%0 Journal Article 
%A Martínez Pastor, Juan
%A Franco Chumillas, Patricio
%A Moratilla Fernández, Domingo
%A López García, Pedro José
%A Faura Mateu, Félix
%T Simulation of gelled propellant doughs isothermal flow through extrusion dies using finite difference method
%D 2017
%@ 2351-9789
%U http://hdl.handle.net/10317/8538
%X During the ram extrusion of gelled propellants, the possible flow instabilities can affect the extruded propellant quality. The numerical modelling helps to enhance the geometry of extrusion die, by minimizing the product distortion caused by material flow during this forming process. In the present work, a numerical model based on the finite difference method is proposed to analyze the flow simulation of double-base gelled propellant doughs through annular channels of extrusion dies. The proposed model implements the pseudo-plastic behavior described by these energetic materials. This model will be used to deduce the configuration of spider legs and annular channels that allow optimize the quality of extruded gelled propellant.
%K Ingeniería de los Procesos de Fabricación
%K Gelled propellants
%K Ram extrusion
%K Numerical simulation
%K Extrusion die
%K Annular channels
%K 3313 Tecnología E Ingeniería Mecánicas
%~ GOEDOC, SUB GOETTINGEN