TY - JOUR
T1 - Analytical and Numerical Methods for the Design of Maddock Mixers in Single Screw Plasticizing Technology
AU - Olbrich, Michael
AU - Zitzenbacher, Gernot
AU - Hochenauer, Christoph
AU - Kneidinger, Christian
AU - Lawlor, Vincent
PY - 2012/1
Y1 - 2012/1
N2 - In single screw plasticizing technology dispersive mixing elements, i.e., axial and spiral Maddock shear heads, are often used to improve the melt quality. Mathematical models are necessary to efficiently design the mixing section. An analytical model for the design of Maddock mixers is presented in this work. In addition, a CFD-software package is employed to determine the flow and pressure field for different geometries and processing conditions. For the design and process analysis of fluted dispersive mixers the validity and potential of simplified analytical solutions are compared to more versatile and detailed CFD-simulations.
AB - In single screw plasticizing technology dispersive mixing elements, i.e., axial and spiral Maddock shear heads, are often used to improve the melt quality. Mathematical models are necessary to efficiently design the mixing section. An analytical model for the design of Maddock mixers is presented in this work. In addition, a CFD-software package is employed to determine the flow and pressure field for different geometries and processing conditions. For the design and process analysis of fluted dispersive mixers the validity and potential of simplified analytical solutions are compared to more versatile and detailed CFD-simulations.
KW - dispersive mixer
KW - extrusion
KW - mixing
KW - polymer processing
KW - simulation
UR - http://www.scopus.com/inward/record.url?scp=84856279692&partnerID=8YFLogxK
U2 - 10.1002/masy.201000100
DO - 10.1002/masy.201000100
M3 - Article
SN - 1022-1360
VL - 311
SP - 83
EP - 91
JO - Macromolecular Symposia
JF - Macromolecular Symposia
IS - 1
ER -