Library Subscription: Guest
Home Begell Digital Library eBooks Journals References & Proceedings Research Collections
TsAGI Science Journal

ISSN Print: 1948-2590
ISSN Online: 1948-2604

TsAGI Science Journal

DOI: 10.1615/TsAGISciJ.2011004142
pages 445-465

NUMERICAL MODELING OF THREE-DIMENSIONAL FLOWS OF VISCOUS GAS IN NOZZLES

Anatoliy Pavlovich Mazurov
Central Aerohydrodynamic Institute (TsAGI), Zhukovsky str. 1, Zhukovsky, 140180, Russia

ABSTRACT

A technique for numerical modeling of turbulent gas flows in three-dimensional nozzles of an arbitrary shape is developed on the basis of the Reynolds-averaged Navier-Stokes equations written in thin-layer approximation relative to curvilinear coordinates. A two-parameter κ − ε turbulence model, taking into account the wall effect, is employed for computation of the turbulent viscosity. Numerical integrating of motion equations is performed using an implicit difference scheme of the third-order approximation of convection terms. Examples of computations of flow fields in three-dimensional nozzles with different cross-sectional shapes (circular, rectangular, and triangular) are presented. Results of numerical computations are compared with experimental data.