Experimental Verification of the Method and Code for Calculating Low-Frequency Fluctuations at the Jet Boundary of a Full-Scale Subsonic Looped Type Wind Tunnel
摘要
Abstract
The results of computational and experimental sets, where low-frequency pulsations of the total pressure in the jet obtained by various methods are studied and compared, are presented. The calculation is performed by the LES (IDDES) method using the EWT-TSAGI code. The experiment is performed using pressure gauges, as well as ICD-100 and Kulite sensors. The flow is visualized. It is shown that the calculated and experimental data are in acceptable agreement with each other in all areas, except for the outer boundary of the jet, where the calculation grid has insufficient condensation.