Dynamics model and simulation optimization analysis of single stage water rocket

IF 4.6 2区 物理与天体物理 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY
Shaozhe Ding, Mengyang Fan, Longbin Liu
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Abstract

The initial launch parameters of water rocket have a significant impact on its flight performance, such as speed and altitude. In this paper, the dynamic equation in the form of parameter increment was obtained through the force analysis of the ascending section of a single stage water rocket, which can effectively reduce the complexity of the numerical calculation program. The numerical calculation of water rocket flight speed, altitude and other parameters was carried out, and the optimization design direction of three parameters of nozzle diameter, initial water loading and initial pressure was proposed. The results indicate that reducing the nozzle diameter will increase the duration of the propulsion phase and affect the maximum speed and height that the rocket body can reach during the propulsion phase. There is an optimal volume ratio of 0.50 for water loading to achieve the highest flight altitude. As the initial pressure increases, the maximum flight altitude linearly increases with a pattern of 0.0767 m/kPa, while the duration of the propulsion phase will decrease with the increase of the initial pressure. The analysis in this paper provides an important reference for the scheme design and structural optimization of water rocket missions.
单级水火箭动力学模型及仿真优化分析
水火箭的初始发射参数对其飞行性能有重要影响,如速度和高度。本文通过对单级水火箭上升段的受力分析,得到了参数增量形式的动力方程,可以有效地降低数值计算程序的复杂性。对水火箭飞行速度、飞行高度等参数进行了数值计算,提出了喷嘴直径、初始载水量和初始压力三个参数的优化设计方向。结果表明,减小喷管直径会增加推进段的持续时间,影响火箭在推进段的最大速度和最大高度。为达到最高飞行高度,载水的最佳容积比为0.50。随着初始压力的增大,最大飞行高度呈0.0767 m/kPa线性增加,推进段持续时间随着初始压力的增大而减小。本文的分析为水火箭的方案设计和结构优化提供了重要参考。
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来源期刊
Results in Physics
Results in Physics MATERIALS SCIENCE, MULTIDISCIPLINARYPHYSIC-PHYSICS, MULTIDISCIPLINARY
CiteScore
8.70
自引率
9.40%
发文量
754
审稿时长
50 days
期刊介绍: Results in Physics is an open access journal offering authors the opportunity to publish in all fundamental and interdisciplinary areas of physics, materials science, and applied physics. Papers of a theoretical, computational, and experimental nature are all welcome. Results in Physics accepts papers that are scientifically sound, technically correct and provide valuable new knowledge to the physics community. Topics such as three-dimensional flow and magnetohydrodynamics are not within the scope of Results in Physics. Results in Physics welcomes three types of papers: 1. Full research papers 2. Microarticles: very short papers, no longer than two pages. They may consist of a single, but well-described piece of information, such as: - Data and/or a plot plus a description - Description of a new method or instrumentation - Negative results - Concept or design study 3. Letters to the Editor: Letters discussing a recent article published in Results in Physics are welcome. These are objective, constructive, or educational critiques of papers published in Results in Physics. Accepted letters will be sent to the author of the original paper for a response. Each letter and response is published together. Letters should be received within 8 weeks of the article''s publication. They should not exceed 750 words of text and 10 references.
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