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Model pretreatment method for turbomachinery

An impeller machinery and model technology, which is applied in image data processing, 3D modeling, computer-aided design, etc., can solve problems such as multi-stage rotating impeller machinery simulation, and achieve close calculation results, reduce the amount of calculation, and increase the grid. The effect of density

Pending Publication Date: 2022-07-01
HOHAI UNIV CHANGZHOU
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Problems solved by technology

[0005] Aiming at the deficiencies of the prior art, the present invention provides a model preprocessing method for impeller machinery. By setting the method of multi-stage rotation domain, the rotation of multi-stage impeller machinery can be more realistically simulated, thereby solving the problem of multi-stage impeller rotation. Mechanical Simulation Problems

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  • Model pretreatment method for turbomachinery
  • Model pretreatment method for turbomachinery
  • Model pretreatment method for turbomachinery

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Embodiment Construction

[0036] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0037] The relative arrangement of the components and steps, the numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the invention unless specifically stated otherwise. Meanwhile, it should be understood that, for the convenience of description, the dimensions of various parts shown in the accompanying drawings are not drawn in an actual proportional relationship. Techniques, methods, ...

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Abstract

The invention relates to the technical field of three-dimensional model simulation processing, and discloses a model pretreatment method for turbomachinery, which comprises the following steps of: obtaining a three-dimensional model of a turbomachinery structure, and simplifying the three-dimensional model; extracting a turbomachine fluid domain, and dividing the turbomachine fluid domain into a plurality of dynamic domains and a plurality of static domains; according to the divided dynamic domain and static domain, different regional grids are divided respectively, and it is guaranteed that the quality of the common surface grids is consistent; combining all regional grids to form a complete grid of the fluid region; and setting corresponding boundary conditions according to the divided dynamic domain and static domain, and setting an interaction surface. The method has the beneficial effects that the rotation condition of the multi-stage impeller machine can be simulated more truly through the method of setting the multi-stage rotation domain, so that the simulation problem of the multi-stage rotation impeller machine is solved.

Description

technical field [0001] The invention relates to the technical field of three-dimensional model simulation processing, in particular to a model preprocessing method for a turbomachine. Background technique [0002] Computational fluid dynamics (CFD) is the product of the combination of modern fluid mechanics, numerical mathematics and computer science, and is an interdisciplinary science with strong vitality. It approximates the integral and differential terms in the governing equations of fluid mechanics into discrete algebraic forms, making it a system of algebraic equations, and then solves these discrete algebraic equations through a computer to obtain numerical values ​​at discrete time or space points untie. [0003] At present, CFD has been widely used in the design and optimization process of turbomachinery. The required numerical values ​​are calculated by simulating the fluid flow inside the turbomachinery through software to judge whether the design of the turboma...

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Application Information

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IPC IPC(8): G06F30/28G06F30/23G06T17/20G06F119/10
CPCG06F30/28G06F30/23G06T17/205G06F2119/10
Inventor 丁鹏程冯慧慧陈亚洲张磊
Owner HOHAI UNIV CHANGZHOU
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