Rouhallah Khoshkhoo, Mahmood Adami, Ahmad Sedaghat, NUMERICAL SIMULATION OF ARGON FLOWS IN CYLINDRICAL SELF-FIELD MPD THRUSTERS, 59th IAC Congress, Glasgow, Scotland 29 September – 3 October, 2008.
NUMERICAL SIMULATION OF ARGON FLOWS IN CYLINDRICAL SELF-FIELD MPD THRUSTERS
Rouhallah khoshkhoo, Research Assistant
Department of Mechanical &Aerospace Engineering, MUT, Tehran, Iran
Mahmood Adami, Associate Professor
Department of Mechanical & Aerospace Engineering, MUT, Tehran, Iran
Ahmad Sedaghat, Assistant Professor
Department of Mechanical Engineering, Isfahan University of Technology,
Isfahan 84156-83111, Iran
In this paper, the argon flow in an induced magneto plasma dynamics (MPD) thruster is studied. The governing magneto hydrodynamic (MHD) equations are solved for the fully ionized gas with an entrance Mach number of 2 and Reynolds number of 270 within two coaxial circular cylinders of the thruster. The compressible fluid flow Navier-Stokes equations are discretised and solved using a finite difference, high resolution, and total variation diminishing (TVD) scheme. The induced magnetic equations are solved simultaneously using a successive over relaxation (SOR) method. Numerical results are presented for a mass flow rate of 2.25 and the electrical currents of 4 to 7 kA for the argon flow and the interactions between fluid flow and magnetic field are parametrically studied. It is observed that thrust increases by increasing the magnetic field intensity. Furthermore, the maximum values of thrust, velocity, and temperature are occurred close to the anode in three quarter distance from the cathode at exit.