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Mass transfer from a sphere in an oscillating flow with zero mean velocityA pseudospectral numerical method is used for the solution of the Navier-Stokes and mass transport equations for a sphere in a sinusoidally oscillating flow with zero mean velocity. The flow is assumed laminar and axisymmetric about the sphere's polar axis. Oscillating flow results were obtained for Reynolds numbers (based on the free-stream oscillatory flow amplitude) between 1 and 150, and Strouhal numbers between 1 and 1000. Sherwood numbers were computed and their dependency on the flow frequency and amplitude discussed. An assessment of the validity of the quasi-steady assumption for mass transfer is based on these results.
Document ID
19900011022
Acquisition Source
Legacy CDMS
Document Type
Technical Memorandum (TM)
Authors
Drummond, Colin K.
(NASA Lewis Research Center Cleveland, OH., United States)
Lyman, Frederic A.
(Syracuse Univ. Utica, NY., United States)
Date Acquired
September 6, 2013
Publication Date
April 1, 1990
Subject Category
Fluid Mechanics And Heat Transfer
Report/Patent Number
E-5202
NASA-TM-102566
NAS 1.15:102566
Accession Number
90N20338
Funding Number(s)
PROJECT: RTOP 505-62-71
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
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