Optimizations for predictive–corrective particle-based fluid simulation on GPU

Author(s):  
Samuel Carensac ◽  
Nicolas Pronost ◽  
Saïda Bouakaz
Keyword(s):  
Author(s):  
ZH Yuan ◽  
SY Guo ◽  
SN Zhang ◽  
JQ Zhao ◽  
WJ Lu ◽  
...  

Based on the suspension of a missile using folding rotary wings and airbags, in order to improve the basic parameters and motion characteristics of the rotor during the unfolding process and analyze the aerodynamic characteristics of the entire device in the suspension state, after proposing a scheme of double-spin mechanism, the main folding and unfolding mechanism, initial driving device, rotating driving device, and locking mechanism were designed, and the simulation research is studied by the Automatic Dynamic Analysis of Mechanical System and Ansys Fluent Fluid Simulation software, respectively. The results show that the rotation rate was controlled at 41.8 mm/s, the various motion parameters are reasonable, and the operation process is relatively smooth, with high reliability. The speed and pressure value at the tip of the rotor are higher and the aerodynamic disturbance is obvious, which has a great influence on the aerodynamic performance. The speed and pressure distribution of the surrounding flow field is stable, the lift provided is 46 N, and the lift coefficient is 0.55, which can ensure the long-time suspension state of the missile. This paper puts forward a valuable design idea and has practical reference value for the research of the suspended missile.


2015 ◽  
Vol 34 (6) ◽  
pp. 1-12 ◽  
Author(s):  
Beibei Liu ◽  
Gemma Mason ◽  
Julian Hodgson ◽  
Yiying Tong ◽  
Mathieu Desbrun
Keyword(s):  

Micromachines ◽  
2021 ◽  
Vol 12 (7) ◽  
pp. 763
Author(s):  
Yao Zhao ◽  
Kai Zhang ◽  
Fengbei Guo ◽  
Mingyue Yang

A fluid simulation calculation method of the microfluidic network is proposed as a means to achieve the flow distribution of the microfluidic network. This paper quantitatively analyzes the influence of flow distribution in microfluidic devices impacted by pressure variation in the pressure source and channel length. The flow distribution in microfluidic devices with three types of channel lengths under three different pressure conditions is studied and shows that the results obtained by the simulation calculation method on the basis of the fluid network are close to those given by the calculation method of the conventional electrical method. The simulation calculation method on the basis of the fluid network studied in this paper has computational reliability and can respond to the influence of microfluidic network length changes to the fluid system, which plays an active role in Lab-on-a-chip design and microchannel flow prediction.


2015 ◽  
Vol 117 (8) ◽  
pp. 083301 ◽  
Author(s):  
Ying-Shuang Liang ◽  
Yong-Xin Liu ◽  
Yu-Ru Zhang ◽  
You-Nian Wang

2010 ◽  
Vol 26 (4) ◽  
pp. 243-252 ◽  
Author(s):  
Jian He ◽  
Xi Chen ◽  
Zhangye Wang ◽  
Chen Cao ◽  
He Yan ◽  
...  

1997 ◽  
Vol 17 (3) ◽  
pp. 52-61 ◽  
Author(s):  
J.X. Chen ◽  
N.d.V. Lobo ◽  
C.E. Hughes ◽  
J.M. Moshell

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