TY - GEN
T1 - Numerical study of laminar jet interacting with turbulent cross-flow
AU - Yao, Yufeng
AU - Castagna, Jony
N1 - Organising Body: International Centre for Heat and Mass Transfer
PY - 2009
Y1 - 2009
N2 - Numerical study has been carried out to investigate a square laminar jet interacting with a fully-developed turbulent cross-flow. A direct numerical simulation code SBLI was used and the simulation Reynolds number is 1000, based on the free-stream quantities and the jet exit width. A precursor turbulent boundary layer simulation was performed at first to generate quality inflow condition, followed by the main jet in cross-flow computation. The jet to cross-flow velocity ratios of 0.5 and 1.5 are considered and the statistics results are compared with the available experimental data. It was found that while at high velocity ratio of 1.5, simulation result has shown good agreement with the test data, it under-predicts at low velocity ratio of 0.5. The discrepancy is probably due to the Reynolds number effect, for which a factor of 4.7 exists between the simulations and the experiments. Further researches at higher Reynolds number are desirable.
AB - Numerical study has been carried out to investigate a square laminar jet interacting with a fully-developed turbulent cross-flow. A direct numerical simulation code SBLI was used and the simulation Reynolds number is 1000, based on the free-stream quantities and the jet exit width. A precursor turbulent boundary layer simulation was performed at first to generate quality inflow condition, followed by the main jet in cross-flow computation. The jet to cross-flow velocity ratios of 0.5 and 1.5 are considered and the statistics results are compared with the available experimental data. It was found that while at high velocity ratio of 1.5, simulation result has shown good agreement with the test data, it under-predicts at low velocity ratio of 0.5. The discrepancy is probably due to the Reynolds number effect, for which a factor of 4.7 exists between the simulations and the experiments. Further researches at higher Reynolds number are desirable.
KW - Mechanical, aeronautical and manufacturing engineering
U2 - 10.1615/ICHMT.2009.TurbulHeatMassTransf.750
DO - 10.1615/ICHMT.2009.TurbulHeatMassTransf.750
M3 - Conference contribution
VL - 6
T3 - Proceedings of the International Symposium On Turbulence, Heat and Mass Transfer
BT - Turbulence, heat and mass transfer
PB - Begell House
T2 - Sixth International Symposium On Turbulence, Heat and Mass Transfer
Y2 - 14 September 2009 through 18 September 2009
ER -