NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
Prediction and rational correlation of thermophoretically reduced particle mass transfer to hot surfaces across laminar or turbulent forced-convection gas boundary layersA formulation previously developed to predict and correlate the thermophoretically-augmented submicron particle mass transfer rate to cold surfaces is found to account for the thermophoretically reduced particle mass transfer rate to overheated surfaces such that thermophoresis brings about a 10-decade reduction below the convective mass transfer rate expected by pure Brownian diffusion and convection alone. Thermophoretic blowing is shown to produce effects on particle concentration boundary-layer (BL) structure and wall mass transfer rates similar to those produced by real blowing through a porous wall. The applicability of the correlations to developing BL-situations is demonstrated by a numerical example relevant to wet-steam technology.
Document ID
19870036175
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Gokoglu, Suleyman A.
(NASA Lewis Research Center Cleveland, OH, United States)
Rosner, Daniel E.
(Yale University New Haven, CT, United States)
Date Acquired
August 13, 2013
Publication Date
January 1, 1986
Publication Information
Publication: Chemical Engineering Communications
Volume: 44
ISSN: 0098-6445
Subject Category
Fluid Mechanics And Heat Transfer
Accession Number
87A23449
Funding Number(s)
CONTRACT_GRANT: NCC3-45
CONTRACT_GRANT: AF-AFOSR-84-0034
CONTRACT_GRANT: NAG3-590
Distribution Limits
Public
Copyright
Other

Available Downloads

There are no available downloads for this record.
No Preview Available