%0 Journal Article
%T SCALING ANALYSIS OF UNSTEADY NATURAL CONVECTION FLOW OF A FLUID WITH LOW PRANDTL NUMBER<br>低Pr数流体非稳态自然对流流动的标度分析
%A LIU Tao
%A LIN Wenxian
%A <br>刘滔
%A 林文贤
%J 力学与实践
%D 2007
%I 
%X A natural convection flow will be formed adjacent to a vertical plane immersed in a quiescent homogeneous or linearly-stratified fluid after the plate is heated with a uniform thermal flux. The flow will undergo a start-up stage, followed by a transitional stage, before reaching a steady state. The transient behavior of the flow is parameterized by the plate temperature, the thermal boundary-layer thickness, the inner and outer velocity boundary-layer thicknesses, the maximum vertical velocity within the boundary layer, and the time for the boundary layer to reach the steady state. In this paper, a scaling analysis is used to obtain scaling laws for all the parameters at various development stages of unsteady natural convection boundary-layer flow in homogeneous and linearly-stratified fluids with low Prandtl number ($Pr<1$) along a vertical plate heated with a uniform thermal flux.
%K Unsteady natural convection
%K scaling analysis
%K low Prandtl number fluid
%K boundary layer
%K scaling laws<br>非稳态自然对流
%K 标度分析
%K 低普朗特数流体
%K 边界层
%K 标度关系
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=5D344E2AD54D14F8&jid=0BF5C9FB031A532ED0A6D99DC4F6181A&aid=6B5488D2F1C64621&yid=A732AF04DDA03BB3&vid=771469D9D58C34FF&iid=CA4FD0336C81A37A&sid=EA389574707BDED3&eid=D3E34374A0D77D7F&journal_id=1000-0879&journal_name=力学与实践&referenced_num=0&reference_num=11