The Response of Bioluminescent Organisms to Fully Developed Pipe Flow.

Abstract

This report records the study and response of in situ luminescent organisms to hydrodynamic stimuli in a well characterized flow field. In particular; using fully developed pipe flow: (1) the bioluminescent response of freshly collected organisms are compared in laminar and turbulent flow, (2) threshold values of wall shear stress, T(wall), are determined, and (3) the flash level of individual organisms as a function of T(wall) are examined. Several trends describing the response of in situ luminescent organisms to fully developed pipe flow stimuli are reported. Further work with a greater range of T(wal)l and Retrans values is necessary to corroborate this initial study. Also the reaction of these luminescent organisms to varying shear stress (transitional flows) and acceleration (developing flows) needs to be investigated.

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Document Details

Document Type
Technical Report
Publication Date
Aug 01, 1994
Accession Number
ADA291363

Entities

People

  • G. Anderson
  • J. Losee
  • J. Rohr

Organizations

  • Naval Command, Control and Ocean Surveillance Center

Tags

Communities of Interest

  • Air Platforms
  • Energy and Power Technologies
  • Ground and Sea Platforms
  • Sensors

DTIC Thesaurus Topics

  • Boundary Layer
  • Flow Fields
  • Fluid Dynamics
  • Fluid Flow
  • Fluid Mechanics
  • Hydrodynamics
  • Hypervelocity Flow
  • Marine Biology
  • Oceanography
  • Oceans
  • Pipe Flow
  • Poiseuille Flow
  • Reynolds Number
  • Sea Water
  • Shear Stresses
  • Turbulent Flow
  • Turbulent Mixing

Readers

  • Combustion and Flow Dynamics.
  • Fluid Mechanics and Fluid Dynamics.
  • Microbial Pathology