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Reduction of fluid forces for flow past side-by-side cylinders using downstream attached splitter plates
Ali Ahmed1, Shams Ul Islam2, Abdul Quayam Khan3
1Department of Mathematics, University of Balochistan Quetta, Quetta, Pakistan.
Computational Particle Mechanics
|June 26, 2023
Summary
Splitter plates effectively reduce drag and suppress vortex shedding behind three square cylinders at low Reynolds numbers. Optimal plate lengths significantly control fluid dynamics, minimizing chaotic vortices and reducing drag and lift fluctuations.
Area of Science:
- Fluid Dynamics
- Computational Mechanics
Background:
- Vortex shedding and drag are significant challenges in fluid dynamics.
- Understanding flow behavior around bluff bodies is crucial for engineering applications.
Purpose of the Study:
- To investigate drag reduction and vortex shedding suppression behind three square cylinders with splitter plates.
- To analyze the impact of gap spacing and splitter plate length on flow dynamics.
Main Methods:
- Two-dimensional numerical simulation using the lattice Boltzmann method.
- Parametric study varying gap spacing and splitter plate lengths.
Main Results:
- Splitter plates are critical for suppressing vortex shedding and reducing drag.
- Maximum drag reduction achieved at small spacing with the longest splitter plates.
- Splitter plates significantly suppress fluctuating lift.
Conclusions:
- Splitter plates offer an effective method for controlling flow-induced vibrations and reducing drag.
- The study provides insights into optimizing configurations for drag reduction in cylinder arrays.
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