The JMC actuators need a monopole and a dipole radiator. The planar monopole and dipole source types and their source strengths, especially to be applied to the JMC method, are defined with the uniform flow present. They depend on the Mach number of the flow. JMC based unidirectional two-element source configuration in a duct is introduced in the case of uni-form axial flow. The elements produce both the monopole and dipole parts of radiation. The solution can be realized with no inter-channel delays, even in the case of flow, which is advantageous in the practical implementation of digital control systems.
|Title of host publication||Internoise 2001: Proceedings of the 2001 International Congress and Exhibition on Noise Control Engineering|
|Publisher||Institute of Noise Control Engineering|
|ISBN (Print)||90-806554-3-0, 90-806554-2-2|
|Publication status||Published - 2001|
|MoE publication type||B3 Non-refereed article in conference proceedings|
|Event||International Congress and Exhibition on Noise Control Engineering, Inter-Noise 2001 - The Hague, Netherlands|
Duration: 27 Aug 2001 → 30 Aug 2001
|Conference||International Congress and Exhibition on Noise Control Engineering, Inter-Noise 2001|
|Period||27/08/01 → 30/08/01|
Uosukainen, S. (2001). Unidirectional JMC actuators in the active attenuation of noise in ducts with uniform axial flow. In Internoise 2001: Proceedings of the 2001 International Congress and Exhibition on Noise Control Engineering (pp. 629-634). Institute of Noise Control Engineering.