ESR10: Tech­n­ical Uni­vers­ity of Darmstadt (TUD), Ger­many

Simula­tion of de­bris flow with mix­ture theo­ry and CFD

Super­visor: Prof. Yong-qi Wang

Ob­jec­tive: CFD simula­tion based on mix­ture theo­ry

Met­hodology: Since most software in prac­tice is still based on shal­low water equa­tion and single phase mode, the CFD simula­tions in the WP will bring sig­nificant im­prove­ment to these ex­ist­ing codes. Ef­ficient and robust numer­ical schemes will be wor­ked out to deal with the strong­ly con­vec­tive hy­per­bolic equa­tions, par­ticular­ly when large gradients of the phys­ical vari­ables occur, e.g. for a mov­ing front. The de­bris materi­als will be model­led by mix­ture theo­ry to take the multi­phase pro­per­ty into ac­count. The numer­ical re­sults will be com­pared with the PFEM and the DEM simula­tions in Task 3.1 and 3.2. Moreov­er, the CFD simula­tions will be validated by the case stud­ies in WP4 in order to bring sub­stan­ti­al im­prove­ment to the codes used by the stakehold­ers.

De­liver­able: CFD simula­tion on de­bris materi­al based on mix­ture theo­ry, Com­parison to PFEM and DEM simula­tions, Valida­tion by case stud­ies;

Second­ments: BFW: 6 p-ms (pract­ise code im­prove­ment), GEOB (pro­tec­tion sys­tems)