A　numerical　study　is　conducted　to　investigate　the　filling　process　of　a　specified　cryogenic　tank.　The　chill-down　behavior　of　the　tank　is　analyzed　by　a　computational　fluid　dynamics　method　considering　the　effect　of　the　inflow　rate　and　the　state　of　the　fill　substance.　In　addition,　the　transient　thermal　stress　within　the　tank　wall　during　filling　processes　is　analyzed　using　the　finite　element　method.　Numerical　results　show　that　the　thermal　stress　is　dominated　by　restricting　conditions　as　well　as　the　temperature　distribution,　which　is　controlled　by　the　fluid　field　and　heat　transfer　types　within　the　tank.　(C)　2015　The　Authors.　Published　by　Elsevier　B.V.　This　is　an　open　access　article　under　the　CC　BY-NC-ND　license.