Numerical simulation of spatially-evolving instability control in plane channel flowThe applicability of active control by periodic suction-blowing in spatially evolving plane Poiseuille flow is investigated by the direct simulations of the two-dimensional, incompressible Navier-Stokes equations. All the computations were performed for Reynolds number (Re = 7500) which is linearly unstable for this flow. The result reveal that significant reductions in perturbation amplitudes can be obtained by a proper choice of the control wave amplitude and phase even for large disturbance amplitudes. The upstream influence of the control wave is also investigated.
Document ID
19900051620
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Danabasoglu, G. (Colorado Univ. Boulder, CO, United States)
Biringen, S. (Colorado, University Boulder, United States)
Streett, C. L. (NASA Langley Research Center Hampton, VA, United States)