title: Ð§Ð¸ÑÐ»ÐµÐ½Ð½Ð¾Ðµ Ð¼Ð¾Ð´ÐµÐ»Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸Ðµ ÑÑÑÐ±ÑÐ»ÐµÐ½ÑÐ½Ð¾Ð³Ð¾ ÑÐµÑÐµÐ½Ð¸Ñ Ð¸ ÑÐµÐ¿Ð»Ð¾Ð¾Ð±Ð¼ÐµÐ½Ð° Ð² Ð¾ÑÐµÐ±ÑÐµÐ½Ð½ÑÑ ÐºÐ°Ð½Ð°Ð»Ð°Ñ
title: Ð²ÑÐ¿ÑÑÐºÐ½Ð°Ñ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° Ð¼Ð°Ð³Ð¸ÑÑÑÐ°
titleType: Subtitle
title: Numerical modeling of turbulent flow and heat transfer in ribbed channels
Creators: name: ÐÐ³Ð½Ð°ÑÑÐµÐ², ÐÐ²Ð°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: 2024
Subjects: ÐÐ°ÑÐµÐ¼Ð°ÑÐ¸ÑÐµÑÐºÐ¾Ðµ Ð¼Ð¾Ð´ÐµÐ»Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸Ðµ
Ð¢ÑÑÐ±ÑÐ»ÐµÐ½ÑÐ½Ð¾Ðµ ÑÐµÑÐµÐ½Ð¸Ðµ
ÑÐµÑÐµÐ½Ð¸Ðµ Ð² ÐºÐ°Ð½Ð°Ð»Ðµ
Ð²Ð½ÑÑÑÐµÐ½Ð½ÐµÐµ Ð¾ÑÐµÐ±ÑÐµÐ½Ð¸Ðµ
ÑÐ¾Ð¿ÑÐ¾ÑÐ¸Ð²Ð»ÐµÐ½Ð¸Ðµ
ÑÐµÐ¿Ð»Ð¾Ð¾ÑÐ´Ð°ÑÐ°
duct flow
internal ribbing
flow resistance
heat transfer

description: ÐÐ°Ð³Ð¸ÑÑÐµÑÑÐºÐ°Ñ Ð´Ð¸ÑÑÐµÑÑÐ°ÑÐ¸Ñ Ð¿Ð¾ÑÐ²ÑÑÐµÐ½Ð° Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ñ ÑÐµÑÐµÐ½Ð¸Ñ Ð² Ð¾ÑÐµÐ±ÑÐµÐ½Ð½ÑÑ ÐºÐ°Ð½Ð°Ð»Ð°Ñ Ð¸ Ð²Ð»Ð¸ÑÐ½Ð¸Ñ ÑÑÑÐ°Ð½Ð¾Ð²ÐºÐ¸ Ð¾ÑÐµÐ±ÑÐµÐ½Ð¸Ñ Ð½Ð° ÑÐµÐ¿Ð»Ð¾Ð³Ð¸Ð´ÑÐ°Ð²Ð»Ð¸ÑÐµÑÐºÐ¸Ðµ ÑÐ°ÑÐ°ÐºÑÐµÑÐ¸ÑÑÐ¸ÐºÐ¸ Ð¸ÑÑÐ»ÐµÐ´ÑÐµÐ¼ÑÑ ÐºÐ°Ð½Ð°Ð»Ð¾Ð². ÐÐ´Ð½Ð° Ð¸Ð· ÑÐ°ÑÑÐ¼Ð°ÑÑÐ¸Ð²Ð°ÐµÐ¼ÑÑ Ð·Ð°Ð´Ð°Ñ â Ð¾ Ð¿ÐµÑÐ¸Ð¾Ð´Ð¸ÑÐµÑÐºÐ¾Ð¼ ÑÑÑÐ±ÑÐ»ÐµÐ½ÑÐ½Ð¾Ð¼ ÑÐµÑÐµÐ½Ð¸Ð¸ Ð² Ð¿ÑÑÐ¼Ð¾Ð»Ð¸Ð½ÐµÐ¹Ð½Ð¾Ð¼ ÐºÐ°Ð½Ð°Ð»Ðµ Ñ Ð¾Ð´Ð½Ð¾ÑÑÐ¾ÑÐ¾Ð½Ð½Ð¸Ð¼ Ð¾ÑÐµÐ±ÑÐµÐ½Ð¸ÐµÐ¼. ÐÑÐ¾Ð¸Ð·Ð²ÐµÐ´ÐµÐ½ ÑÐ°ÑÑÐµÑ Ð¿ÑÐ¸ Ð½ÐµÑÐºÐ¾Ð»ÑÐºÐ¸Ñ Ð·Ð½Ð°ÑÐµÐ½Ð¸ÑÑ ÑÐ¸ÑÐ»Ð° Ð ÐµÐ¹Ð½Ð¾Ð»ÑÐ´ÑÐ°, Ð° ÑÐ°ÐºÐ¶Ðµ Ð¿ÑÐ¾Ð²ÐµÐ´ÐµÐ½Ð¾ Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ðµ Ð²Ð»Ð¸ÑÐ½Ð¸Ñ ÑÐ°Ð·Ð¼ÐµÑÐ° ÑÐ°ÑÑÐµÑÐ½Ð¾Ð¹ ÑÐµÑÐºÐ¸ Ð½Ð° Ð»Ð¾ÐºÐ°Ð»ÑÐ½ÑÐµ Ð¸ Ð¸Ð½ÑÐµÐ³ÑÐ°Ð»ÑÐ½ÑÐµ Ð¿Ð°ÑÐ°Ð¼ÐµÑÑÑ ÑÐµÑÐµÐ½Ð¸Ñ Ð¸ ÑÐµÐ¿Ð»Ð¾Ð¾Ð±Ð¼ÐµÐ½Ð°. ÐÐ¾Ð»ÑÑÐµÐ½Ð½ÑÐµ ÑÐµÐ·ÑÐ»ÑÑÐ°ÑÑ ÑÐ¾Ð¿Ð¾ÑÑÐ°Ð²Ð»ÐµÐ½Ñ Ñ Ð»Ð¸ÑÐµÑÐ°ÑÑÑÐ½ÑÐ¼Ð¸ ÑÐºÑÐ¿ÐµÑÐ¸Ð¼ÐµÐ½ÑÐ°Ð»ÑÐ½ÑÐ¼Ð¸ Ð´Ð°Ð½Ð½ÑÐ¼Ð¸. ÐÑÐ¾ÑÐ°Ñ Ð·Ð°Ð´Ð°ÑÐ° â Ð¾ ÑÑÑÐ±ÑÐ»ÐµÐ½ÑÐ½Ð¾Ð¼ ÑÐµÑÐµÐ½Ð¸Ð¸ Ð² U-Ð¾Ð±ÑÐ°Ð·Ð½Ð¾Ð¼ ÐºÐ°Ð½Ð°Ð»Ðµ Ñ Ð´Ð²ÑÑÑÑÐ¾ÑÐ¾Ð½Ð½Ð¸Ð¼ Ð¾ÑÐµÐ±ÑÐµÐ½Ð¸ÐµÐ¼, Ð¿ÑÐ¾ÑÐ¾ÑÐ¸Ð¿Ð¾Ð¼ ÐºÐ¾ÑÐ¾ÑÐ¾Ð³Ð¾ ÑÐ²Ð»ÑÐµÑÑÑ ÑÐºÑÐ¿ÐµÑÐ¸Ð¼ÐµÐ½ÑÐ°Ð»ÑÐ½Ð¾ Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð½ÑÐ¹ ÐºÐ°Ð½Ð°Ð»; Ð¿ÑÐ¾Ð¸Ð·Ð²ÐµÐ´ÐµÐ½Ð¾ ÑÐ¾Ð¿Ð¾ÑÑÐ°Ð²Ð»ÐµÐ½Ð¸Ðµ Ñ ÑÐºÑÐ¿ÐµÑÐ¸Ð¼ÐµÐ½ÑÐ°Ð»ÑÐ½ÑÐ¼Ð¸ Ð´Ð°Ð½Ð½ÑÐ¼Ð¸. ÐÐ° Ð¾ÑÐ½Ð¾Ð²Ðµ ÑÐ¸ÑÐ»ÐµÐ½Ð½ÑÑ Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ð¹ Ð´Ð»Ñ Ð¿ÑÑÐ¼Ð¾Ð»Ð¸Ð½ÐµÐ¹Ð½Ð¾Ð³Ð¾ ÐºÐ°Ð½Ð°Ð»Ð° Ð¿ÑÐµÐ´Ð»Ð¾Ð¶ÐµÐ½ Ð¸ Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½ Ð²Ð°ÑÐ¸Ð°Ð½Ñ ÐºÐ¾Ð½ÑÐ¸Ð³ÑÑÐ°ÑÐ¸Ð¸ Ð³ÐµÐ¾Ð¼ÐµÑÑÐ¸Ð¸ Ð¾ÑÐµÐ±ÑÐµÐ½Ð¸Ñ, ÑÐ»ÑÑÑÐ°ÑÑÐ¸Ð¹ ÑÐµÐ¿Ð»Ð¾Ð³Ð¸Ð´ÑÐ°Ð²Ð»Ð¸ÑÐµÑÐºÐ¸Ðµ ÑÐ°ÑÐ°ÐºÑÐµÑÐ¸ÑÑÐ¸ÐºÐ¸ ÐºÐ°Ð½Ð°Ð»Ð° Ñ Ð¿Ð¾Ð²Ð¾ÑÐ¾ÑÐ¾Ð¼.
description: The masters thesis is devoted to the study of ribbed channels flow and the effect of ribbing on the thermohydraulic characteristics of the channels. One of the problems under consideration is the periodic turbulent flow in a rectilinear channel with oneâsided ribbing. Numerical modeling is performed for several values of the Reynolds number, the influence of the computational grid size on the local and integral parameters of flow and heat transfer is studied. The obtained results are compared with the literature experimental data. The second problem is about the turbulent flow in a Uâshaped channel with double-sided ribbing, the prototype of which is the experimentally studied channel; a comparison with experimental data is made. Based on numerical studies for a rectilinear channel, a variant of the rib geometry configuration which improves the thermohydraulic characteristics of the Uâshaped channel is proposed and investigated.