ISSN:
1619-6937
Source:
Springer Online Journal Archives 1860-2000
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
,
Physics
Notes:
Summary This paper is concerned with experiments on thermal convection between two coaxial square containers. It is found that there exists a critical Rayleigh number (Ra)c of 1660 approximately for the onset of the thermal convection in top-test section. The vertical velocity distributions at the middle height of left side-test section agree with the classical theory well. The width of the present convection roll in top-test section is of the same order as the height. The reason why the convection rolls or fluid mass in top-test section are transported to the right- or left-direction is discussed and attributed to a new mechanism of mass transport, consisting of three-stages broadly, viz., (a) extension-stage, (b) splitting-stage, and (c) birth-stage.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF01251889
Permalink
