On the Scaling of Separation Bubbles.

• Li Xianguo

• Djilali Nedjib

Abstract

A simple analysis, based on the scaling of the Navier-Stokes equations, is presented for general flow situations involving separation bubbles. Three possible functional relations between the separation bubble length L and Reynolds number Re are derived : (i) L∝Re, (ii) L∝1/Re, and (iii) L=constant. These relations are shown to correspond to the experimentally observed behavior of laminar, transitional and turbulent separation bubbles, respectively. The results of the analysis are discussed in the context of several internal and external separated flows in various geometries, and the corresponding empirical constants are evaluated from available experimental and numerical data.

Journal

• JSME International Journal Series B

  JSME International Journal Series B 38 (4), 541-548, 1995

  The Japan Society of Mechanical Engineers

Keywords

• Separated Flow
• Recirculating Flow
• Scaling Methods
• Navier-Stokes Equations

Details

• CRID: 1390282679649777792
• NII Article ID: 110002976813
• NII Book ID: AA10888815
• DOI: 10.1299/jsmeb.38.541
• ISSN: 13475371
• ISSN: 13408054
• Web Site: http://www.jstage.jst.go.jp/article/jsmeb1993/38/4/38_4_541/_pdf
• Text Lang: en
• Data Source:
  • JaLC
  • Crossref
  • CiNii Articles
• Abstract License Flag: Disallowed