Effect of upstream shear on flow and heat (Mass) transfer over a flat plate—part II: Mass transfer measurements

K. Ghosh; Richard J Goldstein

doi:10.1115/1.4001609

Effect of upstream shear on flow and heat (Mass) transfer over a flat plate—part II: Mass transfer measurements

K. Ghosh, Richard J Goldstein

Mechanical Engineering

Research output: Contribution to journal › Article › peer-review

1 Scopus citations

Abstract

Mass transfer measurements on a flat plate downstream of a belt moving in the same direction of the freestream study the effect of the upstream shear on the heat (mass) transfer for four belt-freestream velocity ratios. With an increase in this ratio, the “virtual origin” of the turbulent boundary layer “moves” downstream toward the trailing edge of the belt. This is verified from the variation of the Stanton number versus the Reynolds number plots. As the “inner” region of the boundary layer is removed for a belt speed of u_w=10 m/s (freestream velocity u_in≈15.4 m/s), a corresponding local minimum in the variation of the Stanton number is observed. Downstream of this minimum, the characteristics of the turbulent boundary layer are restored and the data fall back on the empirical variation of Stanton with Reynolds number.

Original language	English (US)
Pages (from-to)	1-6
Number of pages	6
Journal	Journal of Heat Transfer
Volume	132
Issue number	10
DOIs	https://doi.org/10.1115/1.4001609
State	Published - Oct 2010

Keywords

Boundary layer
Constant concentration
Constant temperature
Heat/mass transfer analogy
Naphthalene sublimation
Turbulent flow
Wall motion

Publisher link

10.1115/1.4001609

Find It

Find It at U of M Libraries

Cite this

@article{434725701e6942f096ded12c839c930e,

title = "Effect of upstream shear on flow and heat (Mass) transfer over a flat plate—part II: Mass transfer measurements",

abstract = "Mass transfer measurements on a flat plate downstream of a belt moving in the same direction of the freestream study the effect of the upstream shear on the heat (mass) transfer for four belt-freestream velocity ratios. With an increase in this ratio, the “virtual origin” of the turbulent boundary layer “moves” downstream toward the trailing edge of the belt. This is verified from the variation of the Stanton number versus the Reynolds number plots. As the “inner” region of the boundary layer is removed for a belt speed of uw=10 m/s (freestream velocity uin≈15.4 m/s), a corresponding local minimum in the variation of the Stanton number is observed. Downstream of this minimum, the characteristics of the turbulent boundary layer are restored and the data fall back on the empirical variation of Stanton with Reynolds number.",

keywords = "Boundary layer, Constant concentration, Constant temperature, Heat/mass transfer analogy, Naphthalene sublimation, Turbulent flow, Wall motion",

author = "K. Ghosh and Goldstein, {Richard J}",

year = "2010",

month = oct,

doi = "10.1115/1.4001609",

language = "English (US)",

volume = "132",

pages = "1--6",

journal = "Journal of Heat Transfer",

issn = "0022-1481",

publisher = "American Society of Mechanical Engineers(ASME)",

number = "10",

}

TY - JOUR

T1 - Effect of upstream shear on flow and heat (Mass) transfer over a flat plate—part II

T2 - Mass transfer measurements

AU - Ghosh, K.

AU - Goldstein, Richard J

PY - 2010/10

Y1 - 2010/10

N2 - Mass transfer measurements on a flat plate downstream of a belt moving in the same direction of the freestream study the effect of the upstream shear on the heat (mass) transfer for four belt-freestream velocity ratios. With an increase in this ratio, the “virtual origin” of the turbulent boundary layer “moves” downstream toward the trailing edge of the belt. This is verified from the variation of the Stanton number versus the Reynolds number plots. As the “inner” region of the boundary layer is removed for a belt speed of uw=10 m/s (freestream velocity uin≈15.4 m/s), a corresponding local minimum in the variation of the Stanton number is observed. Downstream of this minimum, the characteristics of the turbulent boundary layer are restored and the data fall back on the empirical variation of Stanton with Reynolds number.

AB - Mass transfer measurements on a flat plate downstream of a belt moving in the same direction of the freestream study the effect of the upstream shear on the heat (mass) transfer for four belt-freestream velocity ratios. With an increase in this ratio, the “virtual origin” of the turbulent boundary layer “moves” downstream toward the trailing edge of the belt. This is verified from the variation of the Stanton number versus the Reynolds number plots. As the “inner” region of the boundary layer is removed for a belt speed of uw=10 m/s (freestream velocity uin≈15.4 m/s), a corresponding local minimum in the variation of the Stanton number is observed. Downstream of this minimum, the characteristics of the turbulent boundary layer are restored and the data fall back on the empirical variation of Stanton with Reynolds number.

KW - Boundary layer

KW - Constant concentration

KW - Constant temperature

KW - Heat/mass transfer analogy

KW - Naphthalene sublimation

KW - Turbulent flow

KW - Wall motion

UR - http://www.scopus.com/inward/record.url?scp=77956136907&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=77956136907&partnerID=8YFLogxK

U2 - 10.1115/1.4001609

DO - 10.1115/1.4001609

M3 - Article

AN - SCOPUS:77956136907

SN - 0022-1481

VL - 132

SP - 1

EP - 6

JO - Journal of Heat Transfer

JF - Journal of Heat Transfer

IS - 10

ER -

Effect of upstream shear on flow and heat (Mass) transfer over a flat plate—part II: Mass transfer measurements

Abstract

Keywords

Publisher link

Find It

Other files and links

Fingerprint

Cite this