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Fluid dynamics and heat transfer in the wake of a sphere

Author
Rodriguez, I.; Lehmkuhl, O.; Soria, M.; Gómez, S.; Dominguez, M.; Kowalski, L.
Type of activity
Journal article
Journal
International journal of heat and fluid flow
Date of publication
2019-04
Volume
76
First page
141
Last page
153
DOI
https://doi.org/10.1016/j.ijheatfluidflow.2019.02.004 Open in new window
Project funding
ESP2016-79612-C3-2-R
FI-2017-2-0012
FI-2017-3-0018
TRA2017-88508-R- Towards High-fidelity methodologies for INnovative AIRcraft design
URL
https://www.sciencedirect.com/science/article/pii/S0142727X18302583 Open in new window
Abstract
Direct numerical simulation and large-eddy simulation have been performed for a heated sphere at Reynolds numbers of $Re=1000$ and $Re=10^4$, respectively. The Prandtl number for both simulations has been $Pr=0.7$. Measurements of the local and average Nusselt number are performed and compared with literature available experimental results. Average and front stagnation point Nusselt numbers increase with the Reynolds number, while the minimum value moves towards the sphere apex as the flow ...
Keywords
Axisymmetric wakes, DNS, Heat transfer, LES, Sphere
Group of research
MNT - Micro and Nanotechnologies Research Group
TUAREG - Turbulence and Aerodynamics in Mechanical and Aerospace Engineering Research Group

Participants