A system of fast acceleration of a mass of gas for the laboratory simulation of stellar jets

Author

Belan, Marco ; Tordella, Daniela ; De Ponte, Sergio

Author_Institution

Dip. di Ingegneria Aerospaziale, Politecnico di Milano, Milan, Italy

fYear

2001

fDate

8/1/2001 12:00:00 AM

Firstpage

409

Lastpage

416

Abstract

We describe the design of a system to bring a given mass of gas up to the temperature and pressure conditions apt to strongly expand it through de Laval nozzles generating hypersonic jets. These ones are intended to simulate in laboratory the dynamical properties of stellar jets, which are characterized by a peculiar morphology due to the interaction of the concomitant shock systems and large-scale vortices. The visualization of the field of motion will be done by means of the electron beam technique. The relevant electron gun system has been designed for this specific experiment

Keywords

Mach number; aerospace simulation; astrophysical jets; electron beam applications; flow visualisation; hypersonic flow; nozzles; vortices; Euler code calculations; Mach number; Navier-Stokes simulations; aerodynamic facilities; almost isoentropic compression; array of knot structures; concomitant shock systems; de Laval nozzles; electron beam technique; electron gun; field of motion visualization; gas expansion; gas mass fast acceleration; hypersonic jets; jet generator; laboratory simulation; large-scale vortices; local fluorescence; piston motion law; pressure conditions; star in formation; stellar jets; temperature conditions; vacuum vessel; Acceleration; Electric shock; Electron beams; Laboratories; Large-scale systems; Numerical simulation; Optical pulse generation; Pistons; Testing; Visualization;

fLanguage

English

Publisher

ieee

Conference_Titel

Instrumentation in Aerospace Simulation Facilities, 2001. 19th International Congress on ICIASF 2001

Conference_Location

Cleveland, OH

Print_ISBN

0-7803-7022-8

Type

conf

DOI

10.1109/ICIASF.2001.960276

Filename

960276