Investigation of the influence of gravitational forces on the thermal-hydraulic processes of power plants

Sataev, A.A.; Андреев, В. В.; Duntsev, A. V.; Novikov, Denis; Berezin, A. A.

doi:10.1088/1757-899x/1035/1/012036

Cited by 2 publications

(1 citation statement)

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“…In addition, we have investigated these processes in relation to ship nuclear power plants. [4], [5]. The entire ship, as well as the reactor plant installed on it, is practically constantly under the influence of various external dynamic forces that affect its spatial orientation, both in normal operation and especially in emergency situations.…”

Section: Introductionmentioning

confidence: 99%

Visualization of Non-Isothermal Liquids Mixing Processes Under the Influence of External Forces

Sataev

Андреев

2021

Proceedings of the 31th International Conference on Computer Graphics and Vision. Volume 2

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The paper presents a visualization of the mixing processes of non-isothermal flows in the model of a ship's nuclear power plant under static and dynamic modes. The values obtained at the experimental stand served as the database for visualization. It is a four-loop model of the flow part of a ship's nuclear power plant. To create a dynamic mode (oscillations in one plane), the model is placed on a swinging platform. This paper shows the processes occurring during periodic pitching with a period of 4 seconds and amplitude of 15 degrees. The descending annular section of the circulation tract was chosen as the object of research. Then the resulting database was visualized using the 3DFieldPro program, where a color scale was matched to the temperature data and model coordinates, and also with the help of the OpenCV library with a high-level implementation program С++, the characteristic hot/cold vortices (spots), the boundary of the mixing process, its character in static mode (without fluctuations) and dynamic mode were analyzed. The uneven mixing process was noted, especially in the dynamic mode. The resulting tools allow you to quickly and clearly visualize these processes.

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Section: Introductionmentioning

confidence: 99%

Visualization of Non-Isothermal Liquids Mixing Processes Under the Influence of External Forces

Sataev

Андреев

2021

Proceedings of the 31th International Conference on Computer Graphics and Vision. Volume 2

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Methodology of Visualization of non-Isothermal Mixing Processes Under the Influence of External Dynamic Forces

Sataev

Андреев

2022

Proceedings of the 32nd International Conference on Computer Graphics and Vision

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This article considers the problem of taking into account the influence of a change in spatial orientation on thermal-hydraulic processes. To obtain the parameters of non-isothermal mixing and create a database of these processes, first of all, an experimental method was used to study these processes on a small-scale model. The obtained parameters were visualized and further graphic images were analyzed using the OpenCV library (Open Source Computer Vision Library - an open source computer vision library). A new approach to visualization of mixing processes of non- isothermal flows is proposed. The result of this analysis was the integral and local characteristics of the process of non-isothermal mixing of flows. To assess the degree of influence of a change in the nature of the problem on the integral characteristics of the process of mixing of non-isothermal flows, a series of experiments was carried out for various types of problems. The research is limited by the scale of the model, and there is also a need to develop other criteria for assessing the nonisothermal mixing of flows under the influence of external forces. The value of the article is a new approach to the evaluation of non-isothermal mixing processes. The analysis of the obtained images makes it possible to study the process of non-stationary heat transfer under the conditions of external dynamic influences and to identify areas of non-uniform mixing.

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Investigation of the influence of gravitational forces on the thermal-hydraulic processes of power plants

Cited by 2 publications

References 1 publication

Visualization of Non-Isothermal Liquids Mixing Processes Under the Influence of External Forces

Visualization of Non-Isothermal Liquids Mixing Processes Under the Influence of External Forces

Methodology of Visualization of non-Isothermal Mixing Processes Under the Influence of External Dynamic Forces

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