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Constraint-based simulation of interactions between fluids and unconstrained rigid bodies

Sho Kurose, Shigeo Takahashi
2009 Proceedings of the 2009 Spring Conference on Computer Graphics - SCCG '09  
Conventional particle-based methods used a penalty-based approach to resolve collisions between fluids and rigid bodies.  ...  We present a method for simulating stable interactions between fluids and unconstrained rigid bodies.  ...  Particle-based methods have been effectively used for simulating the interactions between fluids and rigid bodies because it can easily calculate how the rigid bodies will respond to local motions of the  ... 
doi:10.1145/1980462.1980498 dblp:conf/sccg/KuroseT09 fatcat:wn2epyo2cjehbg2wb373fjjvzm

Fluid Simulation with Two-Way Interaction Rigid Body Using a Heterogeneous GPU and CPU Environment

José Ricardo da S. Junior, Esteban W. Clua, Anselmo Montenegro, Paulo A. Pagliosa
2010 2010 Brazilian Symposium on Games and Digital Entertainment  
Fluid simulation is achieved by solving the Navier-Stokes set of equations, using a numerical method in CPU or GPU, independently, as these equations do not have an analytical solution.  ...  In this paper we propose an heterogeneous multicore CPU and GPU hybrid architecture for fluid simulation with two-ways of interaction between them, and with a fine granularity control over rigid body's  ...  In this case, rigid bodies which are in the simulation focus uses a large number of small particles to better perform collision detection and response, while rigid bodies that are not in the simulation  ... 
doi:10.1109/sbgames.2010.25 dblp:conf/sbgames/JuniorCMP10 fatcat:t4vz3rt2orae7gn4jwjwlrp5ui

Rigid Body Sampling and Individual Time Stepping for Rigid-Fluid Coupling of Fluid Simulation

Xiaokun Wang, Xiaojuan Ban, Yalan Zhang, Xu Liu
2017 Scientific Programming  
Our approach samples the surface of rigid bodies with boundary particles that interact with fluids.  ...  Furthermore, we present a rigid-fluid coupling scheme integrating individual time stepping to rigid-fluid coupling, which gains an obvious speedup compared to previous method.  ...  Rigid bodies sampling includes particle-based methods and polygonization-based methods.  ... 
doi:10.1155/2017/8502691 fatcat:6zvxxqmhubdwhehh5wfecsymla

Rigid Body Joints in Real-Time Unified Particle Physics [article]

Bojan Lovrovic, Zeljka Mihajlovic
2018 Eurographics State of the Art Reports  
In this paper, we propose a physically-based method for a rigid body joint simulation.  ...  The proposed solution is based on the unified particle physics engine, a simulator that uses only particles for all the dynamic bodies.  ...  An attractive property observed in Lagrangian methods is unification of usually-separated physical simulators (e.g. fluid, cloth or rigid body simulators).  ... 
doi:10.2312/egs.20181031 fatcat:iivg5bqed5erjmzpklhllchfni

Particle-based simulation of granular materials

Nathan Bell, Yizhou Yu, Peter J. Mucha
2005 Proceedings of the 2005 ACM SIGGRAPH/Eurographics symposium on Computer animation - SCA '05  
In this paper we present a simple and effective method for granular material simulation.  ...  We generalize this discrete model to rigid bodies by distributing particles over their surfaces. In this way, two-way coupling between granular materials and rigid bodies is achieved.  ...  This work was partially supported by a grant from UIUC Research Board.  ... 
doi:10.1145/1073368.1073379 fatcat:adtyrjnwerfwxjcchdkkrgt3cu

Six Degrees-of-Freedom Haptic Interaction with Fluids

G. Cirio, M. Marchal, S. Hillaire, A. Lecuyer
2011 IEEE Transactions on Visualization and Computer Graphics  
possible thanks to a new coupling scheme and a unified particle model, allowing the use of arbitrary-shaped rigid bodies.  ...  Index Terms-6DoF haptic interaction, computational fluid dynamics, smoothed-particle hydrodynamics, rigid bodies ! • G. Cirio, M. Marchal, S. Hillaire and A. Lécuyer are with INRIA Rennes,  ...  Rigid bodies can be simply and efficiently modeled with the same SPH particles used in the fluid simulation.  ... 
doi:10.1109/tvcg.2010.271 pmid:21173455 fatcat:a4ix2ydbi5ed5ad2vsdcltbja4

Synthetic Packed-Bed Generation for CFD Simulations: Blender vs. STAR-CCM+

Steffen Flaischlen, Gregor D. Wehinger
2019 ChemEngineering  
In this study, we look critically at the two different bed generation methods: Discrete element method (DEM) (in the commercial software STAR-CCM+) and the rigid-body model (in the open-source software  ...  A common reactor type in the chemical and process industry is the fixed-bed reactor. Accurate modeling can be achieved with particle-resolved computational fluid dynamic (CFD) simulations.  ...  For a comparison between a rigid body and soft body simulation in Blender see Reference [39] .  ... 
doi:10.3390/chemengineering3020052 fatcat:mc5n7rhb2replfvto4af5diaky

Direct Forcing for Lagrangian Rigid-Fluid Coupling

M. Becker, H. Tessendorf, M. Teschner
2009 IEEE Transactions on Visualization and Computer Graphics  
They illustrate one-and two-way coupling of rigid bodies and fluids, the effects of hydrostatic and dynamic forces on a rigid body as well as different slip conditions.  ...  We propose a novel boundary handling algorithm for particle-based fluids.  ...  Although the proposed rigid-body representation allows for a unified handling of rigid bodies and fluids in certain aspects of the simulation, e. g. particle-particle collision tests, our boundary handling  ... 
doi:10.1109/tvcg.2008.107 pmid:19282554 fatcat:s5vycx4zljgqhm7a3cjgc6tu5u

A unified particle model for fluid–solid interactions

Barbara Solenthaler, Jürg Schläfli, Renato Pajarola
2007 Computer Animation and Virtual Worlds  
We present a new method for the simulation of melting and solidification in a unified particle model.  ...  Our technique uses the Smoothed Particle Hydrodynamics (SPH) method for the simulation of liquids, deformable as well as rigid objects, which eliminates the need to define an interface for coupling different  ...  Rigid Bodies For modeling rigid bodies the basic SPH fluid model is extended to enforce rigid body motion.  ... 
doi:10.1002/cav.162 fatcat:dk3wzed2kzcthdhwttlafblb2u

Rigid body constraints realized in massively-parallel molecular dynamics on graphics processing units

Trung Dac Nguyen, Carolyn L. Phillips, Joshua A. Anderson, Sharon C. Glotzer
2011 Computer Physics Communications  
Extending these basic methods with rigid body constraints enables composite particles with complex shapes such as anisotropic nanoparticles, grains, molecules, and rigid proteins to be modeled.  ...  The software can now simulate systems of particles, rigid bodies, or mixed systems in microcanonical (NVE), canonical (NVT), and isothermalisobaric (NPT) ensembles.  ...  Acknowledgements We thank Aaron Keys for helpful discussions on the FIRE algorithm for rigid bodies and Anthony Sheh for helping with the CPU implementation of the quaternion scheme.  ... 
doi:10.1016/j.cpc.2011.06.005 fatcat:q2arpnwg6vhohlxvkdpkxsuble

Versatile rigid-fluid coupling for incompressible SPH

Nadir Akinci, Markus Ihmsen, Gizem Akinci, Barbara Solenthaler, Matthias Teschner
2012 ACM Transactions on Graphics  
Abstract We propose a momentum-conserving two-way coupling method of SPH fluids and arbitrary rigid objects based on hydrodynamic forces.  ...  Our approach samples the surface of rigid bodies with boundary particles that interact with the fluid, preventing deficiency issues and both spatial and temporal discontinuities.  ...  One main advantage of our method is that the interaction with lower dimensional rigid bodies can be simulated.  ... 
doi:10.1145/2185520.2185558 fatcat:n2xhdbh2nfdglkunw3ojtwlhvy

Numerical simulation of a moving rigid body in a rarefied gas

Samir Shrestha, Sudarshan Tiwari, Axel Klar, Steffen Hardt
2015 Journal of Computational Physics  
The rarefied gas is simulated by solving the Boltzmann equation using a DSMC particle method.  ...  In this paper we present a numerical scheme to simulate a moving rigid body with arbitrary shape suspended in a rarefied gas.  ...  Conclusion and outlook We have presented a numerical method for simulating rigid bodies with arbitrary shape in a rarefied gas.  ... 
doi:10.1016/j.jcp.2015.03.030 fatcat:rwc4lcuszreqhomy6n6cvt2tx4

Versatile rigid-fluid coupling for incompressible SPH

Nadir Akinci, Markus Ihmsen, Gizem Akinci, Barbara Solenthaler, Matthias Teschner
2012 ACM Transactions on Graphics  
Abstract We propose a momentum-conserving two-way coupling method of SPH fluids and arbitrary rigid objects based on hydrodynamic forces.  ...  Our approach samples the surface of rigid bodies with boundary particles that interact with the fluid, preventing deficiency issues and both spatial and temporal discontinuities.  ...  One main advantage of our method is that the interaction with lower dimensional rigid bodies can be simulated.  ... 
doi:10.1145/2185520.2335413 fatcat:xa47vpv6nfalxd3idwmhplhboy

NUMERICAL MODELING OF NON-COHESIVE CONTACT IN MULTI-BODY HYDRODYNAMIC SYSTEMS WITH SPH

Mohammad Javad Mohajeri, Mehdi Shafieefar, Soheil Radfar
2017 Coastal Engineering Proceedings  
Enforcing solid boundary conditions is one of the most challenging parts of the Smoothed Particle Hydrodynamics (SPH) method and many different approaches have been recently developed.  ...  In this paper, a non-cohesive contact model in multi-body hydrodynamic systems has been developed and validated against other common boundary conditions.  ...  In this method, similar to the repulsive force method, a layer of SPH particles were defined as rigid boundary.  ... 
doi:10.9753/icce.v35.structures.49 fatcat:i6435p44ejad3cihelyzyx3opq

An incompressible smoothed particle hydrodynamics method for the motion of rigid bodies in fluids

N. Tofighi, M. Ozbulut, A. Rahmat, J.J. Feng, M. Yildiz
2015 Journal of Computational Physics  
A two-dimensional incompressible smoothed particle hydrodynamics scheme is presented for simulation of rigid bodies moving through Newtonian fluids.  ...  The scheme relies on combined usage of the rigidity constraints and the viscous penalty method to simulate rigid body motion.  ...  Conclusions A two-dimensional smoothed particle hydrodynamics method has been presented for simulation of motion of rigid bodies in Newtonian fluids.  ... 
doi:10.1016/j.jcp.2015.05.015 fatcat:luzxldy5yza4dc6glo5hngkeju
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