BOUNDARY INSTABILITY GENERATED ON THE FLOW-ICE INTERFACE

• IZUMI Norihiro

  Faculty of Engineering, Hokkaido University

• YOKOKAWA Miwa

  School of Information Science, Osaka Institute of Technology

• NAITO Kensuke

  Graduate School of Engineering, Hokkaido University

Bibliographic Information

Other Title

• 流れ-氷界面に発生する境界不安定現象

Abstract

Periodic boundary waves are sometimes observed on surfaces of large ice bodies such as glaciers and polar ice caps on Mars as well as on the Earth. These boundary waves may be formed by boundary instability between the ice surface and the fluid flowing on it. We propose a mathematical model to describe the evolution of the ice surface by the use of the Navier-Stokes equations, the heat transfer equations of flow and ice, and a heat balance equation at the boundary. Assuming that the temperature above the flow is higher than that below the ice, we perform a linear stability analysis, and obtained the results that the flow-ice boundary becomes unstable in the range of large Reynolds numbers, and the boundary waves migrate upstream in this temperature condition.

Journal

• Journal of Japan Society of Civil Engineers, Ser. B1 (Hydraulic Engineering)

  Journal of Japan Society of Civil Engineers, Ser. B1 (Hydraulic Engineering) 69 (4), I_1117-I_1122, 2013

  Japan Society of Civil Engineers

Keywords

• ice
• boundary waves
• heat transfer
• boundary instability
• linear stability analysis

Details

• CRID: 1390282680328950912
• NII Article ID: 130004558120
• DOI: 10.2208/jscejhe.69.i_1117
• ISSN: 2185467X
• Text Lang: ja
• Data Source:
  • JaLC
  • Crossref
  • CiNii Articles
• Abstract License Flag: Disallowed