Lie Group Dynamics of Multibody System in Vortical Fluid Flow

2020 ◽  
pp. 409-417
Author(s):  
Zdravko Terze ◽  
Viktor Pandža ◽  
Dario Zlatar
Keyword(s):  
Fluid Flow ◽  
Group Dynamics ◽  
Lie Group ◽  
Multibody System

scholarly journals Lie group dynamics of reduced multibody-fluid systems

2021 ◽  
Vol 9 (2) ◽  
pp. 167-177
Author(s):  
Zdravko Terze ◽  
Viktor Pandža ◽  
Marijan Andrić ◽  
Dario Zlatar
Keyword(s):  
Group Dynamics ◽  
Lie Group ◽  
Fluid Systems

Characteristics of Fluid Flow Between Single Rigid Body and Wall of Small-Diameter Tube

2007 ◽  
Author(s):  
Daichi Ishii ◽  
Kohei Aratake ◽  
Tatsuya Otsuka ◽  
Masatsugu Yoshizawa
Keyword(s):  
Boundary Layer ◽  
Fluid Flow ◽  
Rigid Body ◽  
Constant Velocity ◽  
Multibody System ◽  
Small Diameter ◽  
Flow Characteristics ◽  
The Body ◽  
Narrow Tube ◽  
Drive Effect

A multibody system that moves with fluid inside a small-diameter tube is applied to some parts of industry such as a PIG and it is also expected to be developed for future engineering applications. As a first step to considering a multibody system, this study focused on elucidating the flow characteristics around a single rigid body and understanding the effect of a bypass hole. The model considered has been a single rigid body moving at a constant velocity in a narrow tube. Assuming that the flow is steady axisymmetric laminar flow, the fluid flow around the body has been experimentally observed and numerically analyzed. A Rankine’s combined vortex was observed around the body and it was also observed that a layer of fluid near the top wall has characteristics of the boundary layer. Furthermore, a minimum allowable thickness of a bypass hole to cause the successful front-drive effect was obtained.

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