polymer additives

This article provides a review of the recent progress in understanding and predicting additives-induced drag reduction (DR) turbulent wall-bounded shear flows. We focus on friction losses by dilute addition high-molecular weight polymers and/or fibers to flowing liquids. Although it has long been reasoned that dynamical interactions between polymers/fibers turbulence are responsible for DR, was...

متن کامل

Effect of Different Additives on Separation Performance of Flat Sheet PVDF Membrane Contactor

Journal: Journal of Chemical and Petroleum Engineering 2018

Ali Ghadimi, Azadeh Ghaee, Behrouz Sadatnia, Mohammad Khosravi, Zahra Mansourpour,

This paper investigates effects of different additives on morphology and subsequently, separation performance of asymmetric flat sheet Polyvinylidene fluoride (PVDF) membranes to separate CO2 using membrane contractor. Five different additives from different chemical families including Lithium chloride (salt), Polyethylene glycol 400 (polymer), glycerol (weak anti-solvents), methanol...

متن کامل

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید