On technology of large-scale CFD simulations

The paper is devoted to a technology of large-scale CFD simulations on supercomputers using finite-volume or finite-difference methods. Problems under consideration include optimal choice of domain geometry, minimization of disk space usage, choice of optimal multilevel parallel model configuration, etc. Attention is paid on the efficiency of computations on supercomputers taking into account queue system waiting time and limitations; on the reliability of computations, avoiding crashes of a simulation, automatic correction and optimization of simulation parameters, etc. Ways to improve quality of averaged fields and spectra data are presented.