TURBULENT MIXED CONVECTION IN ASYMMETRICALLY HEATED VERTICAL CHANNEL

被引：3
|
作者：
Mokni, Ameni [1 ,2 ]
Mhiri, Hatem [2 ]
Le Palec, Georges [1 ]
Bournot, Philippe [1 ]
机构：
[1] IUSTI UMR CNRS, Marseille, France
[2] Ecole Natl Ingenieurs Monastir, Unite Therm & Environm, Monastir, Tunisia
来源：
THERMAL SCIENCE | 2012年 / 16卷 / 02期
关键词：
vertical channel; jet; asymmetric heating; mixed convection; NATURAL-CONVECTION; ENHANCEMENT; INFINITE; PLATES; FLOW;
D O I：
10.2298/TSCI090403018M
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
In this paper an investigation of mixed convection from vertical heated channel is undertaken. The aim is to explore the heat transfer obtained by adding a forced flow, issued from a flat nozzle located in the entry section of a channel, to the up-goingfluid along its walls. Forced and free convection are combined studied in order to increase the cooling requirements. The study deals with both symmetrically and asymmetrically heated channel. The Reynolds number based on the nozzle width and the jet velocity is assumed to be 3.10(3) and 2.10(4); whereas, the Rayleigh number based on the channel length and the wall temperature difference varies from 2.57-10(10) to 5.15-10(12). The heating asymmetry effect on the flow development including the mean velocity and temperature, the local Nusselt number, the mass flow rate, and heat transfer are examined.
引用
收藏
页码：503 / 512
页数：10
相关论文
共 50 条
  • [41] An experiment on thermosyphon boiling in uniformly heated vertical tube and asymmetrically heated vertical channel
    Jeon, JS
    Na, JH
    Park, HC
    Kwak, HY
    KSME INTERNATIONAL JOURNAL, 2001, 15 (01): : 98 - 107
  • [42] An experiment on thermosyphon boiling in uniformly heated vertical tube and asymmetrically heated vertical channel
    Jin-Seok Jeon
    Jung Hee Na
    Hong Chul Park
    Ho-Young Kwak
    KSME International Journal, 2001, 15 : 98 - 107
  • [43] Transient air natural convection in asymmetrically heated vertical channels
    Andreozzi, Assunta
    Buonomo, Bernardo
    Cascetta, Furio
    Manca, Oronzio
    INTERNATIONAL COMMUNICATIONS IN HEAT AND MASS TRANSFER, 2020, 116
  • [44] NUMERICAL STUDY OF TURBULENT FLOW IN ASYMMETRICALLY HEATED VERTICAL ANNULUS
    Shome, Biswadip
    COMPUTATIONAL THERMAL SCIENCES, 2021, 13 (02): : 75 - 90
  • [45] Numerical simulation of turbulent natural convection in vertical channel asymmetrically heat with constant heat flux
    Bennacer, R
    Hammami, T
    Mohamad, AA
    ADVANCED COMPUTATIONAL METHODS IN HEAT TRANSFER VI, 2000, 3 : 147 - 157
  • [46] Highly Resolved Simulations of Turbulent Mixed Convection in a Vertical Plane Channel
    Kath, Christian
    Wagner, Claus
    NEW RESULTS IN NUMERICAL AND EXPERIMENTAL FLUID MECHANICS X, 2016, 132 : 515 - 524
  • [47] Pressure behavior and heat transfer behavior of air natural convection in an asymmetrically heated vertical channel with a damper
    Kim, Koung Moon
    Lim, Sun Taek
    Kim, Seong Ho
    Kim, Haeseong
    Jerng, Dong-Wook
    Ahn, Ho Seon
    INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER, 2022, 188
  • [48] LOCALLY FULLY-DEVELOPED LAMINAR FREE-CONVECTION WITHIN ASYMMETRICALLY HEATED VERTICAL CHANNEL
    CHENG, CH
    KOU, HS
    HUANG, WH
    JSME INTERNATIONAL JOURNAL SERIES II-FLUIDS ENGINEERING HEAT TRANSFER POWER COMBUSTION THERMOPHYSICAL PROPERTIES, 1990, 33 (02): : 305 - 315
  • [49] Numerical study of turbulent flow in asymmetrically heated horizontal channel
    Shome, Biswadip
    INTERNATIONAL JOURNAL OF THERMAL SCIENCES, 2016, 103 : 10 - 23
  • [50] Mixed Convection Heat Transfer in a Partially Heated Parallel Plate Vertical Channel
    Celik, Hasan
    Mobedi, Moghtada
    2014 IEEE INTERSOCIETY CONFERENCE ON THERMAL AND THERMOMECHANICAL PHENOMENA IN ELECTRONIC SYSTEMS (ITHERM), 2014, : 666 - 672
12345