Numerical Simulation of Viscoplastic Fluid Flows Through An Axisymmetric Contraction  

Oleh:

Jay, Pascal ; Magnin, Albert ; Piau, Jean Michel

Jenis: Article from Bulletin/Magazine
Dalam koleksi: Journal of Fluids Engineering vol. 124 no. 3 (2002), page 700-705.
Topik: contraction mappings; numerical simulations; viscoplastic; fluid flows; axisymmetric contraction

Ketersediaan

Perpustakaan Pusat (Semanggi) Nomor Panggil: JJ89.3 Non-tandon: 1 (dapat dipinjam: 0) Tandon: tidak ada

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Isi artikel

Flows of viscoplastic fluids through sudden, conical axisymmetric contraction are studied. A finite - element numerical simulation is performed using a biviscosity approximation. Inertia is neglected. The effects of yield stress are analyzed, as are those of shear - thinning, contraction angle, and contraction ratio. The pressure losses, detailed structure of the flow such as the rigid static and moving zones, and the vortex are given in relation to these parameters. Consistent comparisons are also made with the experimental results obtained in the laboratory.

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