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In-situ visualization method for large-scale fluid simulation based on super computer

A supercomputer and fluid simulation technology, applied in design optimization/simulation, calculation, program control design, etc., can solve problems such as solutions, achieve the effect of improving efficiency and displaying visual results in real time

Pending Publication Date: 2020-03-31
TIANJIN UNIV
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Problems solved by technology

[0005] However, the traditional in-situ visual analysis method is only a broad definition, and cannot provide specific solutions for specific problems. Therefore, a method is needed, which is specifically for the in-situ visualization method of large-scale fluid mechanics. Mechanics for in situ visualization

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  • In-situ visualization method for large-scale fluid simulation based on super computer
  • In-situ visualization method for large-scale fluid simulation based on super computer

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Embodiment Construction

[0024] The present invention will be further described below by specific examples and accompanying drawings. The examples of the present invention are for better understanding of the present invention by those skilled in the art, and do not limit the present invention in any way.

[0025] Such as figure 1 As shown, the present invention provides a method for in-situ visualization of large-scale fluid simulation based on supercomputers, comprising the following steps:

[0026] Step 1: Obtain the grid data and flow field data xg and xw of key time steps from the simulation program of computational fluid dynamics;

[0027] Computational fluid dynamics is a very complicated process. Numerical calculation methods are used to solve the control equations of fluid dynamics in the computer, so as to further predict the flow of the flow field. In the calculation process of fluid dynamics, multiple iterations are often required to The results of the next step are obtained, but in most ...

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Abstract

The invention discloses an in-situ visualization method for large-scale fluid simulation based on a super computer. The in-situ visualization method comprises the following steps: 1, obtaining grid data and flow field data xg and xw of a key time step from a simulation program of computational fluid mechanics; 2, completing the compression of the density rho, the X-momentum rho-u, the Y-momentum rho-v, the Z-momentum rho-w and the total energy p in the flow field data xw through a data compression technology; 3, transmitting the grid data xg and the flow field data xw to a visualization program and decompressing; 4, reasonably distributing the data to different nodes for visualization according to a data segmentation algorithm; and 5, combining the partitioning results obtained in the previous step, drawing a complete visualization result, and continuing the step 1 to obtain the related data of the next key time step, thereby realizing the in-situ visualization process of the large-scale fluid data.

Description

technical field [0001] The invention relates to an in-situ visualization method, in particular to an in-situ visualization method based on supercomputer-based large-scale fluid simulation. Background technique [0002] Computational Fluid Dynamics (CFD) is one of the important technologies in the field of fluid mechanics in the 21st century. It uses numerical methods to solve the control equations of fluid mechanics in a computer, so that the flow of the flow field can be predicted. At present, the CFD method has been widely used in the field of engineering, including the solution of the air flow model of the aircraft wing model, the solution of the intake air field of the turbofan engine, and so on. Among them, CFL3D, which is widely used in the research field, contains many fluid simulation equations, and since 1980, CFL3D has been used to support a number of NASA programs, and it has made great contributions in the field of computational fluid dynamics. [0003] In the f...

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Application Information

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IPC IPC(8): G06F30/20G06F9/48G06F9/50G06F111/10G06F119/14
CPCG06F9/4881G06F9/505G06F9/5083
Inventor 侯敏毕重科黄元琪傅宝锋王佳敏
Owner TIANJIN UNIV
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