TY - JOUR
T1 - Numerical and experimental investigation of an annular jet flow with large blockage
AU - Taglia, Christian Del
AU - Blum, Lars
AU - Gass, Jürg
AU - Ventikos, Yiannis
AU - Poulikakos, Dimos
PY - 2004/5
Y1 - 2004/5
N2 - Unsteady 3-D numerical simulations and 3-D LDA measurements of an annular jet with a blockage ratio of 0.89 and Reynolds number 4400 are presented. At these flow conditions, the flow inside of the recirculation zone is asymmetric, with a preferential direction. Very good predictions of the velocity fluctuation values are achieved with the unsteady simulation technique in the same region, as the fluctuations are mainly large scale, structure dominated. A frequency near to 10 Hz is identified in the simulations, which is attributed to the principal shedding behavior of the vortical structures.
AB - Unsteady 3-D numerical simulations and 3-D LDA measurements of an annular jet with a blockage ratio of 0.89 and Reynolds number 4400 are presented. At these flow conditions, the flow inside of the recirculation zone is asymmetric, with a preferential direction. Very good predictions of the velocity fluctuation values are achieved with the unsteady simulation technique in the same region, as the fluctuations are mainly large scale, structure dominated. A frequency near to 10 Hz is identified in the simulations, which is attributed to the principal shedding behavior of the vortical structures.
UR - http://www.scopus.com/inward/record.url?scp=11144313569&partnerID=8YFLogxK
U2 - 10.1115/1.1760533
DO - 10.1115/1.1760533
M3 - Article
AN - SCOPUS:11144313569
SN - 0098-2202
VL - 126
SP - 375
EP - 384
JO - Journal of Fluids Engineering, Transactions of the ASME
JF - Journal of Fluids Engineering, Transactions of the ASME
IS - 3
ER -