Study of adaptive blades in extreme environment using fluid–structure interaction method

2019 ◽  
Vol 91 ◽  
pp. 102734 ◽  
Author(s):  
Weipao Miao ◽  
Chun Li ◽  
Yuanbo Wang ◽  
Bin Xiang ◽  
Qingsong Liu ◽  
...  
Keyword(s):  
Fluid Structure Interaction ◽  
Extreme Environment ◽  
Interaction Method ◽  
Fluid Structure ◽  
Structure Interaction

scholarly journals Fluid–structure interaction analysis of fluid pressure pulsation and structural vibration features in a vertical axial pump

2019 ◽  
Vol 11 (3) ◽  
pp. 168781401982858
Author(s):  
Liaojun Zhang ◽  
Shuo Wang ◽  
Guojiang Yin ◽  
Chaonian Guan
Keyword(s):  
Pressure Pulsation ◽  
Interaction Analysis ◽  
Equivalent Stress ◽  
Fluid Structure Interaction ◽  
Fluid Pressure ◽  
Structural Vibration ◽  
Interaction Method ◽  
Fluid Structure ◽  
Structure Interaction ◽  
Axial Pump

Current studies on the operation of the axial pump mainly focus on hydraulic performances, while the coupled interaction between the fluid and structure attracts little attention. This study aims to provide numerical investigation into the vibration features in a vertical axial pump based on two-way iterative fluid–structure interaction method. Three-dimensional coupling model was established with high-quality structured grids of ADINA software. Turbulent flow features were studied under design condition, using shear–stress transport k-ω turbulence model and sliding mesh approach. Typical measure points along and perpendicular to flow direction in fluid domain were selected to analyze pressure pulsation features of the impeller and fixed guide vane. By contrast, vibration features of equivalent stress in corresponding structural positions were investigated and compared based on fluid–structure interaction method. In order to explore fluid–structure interaction vibration mechanism, distribution of main frequencies and amplitudes of the measure points was presented based on the Fast Fourier Transformation method. The results reveal the time and frequency law of fluid pressure pulsation and structural vibration at the same position in the vertical axial pump while additionally provide important theoretical guidance for optimization design and safe operation of the vertical axial pump.

scholarly journals Anaysis of Elasto-plastic Deforming of Sturcture by Hydrodynamic Force Using Fluid Structure Interaction Method

2016 ◽  
Vol 44 (11) ◽  
pp. 957-964
Author(s):  
Younghun Lee ◽  
Min-cheol Gwak ◽  
Haeseong Cho ◽  
HyunShig Joo ◽  
SangJoon Shin ◽  
...  
Keyword(s):  
Hydrodynamic Force ◽  
Fluid Structure Interaction ◽  
Interaction Method ◽  
Fluid Structure ◽  
Structure Interaction
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