Flight Simulation of Water Rocket, Shinichi
Flight Simulation of Water Rocket, Shinichi
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水火箭飞行模拟 新一
DOI：
10.1142/s0219876221410176
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发表时间：
2021
影响因子：
1.7
通讯作者：
Seiichi Takeuchi
中科院分区：
文献类型：
--
作者：
Asao;Masashi Yamakawa;Kento Sawanoi;Seiichi Takeuchi
水火箭的飞行涉及复杂的流动，例如压力容器中的气液两相流和喷射孔中的射流。它可以通过开发再现和分析复杂现象的方法来应用于各种现象。采用计算流体力学方法对水火箭的计算模型进行了飞行仿真。我们进行了模拟，以估计计算模型和流固耦合的推力数据。模拟的飞行轨迹定性地与从先前的实验中获得的相匹配。另外，通过模拟水火箭表面的压力分布和周围的流动，可以确认水火箭的姿态变化和周围产生的漩涡，因此可以模拟飞行中的水火箭周围的流动，这是通过传统的理论计算和实验无法获得的。
The flight of a water rocket involves complicated flows such as a gas–liquid two-phase flow in a pressure tank and a jet flow in an ejection hole. It can be applied to various phenomena by developing a method of reproducing and analyzing complicated phenomena. We simulated the flight of a calculation model of a water rocket by computational fluid dynamics. We conducted the simulation to estimate the thrust data of the calculation model and fluid–structure interaction. The simulated flight trajectory qualitatively matched that obtained from a previous experiment. In addition, it was possible to confirm changes in the attitude of the water rocket and vortices generated around it by simulating the pressure distribution on the surface of it and the flow around it. Therefore, it was possible to simulate the flow around a flying water rocket, which cannot be obtained through conventional theoretical calculations and experiments.