scholarly journals Determination of a statistical similarity criterion for solid-propellant engine tryout conditions

2019 ◽  
Vol 2019 (3) ◽  
pp. 30-37
Author(s):  
L.V. Krivobokov ◽  
◽  
D.V. Dunaiev ◽  
A.V. Demchenko ◽  
◽  
...  
Keyword(s):  
Solid Propellant ◽  
Similarity Criterion ◽  
Statistical Similarity

Bulk modulus determination of solid propellant void content

1985 ◽  
Vol 22 (2) ◽  
pp. 156-161 ◽  
Author(s):  
S. W. Beckwith ◽  
H. B. Carroll
Keyword(s):  
Bulk Modulus ◽  
Solid Propellant ◽  
Void Content

Determination of the Dynamic Shear Modulus of a Composite Solid Propellant

1963 ◽  
Vol 34 (12) ◽  
pp. 1333-1340 ◽  
Author(s):  
Lionel H. Layton ◽  
G. A. Sheppard ◽  
S. John Bennett
Keyword(s):  
Shear Modulus ◽  
Solid Propellant ◽  
Dynamic Shear Modulus ◽  
Dynamic Shear ◽  
Composite Solid Propellant ◽  
Composite Solid

Burning Rate of Solid Propellant Ingredients, Part 2: Determination of Burning Rate Temperature Sensitivity

1999 ◽  
Vol 15 (6) ◽  
pp. 748-752 ◽  
Author(s):  
A. I. Atwood ◽  
T. L. Boggs ◽  
P. O. Curran ◽  
T. P. Parr ◽  
D. M. Hanson-Parr ◽  
...  
Keyword(s):  
Burning Rate ◽  
Temperature Sensitivity ◽  
Solid Propellant

Determination of Pressure Profiles Behind Projectiles During Interior Ballistic Cycle

2013 ◽  
Vol 80 (3) ◽  
Author(s):  
Dejan Micković ◽  
Slobodan Jaramaz ◽  
Predrag Elek ◽  
Dragana Jaramaz ◽  
Dušan Micković
Keyword(s):  
Analytical Methods ◽  
Solid Propellant ◽  
Weapon System ◽  
Two Phase ◽  
Interior Ballistics ◽  
Pressure Profiles ◽  
Lumped Parameter ◽  
Lumped Parameter Models ◽  
Phase Mixture

The determination of pressure profiles behind a projectile has been a subject of investigations for more than 70 years. For lumped parameter models it was especially important to determine the pressure on the projectile base, pressure on the chamber base, and pressure for the propellant burning law. In the paper two analytical methods and one numerical method are considered. The analytical methods of proportionate expansion and two-phase mixture are studied. Pressure profiles are also computed numerically by TWO Phase Interior Ballistics (TWOPIB) code, which is based on the model of two-phase flow of solid propellant and its products of combustion, treated as separate phases with appropriate conservation laws and interactions between phases. Through comparison with experimental results on the real weapon system TWOPIB code showed great advantages over analytical methods.

scholarly journals Similarity of Ferrosilicon Submerged Arc Furnaces With Different Geometrical Parameters

2017 ◽  
Vol 62 (4) ◽  
pp. 2343-2347
Author(s):  
B. Machulec ◽  
S. Gil ◽  
W. Bialik
Keyword(s):  
Comparative Analysis ◽  
Similarity Criterion ◽  
Geometrical Parameters ◽  
Physical Similarity ◽  
Arc Furnaces ◽  
Higher Power ◽  
Reaction Zones ◽  
Production Output ◽  
Submerged Arc

Abstract In order to determine reasons of unsatisfactory production output regarding one of the 12 MVA furnaces, a comparative analysis with a furnace of higher power that showed a markedly better production output was performed. For comparison of ferrosilicon furnaces with different geometrical parameters and transformer powers, the theory of physical similarity was applied. Geometrical, electrical and thermal parameters of the reaction zones are included in the comparative analysis. For furnaces with different geometrical parameters, it is important to ensure the same temperature conditions of the reaction zones. Due to diverse mechanisms of heat generation, different criteria for determination of thermal and electrical similarity for the upper and lower reaction zones were assumed contrary to other publications. The parameter c3 (Westly) was assumed the similarity criterion for the upper furnace zones where heat is generated as a result of resistive heating while the parameter J1 (Jaccard) was assumed the similarity criterion for the lower furnace zones where heat is generated due to arc radiation.

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