Numerical analysis of the unsteady character of “spoke pattern” in Bridgman top seeding geometry

Szmyd, Janusz S.; Jaszczur, Marek; Ozoe, Hiroyuki

doi:10.1016/j.jcrysgro.2006.11.189

Search citation statements

Order By: Relevance

Paper Sections

Select...

Results1

Citation Types

Supporting

Mentioning

Contrasting

Year Published

2010

2015

Publication Types

Select...

Article2

Relationship

Self Cite0

Independent2

Authors

Journals

Cited by 2 publications

(1 citation statement)

References 21 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This spoke-like structure was first reported in a report of numerical calculations [15] and the velocity distributions shown here are the first quantitative evidential experiment of this. Unlike the spoke-like structures appearing in the different natural convection systems [21,22], the structure observed here is quite steady and has no local unsteadiness. Although the shape of cold plume (i.e.…”

Section: Resultsmentioning

confidence: 49%

Experimental study of cell pattern formation induced by internal heat sources in a horizontal fluid layer

Takahashi¹,

Tasaka²,

Murai³

et al. 2010

International Journal of Heat and Mass Transfer

View full text Add to dashboard Cite

This study determines the flow structure in a convection cell with an internally heated layer by PIV to elucidate the convection cell transition mechanisms. The vertical velocity component is determined and the cell behaviour with respect to Rayleigh number is investigated quantitatively. Cell expansion process is described as a consequence of development of the descending flow at the centre of cells. The results suggest that a spoke-like structure is stable in this system in ideal conditions and a double-cell structure is formed when there are restrictions on the system, i.e. finite lateral boundaries.

show abstract

Section: Resultsmentioning

confidence: 49%