Vorticity transport associated with the dominant vortical structure of twin jets in crossflow.

Kód výsledku v IS VaVaI

RIV/67985874:_____/01:11013073 - isvavai.cz

Výsledek na webu

—

DOI - Digital Object Identifier

—

Jazyk výsledku

angličtina

Název v původním jazyce

Vorticity transport associated with the dominant vortical structure of twin jets in crossflow.

Popis výsledku v původním jazyce

The present work is concerned with 'twin jets in crossflow' (TJICF), where the configuration consists of a pair of identical jet nozzles and jet-flow conditions at the nozzle exits. The mean flow velocity vector and associated turbulence statistics of the TJICF have been determined using the standard crossed hot-wire anemometry technique. In the present contribution two geometrically symmetric TJICF arrangements, namely tandem and side-by-side arrangements (both with a nozzle centre-to-centre separationof 5D), are examined, focusing upon the dominant vortical structure rather similar to that of the well-known contrarotating vortex pair (CVP) of the single JICF. The formation and decay of this dominant vortical structure is closely associated with theturbulent vorticity transport. The two TJICF arrangements under consideration have their own specific vorticity features which are, firstly, visualized and interpreted in terms of turbulent vorticity fluxes. Secondly, the vorticity transp

Název v anglickém jazyce

Vorticity transport associated with the dominant vortical structure of twin jets in crossflow.

Popis výsledku anglicky

The present work is concerned with 'twin jets in crossflow' (TJICF), where the configuration consists of a pair of identical jet nozzles and jet-flow conditions at the nozzle exits. The mean flow velocity vector and associated turbulence statistics of the TJICF have been determined using the standard crossed hot-wire anemometry technique. In the present contribution two geometrically symmetric TJICF arrangements, namely tandem and side-by-side arrangements (both with a nozzle centre-to-centre separationof 5D), are examined, focusing upon the dominant vortical structure rather similar to that of the well-known contrarotating vortex pair (CVP) of the single JICF. The formation and decay of this dominant vortical structure is closely associated with theturbulent vorticity transport. The two TJICF arrangements under consideration have their own specific vorticity features which are, firstly, visualized and interpreted in terms of turbulent vorticity fluxes. Secondly, the vorticity transp

Druh

D - Stať ve sborníku

CEP obor

BK - Mechanika tekutin

OECD FORD obor

—

Projekt

IAA2060803: Analýza vybraných smykových toků

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2001

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

Proceedings of the 14th Australasian Fluid Mechanics Conference.

ISBN

1-876346-33-7

ISSN

—

e-ISSN

—

Počet stran výsledku

4

Strana od-do

741-744

Název nakladatele

Department of Mechanical Engineering, Adelaide University

Místo vydání

Adelaide

Místo konání akce

Adelaide [AU]

Datum konání akce

9. 12. 2001

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

—