A Steady Method of Damping Coefficient Prediction for Axisymmetric Projectiles

Autor:	Soo Hyung Park, Jang-Hyuk Kwon, Yung-Hoon Yu
Rok vydání:	2006
Předmět:	Physics business.product_category Inertial frame of reference Projectile Flow (psychology) Rotational symmetry Mechanics Physics::Fluid Dynamics Moment (mathematics) Classical mechanics Rocket Pitching moment business Spinning
Zdroj:	Journal of the Korean Society for Aeronautical & Space Sciences. 34:1-8
ISSN:	1225-1348
DOI:	10.5139/jksas.2006.34.11.001
Popis:	A steady prediction method is presented to compute dynamic damping coefficients for axisymmetric projectiles. Viscous flow analysis is essential to the steady method using a zero-spin coning motion in the inertial coordinate frame. The present method is applied to compute the pitching moment and the pitch-damping moment coefficients for the Army-Navy Spinning Rocket. The results are in good agreement with the parabolized Navier-Stokes data, range data, and unsteady prediction data. Predictions for Secant-Ogive-Cylinder configurations are performed to investigate effects of afterbody geometries. To investigate the geometrical effect and flow physics, the longitudinal developments of the coefficients are examined in detail.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::5fefbfe0e0e34398eab742d8dba0e533 https://doi.org/10.5139/jksas.2006.34.11.001 Zobrazit plný text záznamu