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Hydraulic Erosion Using Smoothed Particle Hydrodynamics.

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Title: Hydraulic Erosion Using Smoothed Particle Hydrodynamics.
Authors: Krištof, P.1 pkristof@purdue.edu, Beneš, B.1 bbenes@purdue.edu, Křivánek, J.2 jaroslav@graphics.cornell.edu, Št'ava, O.1 ostava@purdue.edu
Source: Computer Graphics Forum. Apr2009, Vol. 28 Issue 2, p219-228. 10p. 3 Color Photographs, 5 Diagrams, 1 Chart.
Subjects: Hydraulics, Computational hydrodynamics software, Erosion, Simulation software, Three-dimensional imaging, Computer-aided imagery software, Computer software
Abstract: This paper presents a new technique for modification of 3D terrains by hydraulic erosion. It efficiently couples fluid simulation using a Lagrangian approach, namely the Smoothed Particle Hydrodynamics (SPH) method, and a physically-based erosion model adopted from an Eulerian approach. The eroded sediment is associated with the SPH particles and is advected both implicitly, due to the particle motion, and explicitly, through an additional velocity field, which accounts for the sediment transfer between the particles. We propose a new donor-acceptor scheme for the explicit advection in SPH. Boundary particles associated to the terrain are used to mediate sediment exchange between the SPH particles and the terrain itself. Our results show that this particle-based method is efficient for the erosion of dense, large, and sparse fluid. Our implementation provides interactive results for scenes with up to 25,000 particles. [ABSTRACT FROM AUTHOR]
Copyright of Computer Graphics Forum is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
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PubType: Academic Journal
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  Data: <searchLink fieldCode="AR" term="%22Krištof%2C+P%2E%22">Krištof, P.</searchLink><relatesTo>1</relatesTo><i> pkristof@purdue.edu</i><br /><searchLink fieldCode="AR" term="%22Beneš%2C+B%2E%22">Beneš, B.</searchLink><relatesTo>1</relatesTo><i> bbenes@purdue.edu</i><br /><searchLink fieldCode="AR" term="%22Křivánek%2C+J%2E%22">Křivánek, J.</searchLink><relatesTo>2</relatesTo><i> jaroslav@graphics.cornell.edu</i><br /><searchLink fieldCode="AR" term="%22Št'ava%2C+O%2E%22">Št'ava, O.</searchLink><relatesTo>1</relatesTo><i> ostava@purdue.edu</i>
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  Data: <searchLink fieldCode="JN" term="%22Computer+Graphics+Forum%22">Computer Graphics Forum</searchLink>. Apr2009, Vol. 28 Issue 2, p219-228. 10p. 3 Color Photographs, 5 Diagrams, 1 Chart.
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  Data: <searchLink fieldCode="DE" term="%22Hydraulics%22">Hydraulics</searchLink><br /><searchLink fieldCode="DE" term="%22Computational+hydrodynamics+software%22">Computational hydrodynamics software</searchLink><br /><searchLink fieldCode="DE" term="%22Erosion%22">Erosion</searchLink><br /><searchLink fieldCode="DE" term="%22Simulation+software%22">Simulation software</searchLink><br /><searchLink fieldCode="DE" term="%22Three-dimensional+imaging%22">Three-dimensional imaging</searchLink><br /><searchLink fieldCode="DE" term="%22Computer-aided+imagery+software%22">Computer-aided imagery software</searchLink><br /><searchLink fieldCode="DE" term="%22Computer+software%22">Computer software</searchLink>
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  Data: This paper presents a new technique for modification of 3D terrains by hydraulic erosion. It efficiently couples fluid simulation using a Lagrangian approach, namely the Smoothed Particle Hydrodynamics (SPH) method, and a physically-based erosion model adopted from an Eulerian approach. The eroded sediment is associated with the SPH particles and is advected both implicitly, due to the particle motion, and explicitly, through an additional velocity field, which accounts for the sediment transfer between the particles. We propose a new donor-acceptor scheme for the explicit advection in SPH. Boundary particles associated to the terrain are used to mediate sediment exchange between the SPH particles and the terrain itself. Our results show that this particle-based method is efficient for the erosion of dense, large, and sparse fluid. Our implementation provides interactive results for scenes with up to 25,000 particles. [ABSTRACT FROM AUTHOR]
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  Data: <i>Copyright of Computer Graphics Forum is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Value: 10.1111/j.1467-8659.2009.01361.x
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      – Code: eng
        Text: English
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      – SubjectFull: Hydraulics
        Type: general
      – SubjectFull: Computational hydrodynamics software
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      – SubjectFull: Erosion
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      – SubjectFull: Simulation software
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      – SubjectFull: Three-dimensional imaging
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      – SubjectFull: Computer-aided imagery software
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              Text: Apr2009
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