ESDU 07004:2010

PURPOSE AND SCOPE OF THIS DATA ITEM

This Data Item introduces the subject of flow in applications
where rotating machinery components induce flow rotation. There are
many examples of rotating and swirling flow in engineering such as
the flow between a stationary disc and a rotating disc, in a gas
turbine engine or turbocharger, and the flow in an annulus with a
rotating inner cylinder, between the armature and stator of an
electric motor.

The aim of this Data Item is to introduce the phenomena involved
in rotating flows and to provide the reader with guidance and
techniques for modelling specific rotating flow applications. The
flow applications considered in this Data Item relate to disc and
cylindrical geometries, i.e. rotating discs, cylinders and
cavities, predominantly in steady-state, stable flow conditions.
The correlations provided are based on analytical, experimental and
computational fluid dynamics (CFD) modelling of the flow and can be
used in parametric design studies and optimisation.

An Introduction to this Data Item is given in Section 3.