Comparison of a Separated Flow Response to Localized and Global type Disturbances
Comparison of a Separated Flow Response to Localized and Global type Disturbances
Monnier, B.; Williams, D.; Weier, T.; Albrecht, T.
POD modes and coefficients obtained from an inclined flat plate with Lorentz force actuator are compared to that of a pitching wing model (NACA 0009). The pitching wing model emulates an impulsive disturbance by pitching from 15 deg to 17 deg and then back to 15 deg in a very short time interval. There is also a negative pitching case, 15 deg to 13 then back to 15 deg. The Lorentz force actuator produced a spatially localized disturbance, whereas the pitching wing produces a spatially global disturbance. We found very close similarities in the POD modes and the time-varying coefficients. We also found that POD mode 2 tracks the negative of the lift force in both cases.
Keywords: active flow control; Lorentz force; pitching wing
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Lecture (Conference)
53rd AIAA Aerospace Sciences Meeting, 05.-09.01.2015, Kissimmee , Florida, USA -
Contribution to proceedings
53rd AIAA Aerospace Sciences Meeting, 05.-09.01.2015, Kissimmee, Florida, USA
AIAA papers
DOI: 10.2514/6.2015-1056
Cited 1 times in Scopus
Permalink: https://www.hzdr.de/publications/Publ-21491
Publ.-Id: 21491