Heat transfer performance and the transition to chaos of mixed convection around an isothermally heated sphere placed in a uniform, downwardly directed flow

被引：8

作者：

Koizumi, H. ^{[1
]}

Umemura, Y. ^{[1
]}

Hando, S. ^{[1
]}

Suzuki, K. ^{[1
]}

机构：

[1] Univ Electrocommun, Dept Mech Engn & Intelligent Syst, Tokyo 1828585, Japan

来源：

INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER | 2010年 / 53卷 / 13-14期

关键词：

Mixed convection; Isothermal sphere; Heat transfer performance; Transition; Chaos; GRASHOF NUMBERS; SMALL REYNOLDS; TURBULENCE;

D O I：

10.1016/j.ijheatmasstransfer.2010.02.057

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

This study aims to reveal the temporal and spatial heat transfer performance and the transition process from a steady axisymmetric separated flow to a chaotic flow of an isothermally heated sphere placed in a uniform, downwardly directed flow by experimentation and transient 3D numerical simulation. Experiments were carried out using air with a Grashof number of 3.3 x 10(5) and with several Reynolds numbers up to 1900. Four types of flow patterns appear showing that the chaotic flow around the sphere is a spatiotemporal chaos by the calculation of a set of Lyapunov exponents from the calculated time series of temperatures. (C) 2010 Elsevier Ltd. All rights reserved.

引用

页码：2602 / 2614

页数：13

共 50 条

[41] Mixed convection heat transfer and isothermal pressure drop in corrugated tubes for laminar and transition flow
Vicente, PG
García, A
Viedma, A
INTERNATIONAL COMMUNICATIONS IN HEAT AND MASS TRANSFER, 2004, 31 (05) : 651 - 662
[42] Three-dimensionality effects on the flow past a horizontal heated cylinder under mixed convection heat transfer
Salimipour, Erfan
PHYSICS OF FLUIDS, 2023, 35 (11)
[43] MIXED CONVECTION FLOW AND HEAT-TRANSFER IN A BOTTOM-DRIVEN SHALLOW CAVITY HEATED FROM BELOW
BENMANSOUR, R
VISKANTA, R
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER, 1994, 37 : 175 - 190
[44] Fluid Flow and Heat Transfer of Opposing Mixed Convection Adjacent to Upward-Facing, Inclined Heated Plates
Misumi, Toshiyuki
Shigemaru, Syogo
Kitamura, Kenzo
Kamiya, Kazunori
HEAT TRANSFER-ASIAN RESEARCH, 2007, 36 (03): : 127 - 142
[45] Effect of chemical reaction on heat and mass transfer by mixed convection flow about a sphere in a saturated porous media
Rashad, A. M.
Chamkha, A. J.
El-Kabeir, S. M. M.
INTERNATIONAL JOURNAL OF NUMERICAL METHODS FOR HEAT & FLUID FLOW, 2011, 21 (3-4) : 418 - 433
[46] Heat/mass transfer from a neutrally buoyant sphere by mixed natural and forced convection in a simple shear flow
Yuan, Bing
Yang, Chao
Mao, Zai-Sha
Yin, Xiaolong
Koch, Donald L.
AICHE JOURNAL, 2018, 64 (07) : 2816 - 2827
[47] Asymmetrical Non-Uniform Heat Flux Distributions For Laminar Flow Heat Transfer With Mixed Convection In a Horizontal Circular Tube
Okafor, Izuchukwu F.
Dirker, Jaco
Meyer, Josua P.
HEAT TRANSFER ENGINEERING, 2019, 40 (1-2) : 109 - 127
[48] Non-uniform mass transfer in MHD mixed convection flow of water over a sphere with variable viscosity and Prandtl number
Rajakumar, J.
Saikrishnan, P.
Chamkha, A.
INTERNATIONAL JOURNAL OF NUMERICAL METHODS FOR HEAT & FLUID FLOW, 2016, 26 (07) : 2235 - 2251
[49] Mixed convection heat transfer from three heated square cylinders in cross-flow at low Reynolds numbers
Dipankar Chatterjee
Shyama Prasad Das
Heat and Mass Transfer, 2010, 46 : 1239 - 1251
[50] Heat transfer by mixed convection opposing laminar flow from the inside surface of uniformly heated inclined circular tube
Mohammed, H.
Yusaf, T.
PROCEEDINGS OF THE 8TH BIENNIAL CONFERENCE ON ENGINEERING SYSTEMS DESIGN AND ANALYSIS, VOL 4, 2006, : 165 - 175

← 1 2 3 4 5 →