Grid Dependency Study for the NASA Rotor 37 Compressor Blade

TitleGrid Dependency Study for the NASA Rotor 37 Compressor Blade
Publication TypeConference Paper
Year of Publication1997
AuthorsArnone A, Carnevale E A, Marconcini M
Conference NameASME 1997 International Gas Turbine and Aeroengine Congress and Exhibition
Volume1: Aircraft Engine; Marine; Turbomachinery; Microturbines and Small Turbomachinery
Paginationpp. V001T03A056; (9 pages)
Conference LocationOrlando, FL, USA
ISBN Number978-0-7918-7868-2
Other NumbersScopus 2-s2.0-0031360735
KeywordsGrid dependence

The NASA Rotor 37 has been computed by several authors in the last few years with relative success. The aim of this work is to present a systematic grid dependency study in order to quantify the amount of uncertainty that comes from the grid density. The computational domain is divided onto several regions (i.e. leading edge, trailing edge, shear layer ...) and for each of them, the impact of the grid density is investigated. By means of this analysis, substantial improvement has been obtained in the prediction of efficiency and exit angle. On the contrary, the improvement achieved in total pressure and total temperature ratio is less remarkable. It is believed that only after a systematic grid dependency study can the contribution of turbulence modeling, laminar-turbulent transition, and boundary conditions be analyzed with success.

Refereed DesignationRefereed