Exploration of the Circumferential Velocity Structure Induced by Guide Vane-Type Spiral Flow Generators in a Pipe Flow
Publication: Journal of Hydraulic Engineering
Volume 149, Issue 12
Abstract
Incorporating a guide vane-type spiral flow generator can effectively resolve particle deposition issues during long-distance pipeline conveyance. Combining model experiments and computational fluid dynamics (CFD) results under different guide vane height conditions, the paper investigated the structure of the circumferential velocity and the generated rotational effects of the guide vane-type spiral flow generator. Due to the combined effects of the guide vane constraint and water inertia, an envelope surface with a zero circumferential velocity exists along the inner edge of the guide vanes and in the direction of water flow. The envelope surface divides the circumferential flow velocity distribution into internal negative and external positive velocity zones. This paper discovered that the distribution of the envelope surface in the radial and axial directions is affected by both the height of the guide vanes and the Reynolds number. The rotational intensity of the fluid particles around the axis was characterized by the circumferential moment of momentum. When the relative height of the guide vane was 0.35, the highest percentage of circumferential flow velocity in the flow field was reached, while the rotational kinetic energy conversion efficiency was maximum.
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Data Availability Statement
All data, models, or code that support the findings of this study are available from the corresponding author upon reasonable request.
Acknowledgments
The authors thank the College of Water Science and Engineering of Taiyuan University of Technology for providing the experimental site and the tools to process the experimental data. This work was supported by the National Natural Science Foundation of China (Grant No. 51179116), the Natural Science Foundation of Shanxi Province (Grant No. 202303021211141), and the Shanxi Province Science Foundation for Youths (Grant No. 20210302124454).
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Information & Authors
Information
Published In
Journal of Hydraulic Engineering
Volume 149 • Issue 12 • December 2023
Copyright
© 2023 American Society of Civil Engineers.
History
Received: Sep 8, 2022
Accepted: Aug 9, 2023
Published online: Sep 26, 2023
Published in print: Dec 1, 2023
Discussion open until: Feb 26, 2024
ASCE Technical Topics:
- Aerodynamics
- Computational fluid dynamics technique
- Continuum mechanics
- Dynamics (solid mechanics)
- Engineering fundamentals
- Engineering mechanics
- Equipment and machinery
- Flow (fluid dynamics)
- Fluid dynamics
- Fluid flow
- Fluid mechanics
- Fluid velocity
- Hydrologic engineering
- Motion (dynamics)
- Particle velocity
- Rotation
- Solid mechanics
- Vanes
- Velocity distribution
- Water and water resources
- Wave velocity
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