[{"type":"speech","title":"Development of a hybrid PIC\/DSMC code","issued":{"date-parts":[["2005"]]},"author":[{"family":"Auweter-Kurtz","given":"M."},{"family":"Fertig","given":"M."},{"family":"Petkow","given":"D."},{"family":"Stindl","given":"T."},{"family":"Quandt","given":"M."},{"family":"Munz","given":"C. D."},{"family":"Adamidis","given":"P."},{"family":"Resch","given":"M."},{"family":"Roller","given":"S."},{"family":"D'Andrea","given":"D."},{"family":"Schneider","given":"R."}],"note":"29th Internat.Electric Propulsion Conf.(IEPC), Princeton, N.J., October 31 - November 3, 2005 Madison, Wis. : Omnipress, 2005 CD-ROM","abstract":"'HYHORSPHQW RI D K\\EULG 3,&'60& &RGH\nWithin the small satellite program of the Institute of Space Systems (IRS) of the University of\nStuttgart a lunar satellite is under development. The satellite will be equipped with two\nelectric propulsion systems. The main propulsion system will consist of four Lnstationary\nPagnetoSlasmaGynamic (IMPD) thrusters, which are also known as pulsed plasma thrusters\n(PPT). The duration of a single pulse is of the order of 10 \u00b5s. The current of about 30 kA\nallows acceleration of the propellant mass bit leading to exit velocities of about 14 km\/s, i.e. a\nspecific impulse of approximately 1400 s. [4] Due to the instationary operation and the degree\nof rarefaction, no continuous partition function of the propelling plasma is to be expected.\nIn order to model the thrust of such an IMPD thruster, a cooperation between IRS, IAG\n(Institute for Aerodynamics and Gas Dynamics, University of Stuttgart), HLRS (High\nPerformance Computing Center Stuttgart) and IHM (Institute for High Power and Microwave\nTechniques, Research Center Karlsruhe) has been formed. Within the project \"Modelling and\nSimulation on High Performance Computers\", which is funded by the federal state BadenW\u00fcrttemberg, a hybrid PIC\/DSMC (Particle in Cell\/Direct Simulation Monte Carlo) scheme\nwill be developed within two years.\nIn order to model the physics, the PIC scheme developed by IHM [2, 3] will be extended by\nmodels for intermolecular collisions used in the DSMC code LasVegas [1]. Within the PIC\ncode the Vlasov-Maxwell equations are solved in order to describe the interaction between\ncharged particles and electromagnetic fields. The DSMC method models the exchange of\nmomentum and energy as well as chemical reactions neglecting Lorentz forces. It is expected\nthat the coupling of both methods will allow for the modeling of losses within IMPD thrusters\ndue to incomplete ionization of the propellant. The necessity of a three dimensional\ndescription requires optimization and parallelization of the code in order to effectively use\nhigh performance computers.\nIn the paper the current state of development after approximately one year of development\nwill be described and preliminary results will be discussed.\n[1]\n[2]\nA Finite-Volume Particle-in-Cell Method for the Numerical Treatment of the MaxwellLorentz Equations on Boundary-Fitted Meshes, Int. J. Numer. Meth. Engng.,Vol. 44, pp.\n461-487, 1999.\n[3]\nMunz, C.D., Schneider, R., Vo\u00df, U.: A Finite-Volume Particle-in-Cell Method for the\nNumerical Simulation of Devices in Pulsed Power Technology, Surv. Math. Ind., 1999.\n[4]\n3ULPDU\\\n3URSXOVLRQ\nDQG\n$WWLWXGH\n&RQWURO\n3XOVHG 3ODVPD 7KUXVWHUV IRU\n6PDOO\n$OO\nInternational Space Propulsion Conference, Sardinia, Italy, 2004.\n(OHFWULFDO\n6DWHOOLWH\n,","kit-publication-id":"240061106"}]