Turbulent flow of oil-water emulsions with polymer additives
نویسندگان
چکیده
منابع مشابه
Experiments in Turbulent Pipe Flow with Polymer Additives at Maximum Drag Reduction
In this paper we report on (two-component) LDV experiments in a fully developed turbulent pipe flow with a drag-reducing polymer (partially hydrolyzed polyacrylamide) dissolved in water. The Reynolds number based on the mean velocity, the pipe diameter and the local viscosity at the wall is approximately 10000. We have used polymer solutions with three different concentrations which have been c...
متن کاملThermodynamic Stability of Water-in-oil Emulsions
It is well known that colloids can show phase transitions similar to the ones observed in molecular systems. Colloid-diluted and colloid-concentrated phases can coexist in thermodynamic equilibrium at certain conditions. In a previous work, the authors of this research have used this concept to study petroleum emulsions stability, applying thermodynamic perturbation theories to calculate a phas...
متن کاملSTABlLlSATlON OF EARTH ROADS WITH WATER-BASED POLYMER EMULSIONS
~olwnerisation, determined whether the emulsion would form Laboratory results show that by optimising the polymer type and stabiliser system, emulsions can be produced which, when diluted with water and mixed into sands or soils with a high clay content, can produce thick aggregates with high load bearing and water holdout characteristics. Unconfined compressive strength (UCS) and water uptake ...
متن کاملDrag reduction in a flat-plate turbulent boundary layer flow by polymer additives
This paper presents a theoretical study on the velocity distribution and the friction factor of boundary layer flows with polymer additives starting from the concept of “stress deficit.” A novel method of order of magnitude analysis is developed, which converts the governing equations of boundary layer flow into a solvable ordinary differential equation, thus the total shear stress distribution...
متن کاملDrag reduction by polymer additives from turbulent spectra.
We extend the analysis of the friction factor for turbulent pipe flow reported by G. Gioia and P. Chakraborty [Phys. Rev. Lett. 96, 044502 (2006)] to the case where drag is reduced by polymer additives.
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: IOP Conference Series: Earth and Environmental Science
سال: 2014
ISSN: 1755-1307,1755-1315
DOI: 10.1088/1755-1315/21/1/012028