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Realistic fluid repetitive simulation method

A simulation method, realistic technology, applied in design optimization/simulation, instrumentation, calculation, etc.

Inactive Publication Date: 2016-11-16
EAST CHINA NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, in the existing technology, although some fluid realistic simulation methods have appeared, it is still a challenging problem to use video fluid to realize realistic fluid re-simulation

Method used

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Experimental program
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Embodiment

[0032] The invention will be further described below in conjunction with the accompanying drawings.

[0033] In this embodiment, the fluid video in the DynTex dynamic texture library (for example, fluid video such as 54ab110) is used to implement realistic re-simulation of the fluid scene. It is implemented under the Windows7 operating system on the PC, and its hardware configuration is 2.66GHz Intel Core(TM) 2Duo CPU, 4GB RAM.

[0034] Select two frames (called sample frames, denoted as F 1 and F 2 ) to realize the fluid simulation function, because the simulation initialization condition is derived from the sample frame, the purpose is to realize the realistic flow simulation process after the physical driving data initialization of the fluid video sample frame, the present invention proceeds according to the following steps:

[0035] Step 1: Preprocessing

[0036] Calculate F 1 The height H of any particle in i , using F 1 and F 2 Calculate F 1 The velocity v of the...

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Abstract

The invention discloses a realistic fluid repetitive simulation method. The method aims at utilizing sample frames of video fluid to achieve a realistic repetitive simulation result. According to the method, firstly, physical drive data of sample frame fluid is calculated, by means of wavelet transform, a radio-frequency component of the drive data is acquired in a frequency domain space, then, in the process of fluid repetitive simulation, drive data in the LBM simulation process is enhanced through extracted high-frequency detail components, and the repetitive simulation result with the realistic details is obtained. The realistic fluid repetitive simulation method can be effectively applied to fluid reverse engineering studies and applications, repetitive simulation of fluid scene reality can be achieved, a realistic effect close to the appearance of the sample fluid is acquired, and the problem that existing fluid reality is in shortage of details is solved.

Description

technical field [0001] The invention relates to a realistic fluid re-simulation method, which adopts discrete wavelet transform to extract the details of physical driving data in the high-frequency region of the frequency domain; during the deduction process of the fluid re-simulation, the dynamic details of the extracted high-frequency components are enhanced to In the spectral driving data of the simulation process, the driving data in the fluid re-simulation can be enhanced in the spectral space, and then the re-simulation results with rich details can be obtained. Background technique [0002] Realistic fluid weight simulation has been widely used in game design, fluid animation simulation, film special effects design, fluid military simulation and other fields. In recent years, the research on video fluid re-simulation technology has attracted much attention, and its purpose is to make full use of the driving data in video fluid to obtain realistic real-time simulation ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50
CPCG06F30/20
Inventor 全红艳
Owner EAST CHINA NORMAL UNIV
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