TY - JOUR
T1 - Flow control of extreme pressure loads associated with flow separation
AU - Ayed, Samah Ben
AU - Ragab, Saad A.
AU - Hajj, Muhammad R.
N1 - Publisher Copyright:
© 2015 American Society of Civil Engineers.
PY - 2016/2/1
Y1 - 2016/2/1
N2 - Active flow control is applied at different locations over a surface-mounted prism to reduce extreme pressure coefficient and loads. Different control strategies including blowing, suction, and synthetic jets are evaluated. The full unsteady Navier-Stokes equations are solved to determine the pressure coefficients. The extent of reduction when using these three strategies with different flux injections, slot locations, and angles is determined. These strategies are assessed in two flow regimes corresponding to different Reynolds numbers. It is found that for the case of R = 103, a reduction of the peak pressure, by nearly 50% is obtained. For the case of R = 104, the best reduction is about 25%.
AB - Active flow control is applied at different locations over a surface-mounted prism to reduce extreme pressure coefficient and loads. Different control strategies including blowing, suction, and synthetic jets are evaluated. The full unsteady Navier-Stokes equations are solved to determine the pressure coefficients. The extent of reduction when using these three strategies with different flux injections, slot locations, and angles is determined. These strategies are assessed in two flow regimes corresponding to different Reynolds numbers. It is found that for the case of R = 103, a reduction of the peak pressure, by nearly 50% is obtained. For the case of R = 104, the best reduction is about 25%.
KW - Blowing
KW - Extreme loads
KW - Flow control
KW - Suction
KW - Synthetic jets
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U2 - 10.1061/(ASCE)EM.1943-7889.0000973
DO - 10.1061/(ASCE)EM.1943-7889.0000973
M3 - Article
AN - SCOPUS:84978544515
SN - 0733-9399
VL - 142
JO - Journal of Engineering Mechanics
JF - Journal of Engineering Mechanics
IS - 2
M1 - 04015068
ER -