Experimental investigation of co-flow jet’s airfoil flow control by hot wire anemometer
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Date
Authors
Bahrami, A.
Hoseinzadeh, Siamak
Heyns, P.S. (Philippus Stephanus)
Mirhosseini, S.M.
Journal Title
Journal ISSN
Volume Title
Publisher
American Institute of Physics
Abstract
An experimental flow control technique is given in this paper to study the jet effect on the coflow jet’s airfoil with injection and suction and
compared with the jet-off condition. The airfoil is CFJ0025-065-196, and the Reynolds number based on the airfoil’s chord length is 105. To
measure the turbulence components of flow, a hot wire anemometry apparatus in a wind tunnel has been used. In this paper, the effect of the
average velocity and boundary layer thickness on the coflow jet’s airfoil is analyzed. The test is done for two different coflow velocities and for
different angles of attack. It is also shown that, by increasing the velocity difference between the jet and the main flow, separation is delayed,
and this delay can be preserved by raising coflow velocity at higher angles of attack. So, this flow control method has a good efficiency, and it
is possible to reach higher numbers of lift and lower numbers of drag coefficients.
Description
Keywords
Co-flow jet's airfoil, Flow control, Hot wire anemometer
Sustainable Development Goals
Citation
Bahrami, A., Hoseinzadeh, S., Heyns, P.S. et al. 2019, 'Experimental investigation of co-flow jet's airfoil flow control by hot wire anemometer', Review of Scientific Instruments, vol. 90, art.125107; DOI: 10.1063/1.5113592.