Application of Deterministic Correlations in the Analysis of Rotor-Stator Interactions in Axial Flow Fans

摘要: Deterministic stresses account for the time-averaged contribution of periodic unsteadiness in single-stage turbomachinery. An accurate modelling these allows development steady simulations with full deterministic unsteady sources. Moreover, introducing both relative and absolute reference frames, tensor can be split into a set correlations which addresses influence stator rotor non-uniformities separately. As consequence, pure term showing rotor-stator interaction is rediscovered established as an essential indicator strength viscous, non-linear effects multistage turbomachinery environments.This work provides comprehensive description interrow region single stage axial flow fan. Two configurations are analyzed here: upstream acting non-uniform inflow complementary placed downstream pressure recovery at exit. To illustrate driven mechanisms tensor, three-dimensional numerical simulation midspan section low-speed fan employed present investigation. A deep analysis between rows using framework shown useful tool to devise models computations.The commercial code FLUENT used resolve 3-D Navier-Stokes equations LES schemes. Nominal off-design conditions have been considered observe relevance different establishment sources.The final objective pursues understanding behavior under variable configurations. Thus, physical insight will gained more efficient reliable could proposed, available researchers experts field.Copyright © 2012 by ASME