ON TRANSITION IN A PIPE; PART II: THE EQUILIBRIUM PUFF

Israel J Wygnanski, M. SOKOLOV, D. FRIEDMAN

Research output: Contribution to journalArticle

Abstract

CONDITIONALLY SAMPLED HOT WIRE MEASUREMENTS WERE TAKEN IN A PIPE AT LOW REYNOLDS NUMBERS BETWEEN 2700 AND 2000 CORRESPONDING TO THE ONSET OF TURBULENCE AS A RESULT OF A LARGE PERTURBATION IN THE FLOW.THIS TYPE OF TRANSITION GIVES RISE TO A TURBULENT PUFF WHICH MAINTAINS ITSELF INDEFINITELY AROUND RE # 2200.THE STRUCTURE OF THE PUFF WAS INVESTIGATED IN SOME DETAIL AND WAS FOUND TO BE VERY DIFFERENT FROM THE STRUCTURE OF THE FULLY DEVELOPED TURBULENT PIPE FLOW, NEVERTHELESS IT IS INDEPENDENT OF THE CHARACTER TO THE DISTURBANCE WHICH CREATED IT.THE PURPOSE OF THE STUDY WAS TO GAIN SOME INSIGHT INTO THE MECHANISM OF TRANSITION IN A PIPE.(A) (MICROFICHE)

Original languageEnglish (US)
Journal[No source information available]
Issue number(1974)
Publication statusPublished - Jan 1 1974
Externally publishedYes

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ASJC Scopus subject areas

  • Engineering(all)

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