Study on the effect of pressure on the thrust force of a solid propellant engine operating in a water environment

Authors

  • Nguyen Truong Thanh Institute of Missile, Academy of Military Science and Technology
  • Hoang The Dung (Corresponding Author) Institute of Missile, Academy of Military Science and Technology
  • Bui Dinh Tan Institute of Missile, Academy of Military Science and Technology
  • Bui Ngoc Lam Factory X28, Navy Technical Department
  • Nguyen Van Hung Le Quy Don Technical University
  • Nguyen Huy Thanh Le Quy Don Technical University

DOI:

https://doi.org/10.54939/1859-1043.j.mst.102.2025.141-146

Keywords:

Solid fuel rocket motor; Effect of pressure on thrust; Operation of solid propellant rocket engine in underwater environment.

Abstract

The paper presents the results of research on the impact of ambient pressure on the thrust of solid rocket engines when operating underwater at different depths. The study establishes a system of equations for rocket propulsion, considering the variations in ambient pressure while functioning in an aquatic environment. It develops algorithms and constructs a computational program for rocket propulsion in solid rocket engines operating underwater. The paper further explores how water pressure affects the engine's pressure and thrust.

References

[1]. P. T. Phiet, "Theory of Rocket Engines", Military Technical Academy Publishing House (2006).

[2]. P. T. Phiet, "Fundamentals of Calculating Unguided Rocket Projectiles", Military Technical Academy Publishing House (2006).

[3]. L. S. Tung, N. C. Hoe, H. T. Dung, B. D. Tan, "Fundamentals of Calculation and Design of Solid Propellant Engines", Military Science and Technology Institute Publishing House (2015).

[4]. D. H. Trien, N. T. Thanh, "Application of the Inverse Problem of Launch Dynamics for Calculating and Designing Replacement Charges in Solid Rocket Engines", Journal of Military Science and Technology Research, Weapon Science Conference, pp. 137-144, (2007).

[5]. H. T. Dung, "Study on the Effects of Certain Combustion Chamber Parameters on the Characteristic Operating Parameters of Solid Propellant Rocket Engines", Ph.D. Thesis, Military Science and Technology Institute, pp. 40-60, (2018).

[6]. Q. Wu, Q. Ren, “Tuning the Ballistic Performance of a Single-Burning-Rate Grain Solid Rocket Motor via New Discontinuous Embedded Metal Wires”, Aerospace, vol. 11, no. 4, pp. 308, (2024).

[7]. T. Thomas, L. Simitz “Experimental characterization of thrust for ≤ 20 N-s impulse solid rocket motors”, Journal of Emerging Investigators, vol. 7, pp.1-7, (2024).

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Published

15-04-2025

How to Cite

[1]
Nguyen Truong Thanh, T. D. Hoang, Bui Dinh Tan, Bui Ngoc Lam, Nguyen Van Hung, and Nguyen Huy Thanh, “Study on the effect of pressure on the thrust force of a solid propellant engine operating in a water environment”, JMST, vol. 102, no. 102, pp. 141–146, Apr. 2025.

Issue

Section

Mechanics & Mechanical engineering

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