Non-isothermal Simulation of an Annular Extrudate Swell
نویسندگان
چکیده
منابع مشابه
Description of Extrudate Swell for Polymer Nanocomposites
Extrudate swell is often observed to be weakened in nanocomposites compared to the pure polymer matrix. A theory quantifying this would be significant either for optimum processing or for understanding their viscoelasticity. A unified extrudate swell correlation with material properties and capillary parameters was suggested for polymer melt and their nanocomposites when considering the reservo...
متن کاملInfluence of Surface Cooling on Extrudate Swell - a Numerical Study
Influence of convective cooling at the extrudate’s free surfaces on its own swelling behaviour is examined numerically when viscous fluids of a Newtonian type are extruded. In circular die extrusion, increasing the surface heat transfer coefficient h increases extrudate’s thickness swell at low Nahme-Griffith number Na; at high Na, however, this trend tends to be reversed. With annular dies, a ...
متن کاملSpectral/hp element methods for plane Newtonian extrudate swell
Article history: Received 14 August 2014 Received in revised form 22 March 2015 Accepted 2 April 2015 Available online 22 April 2015
متن کاملnumerical simulation of shock waves structure in an annular channel
in this work, the feasibility study for design of a laboratory sample rde which has an annular geometry with diameter of 76 mm and length of 101 mm has been performed. detonation engines are expected to be used as propulsion system in aerospace applications in the future. several types of detonation engines are currently under examination, including the rotating detonation engine (rde). first, ...
متن کاملConvective Cooling of an Extrudate
Convective heat transfer about an isothermal, cylindrical extrudate of constant diameter, issuing continuously from an extrusion die, is investigated numerically, using a commercial CFD software package. The hot extrudate is assumed to move vertically downward, thus giving rise to a combined regime of forced and free convection in the surrounding fluid. Prandtl number of 0.707, corresponding to...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Seikei-Kakou
سال: 2003
ISSN: 0915-4027,1883-7417
DOI: 10.4325/seikeikakou.15.287