Title :
Influence of Discharge Energy on Plasma Jet Propagation in Air
Author :
Zhang Qi ; Yu Yonggang ; Lu Xin ; Liu Dongyao
Author_Institution :
Sch. of Power Eng., Nanjing Univ. of Sci. & Technol., Nanjing, China
Abstract :
In order to understand the ignition properties of plasma jet, a simulation experiment has been conducted, to explore the characterization of plasma jet propagation in air under different discharge energy. Based on the experiment, a two-dimensional-axisymmetric mathematical model was developed, and the Fluent software was used to simulate the unsteady plasma jet propagation in air. The influence of discharge energy on plasma jet propagation in air was studied by changing total pressure of plasma nozzle. The results indicate that: the pressure, temperature and velocity in the plasma jet flow field are of strong vibration, temporally. As the axial displacement far away from the nozzle, the influence of discharge energy on pressure, temperature and velocity of plasma jet become less. The change of discharge energy has some effect on the surface wave and entrainment phenomena which happened when the plasma jet into air.
Keywords :
air; discharges (electric); nozzles; plasma instability; plasma jets; plasma pressure; plasma simulation; plasma temperature; plasma transport processes; air; axial displacement; discharge energy; entrainment phenomena; fluent software; plasma jet flow; plasma jet propagation; plasma nozzle; surface wave; vibrations; Atmospheric modeling; Discharges; Mathematical model; Plasma temperature; Propulsion; Surface discharges;
Conference_Titel :
E-Product E-Service and E-Entertainment (ICEEE), 2010 International Conference on
Conference_Location :
Henan
Print_ISBN :
978-1-4244-7159-1
DOI :
10.1109/ICEEE.2010.5661262
