1D study of the detonation phenomenon and its influence on the interior ballistics of the combustion light gas gun

Zhou, Fei; Liu, Ning; Zhang, Xiangyan; You, Xiao‐Zeng

doi:10.1016/j.dt.2019.06.009

Cited by 3 publications

(3 citation statements)

References 21 publications

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“…Where r p c ð Þ is the exponential burning rate equation of the propellant [20], as shown in Eq. (15).…”

Section: Governing Equations For the Combustion Chambermentioning

confidence: 99%

“…Textbook calculations are mostly based on purposes A and B [20][21][22]. For the modeling of purpose C, during the firing process of the gun, some scholars have studied the flow of the propellant gas [16], the heat transfer between the gas and solid phases [17], the heat transfer behavior of the barrel [18], and the pressure waves due to propellant burning [15,19].…”

Section: Introductionmentioning

confidence: 99%

“…To predict the performance of planned guns [6][7][8][9][10][11][12][13][14]. C. To gain insight into particulars of such physical processes which cannot be observed in detail experimentally [15][16][17][18][19].…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

An Analysis and Calculation Method for One‐Dimensional Balanced Interior Ballistics of a Recoilless Gun

jiang

Tao

Wen

et al. 2022

Propellants Explo Pyrotec

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The balancing force of the interior ballistics is an important issue in the design of the recoilless gun. It has been found in practice that the balancing force design method for recoilless guns based on the traditional classical interior ballistic theory cannot guide the balance from the physical mechanism and process. In order to study the unbalanced force experienced by the recoilless gun during the firing of the projectile and the variation law of its various parameters with time, the analysis and calculation method of the balanced interior ballistics is proposed in this article. This method separately models the aerodynamic and propellant combustion processes of the recoilless gun, using the characteristic line method to solve the model numerically. This method can be used to predict the change of the unbalanced force acting on the recoilless gun during the projectile firing of the recoilless gun. The reliability of the algorithm is verified by the interior ballistic performance when China 78 type 82 mm recoilless smoothbore gun launches the projectile. The study found that the unbalance impulse generated by the gas inside the barrel fired by the recoilless gun accounts for only 1.5 % of the total recoil impulse, but it has a great influence on the amount of impulse a shooter has can take. This approach provides a better understanding of this complex internal ballistic process, which has important implications for the design and improvements of recoilless guns.

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“…Where r p c ð Þ is the exponential burning rate equation of the propellant [20], as shown in Eq. (15).…”

Section: Governing Equations For the Combustion Chambermentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

An Analysis and Calculation Method for One‐Dimensional Balanced Interior Ballistics of a Recoilless Gun

jiang

Tao

Wen

et al. 2022

Propellants Explo Pyrotec

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show abstract

Numerical simulation of interior ballistics two-phase flow in modular charge based on the particle element method

Cheng,

Tao,

et al. 2024

Case Studies in Thermal Engineering

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Influence of embedded structure on two-phase reactive flow characteristics for a small combustion chamber with a moving boundary

Wang,

Zhang

2024

Physics of Fluids

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In special launch scenarios such as armament and aerospace, the scale of the launch system is severely restricted, which causes unstable combustion of propellant. An embedded structure for the small propulsion system driven by solid propellant is proposed to overcome this problem. This study aims to demonstrate the two-phase flow behaviors and launch safety of the combustion chamber with an embedded structure. A two-dimensional two-phase flow model based on the modified two-fluid theory is developed to describe the detailed two-phase flow behaviors in the combustion chamber during launching. Different from most of the existing studies, the constitutive equations determined from actual physical conditions are used to close the system of continuity equations. The numerical results are compared with that of the experiment to verify the accuracy of the numerical model. On this basis, the launch performance of the embedded structure is investigated. The numerical results indicate that the embedded structure facilitates the ignition process and reduces the risk of excessive pressure, but decreases the muzzle velocity at the same time. In addition, the effect of design parameters on launch safety is further investigated. Design parameters directly affect the launch safety, and the selection of reasonable parameters is a useful method for enhancing the launch performance.

show abstract

1D study of the detonation phenomenon and its influence on the interior ballistics of the combustion light gas gun

Cited by 3 publications

References 21 publications

An Analysis and Calculation Method for One‐Dimensional Balanced Interior Ballistics of a Recoilless Gun

An Analysis and Calculation Method for One‐Dimensional Balanced Interior Ballistics of a Recoilless Gun

Numerical simulation of interior ballistics two-phase flow in modular charge based on the particle element method

Influence of embedded structure on two-phase reactive flow characteristics for a small combustion chamber with a moving boundary

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