期刊名称：IOP Conference Series: Earth and Environmental Science
印刷版ISSN：1755-1307
电子版ISSN：1755-1315
出版年度：2012
卷号：15
期号：1
出版社：IOP Publishing
摘要：Unsteady flow character is evident; transient regimes may also be consideredin some cases. Nowadays, N.S calculations has the advantage to give detailedinformation of the flow in any kind of locations. However, this big amount ofinformation does not give indication on what geometrical modification will improvethe flow characteristics and machine performances. Perform the use of good models inalso a key point. Several level of approximation already exists depending on the kindof information that has to be reached.A better insight in needed, based on theoreticalconsideration in order to understand and identify flow mechanism is given thereafter
