Title: Simulation and analysis on aerodynamic characteristics of deflectable nose

Authors: Bo Zhang; Shushan Wang; Mengyu Cao; Yuxin Xu

Addresses: State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing, 100081, China; Institute of Technology, Bohai University, Liaoning, 121013, China ' State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing, 100081, China ' KEVIN AVIC, Beijing, 100081, China ' State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing, 100081, China

Abstract: This study uses ANSYS CFX to simulate the aerodynamic characteristics of a rocket-assisted projectile (RAP) with deflectable nose, obtains lift coefficient and drag coefficient with different oncoming airflow velocity, attack angles and deflection angles. The simulation results were verified with experimental data from actual wind tunnel tests. Analysis of the results shows that simulation results vary with nose deflection angle, and how nose deflection affects external ballistics. This research could establish a foundation for further investigations on trajectory control.

Keywords: nose deflection; computational fluid dynamics; CFD; self-adaptive munitions; piezoceramics; aerodynamics; wind tunnels; external ballistics; simulation; rocket-assisted projectiles; RAPs; lift coefficient; drag coefficient; airflow velocity; attack angles; deflection angles.

DOI: 10.1504/PCFD.2015.072012

Progress in Computational Fluid Dynamics, An International Journal, 2015 Vol.15 No.5, pp.279 - 289

Received: 08 May 2021
Accepted: 12 May 2021

Published online: 28 Sep 2015 *

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