A front-tracking method for viscous, incompressible, multi-fluid flows
Journal of Computational Physics
Analysis of a one-dimensional model for the immersed boundary method
SIAM Journal on Numerical Analysis
A level set approach for computing solutions to incompressible two-phase flow
Journal of Computational Physics
Numerical solution of the high frequency asymptotic expansion for the scalar wave equation
Journal of Computational Physics
A variational level set approach to multiphase motion
Journal of Computational Physics
Journal of Computational Physics
A hybrid method for moving interface problems with application to the Hele-Shaw flow
Journal of Computational Physics
A PDE-based fast local level set method
Journal of Computational Physics
A boundary condition capturing method for Poisson's equation on irregular domains
Journal of Computational Physics
High-frequency wave propagation by the segment projection method
Journal of Computational Physics
Geometric optics in a phase-space-based level set and Eulerian framework
Journal of Computational Physics
Construction of Shapes Arising from the Minkowski Problem Using a Level Set Approach
Journal of Scientific Computing
Regularization Techniques for Numerical Approximation of PDEs with Singularities
Journal of Scientific Computing
Numerical approximations of singular source terms in differential equations
Journal of Computational Physics
Discretization of Dirac delta functions in level set methods
Journal of Computational Physics
The numerical approximation of a delta function with application to level set methods
Journal of Computational Physics
Journal of Computational Physics
Journal of Computational Physics
Journal of Computational Physics
Two methods for discretizing a delta function supported on a level set
Journal of Computational Physics
Journal of Scientific Computing
Computing multivalued physical observables for the semiclassical limit of the Schrödinger equation
Journal of Computational Physics
Journal of Computational Physics
A convergence rate theorem for finite difference approximations to delta functions
Journal of Computational Physics
High order numerical methods to two dimensional delta function integrals in level set methods
Journal of Computational Physics
High Order Numerical Methods to Three Dimensional Delta Function Integrals in Level Set Methods
SIAM Journal on Scientific Computing
A Hybrid Phase Flow Method for Solving the Liouville Equation in a Bounded Domain
SIAM Journal on Numerical Analysis
Hi-index | 31.46 |
We study second to fourth order numerical methods to a type of delta function integrals in one to three dimensions. These delta function integrals arise from recent efficient level set methods for computing the multivalued solutions of nonlinear PDEs. We show that the natural quadrature approach with usual discrete delta functions and support size formulas to the two dimensional delta function integrals suffer from nonconvergence. We then design high order numerical methods to this type of delta function integrals based on interpolation approach. Numerical examples are presented to verify the efficiency and accuracy of our methods.