Simulation of a flowing snow avalanche using molecular dynamics

Denizhan GÜÇER; Halil Bülent ÖZGÜÇ

Article Details

Simulation of a flowing snow avalanche using molecular dynamics

Authors:

Denizhan GÜÇER | Halil Bülent ÖZGÜÇ

Publisher:

TUBITAK

Journal:

Turkish Journal of Electrical Engineering and Computer Science 2014 Vol.22 Issue 6, pp.1596-1610

Document Type:

Article

Publication Date:

5/2014

Document Language:

Turkish

Document ID (Org No.):

2000742819

Frequency:

Bimonthly

eISSN:

1303-6203

pISSN:

1300-0632

Abstract:

 

This paper presents an approach for the modeling and simulation of a flowing snow avalanche, which is formed of dry and liquefied snow that slides down a slope, using molecular dynamics and the discrete element method. A particle system is utilized as a base method for the simulation and marching cubes with real-time shaders are employed for rendering. A uniform grid-based neighbor search algorithm is used for collision detection for interparticle and particle-terrain interactions. A mass-spring model of the collision resolution is employed to mimic the compressibility of the snow and particle attraction forces are put into use between the particles and terrain surface. In order to achieve greater performance, general purpose GPU language and multithreaded programming are utilized for collision detection and resolution. The results are displayed with different combinations of rendering methods for the realistic representation of the flowing avalanche.

 

This paper presents an approach for the modeling and simulation of a flowing snow avalanche, which is formed of dry and liquefied snow that slides down a slope, using molecular dynamics and the discrete element method. A particle system is utilized as a base method for the simulation and marching cubes with real-time shaders are employed for rendering. A uniform grid-based neighbor search algorithm is used for collision detection for interparticle and particle-terrain interactions. A mass-spring model of the collision resolution is employed to mimic the compressibility of the snow and particle attraction forces are put into use between the particles and terrain surface. In order to achieve greater performance, general purpose GPU language and multithreaded programming are utilized for collision detection and resolution. The results are displayed with different combinations of rendering methods for the realistic representation of the flowing avalanche.

Article Details

Simulation of a flowing snow avalanche using molecular dynamics

Authors: Denizhan GÜÇER | Halil Bülent ÖZGÜÇ

Publisher: TUBITAK

Journal: Turkish Journal of Electrical Engineering and Computer Science 2014 Vol.22 Issue 6, pp.1596-1610

Document Type: Article

Publication Date: 5/2014

Document Language: Turkish

Document ID (Org No.): 2000742819

Frequency: Bimonthly

eISSN: 1303-6203

pISSN: 1300-0632

Issues

Authors:

Denizhan GÜÇER | Halil Bülent ÖZGÜÇ

Publisher:

TUBITAK

Journal:

Turkish Journal of Electrical Engineering and Computer Science 2014 Vol.22 Issue 6, pp.1596-1610

Document Type:

Article

Publication Date:

5/2014

Document Language:

Turkish

Document ID (Org No.):

2000742819

Frequency:

Bimonthly

eISSN:

1303-6203

pISSN:

1300-0632