Drag Mitigation of Trilobed Airship Hull through Aerodynamic Comparison with Conventional Single-Lobed Hull

Tripathi, Manish K.; Manikandan, M.; Pandey, Paritosh; Pant, Rajkumar S.

doi:10.1061/jaeeez.aseng-4793

Cited by 1 publication

(1 citation statement)

References 39 publications

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“…The computational model employed uses the SST (shear stress transport) K-ω model, which has good adaptability for handling different interfaces and exhibits good convergence [21][22][23]. The simulation conditions are set, as shown in Table 5.…”

Section: External Ballistic Aerodynamic Simulation Of the Front-stage...mentioning

confidence: 99%

Dynamics Analysis of Separation Mechanism for Rotating Projectiles at the End of Trajectory

Zhao,

Yue,

et al. 2024

Mathematical Problems in Engineering

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Spin separation technology is a key technology for realizing the detection function at the end of the rotational trajectory. It is also a necessary condition for the fuse control system to adjust its control strategy according to actual combat needs. To explore a new type of proximity fuse detection method, this article first designs a detection separation mechanism for the end of the trajectory. An interior ballistic model of the separation mechanism was then established through closed bomb tests and equivalent interior ballistic equations, and the aerodynamic parameters of the front-stage separation body at the moment of separation were obtained based on computational fluid dynamics numerical simulation. Finally, a separation dynamics model of the separation mechanism was established to analyze the motion state after the separation action of the front-stage separation body. The results demonstrate the feasibility of the proposed separation mechanism. The discrepancy between the simulation and experiment of the velocity increment for the front-stage separation body is about 1.07%. The attack angle for the front-stage separation body is below 2°, and the period with a displacement between two stage bodies greater than 3 m is around 0.365 s. This research can provide new ideas and theoretical references for the design of a similar fuse detection separation mechanism.

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Section: External Ballistic Aerodynamic Simulation Of the Front-stage...mentioning

confidence: 99%

Dynamics Analysis of Separation Mechanism for Rotating Projectiles at the End of Trajectory

Zhao,

Yue,

et al. 2024

Mathematical Problems in Engineering

View full text Add to dashboard Cite

show abstract

Drag Mitigation of Trilobed Airship Hull through Aerodynamic Comparison with Conventional Single-Lobed Hull

Cited by 1 publication

References 39 publications

Dynamics Analysis of Separation Mechanism for Rotating Projectiles at the End of Trajectory

Dynamics Analysis of Separation Mechanism for Rotating Projectiles at the End of Trajectory

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