Extrud: a coupled heat and flow solver for 3D simulation of aluminium extrusion

• Autorzy: Kvamsdal T. , Okstad K. M. , Abtahi S.
• Języki publikacji: EN

Abstrakty

EN

In this paper, we investigate the simulation of aluminum extrusion processes by means of a newly developed coupled heat- and flow solver. The extrusion problem is here formulated as two sub-problems which are solved separately in a staggered solution strategy: 1) A non-Newtonian Navier-Stokes flow problem where the viscosity depends both on the effective strain rate and the temperature, and 2) a linear heat conduction problem. The extrusion solver is implemented in C++ based on the Difipack software package (see http: //www.nobjects.com/Diffpack). The results of the numerical simulations are verified against physical experiments conducted by the extrusion laboratory at SINTEF in Trondheim.

Słowa kluczowe

EN

finite element method; mixed elements; Stokes problem; extrusion

PL

metoda elementów skończonych; metoda Stokesa; aluminium

• Wydawca: Oficyna Wydawnicza Uniwersytetu Zielonogórskiego
• Czasopismo: International Journal of Applied Mechanics and Engineering
• Rocznik: 2002
• Tom: Vol. 7, no 1
• Strony: 293--310
• Opis fizyczny: Bibliogr. 6 poz., rys., wykr.

Twórcy

autor

Kvamsdal T.

• SINTEF Applied Mathemtics, N-7465 Trondheim, Norway

autor

Okstad K. M.

• SINTEF Applied Mathemtics, N-7465 Trondheim, Norway

autor

Abtahi S.

• SINTEF Materials Technology, N-7465 Trondheim, Norway

Bibliografia

• [1] Ciarlet P.G. (1988): Mathematical Elasticity, Volume I: Three-dimensional Elasticity. - Amsterdam, Netherlands: North-Holland.
• [2] Holthe K. (1991): Numerical Simulation of Aluminium Extrusion. Volume 1: ALMA, Theory Manual. - SINTEF Report No. STF71 F91028, SINTEF Structural Engineering, Trondheim, Norway.
• [3] Lefstad M. and Flatval R. (1999): Ekstrudering av skinne og U-profil I laboratoriepresse ved Sin-tef som underlag for simuleringsprogrammet Ekstrud3D, - Technical Report No. STF24 F99602, SINTEF Materials Technology, Trondheim, Norway.
• [4] Okstad K.M., Kvamsdal T. and Abtahi S. (2000): A coupled heat and flow solver for extrusion simulation. - In: Proceedings of ECCOMAS 2000, Barcelona, Spain, (CD-rom).
• [5] Olson R.M. (1980): Essentials of Engineering Fluid Mechanics. - New York: Harper & Row Publishers.
• [6] Le Tallec P. and Mani S. (1999): Conservation laws for fluid-structure interaction, In: Computational Methods for Fluid-Structure Interaction (T. Kvamsdal et al Ed.). - Trondheim, Norway, Tapir Publishers, pp.61-78.