The presence of a wall near a rigid sphere is known to disturb the particle fore and aft flow field and thereby affect particle drag and lift. This effect has wide ranging implications in particulate flows such as the dynamics of blood cells in microvessels or the transport of particulates in channel and pipe flows. In this study, an Immersed Boundary Direct Numerical Simulation (IB-DNS) is used to predict the dynamics of a rigid spherical body in the presence of a wall at laminar flows. The wall effect is shown to be significant when the dimensionless ratio (L/D) of the particle diameter (D) to the wall distance (L) is less than 3, and when particle Reynolds number is less than 10. Based on the IB-DNS results, a correlation for the wall effect on drag coefficient is derived that can be used to predict the actual drag coefficient for rigid spheres under the influence of a wall for L/D between 0.75 and 3 and Reynolds number between 0.18 and 10. The data underlying the correlation developed herein is validated by comparison to published experimental, numerical, and analytical correlations. The application of the IB-DNS method to study the wall effect is both novel and significant. It is novel in that such an application is not yet demonstrated. It is significant in that it; (1) utilizes a uniform Cartesian fluid mesh and (2) requires no sub domains of higher grid resolution in the wall gap.
Skip Nav Destination
ASME 2017 Fluids Engineering Division Summer Meeting
July 30–August 3, 2017
Waikoloa, Hawaii, USA
Conference Sponsors:
- Fluids Engineering Division
ISBN:
978-0-7918-5805-9
PROCEEDINGS PAPER
An Immersed Boundary Direct Numerical Simulation Study of the Wall Effect on the Dynamics of a Rigid Sphere Available to Purchase
Jason Gatewood,
Jason Gatewood
Nextera Energy - Florida Power and Light, Juno Beach, FL
Search for other works by this author on:
Zhi-Gang Feng
Zhi-Gang Feng
University of Texas at San Antonio, San Antonio, TX
Search for other works by this author on:
Jason Gatewood
Nextera Energy - Florida Power and Light, Juno Beach, FL
Zhi-Gang Feng
University of Texas at San Antonio, San Antonio, TX
Paper No:
FEDSM2017-69381, V01BT12A010; 9 pages
Published Online:
October 24, 2017
Citation
Gatewood, J, & Feng, Z. "An Immersed Boundary Direct Numerical Simulation Study of the Wall Effect on the Dynamics of a Rigid Sphere." Proceedings of the ASME 2017 Fluids Engineering Division Summer Meeting. Volume 1B, Symposia: Fluid Measurement and Instrumentation; Fluid Dynamics of Wind Energy; Renewable and Sustainable Energy Conversion; Energy and Process Engineering; Microfluidics and Nanofluidics; Development and Applications in Computational Fluid Dynamics; DNS/LES and Hybrid RANS/LES Methods. Waikoloa, Hawaii, USA. July 30–August 3, 2017. V01BT12A010. ASME. https://doi.org/10.1115/FEDSM2017-69381
Download citation file:
38
Views
Related Proceedings Papers
Related Articles
Instantaneous Liquid Flow Rate Measurement Utilizing the Dynamics of Laminar Pipe Flow
J. Fluids Eng (December,2008)
Steady Flow in an Aneurysm Model: Correlation Between Fluid Dynamics and Blood Platelet Deposition
J Biomech Eng (August,1996)
Frictional Performance of U-Type Wavy Tubes
J. Fluids Eng (September,2003)
Related Chapters
The Design and Implement of Remote Inclinometer for Power Towers Based on MXA2500G/GSM
International Conference on Mechanical and Electrical Technology, 3rd, (ICMET-China 2011), Volumes 1–3
Two Advanced Methods
Applications of Mathematical Heat Transfer and Fluid Flow Models in Engineering and Medicine
Introduction
Design of Mechanical Bearings in Cardiac Assist Devices