Experiment investigation of turbulence generated by solitary wave over smooth beds

Bambang Winarta, Nadiatul Adilah Ahmad Abdul Ghani, Hitoshi Tanaka, Hiroto Yamaji, Mohammad Fadhli Ahmad

Research output: Contribution to journalArticle

Abstract

Two cases of solitary motion experiment have been conducted over smooth beds by using solitary wave generation system facilitated by two types of rotating disk, the detail explanation about these rotating disks can be found in the former publication (Tanaka et al. 2011). In the present study, a deep analysis has been done to verify the sufficiency of tranquil period between two peaks of "solitary-wave-like" motion in turbulent flow regime and also to validate the reliability or sensitivity of ensemble averaging to 50 wave numbers produces by continuous measurement. The analysis results show that the minimum number of "periodical" or continuous wave measurement to attain reliable ensemble average is 45 wave numbers for case of turbulent solitary motion with Reynolds number (Re) = 7.34 x 105.

Original languageEnglish
Pages (from-to)2211-2216
Number of pages6
JournalARPN Journal of Engineering and Applied Sciences
Volume11
Issue number4
Publication statusPublished - 2016 Jan 1

Keywords

  • Ensemble averaging
  • Solitary wave
  • Tranquil period
  • Turbulent flow regime

ASJC Scopus subject areas

  • Engineering(all)

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