scholarly journals Viscoelastic fluid-structure interactions between a flexible cylinder and wormlike micelle solution

2018 ◽  
Vol 3 (6) ◽  
Author(s):  
Anita A. Dey ◽  
Yahya Modarres-Sadeghi ◽  
Jonathan P. Rothstein
Keyword(s):  
Viscoelastic Fluid ◽  
Fluid Structure Interactions ◽  
Flexible Cylinder ◽  
Fluid Structure ◽  
Wormlike Micelle ◽  
Micelle Solution

scholarly journals Oscillations of a cantilevered micro beam driven by a viscoelastic flow instability

Soft Matter ◽  
2020 ◽  
Vol 16 (5) ◽  
pp. 1227-1235 ◽  
Author(s):  
Anita A. Dey ◽  
Yahya Modarres-Sadeghi ◽  
Anke Lindner ◽  
Jonathan P. Rothstein
Keyword(s):  
Polymer Solution ◽  
Viscoelastic Fluid ◽  
Flow Instability ◽  
Viscoelastic Flow ◽  
Fluid Structure Interactions ◽  
Fluid Structure ◽  
Micro Scale ◽  
Confined Flow ◽  
Cantilevered Beam

We report evidence of viscoelastic fluid–structure interactions at micro-scale between a flexible cantilevered beam and a confined flow of polymer solution.

scholarly journals Observation of lock-in for viscoelastic fluid–structure interactions

2020 ◽  
Vol 96 ◽  
pp. 103025 ◽  
Author(s):  
Anita A. Dey ◽  
Yahya Modarres-Sadeghi ◽  
Jonathan P. Rothstein
Keyword(s):  
Viscoelastic Fluid ◽  
Fluid Structure Interactions ◽  
Fluid Structure ◽  
Lock In

Fluid-Structure Interactions

2009 ◽  
Author(s):  
Michael Paidoussis ◽  
Stuart Price ◽  
Emmanuel de Langre
Keyword(s):  
Fluid Structure Interactions ◽  
Fluid Structure

Experimental Mixing Parameterization Due to Multiphase Fluid � Structure Interactions

2010 ◽  
Vol 5 (2) ◽  
pp. 1-8
Author(s):  
Ranis N. Ibragimov ◽  
◽  
Akshin S. Bakhtiyarov ◽  
Margaret Snell ◽  
◽  
...  
Keyword(s):  
Fluid Structure Interactions ◽  
Fluid Structure ◽  
Multiphase Fluid

scholarly journals Cross-Flow Tidal Turbines with Highly Flexible Blades—Experimental Flow Field Investigations at Strong Fluid–Structure Interactions

Energies ◽  
2021 ◽  
Vol 14 (4) ◽  
pp. 797
Author(s):  
Stefan Hoerner ◽  
Iring Kösters ◽  
Laure Vignal ◽  
Olivier Cleynen ◽  
Shokoofeh Abbaszadeh ◽  
...  
Keyword(s):  
Flow Field ◽  
High Speed ◽  
Cross Flow ◽  
Speed Ratio ◽  
Fluid Structure Interactions ◽  
Dimensional Parameter ◽  
Fluid Structure ◽  
Passive Flow Control ◽  
Tidal Turbines ◽  
Tidal Turbine

Oscillating hydrofoils were installed in a water tunnel as a surrogate model for a hydrokinetic cross-flow tidal turbine, enabling the study of the effect of flexible blades on the performance of those devices with high ecological potential. The study focuses on a single tip-speed ratio (equal to 2), the key non-dimensional parameter describing the operating point, and solidity (equal to 1.5), quantifying the robustness of the turbine shape. Both parameters are standard values for cross-flow tidal turbines. Those lead to highly dynamic characteristics in the flow field dominated by dynamic stall. The flow field is investigated at the blade level using high-speed particle image velocimetry measurements. Strong fluid–structure interactions lead to significant structural deformations and highly modified flow fields. The flexibility of the blades is shown to significantly reduce the duration of the periodic stall regime; this observation is achieved through systematic comparison of the flow field, with a quantitative evaluation of the degree of chaotic changes in the wake. In this manner, the study provides insights into the mechanisms of the passive flow control achieved through blade flexibility in cross-flow turbines.

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