CUDA-based Signed Distance Field Calculation for Adaptive Grids

2010 ◽  
Author(s):  
Taejung Park ◽  
Sung-Ho Lee ◽  
Jong-Hyun Kim ◽  
Chang-Hun Kim
Keyword(s):  
Field Calculation ◽  
Adaptive Grids ◽  
Distance Field ◽  
Signed Distance ◽  
Signed Distance Field

Effective Geometric Algorithms for Immersed Boundary Method Using Signed Distance Field

2018 ◽  
Vol 141 (6) ◽  
Author(s):  
Chenguang Zhang ◽  
Chunliang Wu ◽  
Krishnaswamy Nandakumar
Keyword(s):  
Immersed Boundary Method ◽  
Volume Fraction ◽  
Solid Volume Fraction ◽  
Closed Surface ◽  
Immersed Boundary ◽  
Field Calculation ◽  
Distance Field ◽  
Signed Distance ◽  
Boundary Method ◽  
Signed Distance Field

We present three algorithms for robust and efficient geometric calculations in the context of immersed boundary method (IBM), including classification of mesh cells as inside/outside of a closed surface, projection of points onto a surface, and accurate calculation of the solid volume fraction field created by a closed surface overlapping with a background Cartesian mesh. The algorithms use the signed distance field (SDF) to represent the surface and remove the intersection tests, which are usually required by other algorithms developed before, no matter the surface is described in analytic or discrete form. The errors of the algorithms are analyzed. We also develop an approximate method on efficient SDF field calculation for complex geometries. We demonstrate how the algorithms can be implemented within the framework of IBM with a volume-average discrete-forcing scheme and applied to simulate fluid–structure interaction problems.

Practical analytic 2D signed distance field generation

2016 ◽  
Author(s):  
Wasim Abbas ◽  
Chris Doran ◽  
Rich Evans ◽  
Roberto Lopez Mendez
Keyword(s):  
Distance Field ◽  
Signed Distance ◽  
Field Generation ◽  
Signed Distance Field

SDF-RVD: Restricted Voronoi Diagram on Signed Distance Field

2021 ◽  
pp. 103166
Author(s):  
Wenjuan Hou ◽  
Chen Zong ◽  
Pengfei Wang ◽  
Shiqing Xin ◽  
Shuangmin Chen ◽  
...  
Keyword(s):  
Voronoi Diagram ◽  
Distance Field ◽  
Signed Distance ◽  
Signed Distance Field
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