Experimental study on the forcing design for an intermittent injection

Research output: Contribution to journalArticle

Standard

Experimental study on the forcing design for an intermittent injection. / Lacagnina, Giovanni; Szász, Robert Zoltán; Prahl Wittberg, Lisa; Fuchs, Laszlo.

In: Experiments in Fluids, Vol. 59, No. 8, 123, 01.08.2018.

Research output: Contribution to journalArticle

Harvard

APA

CBE

MLA

Vancouver

Author

Lacagnina, Giovanni ; Szász, Robert Zoltán ; Prahl Wittberg, Lisa ; Fuchs, Laszlo. / Experimental study on the forcing design for an intermittent injection. In: Experiments in Fluids. 2018 ; Vol. 59, No. 8.

RIS

TY - JOUR

T1 - Experimental study on the forcing design for an intermittent injection

AU - Lacagnina, Giovanni

AU - Szász, Robert Zoltán

AU - Prahl Wittberg, Lisa

AU - Fuchs, Laszlo

PY - 2018/8/1

Y1 - 2018/8/1

N2 - Abstract: In this paper we consider the effects of acceleration and deceleration on the forcing of an intermittent jet. This experimental study specifically focuses on the effect of the acceleration and deceleration on the mixing of an intermittent jet with the ambient fluid and on the growth of disturbances that may lead to turbulence. The influence of different injection strategies has been evaluated. The results show that the deceleration phase may be able to contribute significantly to enhance the mixing of the jet with the ambient fluid. This effect is manifested primarily around the tail of the jet, towards the end of injection. The acceleration phase on the other hand has mainly impact at the leading part of the jet, where the leading part of the jet forms a mushroom shaped structure with minor mixing effect. Graphical abstract: [Figure not available: see fulltext.].

AB - Abstract: In this paper we consider the effects of acceleration and deceleration on the forcing of an intermittent jet. This experimental study specifically focuses on the effect of the acceleration and deceleration on the mixing of an intermittent jet with the ambient fluid and on the growth of disturbances that may lead to turbulence. The influence of different injection strategies has been evaluated. The results show that the deceleration phase may be able to contribute significantly to enhance the mixing of the jet with the ambient fluid. This effect is manifested primarily around the tail of the jet, towards the end of injection. The acceleration phase on the other hand has mainly impact at the leading part of the jet, where the leading part of the jet forms a mushroom shaped structure with minor mixing effect. Graphical abstract: [Figure not available: see fulltext.].

UR - http://www.scopus.com/inward/record.url?scp=85049526339&partnerID=8YFLogxK

U2 - 10.1007/s00348-018-2574-4

DO - 10.1007/s00348-018-2574-4

M3 - Article

AN - SCOPUS:85049526339

VL - 59

JO - Experiments in Fluids

JF - Experiments in Fluids

SN - 1432-1114

IS - 8

M1 - 123

ER -