Dissertation > Excellent graduate degree dissertation topics show

Research on Level-set Methods for Moving Interfaces of Gas-water-solid

Author: QianXiaoHui
Tutor: ZhaoNing
School: Nanjing University of Aeronautics and Astronautics
Course: Fluid Mechanics
Keywords: Multi - Fluid Interface capture Level - set method Mobile Virtual methods Water Droplet Impingement
CLC: O35
Type: Master's thesis
Year: 2009
Downloads: 126
Quote: 0
Read: Download Dissertation

Abstract


The numerical simulation of the fluid motion of the multi-media interface problems is one of the important research topic in the field of computational fluid dynamics research . This paper introduces the virtual flow method , the method using level - set function will contain two fluid flow field is divided into two streams , each containing a fluid field , each flow field by the real flow field and the virtual flow field , in order to achieve each of the flow field is calculated separately , simple and easy. Level - Set function is used to track the interface motion , the zero contour the interface of the two fluids , and other points around the interface Level - Set function value of the point to the interface symbol vertical distance , different symbols Level - Set function which means that the type of fluid . The method of dealing with large deformation problems in dealing with the changes in the interface topology , convenient and effective . Secondly, the the virtual flow method combined with the level - set function numerical experiments to verify the validity of numerical simulation results show that the method can accurately capture the multi-media fluid motion interface position . On this basis , to carry out the characteristics of water droplets hits a solid surface . Set by the Droplet solid boundary conditions , the use of Level - Set interface capture method to study the characteristics of the Droplet morphological changes its state of motion changes . Numerical experiments to understand the Water Droplet Impingement help to improve the surface of the spare parts of aircraft icing precision of numerical simulation .

Related Dissertations

  1. The Study on R-M Instability of the Material Interface in Gas-water Compressible Flow,O359.1
  2. The surface geometry noise removal of non- local variational model,TP391.41
  3. Based on SOPC design digital video capture card,TP274.2
  4. Image Segmentation Based on Active Contour Models,TP391.41
  5. Study on Level Set Evolution Without Reinitialization,TP391.41
  6. Active Contour Model and its Application and Research in Medical Endoscope Image Segmentation,TP391.41
  7. Studies on Medical Image Segmentation Based on Variational Level Set,TP391.41
  8. Algorithm Research on Image Coregistration of SAR,TN957.52
  9. Segmentation of Pulmonary Nodules Based on Chest X-ray CT Images,TP391.41
  10. Research for Solving Helmholtz Equation with Interface,O241.82
  11. Multiscale Modeling and Front Tracking for Chemical Vapor Inltration Process,TB332
  12. Research on Image Segmentation Method Based on Active Contour,TP391.41
  13. Target Tracking Algorithm,TP391.41
  14. Robust Watermark Algorithm Based on Level Set Method,TP391.41
  15. Tracking the Interface of Two-Phase Flow in Microchannels,O359.1
  16. The Level Set Method on Unstructured Mesh for Curve Evolution and Their Applications in Image Science,O241.8
  17. Variational level set method based city building extraction technology of remote sensing,TP751
  18. Physics-based simulation method for three-dimensional flow,TP391.41
  19. Image Segmentation Based on Level Set Method,TP391.41
  20. Image Segmentation Algorithm Based on Watershed and Level Set Method,TP391.41

CLC: > Mathematical sciences and chemical > Mechanics > Fluid Mechanics
© 2012 www.DissertationTopic.Net  Mobile