Server maintenance is scheduled for Saturday, December 21st between 6am-10am CST.

During that time, parts of our website will be affected until maintenance is completed. Thank you for your patience.

Menu
Search
Filters
Close
Menu

02244 LOCAL WALL SHEAR STRESS GRADIENTS IN THE SLUG FLOW REGIME EFFECTS OF HYDROCARBON AND CORROSION INHIBITOR-

Picture for 02244 LOCAL WALL SHEAR STRESS GRADIENTS...
Available for download
Product Number: 51300-02244-SG
ISBN: 02244 2002 CP
Author: G. Schmitt, C. Bosch, P. Plagemann and K. Moeller
$0.00
$20.00
$20.00
The effect of a hydrocarbon phase and the presence of a model inhibitor (quat) on local wall shear stresses in the slug flow regime (Fr 5 to Fr 13) was electrochemically quantified with microelectrodes. With a high sensitivity, high frequency current noise data aquisition (up to 200 kHz) high frequency interactions of near-wall slug turbulence elements in the 1 to 6 kHz range were observed which increase in frequency with increasing Froude number. In hydrocarbon- and inhibitor-free aqueous media local wall shear stresses at the time of highest interaction of slug turbulences with the wall are higher by a factor 4 to 5 than corresponding average wall shear stresses. An additional hydrocarbon phase can reduce the level of average and peak wall shear stresses to some extent. However, real drag reduction can be achieved by adding corrosion inhibitors, e.g. tetradecyltrimethylammonium bromide (TDTMB). Addition of 0.1 mM TDTMB reduces the slug related peak wall shear stress gradients by a factor of 10 to 20 with respect to the hydrocarbon-free aqueous system. Additionally the amplitudes of high l~equency interactions of near-wall turbulence elements with the wall are damped significantly in the presence of a hydrocarbon phase and corrosion inhibitor.
The effect of a hydrocarbon phase and the presence of a model inhibitor (quat) on local wall shear stresses in the slug flow regime (Fr 5 to Fr 13) was electrochemically quantified with microelectrodes. With a high sensitivity, high frequency current noise data aquisition (up to 200 kHz) high frequency interactions of near-wall slug turbulence elements in the 1 to 6 kHz range were observed which increase in frequency with increasing Froude number. In hydrocarbon- and inhibitor-free aqueous media local wall shear stresses at the time of highest interaction of slug turbulences with the wall are higher by a factor 4 to 5 than corresponding average wall shear stresses. An additional hydrocarbon phase can reduce the level of average and peak wall shear stresses to some extent. However, real drag reduction can be achieved by adding corrosion inhibitors, e.g. tetradecyltrimethylammonium bromide (TDTMB). Addition of 0.1 mM TDTMB reduces the slug related peak wall shear stress gradients by a factor of 10 to 20 with respect to the hydrocarbon-free aqueous system. Additionally the amplitudes of high l~equency interactions of near-wall turbulence elements with the wall are damped significantly in the presence of a hydrocarbon phase and corrosion inhibitor.
PRICE BREAKS - The more you buy, the more you save
Quantity
1+
5+
Price
$20.00
$20.00
Product tags
Also Purchased
Picture for 98055 INHIBITION OF SLUG FRONT CORROSION
Available for download

98055 INHIBITION OF SLUG FRONT CORROSION IN MULTIPHASE FLOW CONDITIONS

Product Number: 51300-98055-SG
ISBN: 98055 1998 CP
Author: Huey J. Chen, W. P. Jepson
$20.00
Picture for 11275 The Effect of Slug Liquid Front on Inhibitor Effectiveness in Petroleum Pipelines
Available for download

11275 The Effect of Slug Liquid Front on Inhibitor Effectiveness in Petroleum Pipelines

Product Number: 51300-11275-SG
ISBN: 11275 2011 CP
Author: Nima Tajallipour, Zhenjin Zhu and Patrick Teevens
Publication Date: 2011
$20.00
Picture for 02501 ENHANCED MASS TRANSFER AND WALL...
Available for download

02501 ENHANCED MASS TRANSFER AND WALL SHEAR STRESS IN MULTIPHASE SLUG FLOW

Product Number: 51300-02501-SG
ISBN: 02501 2002 CP
Author: Hongwei Wang, Tao Hong, Ji Yong Cai, William Paul Jepson, and Christoph Bosch
$20.00
Categories
Industry
Recently viewed
Popular tags
View all

Association for Materials Protection and Performance

© AMPP All Rights Reserved.
Membership Terms of Content Use
Contact Customer Support