Calculation method and device for pressure field, and storage medium

A pressure field and flow field technology, applied in the field of pressure field calculation methods and equipment, can solve the problems of low pressure field accuracy, complicated calculation steps, low resolution, etc., achieve high calculation efficiency, avoid resolution reduction, error small effect

Active Publication Date: 2021-07-09
ZHEJIANG UNIV
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Problems solved by technology

[0004] However, the PIV-based pressure field measurement method has cumbersome calculation steps, large errors and low resolution, which lead to the defect of low precision of the pressure field obtained by calculation.

Method used

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  • Calculation method and device for pressure field, and storage medium
  • Calculation method and device for pressure field, and storage medium
  • Calculation method and device for pressure field, and storage medium

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Embodiment Construction

[0038] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. It should be understood that the specific embodiments described here are only used to explain the related application, not to limit the application. It should also be noted that, for the convenience of description, only the parts related to the relevant application are shown in the drawings.

[0039] At present, in the field of modern fluid mechanics, PIV technology plays a very important role in the process of flow field velocity measurement and analysis due to its high reliability, diverse uses and wide measurement range. specific, figure 1 It is a schematic diagram of the calculation process of the PIV flow field velocity measurement technology in the related technology, such as figure 1 As shown, the method for calculating the pressure field in PIV technology mainly incl...

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Abstract

The embodiment of the present application discloses a pressure field calculation method and equipment, and a storage medium. The pressure field calculation method includes: generating training sample data; wherein, the training sample data is a noise particle image sequence with a pressure field label; constructing an initial A prediction model; wherein, the input dimension and the output dimension of the initial prediction model are the same; the initial prediction model is trained using training sample data to obtain a pressure field prediction model; and the target pressure field corresponding to the particle image to be measured is determined according to the pressure field prediction model.

Description

technical field [0001] The invention relates to the technical field of laser speed measurement in fluid mechanics, in particular to a pressure field calculation method and equipment, and a storage medium. Background technique [0002] At present, in the field of modern fluid mechanics, Particle Image Velocimetry (PIV) technology plays a very important role in the flow field velocimetry analysis process due to its high reliability, diverse uses and wide measurement range. [0003] Specifically, PIV uniformly disperses markers such as particles or bubbles in the flow field, uses a camera to record the trajectory of the markers, and then processes the images through the principle of autocorrelation or cross-correlation to obtain the velocity information of the flow field. Furthermore, according to the velocity field data measured by PIV, the flow field pressure field corresponding to the PIV velocity field can be obtained by combining the fluid mechanics governing equations (N-...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F30/25G06F30/27G06F30/28G06F113/08G06F119/14
CPCG06F30/25G06F30/27G06F30/28G06F2113/08G06F2119/14
Inventor 高琪
Owner ZHEJIANG UNIV
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