Report Initial Work on Developing Plasma Modeling Capability in WARP for NDCX Experiments

Friedman, A ; Cohen, R H ; Grote, D P ; Vay, J

关键词: ELECTRON DRIFT;    ELECTRONS;    ELECTROSTATICS;    EXCITATION;    HEAVY IONS;    PLANNING;    PLASMA;    SIMULATION;    TESTING;   

DOI  :  10.2172/924014
RP-ID  :  UCRL-TR-237325
PID  :  OSTI ID: 924014
Others  :  TRN: US0802238

美国|英语

来源: SciTech Connect

【 摘 要 】

This milestone has been accomplished. The Heavy Ion Fusion Science Virtual National Laboratory (HIFS-VNL) has developed and implemented an initial beam-in-plasma implicit modeling capability in Warp; has carried out tests validating the behavior of the models employed; has compared the results of electrostatic and electromagnetic models when applied to beam expansion in an NDCX-I relevant regime; has compared Warp and LSP results on a problem relevant to NDCX-I; has modeled wave excitation by a rigid beam propagating through plasma; and has implemented and begun testing a more advanced implicit method that correctly captures electron drift motion even when timesteps too large to resolve the electron gyro-period are employed. The HIFS-VNL is well on its way toward having a state-of-the-art source-to-target simulation capability that will enable more effective support of ongoing experiments in the NDCX series and allow more confident planning for future ones.