Author/Authors :
Filippova، نويسنده , , Olga and Succi، نويسنده , , Sauro and Mazzocco، نويسنده , , Francesco and Arrighetti، نويسنده , , Cinzio and Bella، نويسنده , , Gino and Hنnel، نويسنده , , Dieter، نويسنده ,
Abstract :
The viability of multiscale lattice Boltzmann schemes for the numerical simulation of turbulent flows is discussed and numerically demonstrated for turboaxial machine applications. The extension of boundary-fitting formulas based on wall functions is proposed, which enables the efficient computation of turbulent flows in complex curvilinear geometry using a simple Cartesian grid. Examples of two-dimensional turbulent flows in an axial compressor cascade are presented.
