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Authors: Hui Zhao ; Anyang Wei ; Kun Luo and Jianren Fan

Affiliation: Zhejiang University, China

Keyword(s): Direct Numerical Simulation, Immersed Boundary Method, Boundary Layer, Sphere, Plane.

Related Ontology Subjects/Areas/Topics: Complex Systems Modeling and Simulation ; Fluid Dynamics ; Simulation and Modeling

Abstract: Direct Numerical Simulation coupled with Immersed Boundary Method (IBM) has attracted wide atten¬tion recent years, making this technique a significant role in many practical engineering areas. This paper described a direct numerical study of flow past a sphere above a plane, which can obtain detail infor¬mation of flow field and vortex structure. A combined multiple-direct forcing and immersed boundary method (MDF/IBM) was used to deal with the coupling between fluid and solid. The Reynolds number based on sphere diameter was 4171. Behaviours of the vortices were observed through the simulation. The velocity distribution switched from laminar boundary to turbulent boundary. A recirculation region was observed behind the sphere. The influence of the sphere on the boundary layer, the center peak defect, the turbulence intensity and the Reynolds stresses are explored.

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Paper citation in several formats:
Zhao, H.; Wei, A.; Luo, K. and Fan, J. (2012). Direct Numerical Simulation of Flow Past a Sphere in a Plane Turbulent Boundary Layer with Immersed Boundary Method. In Proceedings of the 2nd International Conference on Simulation and Modeling Methodologies, Technologies and Applications - SIMULTECH; ISBN 978-989-8565-20-4; ISSN 2184-2841, SciTePress, pages 243-249. DOI: 10.5220/0004056802430249

@conference{simultech12,
author={Hui Zhao. and Anyang Wei. and Kun Luo. and Jianren Fan.},
title={Direct Numerical Simulation of Flow Past a Sphere in a Plane Turbulent Boundary Layer with Immersed Boundary Method},
booktitle={Proceedings of the 2nd International Conference on Simulation and Modeling Methodologies, Technologies and Applications - SIMULTECH},
year={2012},
pages={243-249},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0004056802430249},
isbn={978-989-8565-20-4},
issn={2184-2841},
}

TY - CONF

JO - Proceedings of the 2nd International Conference on Simulation and Modeling Methodologies, Technologies and Applications - SIMULTECH
TI - Direct Numerical Simulation of Flow Past a Sphere in a Plane Turbulent Boundary Layer with Immersed Boundary Method
SN - 978-989-8565-20-4
IS - 2184-2841
AU - Zhao, H.
AU - Wei, A.
AU - Luo, K.
AU - Fan, J.
PY - 2012
SP - 243
EP - 249
DO - 10.5220/0004056802430249
PB - SciTePress

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