The following abstracts represent a limited selection of our technical papers. To receive a full-text version of any of these papers by mail, please contact us. The computing time and storage requirements, however, differ greatly from one computational approach to another and the resultant accuracy may well be debated. One specialist has suggested that most of the important effects in a turbomachinery blade row might be resolved using a coarse grid of only 30,000 nodes, while others insist on grids with ten times this node count.
Arguments abound concerning the use of a wall law function as an engineering expedient.
The present study draws on a set of seven different stages, for which much measured data are available, and provides answers of sufficient depth to guide engineers in the economical utilization of their CFD tools. The design and off-design performance of a radial inflow turbine has been carefully measured with both internal component and overall stage data. Observations have been made concerning instrumentation methods, appropriate correlating variables, and resultant component performance. The use of internal measurements changes the conclusions reached concerning component performance. Recommendations for further analysis are given.