travel).Numerous and frequently-updated resource results are available from this ’s WebJunction has pulled together information and resources to assist library staff as they consider how to handle coronavirus.

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 by: A hydrodynamic theory for the interaction of a gaseous detonation with a compressible boundary.DOI: /Cited by:   The initiation of a flame or detonation has a threshold character, where the minimum energy ensuring % initiation is a fundamental dynamic parameter called the critical energy.

While a weak initiation is commonly used for a flame ignition, direct initiation of an unconfined detonation requires a strong ignition by: One of James Clerk Maxwell's () most important papers outlining his theory of a new derivation of the distribution law of gas velocities tied directly to molecular collisions.

It corrected and extended his paper and greatly strengthened the theory that gases (and, by extension, all forms of matter) are composed of molecules.

Once the detonation velocity is known, the mean flow of the following gas can be completely determined without any consideration of the front. The computed flow is in remarkable agreement with measurements of velocity, pressure, OH concentration, and temperature [9], [10] if the effects of friction and heat transfer are included [11].

On the Dynamical Theory of Gases. Maxwell, J Philosophical Transactions of the Royal Society of London (). – Because the detonation and explosion states start off on different isentropes, the expansion of each never reaches the same conditions of pressure and volume.

About this book Addresses fundamentals and advanced topics relevant to the behavior of materials under in-service conditions such as impact, shock, stress and high-strain rate deformations.

Deals extensively with materials from a microstructure perspective which is. temperature in a single gas, it affords a mechanical explanation of the known chemical relation between the density of a gas and its equivalent weight, commonly called the Law of Equivalent Volumes.

It also explains the diffusion of one gas through another, the internal friction of a gas. Initiation of Gaseous Detonation J H S Lee Annual Review of Physical Chemistry The Dynamics of Detonation in Explosive Systems John B.

Bdzil and D. Scott Stewart Annual Review of Fluid Mechanics High Explosive Detonation–Confiner Interactions Mark Short and James J. Quirk. Considering that the simulations for gas explosion and dynamic response of building structure require different numerical methods and grid parameters, these two processes are simulated separately.

Therefore, the method for obtaining the launch distance and the kinetic energy of the fragment is divided into three steps. A mathematical model for three dimensional detonation as pure gas-dynamic discontinuity the Detonation Shock Dynamic (DSD) theory in which the conditions of the so called sonic locus are derived under the assumption of weak curvature but including multi-dimensionality effects.

Vasiljev A.A. () The limits of stationary propagation of gaseous detonation, in Borisov A. (eds), Dynamic structure of detonation in gaseous and dispersed media, v.5 of “Fluid Mechanics and its applications”, Kluwer Academic Publishers, Dordrecht-Boston.

LECTURENOTESON FUNDAMENTALSOFCOMBUSTION Joseph M. Powers Department of Aerospace and Mechanical Engineering University of Notre Dame. Theory for multidimensional, time-dependent detonation dynamics is reviewed with a focus on freely propagating detonation and the asymptotic theory for quasi-one-dimensional, quasi-steady.

gas in density MFP size [cm-3] [cm] [cm] _____ typical room 10 - 4 10 3 HI region (ISM) 10 10 14 10 Fluid Dynamics: Basic Concepts - frequent collisions, small mean free path compared to the characteristic length scales of the system → coherent motion of particles.

Detonation (from Latin detonare 'to thunder down/forth') is a type of combustion involving a supersonic exothermic front accelerating through a medium that eventually drives a shock front propagating directly in front of it.

Detonations occur in both conventional solid and liquid explosives, as well as in reactive gases. The velocity of detonation in solid and liquid explosives is much higher. Features of ignition of gas behind a shock wave The induction period Determination of kinetic reaction parameters Formation of detonation front 5.

Transition from combustion to detonation in gases Gas dynamic scheme of formation of detonation in a tube. These are a set of class notes for a gas dynamics/viscous flow course taught to juniors in Aerospace Engineering at the University of Notre Dame during the mid s.

The course builds upon foundations laid in an earlier course where the emphasis was on subsonic ideal flows.ignition & detonation, Theory of detonation, Effect of engine variables on detonation, Control of detonation. Requirement of good combustion chambers for SI engines. Stages of CI engine combustion.

Effect of engine variables on delay periods. Diesel Knock & methods of control in CI engine combustion chambers.(10) Module - III 4.Propagation of Gas Explosion in Channels with Uneven Walls and in Porous Media.- Physical Model of Dynamic Structure of the Surface of Detonation Wave.- Theoretical Description of Direct Initiation of Detonation for One-Step Chemistry.- Group Methods for the Study of Detonation Wave Analysis.- Transition and Structure of Dust Detonations