Thermohydrodynamic theory of detonation

Hydrothermodynamic (or Thermohydrodynamic) Theory of Detonation. See further in this Section and in Refs 32, 39 (pp 87-8), 55a 93... 

Definition of deton, expln de-flgrn) 44-8 (Ideal deton) 48-50 (Nonideal deton) 50-7 (Transient and unstable deton waves) 57-60 (The jumping deton) 61-90 (Thermohydrodynamic theory of deton) 61-6 (Equation of state in deton of condensed expls) 66-8 (The Chapman-Jouguet postulate) 68-75 (The deton reaction zone in gases) 75-7 (Reaction zone in nonideal deton in gases) 77-9 (Reaction zone in condensed expls) 79-87... 

Thermohydrodynamic Theory of Detonation. See under Hydrodynamic and Hydrothermo-dynamic Theories of Detonation in Vol 4, D610-L to D619-L sulfuric acid with mixed acid (2 vols of 90—95% nitric acid to 1 vol of coned sulfuric acid) at 0-5° Refs 1) Beil 27,15, [9 207] 2) H.v. Bobo B. Prijs, Helv 33, 306-13 (1950) CA 44, 5872 (1950) 3) S. Vicon A. Taurius, CanJ-... 

TG = thermogravimetry 98 TG = Trotil-Gheksogen = TNT/RDX mixtures (russian) theorie hydrodynamique de la detonation = thermohydrodynamic theory of detonation 80 ff. thermic differential analysis 98 thermische Sensibilitat = heat sensitivity 165 thermites 315... 

If all detonations were "ideal , their mechanisms would be the same as described in hydrothermodynamic theory of detonation. This mechanism is described by Cook (1958) in Chapter 4 entitled Thermohydrodynamic Theory and Mechanism of Detonation , pp 61-90. He also described the mechanism of detonation in University of Utah Technical Report No XLl, Nov 15, 1954... 

The streak camera viewed the chge upward thru a periscope in which the line of sight was reflected to a horizontal direction by a front surface mirror. Measurements of the peak pressures by the aquarium technique were found to be the C-J or detonation pressures of the thermohydrodynamic theory... 

The velocity of ideal deton is completely determined by the thermohydrodynamics of the explosive, with.the independent variables being the original density p of the expl and its chem compn, all quantities being calculable, at least in principle, thru the thermohydrodynamic theory and an apppropriate equation of state. For each given ideal explosive, velocity. is a function only of the original density, i.e., D=D(p ), but three fundamentally different types of D(p ) relations have been found in ideal deton. The most common is the linear D(p ) relation characteristic of solid C-H-N-0 expls at densities... 

Schweikert s theory differs radically from the conventional thermohydrodynamic Chapman-Jouguet theory in that it provides for a continuous transition from burning to deton. In Section I entitled "Introduction , the author criticizes the validity of the C-J theory for condensed expls. In Section II the burning rate constants of a colloidal propint are related to fundamental parameters such.as specific surface vol of the powd, the most probable molecular vel, and the collision efficiency c. Schweikert arrives in Section III at the conclusion that burning deton differ primarily in the magnitude of c i.e. c l in a deton and is a much. smaller value in a burning process A surprisingly simple relation is derived in Section IV for the upper boundary of the deton vel Dm of a condensed expl ... 

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