图书馆订阅: Guest
Begell Digital Portal Begell 数字图书馆 电子图书 期刊 参考文献及会议录 研究收集
传热学
影响因子: 1.199 5年影响因子: 1.155 SJR: 0.267 SNIP: 0.503 CiteScore™: 1.4

ISSN 打印: 1064-2285
ISSN 在线: 2162-6561

卷:
卷 51, 2020 卷 50, 2019 卷 49, 2018 卷 48, 2017 卷 47, 2016 卷 46, 2015 卷 45, 2014 卷 44, 2013 卷 43, 2012 卷 42, 2011 卷 41, 2010 卷 40, 2009 卷 39, 2008 卷 38, 2007 卷 37, 2006 卷 36, 2005 卷 35, 2004 卷 34, 2003 卷 33, 2002 卷 32, 2001 卷 31, 2000 卷 30, 1999 卷 29, 1998 卷 28, 1997

传热学

DOI: 10.1615/HeatTransRes.v31.i6-8.160
pages 493-499

Two-Dimensional Laminar Free Convection in the Cavity Having a Shape of a Square with Rounded Angles

G. V. Makhnova
St. Petersburg State Technical University, Russia
Vladimir V. Ris
Peter the Great St.Petersburg Polytechnic University, Polytechnicheskaya 29, St.Petersburg, 195251, Russia
Evgueni M. Smirnov
Department of Hydro- and Aerodynamics at the Saint-Petersburg Polytechnic University, Polytechnicheskaya, 29, St. Petersburg, 195251, Russia

ABSTRACT

Two-dimensional stationary laminar free convection in cavities obtained by rounding-off the angles of an initially square shape is studied numerically at the Rayleigh numbers of from 104 to 5 · 109 at the following values of the Prandtl number 0.03, 0.1, 0.71, 2, 5, and 10. It is found for the cavities with isothermal vertical and adiabatic horizontal walls that rounding-off of the angles with preservation of the length of isothermal portions leads to an increase in the Nusselt number to 20%. The strongest effect of rounding-off of the angles is in lowering the limit of stability of stationary convection.


Articles with similar content:

Two-Dimensional Laminar Free Convection in the Cavity Having a Shape of a Square with Rounded-off Corners
Heat Transfer Research, Vol.33, 2002, issue 5&6
G. V. Makhnova, Evgueni M. Smirnov, Vladimir V. Ris
EFFECT OF ASPECT RATIO ON THE ROUTE TO CHAOS OF CONVECTIVE FLOWS IN RECTANGULAR ENCLOSURES
ICHMT DIGITAL LIBRARY ONLINE, Vol.13, 2008, issue
Khedidja Bouhadef, Belkacem Zeghmati, Madjid Tata, Sabiha Aklouche
ON THE ONSET OF NATURAL CONVECTION IN A PARTIALLY COOLED CYLINDER
Heat Transfer Research, Vol.49, 2018, issue 8
Jose Nuñez , Alberto Beltrán
NATURAL CONVECTION HEAT TRANSFER INSIDE AN INCLINED SOLAR COLLECTOR WITH A V-CORRUGATED ABSORBER
Heat Transfer Research, Vol.46, 2015, issue 9
Meisam Habibi Matin, H. Naderan, Reza Hosseini
NATURAL CONVECTION HEAT TRANSFER WITHIN A SECTOR-SHAPED CAVITY
International Heat Transfer Conference 10, Vol.18, 1994, issue
Sun Sok Kwon, Han Shik Chung, Tae Yeol Bae