Method for simulating solid combustion process based on thermodynamic model

A thermodynamic model and combustion process technology, applied in 3D modeling, image data processing, instruments, etc., to achieve the effect of improving the performance of details and high computing efficiency

Active Publication Date: 2013-01-09
BEIHANG UNIV
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Problems solved by technology

However, the current simulation research on the interaction between flames and other objects and the combustion process of objects still faces many challenges, because there are more complex physica

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  • Method for simulating solid combustion process based on thermodynamic model
  • Method for simulating solid combustion process based on thermodynamic model
  • Method for simulating solid combustion process based on thermodynamic model

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Embodiment Construction

[0027] figure 1 The overall processing flow of the solid combustion process based on the thermodynamic model is given, and the present invention will be further described below in conjunction with other drawings and specific embodiments.

[0028] The invention provides a method for simulating a solid combustion process based on a thermodynamic model. The main steps are as follows:

[0029] 1. Burning diffuse reflection texture precomputation method

[0030] This method combines precomputation and procedural texture (Procedural Texture) to simulate the special effect of the surface of the object when the flame burns. When the solid is burned, the small undulations on the surface of the model will cause some detailed changes in the surface color, such as: cracks, color differences caused by undulations, and so on. Taking charcoal as an example, the burning process of charcoal has complex and rich details. The part of the charcoal that is burning will turn red, the part that i...

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Abstract

The invention provides a method for simulating a solid combustion process based on a thermodynamic model. The method comprises the following four steps of: a pre-calculation stage which is used for treating changes of details such as geometrical information of the model surface and the texture color of the model after combusted; a stage of flame diffusion calculation of the object surface, which is used for calculating the combustion range of the flame on the model surface at the next time by using thermodynamic model iteration according to the combustion state of the current model; a stage of deformation calculation of a flame object, which is used for calculating the deformation calculation degree of the model by combining the material characteristic of the model surface according to the flame diffusion range and the combustion state; and a non-photorealistic rendering stage, which is used for implementing the non-photorealistic rendering for the flame and the model according to the combustion state of the object in a virtual scene. The method provided by the invention can be used for simulating the flame diffusion on the object surface in the combustion process based on a GPU (Ground Power Unit) and simulating the deformation calculation process of the object due to the combustion, can also be used for implementing the realistic rendering for the flame, and has the characteristics of good real-time performance and strong physical realism.

Description

technical field [0001] The invention relates to a method for simulating a solid combustion process based on a thermodynamic model. Background technique [0002] Since the 1980s, the research on flame and other indeterminate objects and fluid simulation has been developed for more than 20 years. Research in this field involves multiple academic directions such as Newtonian dynamics, continuum mechanics, numerical calculation, differential set, and computer graphics. It has high practical value in game entertainment, scientific computing, and simulation training. A very challenging research hotspot. In recent years, with the popularization of multi-core CPU and GPU parallel processing technology, physics-based flame modeling and simulation technology has developed rapidly and become a new research hotspot in the field of computer graphics. The fluid simulation under the range and precision can basically meet the needs of real-time interaction. [0003] Physics-based flame s...

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Application Information

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IPC IPC(8): G06T19/00G06T17/30
Inventor 李帅冉蛟郝爱民杨丽鹏
Owner BEIHANG UNIV
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