A numerical simulation of surface relief changing for polycrystals under ion-plasma flow irradiation

Аuthors

Abgarian V. K.^*, Abgarian K. К.^**, Ryzhov Y. A.

Moscow Aviation Institute (National Research University), 4, Volokolamskoe shosse, Moscow, А-80, GSP-3, 125993, Russia

*e-mail: vka.mai@mail.ru
**e-mail: kristal83@mail.ru

Abstract

A numerical simulation is discussed as applies to surface relief changing for polycrystals under ion-plasma flow irradiation. A mathematical model is suggested basing on a transition to curvilinear spherical geometry to generate needed computational scheme. The purpose of the transition consists in computational area closure on itself. This approach allows us to eliminate determination problem for boundary conditions. The proposed «closure of boundaries» technique could be applied for arbitrary N-dimensional computational area.

Keywords:

numerical simulation; ion sputtering; polycrystal surface; boundary conditions; computational domain