scholarly journals Flow Properties and Heat Transfer of Drag-Reducing Surfactant Solutions

10.5772/20462 ◽  
2011 ◽  
Author(s):  
Takashi Saeki
Keyword(s):  
Heat Transfer ◽  
Flow Properties ◽  
Surfactant Solutions

PRESSURE LOSSES AND HEAT TRANSFER FOR FLOW OF DRAG REDUCING SURFACTANT SOLUTIONS IN PIPES AND FITTINGS

Equipment ◽  
2006 ◽  
Author(s):  
J. Sestak ◽  
V. Mik ◽  
J. Myska ◽  
M. Dostal ◽  
L. Mihalka
Keyword(s):  
Heat Transfer ◽  
Pressure Losses ◽  
Surfactant Solutions

Flow and Chemical Kinetics Simulations of Endothermic Fuels

2003 ◽  
Author(s):  
Thomas A. Ward ◽  
Jamie S. Ervin ◽  
Richard C. Striebich ◽  
Steven Zabarnick
Keyword(s):  
Heat Transfer ◽  
Computational Model ◽  
Chemical Kinetics ◽  
Flow Reactor ◽  
Two Dimensional ◽  
Flow Properties ◽  
Supercritical Regime ◽  
Fuel Flow ◽  
Product Distributions ◽  
Heat Transfer Limit

Advanced aircraft engines are reaching a practical heat transfer limit beyond which the convective heat transfer provided by hydrocarbon fuels is no longer adequate. One solution is to use an endothermic fuel that absorbs heat through chemical reactions. This paper describes the development of a two-dimensional computational model of the heat and mass transport associated with a flowing fuel using a unique global chemical kinetics model. Most past models do not account for changes in the chemical composition of a flowing fuel and also do not adequately predict flow properties in the supercritical regime. The two-dimensional computational model presented here calculates the changing flow properties of a supercritical reacting fuel by use of experimentally derived proportional product distributions. The present calculations are validated by measured experimental data obtained from a flow reactor of mildly cracked n-decane. It is believed that these simulations will assist the fundamental understanding of high temperature fuel flow experiments.

Heat Transfer and Fluid Flow in Sintered Metallic Fiber Structures

2010 ◽  
Vol 638-642 ◽  
pp. 1884-1889 ◽  
Author(s):  
Olaf Andersen ◽  
Jens Meinert
Keyword(s):  
Heat Transfer ◽  
Fluid Flow ◽  
Heat Storage ◽  
Short Fiber ◽  
Analytical Models ◽  
Flow Properties ◽  
Metal Fiber ◽  
Open Cell ◽  
Sintered Metal ◽  
Inner Surface

Sintered metal fiber structures show a favourable ratio between pressure drop and inner surface area. Their exclusively open-cell morphology makes them well suited for heat transfer or temporary heat storage applications. Recently, highly conductive sintered metal fiber structures were successfully prepared from melt extracted aluminum alloy fibers. The heat conduction and fluid flow properties of metallic sintered short fiber structures were determined experimentally and compared with simple analytical models. It was found that equations taken from the available literature yield good approximations to the experimental results.

Anomalous flow properties of rod-like micelle surfactant solutions passing thorugh micro-orifices

2018 ◽  
Vol 2018 (0) ◽  
pp. OS10-7
Author(s):  
Akiomi USHIDA ◽  
Taisuke SATO ◽  
Takatsune NARUMI ◽  
Tomiichi HASEGAWA
Keyword(s):  
Flow Properties ◽  
Surfactant Solutions

Anomalous flow properties of surfactant solutions in abrupt contraction and expansion flows

2019 ◽  
Vol 2019.56 (0) ◽  
pp. G025
Author(s):  
Akiomi USHIDA ◽  
Taisuke SATO ◽  
Takatsune NARUMI ◽  
Tsutomu TAKAHASHI ◽  
Takashi ONUMA ◽  
...  
Keyword(s):  
Flow Properties ◽  
Surfactant Solutions ◽  
Abrupt Contraction ◽  
Contraction And Expansion
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