STUDY OF UNSTEADY VORTICAL STRUCTURES IN AXISYMMETRIC HYDRODYNAMIC CHAMBER
0000-0002-9198-3705 The material was received by the Editorial Board: 18.09.2013
The paper is devoted to experimental and numerical investigation of unsteady vortical processes in the isothermal model of axisymmetric vortex burner. Obtained characteristics of precessing vortex core (PVC) show the dependences of PVC`s frequency on flowrate, swirl number and nozzle`s diameter. Pressure drops inside the chamber also have been measured. Laser Doppler Anemometer (LDA) has been used to explore spatial distribution of mean axial velocity. Numerical simulation has been carried out by using computational fluid dynamic (CFD) program Adapco Star-CCM+. Detached Eddy Simulation approach and Spalart-Allmaras model have been used for calculating the flow. Results of comparison of experimental and numerical data have shown validity of used numerical method. Combination of experimental and mathematical modeling gives the possibility of obtaining detailed information representing comprehensive description of spatially complex unsteady flow with the PVC.Keywords:
vortex, turbulence, processing vortex core, vortex breakdown, detached eddy simulation
УДК 532.5
STUDY OF UNSTEADY VORTICAL STRUCTURES IN AXISYMMETRIC HYDRODYNAMIC CHAMBER References: Vinokurov A. P., Shtork S. I., Alekseenko S. V. STUDY OF UNSTEADY VORTICAL STRUCTURES IN AXISYMMETRIC HYDRODYNAMIC CHAMBER. Vestnik NSU. Series: Physics. 2013, vol. 8, no. 4. P. 76–83 (in Russ.). DOI: 10.54362/1818-7919-2013-8-4-76-83