Smoke Simulation Based on Particle System in Virtual Environments

Author(s):  
Wensheng Dong ◽  
Xinyan Zhang ◽  
Caijun Zhang
Author(s):  
Fei Wan ◽  
Jingpu Zhang ◽  
Lizheng Guo ◽  
Yunchang Liu

In this paper, we use three different experimental methods (particle method, grid method and hybrid method) to model and simulate the smoke from the perspective of fluid dynamics. Through the comparison of different methods, we conclude: The particle method can avoid the numerical dissipation problem caused by grid calculation, but it also brings problems such as the distortion of the trajectory of the example. The grid method is accurate in calculation, but it is prone to numerical dissipation and loss of details. Finally, we choose the hybrid method to store the vorticity in the form of particles in vortex particles, avoiding the numerical dissipation problem caused by the use of grids, and including rich turbulence, which perfectly shows the simulation effect of smoke.


2013 ◽  
Vol 33 (7) ◽  
pp. 2059-2062 ◽  
Author(s):  
Xiuliang CHEN ◽  
Yingjie LIANG ◽  
Fuliang GUO

Author(s):  
Pan Qiuyu ◽  
Bi Shuoben ◽  
Lu Lianghu ◽  
Shi Yin

2010 ◽  
Vol 44-47 ◽  
pp. 3601-3605
Author(s):  
Jian Ni ◽  
Hong Xia Liu

Flame simulation in computer graphics has been the most challenging problems. According to the key problem of real time and reality in flame simulation based on particle system, a new flame model based on improved particle system and the texture mapping is proposed in this paper. This article uses specific geometric shape as the elementary particles and combines treatment of derivatives based on the flame of the original particle system to simplify some of the dynamic equation, to reduce the difficulty of computational modeling and improve rendering speed; Through texture mapping and particle mixing effects to achieve flame changes color in different regions and reflect the temperature difference between them; In addition, the method also reflects the dynamic field of the particle system.


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