------------------------------------------------------------------------ ------------------------------------------------------------------------ STATISTICS FROM DNS OF TURBULENT CHANNEL FLOW IN VERY LARGE NUMERICAL BOXES Re_tau = 180-550-950-2000-5000 ------------------------------------------------------------------------ http://turbulence.ices.utexas.edu THIS SITE HOSTED IN THE UNITED STATES, NORTH AMERICA A COLLABORATION WITH SPAIN, EUROPE MIRROR http://torroja.dmt.upm.es/ ------------------------------------------------------------------------ References: Sergio Hoyas and Javier Jimenez, (2006) "Scaling of velocity fluctuations in turbulent channels up to $Re_{\tau} = 2000$", Phys. of Fluids, vol 18, 011702. ------------------------------------------------------------ Juan C. del Alamo, Javier Jimenez, Paulo Zandonade and Robert D. Moser (2004) "Scaling of the energy spectra of turbulent channels", J. Fluid Mech. vol 500, pp 135-144. ------------------------------------------------------------ Juan C. del Alamo and Javier Jimenez (2003) "Spectra of the very large anisotropic scales in turbulent channels", Phys. Fluids Vol. 15 No. 6, pp L41-L44. ------------------------------------------------------------ Juan C. del Alamo and Javier Jimenez (2001) "Direct numerical simulation of the very large anisotropic scales in a turbulent channel", Center for Turbulence Research Annual Research Briefs. Stanford University, pp. 329-341 ------------------------------------------------------------------------ Contents: fields --> Sample fields stored in the original omega_y-phi form. See the README.txt file for the file format. statistics --> Standard average profiles in wall-units, energy balances, and 1D spectra. See the README.txt file of each directory for further details. spectra --> 2D energy and enstrophy spectra, and 2D uv-cospectra as functions of streamwise and spanwise wavenumbers, and of wall-distance. See the README.txt file for the file format. ------------------------------------------------------------------------ Numerical parameters needed for non-dimensionalization of spectra and fields: channel 1/nu Lx/pi Lz/pi utau 180 0.32500000E+04 12 4 0.57231059E-01 550 0.11180000E+05 8 3 0.48904658E-01 950 0.20580000E+05 8 3 0.45390026E-01 2000 0.48500000E+05 8 3 0.41302030E-01 5200 0.12500000E+06 8 3 0.4160 E-01 (Mass Flux = 1.0) ------------------------------------------------------------------------ nick@ices.utexas.edu sergio@torroja.dmt.upm.es jimenez@torroja.dmt.upm.es