Turbulence simulation in tube bundle geometries using the Dynamic subgrid-scale model

摘要

The dynamic subgrid-scale (DSGS) closure model is used in a large eddy simulation computer program for incompressible isothermal flows. One of the advantages of the DSGS model is the exclusion of a model coeffi- cient. This model coefficient is evaluated dynamically at each nodal location for a given time step by filtering op- erations on the grid level and a test filter level. A non- staggered array tube bundle geometry arrangement is considered in doubly periodic boundary conditions for two-dimensional simulations at high Reynolds number.