HEAT-TRANSFER CONTROL BY USING JET DISCHARGE IN REATTACHMENT REGION DOWNSTREAM OF A BACKWARD-FACING STEP

被引:11
|
作者
OYAKAWA, K [1 ]
TAIRA, T [1 ]
SENAHA, I [1 ]
NOSOKO, T [1 ]
HIWADA, M [1 ]
机构
[1] GIFU UNIV,DEPT MECH ENGN,GIFU 50111,JAPAN
关键词
D O I
10.1016/0735-1933(95)00025-T
中图分类号
O414.1 [热力学];
学科分类号
摘要
The effect of an air jet perpendicular to the main flow across a backward-facing step on the local heat transfer and pressure coefficients was investigated. The relative height of the step and the position and velocity of the jet were varied, with the aim of controlling the heat transfer characteristics. The exit of the jet was set into the wall opposite the step, and created a bubble of circulating air downstream. The reattachment region of the main flow shifted upstream when the jet was moved upstream or its velocity increased in the case of jet located downstream of step, enhancing the heat transfer. When the jet was located nearly opposite the step, a bistable flow pattern was observed, characterized by different sizes of circulating bubble which created different heat transfer and pressure distributions.
引用
收藏
页码:343 / 352
页数:10
相关论文
共 50 条
  • [22] Fluid flow with heat transfer downstream of a 3-D backward-facing step
    Carrington, DB
    Pepper, DW
    CHT'01: ADVANCES IN COMPUTATIONAL HEAT TRANSFER II, VOLS 1 AND 2, PROCEEDINGS, 2001, : 591 - 598
  • [23] Reattachment characteristics of a backward-facing step flow in a duct
    Suyama, Nobuyuki
    Yoshida, Takuo
    Inaoka, Kyoji
    Senda, Mamoru
    Nihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B, 2013, 79 (805): : 1764 - 1773
  • [24] The effect of appendages at step on heat transfer in a backward-facing step
    Nagarajan, P.
    Sundaram, S. Soma
    INTERNATIONAL COMMUNICATIONS IN HEAT AND MASS TRANSFER, 2024, 155
  • [25] MHD flow and heat transfer in a backward-facing step
    Abbassi, H.
    Ben Nassrallah, S.
    INTERNATIONAL COMMUNICATIONS IN HEAT AND MASS TRANSFER, 2007, 34 (02) : 231 - 237
  • [26] LES of heat transfer over a backward-facing step
    Labbé, O
    Montreuil, E
    Sagaut, P
    CHT'01: ADVANCES IN COMPUTATIONAL HEAT TRANSFER II, VOLS 1 AND 2, PROCEEDINGS, 2001, : 623 - 630
  • [27] Intensification of heat transfer behind the backward-facing step using tabs
    Terekhov, V. I.
    Dyachenko, A. Yu.
    Smulsky, Ya. J.
    Sunden, B.
    THERMAL SCIENCE AND ENGINEERING PROGRESS, 2022, 35
  • [28] Control of the separated flow downstream of a backward-facing step using visual feedback
    Gautier, N.
    Aider, J. -L.
    PROCEEDINGS OF THE ROYAL SOCIETY A-MATHEMATICAL PHYSICAL AND ENGINEERING SCIENCES, 2013, 469 (2160):
  • [29] Dielectric barrier discharge plasma actuator to control turbulent flow downstream of a backward-facing step
    Sujar-Garrido, P.
    Benard, N.
    Moreau, E.
    Bonnet, J. P.
    EXPERIMENTS IN FLUIDS, 2015, 56 (04)
  • [30] Dielectric barrier discharge plasma actuator to control turbulent flow downstream of a backward-facing step
    P. Sujar-Garrido
    N. Benard
    E. Moreau
    J. P. Bonnet
    Experiments in Fluids, 2015, 56