Three-Dimensional Numerical Simulation of Airflow and Vibration Analysis for Upper Airway of Humans

2008 ◽  
pp. 195-195
Author(s):  
Chi Yu ◽  
Yuefang Wang ◽  
Yingxi Liu ◽  
Xiuzhen Sun
Keyword(s):  
Numerical Simulation ◽  
Vibration Analysis ◽  
Three Dimensional ◽  
Upper Airway

Numerical Simulation and Vibration Analysis of Inner Flow Field for Lage-Sized Throttle Valve

2012 ◽  
Vol 233 ◽  
pp. 154-157
Author(s):  
Guo Qin Huang ◽  
Ying He ◽  
Jin Yu
Keyword(s):  
Fluid Dynamics ◽  
Numerical Simulation ◽  
Flow Field ◽  
Vibration Analysis ◽  
Fluid Velocity ◽  
Three Dimensional ◽  
Control Valve ◽  
Flow Area ◽  
Throttle Valve ◽  
Computational Fluid Dynamics Cfd

Based on the computational fluid dynamics(CFD) technique, the three-dimensional inner flow field of a large-sized throttle valve was built and the dynamics characteristics of the control valve were analyzed. The results indicate that the main reason for the spool and valve vibration was the cavitations at the spool and the whirlpool flow at the outlet of the valve, and the fluid velocity rises as the decreasing of the flow area at the same opening. The research f indings will provide the theory basis for the later throttle valves development and optimization with littler vibration and higher efficiency.

scholarly journals Blowing and drifting snow in Alpine terrain: numerical simulation and related field measurements

1998 ◽  
Vol 26 ◽  
pp. 174-178 ◽  
Author(s):  
Peter Gauer
Keyword(s):  
Numerical Simulation ◽  
Numerical Model ◽  
Three Dimensional ◽  
Field Measurements ◽  
Blowing Snow ◽  
Related Field ◽  
Drifting Snow ◽  
Physically Based ◽  
Snow Transport

A physically based numerical model of drifting and blowing snow in three-dimensional terrain is developed. The model includes snow transport by saltation and suspension. As an example, a numerical simulation for an Alpine ridge is presented and compared with field measurements.

Three-dimensional numerical simulation of wave-induced scour around a pile on a sloping beach

2021 ◽  
Vol 233 ◽  
pp. 109174
Author(s):  
Jinzhao Li ◽  
David R. Fuhrman ◽  
Xuan Kong ◽  
Mingxiao Xie ◽  
Yilin Yang
Keyword(s):  
Numerical Simulation ◽  
Three Dimensional ◽  
Sloping Beach ◽  
Wave Induced
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