Aerodynamic and trajectory characteristics of a typical mortar projectile with a deflectable nose

Yu Ming Ren, Shu Shan Wang, Xun Cheng Guo, Yue Song Mei

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Deflectable nose control is a new trajectory correction method. In this paper, the aerodynamic andtrajectory characteristics of a typical mortar projectile with a deflectable nose are investigatedwith respect to its flight conditions. Using the method of wind tunnel testing, the aerodynamiccoefficients of four kinds of mortar models were measured under the conditions of differentangles of attack from-10° to 10° and Mach numbers from 0.3 to 0.9. Based on the aerodynamiccoefficients, the trajectory ranges at different nose deflection angles and times were calculated.Furthermore, a trajectory optimization was performed by reducing the static margin. The resultsand discussions show that the nose deflection provided limited lift, while the pitching momentvaried significantly. The mortar obtained the extended flight range and trajectory correctionability with nose deflection. This is an extended abstract of a paper that will be published inDefence Technology, 2019.

Original languageEnglish
Title of host publicationInterior Ballistics, Exterior Ballistics, Launch Dynamics, Others
EditorsV. K. Saraswat, G. Satheesh Reddy, Clive Woodley
PublisherDEStech Publications Inc.
Pages643-647
Number of pages5
ISBN (Electronic)9781605956107
Publication statusPublished - 2019
Event31st International Symposium on Ballistics, BALLISTICS 2019 - Hyderabad, India
Duration: 4 Nov 20198 Nov 2019

Publication series

NameProceedings - 31st International Symposium on Ballistics, BALLISTICS 2019
Volume1

Conference

Conference31st International Symposium on Ballistics, BALLISTICS 2019
Country/TerritoryIndia
CityHyderabad
Period4/11/198/11/19

Keywords

  • Aerodynamic characteristics
  • Nose deflection
  • Trajectory simulation
  • Wind tunnel test

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Ren, Y. M., Wang, S. S., Guo, X. C., & Mei, Y. S. (2019). Aerodynamic and trajectory characteristics of a typical mortar projectile with a deflectable nose. In V. K. Saraswat, G. S. Reddy, & C. Woodley (Eds.), Interior Ballistics, Exterior Ballistics, Launch Dynamics, Others (pp. 643-647). (Proceedings - 31st International Symposium on Ballistics, BALLISTICS 2019; Vol. 1). DEStech Publications Inc..