title: Ð§Ð¸ÑÐ»ÐµÐ½Ð½Ð¾Ðµ Ð¼Ð¾Ð´ÐµÐ»Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸Ðµ Ð³Ð¸Ð´ÑÐ°Ð²Ð»Ð¸ÑÐµÑÐºÐ¸Ñ Ð¿ÑÐ¾ÑÐµÑÑÐ¾Ð² Ð² Ð¢ÐÐ¡ Ð ÐÐ¢Ð-200
title: Ð²ÑÐ¿ÑÑÐºÐ½Ð°Ñ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° Ð±Ð°ÐºÐ°Ð»Ð°Ð²ÑÐ°
titleType: Subtitle
title: Numerical modeling of hydraulic processes in RITM-200 fuel assemblies
Creators: name: Ð¨Ð°ÑÐ¸Ð¿Ð¾Ð², ÐÐ°Ð½Ð¸Ð»
Publisher: name: Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³ÑÐºÐ¸Ð¹ Ð¿Ð¾Ð»Ð¸ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ½Ð¸Ð²ÐµÑÑÐ¸ÑÐµÑ ÐÐµÑÑÐ° ÐÐµÐ»Ð¸ÐºÐ¾Ð³Ð¾
Year: 2023
Subjects: Ð ÐÐ¢Ð-200
ÑÐ¸ÑÐ»ÐµÐ½Ð½Ð¾Ðµ Ð¼Ð¾Ð´ÐµÐ»Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸Ðµ
Ð¢ÐÐ¡
ÑÑÑÐ±ÑÐ»ÐµÐ½ÑÐ½Ð¾ÑÑÑ
Ð½ÐµÑÐ°Ð²Ð½Ð¾Ð¼ÐµÑÐ½Ð¾ÑÑÑ Ð¿Ð¾ÑÐ¾ÐºÐ° Ð¶Ð¸Ð´ÐºÐ¾ÑÑÐ¸
RITM-200
numerical simulation
turbulence
irregularity of fluid flow

description: Ð¢ÐµÐ¼Ð° Ð²ÑÐ¿ÑÑÐºÐ½Ð¾Ð¹ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð¾Ð¹ ÑÐ°Ð±Ð¾ÑÑ: Â«Ð§Ð¸ÑÐ»ÐµÐ½Ð½Ð¾Ðµ Ð¼Ð¾Ð´ÐµÐ»Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸Ðµ Ð³Ð¸Ð´ÑÐ°Ð²Ð»Ð¸ÑÐµÑÐºÐ¸Ñ Ð¿ÑÐ¾ÑÐµÑÑÐ¾Ð² Ð² Ð¢ÐÐ¡ Ð ÐÐ¢Ð-200Â». ÐÑÐ¸Ð¼ÐµÐ½ÐµÐ½Ð¸Ðµ CAE-ÑÐ¸ÑÑÐµÐ¼ (Computer-Aided Engineering) Ð¿Ð¾Ð·Ð²Ð¾Ð»ÑÐµÑ Ð°Ð²ÑÐ¾Ð¼Ð°ÑÐ¸Ð·Ð¸ÑÐ¾Ð²Ð°ÑÑ Ð¸Ð½Ð¶ÐµÐ½ÐµÑÐ½ÑÐµ ÑÐ°ÑÑÐµÑÑ, ÑÐ½Ð¸Ð·Ð¸ÑÑ ÑÐµÐ±ÐµÑÑÐ¾Ð¸Ð¼Ð¾ÑÑÑ Ð¿ÑÐ¾Ð´ÑÐºÑÐ¸Ð¸ Ð·Ð° ÑÑÐµÑ Ð²Ð¾Ð·Ð¼Ð¾Ð¶Ð½Ð¾ÑÑÐ¸ Ð²Ð¸ÑÑÑÐ°Ð»ÑÐ½Ð¾Ð³Ð¾ Ð¼Ð¾Ð´ÐµÐ»Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸Ñ Ð¸ ÑÐµÑÑÐ¸ÑÐ¾Ð²Ð°ÑÑ Ð¿ÑÐ¾ÐµÐºÑÐ°, Ð° ÑÐ°ÐºÐ¶Ðµ ÑÐ»ÑÑÑÐµÐ½Ð¸Ñ ÐºÐ°ÑÐµÑÑÐ²Ð° Ð¿ÑÐ¾Ð´ÑÐºÑÐ¸Ð¸ Ð·Ð° ÑÑÐµÑ Ð²ÑÑÐ²Ð»ÐµÐ½Ð¸Ñ Ð¸ ÑÑÑÑÐ°Ð½ÐµÐ½Ð¸Ñ Ð¿Ð¾ÑÐµÐ½ÑÐ¸Ð°Ð»ÑÐ½ÑÑ Ð¿ÑÐ¾Ð±Ð»ÐµÐ¼ Ð½Ð° ÑÐ°Ð½Ð½Ð¸Ñ ÑÑÐ°Ð¿Ð°Ñ Ð¿ÑÐ¾ÑÐµÑÑÐ° Ð¿ÑÐ¾ÐµÐºÑÐ¸ÑÐ¾Ð²Ð°Ð½Ð¸Ñ. Ð Ð´Ð°Ð½Ð½ÑÑ ÑÐ¸ÑÑÐµÐ¼Ð°Ñ Ð¸ÑÐ¿Ð¾Ð»ÑÐ·ÑÑÑÑÑ Ð¼Ð°ÑÐµÐ¼Ð°ÑÐ¸ÑÐµÑÐºÐ¸Ðµ Ð¼Ð¾Ð´ÐµÐ»Ð¸ Ð´Ð»Ñ Ð¾Ð¿Ð¸ÑÐ°Ð½Ð¸Ñ ÑÐµÐ°Ð»ÑÐ½ÑÑ ÑÐ¸Ð·Ð¸ÑÐµÑÐºÐ¸Ñ Ð¿ÑÐ¾ÑÐµÑÑÐ¾Ð² Ð¸ ÑÐ²Ð»ÐµÐ½Ð¸Ð¹. Ð Ð´Ð°Ð½Ð½Ð¾Ð¹ ÑÐ°Ð±Ð¾ÑÐµ Ð¿ÑÐ¾Ð¸Ð·Ð²Ð¾Ð´Ð¸ÑÑÑ ÑÐ¸ÑÐ»ÐµÐ½Ð½Ð¾Ðµ Ð¼Ð¾Ð´ÐµÐ»Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸Ðµ Ð³Ð¸Ð´ÑÐ°Ð²Ð»Ð¸ÑÐµÑÐºÐ¸Ñ Ð¿ÑÐ¾ÑÐµÑÑÐ¾Ð² Ð² Ð¢ÐÐ¡ Ð ÐÐ¢Ð-200 Ð´Ð»Ñ Ð¾Ð±Ð½Ð°ÑÑÐ¶ÐµÐ½Ð¸Ñ Ð¸ÑÑÐ¾ÑÐ½Ð¸ÐºÐ¾Ð² Ð½ÐµÐ¾Ð´Ð½Ð¾ÑÐ¾Ð´Ð½Ð¾ÑÑÐ¸ Ð¿Ð¾ÑÐ¾ÐºÐ° Ð² Ð°ÐºÑÐ¸Ð²Ð½Ð¾Ð¹ Ð·Ð¾Ð½Ðµ ÑÐµÐ°ÐºÑÐ¾ÑÐ°. ÐÐ°Ð´Ð°ÑÐ¸, ÐºÐ¾ÑÐ¾ÑÑÐµ ÑÐµÑÐ°ÑÑÑÑ Ð² ÑÐ¾Ð´Ðµ Ð²ÑÐ¿Ð¾Ð»Ð½ÐµÐ½Ð¸Ñ ÑÐ°Ð±Ð¾ÑÑ: 1. ÐÑÐ¿Ð¾Ð»Ð½ÐµÐ½Ð¸Ðµ ÑÐ¸ÑÐ»ÐµÐ½Ð½Ð¾Ð³Ð¾ Ð¼Ð¾Ð´ÐµÐ»Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸Ñ Ð¿ÑÐ¾ÑÐµÑÑÐ¾Ð² Ð»Ð¾ÐºÐ°Ð»ÑÐ½Ð¾Ð¹ Ð³Ð¸Ð´ÑÐ¾Ð´Ð¸Ð½Ð°Ð¼Ð¸ÐºÐ¸ ÑÐµÑÐµÐ½Ð¸Ñ ÑÐµÐ¿Ð»Ð¾Ð½Ð¾ÑÐ¸ÑÐµÐ»Ñ Ð²Ð¾ Ð²ÑÐ¾Ð´Ð½Ð¾Ð¼ ÑÑÐ°ÑÑÐºÐµ ÐºÐ°ÑÑÐµÑÑ Ñ Ð¿Ð¾Ð¼Ð¾ÑÑÑ Ansys Fluent. 2. Ð£ÑÑÐ°Ð½Ð¾Ð²Ð»ÐµÐ½Ð¸Ðµ Ð¸ÑÑÐ¾ÑÐ½Ð¸ÐºÐ¸ Ð½ÐµÑÐ°Ð²Ð½Ð¾Ð¼ÐµÑÐ½Ð¾ÑÑÐ¸ Ð¿Ð¾ÑÐ¾ÐºÐ°. 3. ÐÑÐµÐ´Ð»Ð¾Ð¶ÐµÐ½Ð¸Ðµ Ð¼ÐµÑ Ð¿Ð¾ ÑÐ»ÑÑÑÐµÐ½Ð¸Ñ Ð³Ð¸Ð´ÑÐ¾Ð´Ð¸Ð½Ð°Ð¼Ð¸ÑÐµÑÐºÐ¸Ñ ÑÑÐ»Ð¾Ð²Ð¸Ð¹ Ð²ÑÐ¾Ð´Ð°. ÐÐ¾ ÑÐµÐ·ÑÐ»ÑÑÐ°ÑÐ°Ð¼ Ð¼Ð¾Ð´ÐµÐ»Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸Ñ Ð¾Ð¿ÑÐµÐ´ÐµÐ»ÐµÐ½Ñ ÑÑÐµÐ´Ð½ÑÑ Ð°ÐºÑÐ¸Ð°Ð»ÑÐ½Ð°Ñ ÑÐºÐ¾ÑÐ¾ÑÑÑ Ð² ÑÐ°Ð·Ð»Ð¸ÑÐ½ÑÑ ÑÐµÑÐµÐ½Ð¸ÑÑ Ð¢ÐÐ¡. ÐÐ°Ð½Ð½ÑÐ¹ ÐºÑÐ¸ÑÐµÑÐ¸Ð¹ ÑÐµÐ»ÐµÑÐ¾Ð¾Ð±ÑÐ°Ð·Ð½Ð¾ Ð¸ÑÐ¿Ð¾Ð»ÑÐ·Ð¾Ð²Ð°ÑÑ Ð´Ð»Ñ ÑÑÐµÑÐ° Ð½ÐµÑÐ°Ð²Ð½Ð¾Ð¼ÐµÑÐ½Ð¾ÑÑÐ¸ ÑÐ°ÑÐ¿ÑÐµÐ´ÐµÐ»ÐµÐ½Ð¸Ñ Ð¿ÑÐ¾ÑÐ¸Ð»Ñ ÑÐºÐ¾ÑÐ¾ÑÑÐ¸ ÑÐµÐ¿Ð»Ð¾Ð½Ð¾ÑÐ¸ÑÐµÐ»Ñ Ð¿Ð¾ Ð¿Ð¾Ð¿ÐµÑÐµÑÐ½Ð¾Ð¼Ñ ÑÐµÑÐµÐ½Ð¸Ñ. ÐÐ° Ð¾ÑÐ½Ð¾Ð²Ð°Ð½Ð¸Ð¸ ÑÐµÐ·ÑÐ»ÑÑÐ°ÑÐ¾Ð² ÑÐ°ÑÑÐµÑÐ° Ð±ÑÐ»Ð¸ Ð¿ÑÐµÐ´Ð»Ð¾Ð¶ÐµÐ½Ñ Ð¼ÐµÑÑ Ð¿Ð¾ ÑÐ»ÑÑÑÐµÐ½Ð¸Ñ Ð³Ð¸Ð´ÑÐ¾Ð´Ð¸Ð½Ð°Ð¼Ð¸ÑÐµÑÐºÐ¸Ñ ÑÑÐ»Ð¾Ð²Ð¸Ð¹ Ð²ÑÐ¾Ð´Ð°. ÐÑÐ¾Ð¸Ð·Ð²ÐµÐ´ÐµÐ½ Ð¿ÐµÑÐµÑÐ°ÑÑÐµÑ Ñ Ð½Ð¾Ð²Ð¾Ð¹ Ð³ÐµÐ¾Ð¼ÐµÑÑÐ¸ÐµÐ¹.
description: The topic of the final qualifying work: "Numerical modeling of hydraulic processes in RITM-200 fuel assemblies". The use of CAE-systems (Computer-Aided Engineering) allows automatizing engineering calculations, reducing product costs by means of virtual modeling and design testing, as well as improving product quality by identifying and eliminating potential problems at early stages of the design process. These systems use mathematical models to describe real physical processes and phenomena. This paper employs the numerical simulation of hydraulic processes in a RITM-200 fuel assembly with the purpose of detecting the sources of inhomogeneous flows in the reactor core. The tasks to be solved in the course of the work are as follows: 1. Numerical simulation of processes of local fluid dynamics of coolant flow in the inlet section of the cassette using Ansys Fluent. 2. Identification of sources of flow irregularity. 3. Suggesting measures for improving hydrodynamic conditions of the inlet. Based on the simulation results, the average axial velocity in various sections of the fuel assemblies is determined. It is reasonable to use this criterion to take into account the non-uniformity of the coolant velocity profile distribution over the crosssection. Based on the calculation results, measures to improve the hydrodynamic conditions of the inlet were proposed. Recalculation with new geometry was performed.