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

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...

AI Technical Summary

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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