Analysis on stability margin of nb3sn cableinconduitconductor

The stability margin of NbjSu CableinCouduit Conductor(CICC) has been analyzed by n mi merk,il model. The numerical code is based on the finite volume method to discrcti/e the onedimensional conservation equations on the staggered nit.sli. The algebraic method is used to t nuis form the n onuniform mesli in the physical plune to the uniform mesh in tho odmputatiimul plan«. The numerical simulation shuws tbnt the foster siipercriticnl helium muss flow rate can improve the stability,ind increase the limiting current. The stability und limiting current are decreased with the increasing the operating temperature and hackgronnd field. The shorter disturbance duration time allows the higher stability in the wellcooled region and the lower stability in the illcooled region.