Contribution to Compressibility Modelling in the Estimation of Forces Acting on Projectile Fragments

Autor:	Alan Catovic, Elvedin Kljuno
Rok vydání:	2020
Předmět:	Physics Computer simulation Projectile Mechanical Engineering Aerospace Engineering Mechanics Ideal gas Aerodynamic force Fragment (logic) Control and Systems Engineering Approximation error Automotive Engineering Compressibility Adiabatic process Civil and Structural Engineering
Zdroj:	Advances in Military Technology. 15:247-263
ISSN:	2533-4123 1802-2308
DOI:	10.3849/aimt.01371
Popis:	The compressibility model was developed and applied to generalized model for prediction of aerodynamic forces acting on irregularly shaped body, such as HE projectile fragments. Model assumes adiabatic compression of air in front of high-velocity fragment since the motion of the fragment is an extremely fast process relative to the heat transfer process. The equation of the state of the ideal gas is adopted. Analysis of results and comparison with results obtained by numerical simulation (CFD software) and experimental data show this correction model significantly reduces the relative error of aerodynamic force modelling in the relevant area of the high velocity of the fragment, when the air compression is significant.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::9e6b9c80af61411d81a165265027df0f https://doi.org/10.3849/aimt.01371 Zobrazit plný text záznamu Plný text ve formátu PDF