Abstract
An experimental study is performed for multi-passage channel flow with the dielectric barrier discharge plasma actuator (PA). The multi-passage is a reverse flow type, and consists of the five branch channels. PA is installed on the outside wall of the inlet manifold. The Reynolds number based on the bulk velocity and channel width at the main channel is varied from 6.0×10^2 to 2.0×10^3. The wave form with voltage of 5 kV and frequency of 2.5 kHz is applied to the electrode of actuator. The wall static pressure is measured, and the pressure loss and flow rate are evaluated. The velocity profiles are measured by a PIV system to clarify change of the velocity field by on and off of PA. The pressure loss decreases and flow rate in each branch passage improves by the effect of induced flow with PA. The flow uniformity and low pressure loss are related to the reduction of the recirculation region at the manifold.
