### Abstract

This paper describes a highly interactive method for computer visualization of simultaneous three-dimensional vector and scalar flow fields in convection-diffusion systems. This method allows a computational fluid dynamics user to visualize the basic physical process of dispersion and mixing rather than just the vector and scalar values computed by the simulation. It is based on transforming the vector field from a traditionally Eulerian reference frame into a Lagrangian reference frame. Fluid elements are traced through the vector field for the mean path as well as the statistical dispersion of the fluid elements about the mean position by using added scalar information about the root mean square value of the vector field and its Lagrangian time scale. In this way, clouds of fluid elements are traced not just mean paths. We have used this method to visualize the simulation of an industrial incinerator to help identify mechanisms for poor mixing.

Original language | English (US) |
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Title of host publication | Proceedings of the 4th Conference on Visualization, VIS 1993 |

Editors | Dan Bergeron, Greg Nielson |

Publisher | Association for Computing Machinery, Inc |

Pages | 253-260 |

Number of pages | 8 |

ISBN (Electronic) | 0818639407, 9780818639401 |

State | Published - Oct 25 1993 |

Externally published | Yes |

Event | 4th Annual IEEE Conference on Visualization, VIS 1993 - San Jose, United States Duration: Oct 25 1993 → Oct 29 1993 |

### Other

Other | 4th Annual IEEE Conference on Visualization, VIS 1993 |
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Country | United States |

City | San Jose |

Period | 10/25/93 → 10/29/93 |

### Fingerprint

### ASJC Scopus subject areas

- Human-Computer Interaction
- Computer Vision and Pattern Recognition
- Computer Graphics and Computer-Aided Design
- Software

### Cite this

*Proceedings of the 4th Conference on Visualization, VIS 1993*(pp. 253-260). Association for Computing Machinery, Inc.

**Cloud tracing in convection-diffusion systems.** / Ma, Kwan-Liu; Smith, Philip J.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

*Proceedings of the 4th Conference on Visualization, VIS 1993.*Association for Computing Machinery, Inc, pp. 253-260, 4th Annual IEEE Conference on Visualization, VIS 1993, San Jose, United States, 10/25/93.

}

TY - GEN

T1 - Cloud tracing in convection-diffusion systems

AU - Ma, Kwan-Liu

AU - Smith, Philip J.

PY - 1993/10/25

Y1 - 1993/10/25

N2 - This paper describes a highly interactive method for computer visualization of simultaneous three-dimensional vector and scalar flow fields in convection-diffusion systems. This method allows a computational fluid dynamics user to visualize the basic physical process of dispersion and mixing rather than just the vector and scalar values computed by the simulation. It is based on transforming the vector field from a traditionally Eulerian reference frame into a Lagrangian reference frame. Fluid elements are traced through the vector field for the mean path as well as the statistical dispersion of the fluid elements about the mean position by using added scalar information about the root mean square value of the vector field and its Lagrangian time scale. In this way, clouds of fluid elements are traced not just mean paths. We have used this method to visualize the simulation of an industrial incinerator to help identify mechanisms for poor mixing.

AB - This paper describes a highly interactive method for computer visualization of simultaneous three-dimensional vector and scalar flow fields in convection-diffusion systems. This method allows a computational fluid dynamics user to visualize the basic physical process of dispersion and mixing rather than just the vector and scalar values computed by the simulation. It is based on transforming the vector field from a traditionally Eulerian reference frame into a Lagrangian reference frame. Fluid elements are traced through the vector field for the mean path as well as the statistical dispersion of the fluid elements about the mean position by using added scalar information about the root mean square value of the vector field and its Lagrangian time scale. In this way, clouds of fluid elements are traced not just mean paths. We have used this method to visualize the simulation of an industrial incinerator to help identify mechanisms for poor mixing.

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M3 - Conference contribution

AN - SCOPUS:39649110107

SP - 253

EP - 260

BT - Proceedings of the 4th Conference on Visualization, VIS 1993

A2 - Bergeron, Dan

A2 - Nielson, Greg

PB - Association for Computing Machinery, Inc

ER -