RANS simulation is the industrial workhorse for predicting 
turbomachinery flows. However, due to the errors and 
uncertainties involved in the experiments and CFD models, 
users can occasionally find inconsistency and deficiency of 
RANS results, which degrades users’trust in RANS 
turbomachinery solvers. This workshop aims to improve users’ 
trust in RANS turbomachinery solvers by conducting a 
validation and verification (V&V) study on three cases: the 
TUDA-GLR-OpenStage transonic axial compressor, the BUAA low 
speed large scale axial compressor and the ETH Zurich 1.5-
stage turbine.
Built upon the experience from our previous workshops, we 
would like to launch our 3rd workshop. Three test cases are 
involved: the TUDa-GLR-OpenStage Transonic Axial Compressor, 
the BUAA Low Speed Large Scale Axial Compressor and the ETH 
Zurich 1.5-stage Turbine. The datasets of the two compressors 
are freely available to the public and can be downloaded from 
the workshop website. Accessing the datasets of the turbine 
requires attendance of the conference in 2021 or 2022 or 
registration of the upcoming conference or workshop.