Articles with "cartesian grid" as a keyword



Unified Gas Kinetic Scheme combined with Cartesian Grid Method for Intermediate Mach Numbers

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Published in 2017 at "International Journal for Numerical Methods in Fluids"

DOI: 10.1002/fld.4393

Abstract: Summary We develop a method to seamlessly simulate flows over a wide range of Knudsen numbers past arbitrarily shaped immersed boundaries. In order to achieve seamless computation, i.e. not use any zone division to distinguish… read more here.

Keywords: continuum; cartesian grid; method; grid method ... See more keywords

Density functional electric response properties of molecules in Cartesian grid

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Published in 2018 at "International Journal of Quantum Chemistry"

DOI: 10.1002/qua.25708

Abstract: Within the finite-field Kohn-Sham framework, static electric response properties of diatomic molecules are presented. The electronic energy, dipole moment ({\boldmath$\mu$}), static dipole polarizability ({\boldmath$\alpha$}) and first-hyperpolarizability ({\boldmath$\beta$}) are calculated through a pseudopotential-DFT implementation in Cartesian… read more here.

Keywords: density functional; functional electric; cartesian grid; response properties ... See more keywords

An adaptive spot placement method on Cartesian grid for pencil beam scanning proton therapy.

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Published in 2021 at "Physics in medicine and biology"

DOI: 10.1088/1361-6560/ac3b65

Abstract: Pencil beam scanning (PBS) proton radiotherapy (RT) offers flexible proton spot placement near treatment targets for delivering tumoricidal radiation dose to tumor targets while sparing organs-at-risk (OAR). Currently the spot placement is mostly based on… read more here.

Keywords: geometry; cartesian grid; spot placement; tumor targets ... See more keywords

Three-Dimensional Cartesian Grid Method for the Simulations of Flows with Shock Waves in the Domains with Varying Boundaries

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Published in 2020 at "International Journal of Computational Methods"

DOI: 10.1142/s0219876220500462

Abstract: This paper is devoted to the development and quantitative evaluation of the properties of the numerical algorithm of the Cartesian grid method for three-dimensional (3D) simulation of shock-wave propagation in areas of varying shape. The… read more here.

Keywords: three dimensional; grid method; cartesian grid; shock ... See more keywords

Robust generation method of a signed distance function for preprocessing of cartesian-grid-based CFD

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Published in 2023 at "Journal of Theoretical and Applied Mechanics"

DOI: 10.15632/jtam-pl/165954

Abstract: In practical computational fluid dynamics simulations around industrial products with complex surface shapes, the robustness of preprocessing to “dirty” geometry is an important issue. The dirty STL (Standard Triangle Language) data contains errors such as… read more here.

Keywords: cartesian grid; generation method; method signed; geometry ... See more keywords

Novel Cartesian Grid-Stitching Algorithm Suitable for Dynamic-Boundary Euler Equation Computations

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Published in 2024 at "AIAA Journal"

DOI: 10.2514/1.j064605

Abstract: The aerodynamic characteristics of flowfields involving dynamic boundaries are complicated, imposing rigorous demands on grid generation and solution accuracy for numerical computations. Existing grid methodologies, such as overlapping grids and dynamic unstructured grids, struggle to… read more here.

Keywords: grid stitching; cartesian grid; grid; dynamic boundary ... See more keywords

A GPU-Accelerated Cartesian Grid Method for the Heat, Wave and Schrödinger Equations on Irregular Domains

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Published in 2024 at "Communications in Computational Physics"

DOI: 10.4208/cicp.oa-2023-0025

Abstract: . Based on Ying’s kernel-free boundary integral (KFBI) method [1], a second-order method for general elliptic partial differential equations (PDEs), this paper develops a GPU-accelerated KFBI method for the heat, wave and Schr¨odinger equations on… read more here.

Keywords: method; wave schr; cartesian grid; gpu accelerated ... See more keywords