Systematic derivation of jump conditions for the immersed interface method in three-dimensional flow simulation. (English) Zbl 1136.76346
Summary: In this paper, we systematically derive jump conditions for the immersed interface method [R. J. Leveque and Z. Li, SIAM J. Numer. Anal. 31, No. 4, 1019–1044 (1994; Zbl 0811.65083); SIAM J. Sci. Comput. 18, No. 3, 709–735 (1997; Zbl 0879.76061)] to simulate three-dimensional incompressible viscous flows subject to moving surfaces. The surfaces are represented as singular forces in the Navier–Stokes equations, which give rise to discontinuities of flow quantities. The principal jump conditions across a closed surface of the velocity, the pressure, and their normal derivatives have been derived by M.-C. Lai and Zh. Li [Appl. Math. Lett. 14, No. 2, 149–154 (2001; Zbl 1013.76021)]. In this paper, we first extend their derivation to generalized surface parametrization. Starting from the principal jump conditions, we then derive the jump conditions of all first-, second-, and third-order spatial derivatives of the velocity and the pressure. We also derive the jump conditions of first- and second-order temporal derivatives of the velocity. Using these jump conditions, the immersed interface method is applicable to the simulation of three-dimensional incompressible viscous flows subject to moving surfaces, where near the surfaces the first- and second-order spatial derivatives of the velocity and the pressure can be discretized with, respectively, third- and second-order accuracy, and the first-order temporal derivatives of the velocity can be discretized with second-order accuracy.
MSC:
76D05 | Navier-Stokes equations for incompressible viscous fluids |
76M20 | Finite difference methods applied to problems in fluid mechanics |
65M06 | Finite difference methods for initial value and initial-boundary value problems involving PDEs |