Modeling of flow in hot-shot wind tunnel IT-302M

• Main Authors: Kutepova, A. I., Sidorenko, A. A., Gromyko, Yu. V.
• Format: Conference Proceeding
• Language: English
• Subjects: Boundary conditions; Computer simulation; Heat exchange; Initial conditions; Nozzles; Throttling; Wind tunnels
• ISSN: 0094-243X; 1551-7616
• DOI: 10.1063/1.5065343

The flow in a virtual wind tunnel with a geometry corresponding to the actual IT-302M hot-shot wind tunnel was considered. CFD simulations were made for the initial conditions taken from the experiment. The process of gas throttling between the first and second prechambers, the heat exchange of the gas with the wall, and the process of the wind tunnel start were studied in a nonstationary approach. The comparison is made with the experimental flow parameters measured in the first and second prechambers as well as with PIV velocity measurements at the nozzle exit. It is shown that the calculated results obtained have good convergence with the experimental data; the flow model from a closed volume through a porous insert simulates the start-up process of the IT-302M installation with good accuracy; the boundary condition in the form of a constant temperature makes it possible to obtain data close to the results of solving the conjugate heat transfer problem.