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Method for researching SPH (Smoothed Particle Hydrodynamics) multi-phase flow haptic interaction

A multiphase flow, haptic technology, applied in the field of SPH multiphase flow haptic interaction research, can solve the problems of lack of research on haptic interaction

Inactive Publication Date: 2016-08-03
TIANJIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Existing fluid interaction technology lacks research in the field of multiphase flow, especially the tactile interaction of multiphase flow based on SPH fluid

Method used

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  • Method for researching SPH (Smoothed Particle Hydrodynamics) multi-phase flow haptic interaction
  • Method for researching SPH (Smoothed Particle Hydrodynamics) multi-phase flow haptic interaction
  • Method for researching SPH (Smoothed Particle Hydrodynamics) multi-phase flow haptic interaction

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Embodiment Construction

[0055] The technical solution of the present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0056] The tactile interaction device used in the present invention is Geomagictouch, which has six degrees of freedom input and three degrees of freedom feedback force output. In the fluid simulation of the present invention, the SPH multiphase flow using the CUDA framework is used as the basis, and the method of solid / liquid coupling with the dynamic rigid body, the method of tactile rendering and the method of interaction are added to realize the overall framework of the method as follows: figure 1 shown.

[0057] The specific implementation process of the present invention comprises the following steps:

[0058] 1. Realize SPH mixed flow simulation

[0059] In fluid simulation, for miscible liquids, it is necessary to consider the volume fraction changes caused by the uneven distribution of the velocity...

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Abstract

The invention discloses a method for researching SPH (Smoothed Particle Hydrodynamics) multi-phase flow haptic interaction. The method comprises: S1, SPH mixed flow simulation; S2, implementation of solid / liquid coupling of SPH fluid; S3, implementation of haptic interaction control and haptic force rendering. Compared with the prior art, the method disclosed by the invention can provide real feedback of fluid interaction and a haptic force in a virtual scene for a user, can be used for the field of virtual reality education, game interaction and the like, and provides more real virtual reality interaction experience for the user in vision and touch sensation; by the method disclosed by the invention, equipment performance fed back by a DOF (degree of freedom) control mode and a three-DOF force and fluid interaction in the virtual sense are obtained, and a force fed back by the fluid is sensed.

Description

technical field [0001] The invention belongs to fluid simulation technology about tactile interaction in computer virtual reality application, in particular to a method for researching SPH multiphase flow tactile interaction. Background technique [0002] In the field of computer graphics, the research on physics-based fluid control and interaction has strong application value in the fields of game animation, digital entertainment, and virtual simulation. In virtual reality education and games, it is often necessary to stir during fluid interaction, such as alchemy and medicine refining actions in games. In physics-based fluid animation production, fluid interaction simulation based on haptic devices is also a research hotspot. [0003] The development and maturity of tactile interaction devices enable fluid control and interaction to obtain real force feedback effects in the process of interacting with virtual scenes. The tactile interaction device can not only control th...

Claims

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Application Information

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IPC IPC(8): G06F19/00G06F3/01
CPCG06F3/011G16Z99/00
Inventor 刘世光张枭勇
Owner TIANJIN UNIV
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