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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: Calculation of stationary metastable states of a two-dimensional laminar jet flowing into a limited space
Creators: name: ÐÐ°ÑÐ»Ð°Ð¼Ð¾Ð², Ð Ð¾Ð¼Ð°Ð½
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: 2022
Subjects: ÐºÐ°Ð½Ð°Ð» Ñ Ð²Ð½ÐµÐ·Ð°Ð¿Ð½ÑÐ¼ ÑÐ°ÑÑÐ¸ÑÐµÐ½Ð¸ÐµÐ¼
ÑÐºÐ¾ÑÐµÐ½Ð½ÑÐ¹ Ð²Ñ Ð¾Ð´
Ð±Ð¸ÑÑÑÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð°Ñ Ð´Ð¸Ð°Ð³ÑÐ°Ð¼Ð¼Ð°
Ð·Ð¾Ð½Ñ Ð¾Ð±ÑÐ°ÑÐ½Ð¾Ð³Ð¾ ÑÐµÑÐµÐ½Ð¸Ñ
channel with a sudden expansion
sloped inlet
bifurcation diagram
reverse flow zones

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description: Topic of the final qualification work: "Calculation of stationary metastable states of a two-dimensional laminar jet flowing into a limited space". This work is devoted to the numerical study of a laminar flow of a jet nature in a channel with a sudden expansion of 1:3. The influence on the transition of the flow to asymmetric one was studied when a controlled deviation from symmetrical conditions was introduced into the considered configuration when the problem was formulated, namely, by introducing a small slope of the flow entry into the region of jet development. The influence of the inlet slope on the dependences of the coordinates of the formed separation zones on the Reynolds number was also studied.Numerical simulation was carried out using the FLOS educational and research software package developed at the Department of Hydroaerodynamics of SPbPU. The paper presents the velocity fields for various Reynolds numbers and flow entry angles, as well as the calculated dependences for the coordinates of the critical points of the reverse flow zones. A comparison with literature data is made for the initial configuration with a normal (symmetrical) entry into the expansion region.