Abo Bibliothek: Guest
Turbulence Heat and Mass Transfer 6. Proceedings of the Sixth International Symposium On Turbulence Heat and Mass Transfer
September, 14-18, 2009, Rome, Italy

DOI: 10.1615/ICHMT.2009.TurbulHeatMassTransf


ISBN Print: 978-1-56700-262-1

ISSN: 2377-2816

Kinetic energy budgets at the edge of a turbulent jet

page 4
DOI: 10.1615/ICHMT.2009.TurbulHeatMassTransf.560
Get accessGet access

ABSTRAKT

Direct numerical simulations (DNS) of turbulent plane jets are used to assess the kinetic energy dynamics near the turbulent/nonturbulent interface in a jet. The thickness of the vorticity jump at the T/NT interface is equal to the Taylor micro-scale and the irrotational velocity fluctuations near the interface give rise to important Reynolds stresses at the irrotational flow region. Conditional kinetic energy budgets show that most of the terms governing the kinetic energy are concentrated in a region of distancing roughly 3 Taylor-micro scales from the T/NT interface. The effect of the intense large scale vorticity structures in shaping the energy dynamics near the jet edge is assessed.

Digitales Portal Digitale Bibliothek eBooks Zeitschriften Referenzen und Berichte Forschungssammlungen Preise und Aborichtlinien Begell House Kontakt Language English 中文 Русский Português German French Spain