Three-Dimensional Free-Flight Analysis of the Rapid Turning of a Dragonfly Using Fluid-Structure Interaction Analysis

2013 ◽  
Vol 7 (1) ◽  
pp. 75-88 ◽  
Author(s):  
Masaki HAMAMOTO ◽  
Yoshiji OHTA ◽  
Keita HARA ◽  
Toshiaki HISADA
Keyword(s):  
Interaction Analysis ◽  
Fluid Structure Interaction ◽  
Three Dimensional ◽  
Free Flight ◽  
Fluid Structure ◽  
Structure Interaction

An explicit MPS/FEM coupling algorithm for three-dimensional fluid-structure interaction analysis

2020 ◽  
Vol 121 ◽  
pp. 192-206
Author(s):  
Zumei Zheng ◽  
Guangtao Duan ◽  
Naoto Mitsume ◽  
Shunhua Chen ◽  
Shinobu Yoshimura
Keyword(s):  
Interaction Analysis ◽  
Fluid Structure Interaction ◽  
Three Dimensional ◽  
Fluid Structure ◽  
Structure Interaction ◽  
Coupling Algorithm

Effect of Vertical Pipe Length on the Thermal Stratification in Nuclear Power Plant Surgeline

2008 ◽  
Author(s):  
Young-Jong Kim ◽  
Maan-Won Kim ◽  
Hyun-Soon Lee ◽  
Eunmi Ko
Keyword(s):  
Thermal Stratification ◽  
Interaction Analysis ◽  
Fluid Structure Interaction ◽  
Three Dimensional ◽  
Pipe Length ◽  
Transient Model ◽  
Fluid Structure ◽  
Structure Interaction ◽  
Vertical Part ◽  
Surge Line

During operating transients of the pressurizer, thermal stratification effect may occur especially in the horizontal parts of the surge line. US NRC requires consideration of thermal stratification in surge line as phenomenon that must be considered in the design basis of the surge line. Generally, the fatigue usage factor of the surge line is comparative high, due to its operating temperature and pressure transients and its thermal stratification loads. In this study we have performed some parametric fluid-structure interaction analyses with different length variables of the vertical part of the surge line to study the relationship between the magnitude of thermal stratification and the length of vertical part of the surge line. The conservativeness of the traditional finite element model for thermal stratification analysis based on the conservative assumption in the surge line was also discussed by comparison of the results of three-dimensional time transient fluid-structure interaction analysis of this study. Stresses calculated with three-dimensional time transient model were considerably reduced comparing with the traditional analysis.

Parameter analysis of batoid fin motions using fluid–structure interaction-based simulation and design of experiments

2011 ◽  
Vol 225 (8) ◽  
pp. 1863-1873 ◽  
Author(s):  
J Lee ◽  
D H Kwon
Keyword(s):  
Design Of Experiments ◽  
Marine Mammals ◽  
Interaction Analysis ◽  
Fluid Structure Interaction ◽  
Three Dimensional ◽  
Parameter Analysis ◽  
Fluid Structure ◽  
Structure Interaction ◽  
Cownose Ray ◽  
Underwater Movement

Recently, much attention has been focused on the development of bio-mimetic underwater vehicles with a view to emulate the characteristics and performances of fishes and marine mammals. This study examines the thrust motions of batoids, which have excellent cruise and manoeuvrability characteristics during underwater movement. Numerical results concerning moving distance and velocity derived from batoid fin motions are studied. The commercial software package ADINA is employed for three-dimensional time-dependent fluid–structure interaction analysis. Following the numerical identification of fin motion under the simplified model of an actual cownose ray, a parameter design is performed to predict the optimal levels of fin width, thickness, frequency, and amplitude, and the significant factor effects of these in the design of experiments are discussed. This study also shows that fin frequency has strong interaction with amplitude and width.

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