MATHEMATICAL SIMULATION OF ACOUSTIC AND GAS-DYNAMICAL PROCESSES IN THE CHANNEL OF AN ACOUSTOCONVECTIVE DRYER

摘要

This paper presents and analyzes the data of numerical simulation of nonstationary flow in the channel of an acoustoconvective dryer in which the acoustic field is produced by a Hartmann generator. The gas-dynamical flow field and frequency characteristics of the problem are calculated in axisymmetric and three-dimensional formulations. The jet outflowing from the generator nozzle with change in the resonator length and in the jet pressure ratio was investigated parametrically. The results of numerical calculations are compared with experimental data.