Step length determination method for calculating motion trail of water drop and storage medium

A motion trajectory and determination method technology, which is applied in the step size determination method for calculating the motion trajectory of water droplets and the field of storage media, can solve the problems of small calculation amount and cannot meet high precision at the same time, and achieves reduction of calculation amount and time step. The effect of long and improved calculation accuracy

Active Publication Date: 2022-08-05
SICHUAN UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In this way, it can effectively solve the problem that the existing technology cannot satisfy high precision and small calculation amount at the same time when obtaining the trajectory of water droplets.

Method used

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  • Step length determination method for calculating motion trail of water drop and storage medium
  • Step length determination method for calculating motion trail of water drop and storage medium
  • Step length determination method for calculating motion trail of water drop and storage medium

Examples

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Effect test

Embodiment 1

[0026] Please refer to figure 1 , figure 1 This is a schematic flowchart of a method for determining a step size for calculating a motion trajectory of a water drop provided in Embodiment 1 of the present application. In this embodiment, the step size determination method for calculating the motion trajectory of water droplets may include the following steps:

[0027] Step S110: Acquire a single-step error at the current time step according to the variation of the motion parameter of the water droplet at the previous time step and the variation of the motion parameter of the current time step.

[0028] In the embodiment of this application, as figure 2 As shown, the far-field plane releases water droplets, and these water droplets may hit the object surface. The Lagrangian method determines whether each water droplet will hit the object surface by obtaining the motion trajectory of each water droplet released by the far-field plane. The movement trajectory of the water dro...

Embodiment 2

[0064] Please refer to Image 6 , Image 6 A structural block diagram of a computer-readable storage medium provided in Embodiment 2 of the present application is shown. The computer-readable storage medium 600 stores program codes, and the program codes can be invoked by the processor to execute the methods described in the above method embodiments.

[0065] The computer-readable storage medium 600 may be an electronic memory such as flash memory, EEPROM (Electrically Erasable Programmable Read Only Memory), EPROM (Erasable Programmable Read Only Memory), hard disk, or ROM. Optionally, the computer-readable storage medium 600 includes a non-transitory computer-readable storage medium (non-transitory computer-readable storage medium). Computer readable storage medium 600 has storage space for program code 610 to perform any of the method steps in the above-described methods. The program codes can be read from or written to one or more computer program products. Program code ...

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Abstract

The embodiment of the invention discloses a step length determination method for calculating a water drop movement track and a storage medium, and relates to the technical field of water drop impact characteristic research. The method comprises the following steps: acquiring a single-step error under a current time step according to a motion parameter variable quantity of a previous time step of a water drop and a motion parameter variable quantity of the current time step; if the single-step error under the current time step is smaller than the minimum value of the preset interval, increasing the value of the current time step as the value of the next time step; and if the single-step error under the current time step length is within a preset interval, taking the value of the current time step length as the value of the next time step length. By means of the method, the problem that when the motion trail of the water drop is obtained in the prior art, high precision and small calculated amount cannot be met at the same time can be solved.

Description

technical field [0001] The present application relates to the technical field of research on the impact characteristics of water droplets, and more particularly, to a method for determining a step size and a storage medium for calculating the motion trajectory of water droplets. Background technique [0002] When the aircraft passes through the clouds, the supercooled water droplets may undergo a phase change and cause icing after hitting the airframe. Icing will change the shape of the aircraft and the flow field around it, destroy the aerodynamic performance, reduce the maneuverability and stability, threaten the flight safety, and lead to air accidents in severe cases. The water droplet collection rate can quantitatively characterize the water droplets impacting objects, and is an important parameter to study the impact characteristics of water droplets. Therefore, the water droplet collection rate can be used to study the characteristics of aircraft icing, and can also ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/18
CPCG06F17/18Y02T90/00
Inventor 周志宏熊华杰易贤曾涛陈宇李英琪
Owner SICHUAN UNIV
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