Aim of the present contribution is the study of drag reduction (DR) in rodlike polymers by means of Direct Numerical Simulations. Even if in the past a number of investigators have tried to explain DR via the role of elasticity in flexible polymers, it is interesting to point out that non-Brownian fibres, that have no elasticity, can achieve significant reduction of the friction coefficient. The results we will discuss are obtained by using a model, already discussed in [1], which is an appropriate limit of the rodlike polymer ones.
De Angelis E., Ching E.S.C. (2007). Drag reduction by non-Brownian rodlike particles in a channel flow. s.l : s.n.
Drag reduction by non-Brownian rodlike particles in a channel flow
DE ANGELIS, ELISABETTA;
2007
Abstract
Aim of the present contribution is the study of drag reduction (DR) in rodlike polymers by means of Direct Numerical Simulations. Even if in the past a number of investigators have tried to explain DR via the role of elasticity in flexible polymers, it is interesting to point out that non-Brownian fibres, that have no elasticity, can achieve significant reduction of the friction coefficient. The results we will discuss are obtained by using a model, already discussed in [1], which is an appropriate limit of the rodlike polymer ones.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
