Interaction between the jet and wakes as a method for passive control of plane impinging jets

0361059 - ÚT 2012 RIV US eng C - Conference Paper (international conference)
Trávníček, Zdeněk - Tesař, Václav - Maršík, František
Interaction between the jet and wakes as a method for passive control of plane impinging jets.
8th International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics HEFAT2011. Leonia, NJ 07605: EDAS Conference Services, 2011 - (Meyer, J.), s. 319-326. ISBN 978-1-86854-948-1.
[International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics /8./ HEFAT2011. Pointe Aux Piments (MU), 11.07.2011-13.07.2011]
R&D Projects: GA ČR(CZ) GA101/09/1959; GA MŠMT(CZ) 1M06031; GA AV ČR(CZ) IAA200760801
Institutional research plan: CEZ:AV0Z20760514
Keywords : impinging jet * heat transfer * naphthalene sublimation
Subject RIV: BK - Fluid Dynamics

A planar impinging air jet was experimentally investigated, with passive flow control as means of heat/mass transfer enhancement. An array of small cylinders was fixed at the nozzle lips so as to bridge the nozzle exit gap. Experiments used mainly the naphthalene sublimation technique (taking into account the heat/mass transfer analogy). Also measured were the local velocities. To quantify the heat/mass transfer effects, three procedures are proposed. Compared with the standard planar impinging jet at the optimal nozzle-to-wall distance, the enhancement of the average heat/mass transfer was demonstrated to reach up to 8%.
Permanent Link: http://hdl.handle.net/11104/0198471