A search method and system for computational fluid dynamics analysis
A technology for dynamic analysis and computational fluid, which is applied in the search method and system field of computational fluid dynamics analysis, and can solve problems that cannot meet the requirements of fast calculation
Active Publication Date: 2020-11-13
GUANGDONG UNIV OF TECH
View PDF4 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
For complex domain contours in computational fluid dynamics, these methods are not adequate for fast calculations
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0044] The technical solutions of the present invention will be further described below through specific embodiments in conjunction with the accompanying drawings.
[0045] A search method for computational fluid dynamics analysis, including the following steps:
[0046] (1) Input the area outline of the fluid, which is composed of closed irregular shapes;
[0047] (2) Obtain the coordinate information (x, y) of each node in the step (1) irregular shape; obtain the outermost point of the irregular shape;
[0048] (3) Obtain the contour of the closed area with the largest area of the irregular shape, which starts from the outermost point of the irregular shape and passes through the nodes in the irregular shape sequentially based on the principle of depth first to form a closed path, calculate and save the closed area The size of the area, the same path cannot pass through the same node; continue to search for the next closed area, and compare it with the size of the previou...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention discloses a searching method and system for computational fluid dynamics analysis. The searching method comprises the steps that the area outline of fluid is input; obtaining coordinateinformation of an irregular shape; obtaining the outermost point of the irregular shape; obtaining the outline of the closed region with the maximum area in the irregular shape, comparing the outlinewith the area of the previous closed region, and storing the closed region with a larger area; repeating until the outline of the closed region with the maximum area is obtained; obtaining a minimum closed region contour of a node in the irregular shape; continuously comparing with the area of the other closed region, and storing the smaller closed region; obtaining the outline of the closed region with the minimum node area; the system comprises a fluid characteristic input module, an outermost point operation module, a maximum value calculation module, a minimum value calculation module anda passing parameter module. According to the method, the closed region is selected by calculating the area, the area of the closed region is easy to obtain, the universality is high, the operation time is short, and few resources are consumed.
Description
technical field [0001] The invention relates to the technical field of fluid dynamics, in particular to a search method and system for computational fluid dynamics analysis. Background technique [0002] Computational fluid dynamics is the analysis of systems including related physical phenomena such as fluid flow and heat conduction through computer numerical calculation and image display. Its basic idea is to replace the continuous physical quantity fields in the time domain and space domain, such as velocity field and pressure field, with a series of variable value sets on a finite number of discrete points, and to establish the relationship between these variables through certain principles and methods. A system of algebraic equations for the relationship between field variables at discrete points, then solving the equations to obtain an approximation of the field variables. [0003] There are many existing calculation methods for area division, but most of them are for...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): G06F30/28G06F119/14G06F111/10
Inventor 黄东华李海艳骆继明黄运保
Owner GUANGDONG UNIV OF TECH