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

  • 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