Distributive mixing in conveying elements of a ZSK-53 co-rotating twin screw extruder.: An article from: Polymer Engineering and Science
Book Details
Author(s)Hongfei Cheng, Ica Manas-Zloczower
PublisherSociety of Plastics Engineers, Inc.
ISBN / ASINB000989PS6
ISBN-13978B000989PS0
MarketplaceFrance 🇫🇷
Description
This digital document is an article from Polymer Engineering and Science, published by Society of Plastics Engineers, Inc. on June 1, 1998. The length of the article is 3591 words. The page length shown above is based on a typical 300-word page. The article is delivered in HTML format and is available in your Amazon.com Digital Locker immediately after purchase. You can view it with any web browser.
From the author: A fluid dynamics analysis package (FIDAP), using the finite element method, was implemented to simulate the 3-D isothermal flow patterns in the conveying element of a ZSK-53 co-rotating twin screw extruder. The fluid was described by a power-law model. The dynamics of distributive mixing was studied numerically by tracking the motion of particles in the mixer. The extent of distributive mixing was characterized in terms of length and area stretch as well as strain distributions. The length stretch reflects the overall capability of the mixing device to spread minor component particles away from their neighbors originally present in the same cluster. The area stretch reflects the evolution of intermaterial area when mixing two fluids with a passive interface. We observed an oscillatory behavior for the average intermaterial area stretch, which was explained in terms of a stretching and folding mechanism. Folding occurs during material takeover from one screw to the other. Operating at higher rotational speeds enhances distributive mixing efficiency.
Citation Details
Title: Distributive mixing in conveying elements of a ZSK-53 co-rotating twin screw extruder.
Author: Hongfei Cheng
Publication:Polymer Engineering and Science (Refereed)
Date: June 1, 1998
Publisher: Society of Plastics Engineers, Inc.
Volume: v38 Issue: n6 Page: p926(10)
Distributed by Thomson Gale
From the author: A fluid dynamics analysis package (FIDAP), using the finite element method, was implemented to simulate the 3-D isothermal flow patterns in the conveying element of a ZSK-53 co-rotating twin screw extruder. The fluid was described by a power-law model. The dynamics of distributive mixing was studied numerically by tracking the motion of particles in the mixer. The extent of distributive mixing was characterized in terms of length and area stretch as well as strain distributions. The length stretch reflects the overall capability of the mixing device to spread minor component particles away from their neighbors originally present in the same cluster. The area stretch reflects the evolution of intermaterial area when mixing two fluids with a passive interface. We observed an oscillatory behavior for the average intermaterial area stretch, which was explained in terms of a stretching and folding mechanism. Folding occurs during material takeover from one screw to the other. Operating at higher rotational speeds enhances distributive mixing efficiency.
Citation Details
Title: Distributive mixing in conveying elements of a ZSK-53 co-rotating twin screw extruder.
Author: Hongfei Cheng
Publication:Polymer Engineering and Science (Refereed)
Date: June 1, 1998
Publisher: Society of Plastics Engineers, Inc.
Volume: v38 Issue: n6 Page: p926(10)
Distributed by Thomson Gale
