TY - GEN
T1 - Direct numerical simulation of turbulent boundary layer downstream of turbulence - Generating grid
AU - Suzuki, H.
AU - Nagata, K.
AU - Sakai, Y.
AU - Hayase, T.
AU - Kubo, T.
PY - 2007
Y1 - 2007
N2 - The effects of external grid turbulence in a free stream on the turbulent boundary layer are investigated by means of the direct numerical simulation (DNS). A square turbulencegenerating grid, on which the velocity components are set to zero, is located upstream of the flat boundary with a nonslip condition. The fractional step method is used to solve the governing equations. The results show that turbulence intensities and Reynolds stress normalized by the inner parameters are significantly suppressed in the log-law region by the external grid turbulence.
AB - The effects of external grid turbulence in a free stream on the turbulent boundary layer are investigated by means of the direct numerical simulation (DNS). A square turbulencegenerating grid, on which the velocity components are set to zero, is located upstream of the flat boundary with a nonslip condition. The fractional step method is used to solve the governing equations. The results show that turbulence intensities and Reynolds stress normalized by the inner parameters are significantly suppressed in the log-law region by the external grid turbulence.
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U2 - 10.1115/FEDSM2007-37433
DO - 10.1115/FEDSM2007-37433
M3 - Conference contribution
AN - SCOPUS:40449119679
SN - 0791842886
SN - 9780791842881
T3 - 2007 Proceedings of the 5th Joint ASME/JSME Fluids Engineering Summer Conference, FEDSM 2007
SP - 1407
EP - 1412
BT - 2007 Proceedings of the 5th Joint ASME/JSME Fluids Engineering Summer Conference, FEDSM 2007
T2 - 2007 5th Joint ASME/JSME Fluids Engineering Summer Conference, FEDSM 2007
Y2 - 30 July 2007 through 2 August 2007
ER -