Dissertation > Excellent graduate degree dissertation topics show

Improvement in the Real-Time of Smoke Simulation Based on Navier-Stokes Equation

Author: LiXiaoYan
Tutor: TangYong
School: Yanshan University
Course: Applied Computer Technology
Keywords: Smoke simulation Particle system Viewpoint Drive Particle number generating function Navier-Stokes equations Advection MacCormack method
CLC: TP391.41
Type: Master's thesis
Year: 2010
Downloads: 65
Quote: 0
Read: Download Dissertation

Abstract


In computer graphics , from the 1980s began on the simulation of smoke , until now, smoke simulation is still a meaningful and challenging task . The 863 research projects funded access to \For real-time smoke simulation influence factors , focusing on the following aspects in-depth study and discussion. First, the number of particles for particle system how much authenticity for smoke simulation and real-time effects , propose a mathematical model - driven viewpoint generating function to control the number of particles per frame newly generated particle number , appropriate to reduce the smoke simulation the number of particles needed to reduce computer processing time. And use of gas lift height threshold control method to determine the particle 's life situation , and enhance the realism of the simulation . Secondly , the establishment of hydrodynamic model Navier-Stokes (NS) equations to control the movement of smoke , NS equations for solving complex convective term effects of real-time problems, the introduction MacCormack method to solve the NS equations advection . Firstly, prior to solving the convection operator prior to smoke speed , and then use backward Operator Solving Convection smoke speed backward , and finally through the error correction has been calculated to assess the forward convection velocity , resulting in smoke next time speed. This approach simplifies the retreat error compensation correction method for solving convection term steps to reduce the computation time , improve the simulation in real time. The smoke simulation and real-time access to the authenticity of the balance . Finally , the use of language and openness VC OpenGL graphics interface on the Windows platform , designed to draw smoke system , smoke rendering algorithm for improving the experimental verification. Ultimately successfully applied to large-scale air and space battle scenes .

Related Dissertations

  1. Research and Application of Display Technology on Simulation Platform Based on Game Engine,TP391.41
  2. Research on Real-time Rendering Simulation Technology for Flame and Fireworks Based on Particle System,TP391.9
  3. Lattice Boltzmann Simulation of Marangoni Convection with Soret Effects in an 2D Rectangular Cavity,O351
  4. Passive microfluidic channel mixer topology optimization,TH703
  5. OGRE -based plastics calendering 3D Simulation System Design and Implementation,TP391.9
  6. Based on wavelet analysis method for fast simulation of fluid,TP391.41
  7. Using frequency domain analysis of the details of the method of generating fluid animation,TP391.41
  8. Vehicle driving simulator visual simulation technology research,TP391.9
  9. Table tennis stadium in the virtual modeling and rendering a virtual crowd,TP391.9
  10. Research on the Numerical Method of Space-time Conservation Element and Solution Element,V211.3
  11. Inviscid Limits for the Navier-Stokes Equations in 3D Domains with Friction Boundary Conditions,O35
  12. The Research and Simulation of Mine Gas Explosion Based on Particles System,TD712.7
  13. Research on Ballistic Missile Launch Simulation Based on Virtual Reality,TJ761.3
  14. Study of the Key Technology of Hair Modeling,TP391.41
  15. Improvement in the Real-Time Simulation of Realistic Smoke,TP391.41
  16. Optimization Research on the Simulation of Smoke in the Fluctuating Wind Field,TP391.41
  17. Study on Real-Time Interaction Improvement of Smoke and Obstacles Based on Overlapping Grids,TP391.41
  18. Asymptotic and Numerical Analysis for Several Classes of Singularly Perturbed Boundary Value Problems,O175.8
  19. NS equations upwind nonlinear Galerkin finite element algorithm and its a posteriori error estimates,O241.82
  20. Numerical Simulation of Flow Field for Horizontal Grinding Stirred Mill and Its Study on Comminuting Mechanism,TD453
  21. The Study on Permeability of RTM Process,TB332

CLC: > Industrial Technology > Automation technology,computer technology > Computing technology,computer technology > Computer applications > Information processing (information processing) > Pattern Recognition and devices > Image recognition device
© 2012 www.DissertationTopic.Net  Mobile