2012/04/26 by Sergey Kamenshchikov, Kamenshchikov, Sergey
Engineering · Physics and Astronomy · #Chaotic Dynamics (nlin.CD) #FOS: Physical sciences #Fluid Dynamics and Turbulent Flows #nlin.CD
paper · pdf · doi:10.48550/arxiv.1204.6637
This paper has been withdrawn by the author due to the model modification
openalex publication_date 2012/04/26 · arxiv created 2014/01/24 · arxiv updated 2014/01/27 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28
Discharge source is considered as modifier of flow hydrodynamic spectrum. Characteristic frequency of nonlinear spectrum and spectrum power were determined under conditions of arc sliding discharge in supersonic flow. Two stages of discharge were defined: sliding stage and still stage. It was found that stage transition occurs due to convective instability of discharge. Fraction of sliding stage in overall discharge duration is determined by averaged current that is general stable discharge parameter. This phenomenon gives opportunity to control power of pressure fluctuations spectrum. Theoretical insight of field and hydrodynamic factors influencing on pulsations frequency was achieved. Hydrodynamic resistance of discharge region and holding cathode electric field turned out to be basic factors of frequency modification. Corresponding experimental verification was taken. Basic frequency law was determined for several discharge regimes.