We present a combined direct numerical simulation and hot-wire anemometry study of an axisymmetric turbulent wake. The data lead to a revised theory of axisymmetric turbulent wakes which relies on the mean streamwise momentum and turbulent kinetic energy equations, self-similarity of the mean flow, turbulent kinetic energy, Reynolds shear stress and turbulent dissipation profiles, non-equilibrium dissipation scalings and an assumption of constant anisotropy. This theory is supported by the present data up to a distance of 100 times the wake generator's size, which is as far as these data extend.
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Virginia Tech, Kevin T Crofton Dept Aerosp & Ocean Engn, Ctr Res & Engn Aero Hydrodynam Technol, Blacksburg, VA 24061 USAVirginia Tech, Kevin T Crofton Dept Aerosp & Ocean Engn, Ctr Res & Engn Aero Hydrodynam Technol, Blacksburg, VA 24061 USA
Devenport, William J.
Lowe, K. Todd
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Virginia Tech, Kevin T Crofton Dept Aerosp & Ocean Engn, Ctr Res & Engn Aero Hydrodynam Technol, Blacksburg, VA 24061 USAVirginia Tech, Kevin T Crofton Dept Aerosp & Ocean Engn, Ctr Res & Engn Aero Hydrodynam Technol, Blacksburg, VA 24061 USA
机构:
Nagoya Univ, Educ & Res Ctr Flight Engn, Chikusa ku, Nagoya 4648603, JapanUniv Lisbon, Inst Super Tecn, Ave Rovisco Pais 1, P-1049001 Lisbon, Portugal
Watanabe, Tomoaki
Nagata, Koji
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Kyoto Univ, Dept Mech Engn & Sci, C3,Nishikyo ku, Kyoto 6158540, JapanUniv Lisbon, Inst Super Tecn, Ave Rovisco Pais 1, P-1049001 Lisbon, Portugal
Nagata, Koji
da Silva, Carlos B.
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Univ Lisbon, Inst Super Tecn, Ave Rovisco Pais 1, P-1049001 Lisbon, PortugalUniv Lisbon, Inst Super Tecn, Ave Rovisco Pais 1, P-1049001 Lisbon, Portugal