naa a22 4500 510823289 CHVBK 20180411083544.0 cr unu---uuuuu 180411e20130301xx s 000 0 eng 10.1007/s12541-013-0061-7 doi (NATIONALLICENCE)springer-10.1007/s12541-013-0061-7 A study on rotor profiles design for a novel twin-screw kneader [Elektronische Daten] [Jing Wei, Qingchao Sun, Xujian Sun, Wei Sun] The profile curve design method and the mathematical model of conjugate surfaces of twin-screw kneader used for high viscosity material mixing, transportation and malaxating are established according to the principle of gear engagement. A novel twin-screw kneader and the equations of the profile curves of the rotors as well as the rotor design are proposed. The working principles of the twin screw kneader are analyzed and numerical simulations for dynamic characteristics of the flow field are carried out Three-dimensional, isothermal and steady state numerical analysis of a non-Newtonian fluid are presented, based on computational fluid dynamics (CFD) theory, and the characteristics under the conditions of different speeds and center distances are studied, such as pressure distributions, velocity fields, the maximum shear stresses and the mass flow rates. The results provide a theoretical basis for performance predictions and reasonable design for the novel twin-screw kneader. Korean Society for Precision Engineering and Springer-Verlag Berlin Heidelberg, 2013 Twin-screw kneader nationallicence Rotor profiles nationallicence Computational fluid dynamics (CFD) nationallicence Flow field dynamics characteristics nationallicence σ a : fixed frame of the female rotor nationallicence σ b : fixed frame of the male rotor nationallicence σ f : moving frame of the female rotor nationallicence σ m : moving frame of the male rotor nationallicence x f , y f : coordinates at the end cross section of the female rotor nationallicence x ' f , y f : first order derivative at the end cross section of the female rotor nationallicence A : distance between female and male rotor nationallicence φ f : rotation angle of female rotor nationallicence i mf : teeth number ratio between female and male rotor nationallicence Z f : female tooth number nationallicence Z m : male tooth number nationallicence k mf : a coefficient, and k mf = 1+i mf nationallicence τ f : angle variable of the female rotor nationallicence x m , y m : coordinates at the end cross section of the male rotor nationallicence x ' m , y ' m : first order derivative at the end cross section of the male rotor nationallicence φ m : rotation angle of the male rotor nationallicence i fm : tooth ratio between male and female rotor nationallicence k fm : a coefficient, and k fm = 1 + i fm nationallicence τ m : angle variable of the male rotor nationallicence u f : variable of profiles at end cross section of the female rotor nationallicence P f : screw parameter of the female rotor nationallicence H f : lead length of the female rotor nationallicence u m : variable of profiles at the end cross section of the male rotor nationallicence u 1 : left boundary of parameter nationallicence u 2 : right boundary of parameter nationallicence n : index of power law nationallicence η : apparent viscosity, Pa·s nationallicence τ : shear stress nationallicence $\dot \gamma $ : rate of shear nationallicence ρ : density of material nationallicence ∇ : Hamiltonian operator nationallicence u : velocity vector nationallicence p : static pressure nationallicence Wei Jing School of Mechanical Engineering, Dalian University of Technology, 116-024, Dalian, China aut Sun Qingchao School of Mechanical Engineering, Dalian University of Technology, 116-024, Dalian, China aut Sun Xujian School of Mechanical Engineering, Dalian University of Technology, 116-024, Dalian, China aut Sun Wei School of Mechanical Engineering, Dalian University of Technology, 116-024, Dalian, China aut International Journal of Precision Engineering and Manufacturing Korean Society for Precision Engineering 14/3(2013-03-01), 451-459 2234-7593 14:3<451 2013 14 12541 https://doi.org/10.1007/s12541-013-0061-7 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s12541-013-0061-7 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Wei Jing School of Mechanical Engineering, Dalian University of Technology, 116-024, Dalian, China aut NATIONALLICENCE 700 1- Sun Qingchao School of Mechanical Engineering, Dalian University of Technology, 116-024, Dalian, China aut NATIONALLICENCE 700 1- Sun Xujian School of Mechanical Engineering, Dalian University of Technology, 116-024, Dalian, China aut NATIONALLICENCE 700 1- Sun Wei School of Mechanical Engineering, Dalian University of Technology, 116-024, Dalian, China aut NATIONALLICENCE 773 0- International Journal of Precision Engineering and Manufacturing Korean Society for Precision Engineering 14/3(2013-03-01), 451-459 2234-7593 14:3<451 2013 14 12541 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer