Open AccessEFFECT OF THE FLOW FIELD DEFORMATION IN THE WIND TUNNEL ON THE AERODYNAMIC COEFFICIENTS
Author(s) -
Dušan Maturkanič
Publication year - 2015
Publication title -
acta polytechnica
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.207
H-Index - 15
eISSN - 1805-2363
pISSN - 1210-2709
DOI - 10.14311/ap.2015.55.0177
Subject(s) - wind tunnel , aerodynamics , hypersonic wind tunnel , flow (mathematics) , field (mathematics) , deformation (meteorology) , mechanics , rotation (mathematics) , supersonic wind tunnel , airflow , geotechnical engineering , structural engineering , engineering , meteorology , physics , mechanical engineering , geometry , mathematics , pure mathematics
The flow field quality has a principal signification at wind tunnel measurement. The creation of the flow field of air by fan leads to the rotation of entire flow field which is, moreover, deformed at the bends of the wind tunnel with close circulation. Despite the wind tunnels are equipped with the devices which eliminate these non-uniformities, in the most of cases, the air flow field has not ideal parameters in the test section. For the evaluation of the measured results of the model in the wind tunnel, the character of flow field deformation is necessary. The following text describes the possible general forms of the flow field nonuniformity and their effect on the aerodynamic coefficients calculation.