A Web-Services accessible database for channel flow turbulence at $Re_\tau$=1000

ORAL

Abstract

In this presentation we describe a new public database archiving a DNS data set of the space-time evolution of fully developed channel flow at $Re_\tau = 1000$. The database will contain data from a DNS of channel flow with domain-size of $8\pi \times 2 \times 3\pi$, at the resolution of 2048$\times$512$\times$1536, with 2048 time-frames of velocity and pressure fields spanning about a flow-through time scale. After simulation, the data are ingested into the database cluster using a space-filling Morton-curve to index the computational space uniformly, and also to organize data partition and distribution. The database system allows users access and to process the data remotely through an interface based on the Web-Service model. Users are thus able to perform numerical experiments on the high-resolution DNS data using least capable desktop computers. Test calculations are performed to illustrate the usage of the system and to verify the correctness of the data. Construction of the database also involves developments of MPI-DB, a new tool to facilitate coupling of parallel simulations and databases.

Authors

  • J. Graham

    Johns Hopkins University

  • K. Kanov

    Johns Hopkins University

  • E. Givelberg

    Johns Hopkins University

  • R. Burns

    Johns Hopkins University

  • Gregory Eyink

    Johns Hopkins University, The Johns Hopkins University

  • A. Szalay

    Johns Hopkins University

  • Charles Meneveau

    Johns Hopkins University, Department of Mechanical Engineering, Johns Hopkins University

  • M.K. Lee

    University of Texas

  • N. Malaya

    University of Texas

  • Robert Moser

    The University of Texas at Austin, University of Texas at Austin, University of Texas, University of Texas Austin