A virtual reality technique for multi-phase flows

被引:2
作者
Loth, E [1 ]
Sherman, W
Auman, A
Navarro, C
机构
[1] Univ Illinois, Dept Aeronaut & Astronaut Engn, Urbana, IL 61801 USA
[2] Univ Illinois, Natl Ctr Supercomp Applicat, Urbana, IL 61801 USA
关键词
virtual reality technique; Navier-Stokes equations; Eulerian; Lagrangian;
D O I
10.1080/10618560310001639037
中图分类号
O3 [力学];
学科分类号
08 ; 0801 ;
摘要
A virtual reality (VR) technique has been developed to allow user immersion (stereo-graphic rendering, user tracking and object interactivity) in generic unsteady three-dimensional multi-phase flow data sets. This article describes the structure and logic used to design and construct a VR technique that employs a multi-phase flow-field computed a priori as an input (i.e. simulations are conducted beforehand with a researcher's multi-phase CFD code). The input field for this flow visualization is divided into two parts: the Eulerian three-dimensional grid nodes and velocities for the continuous fluid properties (specified using conventional TECLOT data format) and the Lagrangian time-history trajectory files for the dispersed fluid. While tracking the dispersed phase trajectories as animated spheres of adjustable size and number, the continuous-phase flow can be simultaneously rendered with velocity vectors, iso-contour surfaces and planar flood-contour maps of different variables. The geometric and notional view of the combined visualization of both phases is interactively controlled throughout a user session. The resulting technique is demonstrated with a 3-D unsteady data set of Lagrangian particles dispersing in a Eulerian description of a turbulent boundary layer, stemming from a direct numerical simulation of the Navier-Stokes equations.
引用
收藏
页码:265 / 275
页数:11
相关论文
共 14 条
[1]   Exponential-Lagrangian tracking schemes applied to Stokes law [J].
Barton, IE .
JOURNAL OF FLUIDS ENGINEERING-TRANSACTIONS OF THE ASME, 1996, 118 (01) :85-89
[2]  
Bryson S., 1991, Proceedings Visualization '91 (Cat. No.91CH3046-0), P17, DOI 10.1109/VISUAL.1991.175771
[3]  
CRUZNEIRA C, 1993, IEEE 1993 S RES FRON, P59
[4]  
DORGAN AJ, 2003, ASME FLUIDS ENG M HO
[5]   Spherical bubble motion in a turbulent boundary layer [J].
Felton, K ;
Loth, E .
PHYSICS OF FLUIDS, 2001, 13 (09) :2564-2577
[6]  
FORSBERG AS, 2000, P IEEE VIS 2000 SALT
[7]   Numerical approaches for motion of dispersed particles, droplets and bubbles [J].
Loth, E .
PROGRESS IN ENERGY AND COMBUSTION SCIENCE, 2000, 26 (03) :161-223
[8]   A hardware-independent virtual reality development system [J].
Pape, D .
IEEE COMPUTER GRAPHICS AND APPLICATIONS, 1996, 16 (04) :44-47
[9]  
Rajlich P. J., 1998, THESIS U ILLINOIS UR
[10]  
ROHLF J, 1994, P SIGGRAPH 94, P381