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A Calculation Method for the Target Release Position of Droplets on a Single Object Surface

A release position and calculation method technology, applied in design optimization/simulation, special data processing applications, CAD numerical modeling, etc., can solve problems such as unreliability, small number, and reduce the accuracy of water droplet collection rate interpolation results, and achieve simplification The effect of judging conditions, reducing the amount of calculation, and improving the calculation speed

Active Publication Date: 2021-12-07
LOW SPEED AERODYNAMIC INST OF CHINESE AERODYNAMIC RES & DEV CENT
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Problems solved by technology

However, in actual simulation, the distribution of droplet impact points is usually random and scattered and partly distributed on the wall, which results in uneven distribution or small number of sample points. If this is used as a calculation sample, it will greatly reduce the interpolation of the droplet collection rate The accuracy of the result, there is human intervention in the interpolation result, and it has a large unreliability

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  • A Calculation Method for the Target Release Position of Droplets on a Single Object Surface
  • A Calculation Method for the Target Release Position of Droplets on a Single Object Surface
  • A Calculation Method for the Target Release Position of Droplets on a Single Object Surface

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[0053] The following description provides many different embodiments, or examples, for implementing various features of the invention. The elements and arrangements described in the following specific examples are only used to express the present invention in a concise manner, and are only used as examples rather than limiting the present invention.

[0054] In describing the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", " The orientation or positional relationship indicated by "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying the referred device or Elements must have certain orientations, be constructed and operate in certain orientations, and therefore should not be construed as limitati...

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Abstract

The present invention is applicable to the technical field of droplet impact characteristic simulation, and provides a method for calculating the target release position of a droplet on a single surface, including the steps of: obtaining all grid corner point information and initial impact information, the initial impact point and any The distance between a grid corner point is less than the preset distance threshold; the adjacent impact information is obtained according to the initial impact information, and the distance between the adjacent impact point and any adjacent grid corner point is less than the preset distance threshold; the impact The corresponding release position of the point located on the single object surface is marked as the release position in the impact area; the corresponding release position of the impact point not located on the single object surface is marked as the release position of the impact boundary; the adjacent impact information is used as the initial impact information, until the single All the release positions in the impact information on the object surface are marked, and then the target release position of the droplet on the single object surface is obtained. The calculation method of the target release position provided by the present invention has the characteristics of simplicity, high efficiency, good robustness and high precision.

Description

technical field [0001] The invention belongs to the technical field of droplet impact characteristic simulation, and in particular relates to a method for calculating a target release position of a droplet on a single surface. Background technique [0002] Numerical simulation of icing in aircraft icing is an important means to study the characteristics of aircraft icing, and the calculation process of aircraft icing numerical calculation involves the calculation of surface droplet collection rate, and the calculation accuracy of droplet collection rate will directly affect to the accuracy of ice shape prediction results. At present, the numerical calculation models adopted for the droplet impact problem are usually divided into two categories: Lagrangian method and Euler method. [0003] In the prior art, the following two methods are usually used to improve the calculation efficiency of the three-dimensional droplet collection rate: ① describe the droplet array by establi...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F30/20G06F111/10
CPCG06F30/20G06F2111/10
Inventor 任靖豪易贤王强李维浩刘宇
Owner LOW SPEED AERODYNAMIC INST OF CHINESE AERODYNAMIC RES & DEV CENT
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