A Numerical Investigation of The Detachment of The Trailing Particle From A Chain Sedimenting in Newtonian and Viscoelastic Fluids  

Oleh:

Hu, H. H. ; Patankar, N. A.

Jenis: Article from Bulletin/Magazine
Dalam koleksi: Journal of Fluids Engineering vol. 122 no. 3 (2000), page 517-521.
Topik: FLUIDS; numerical investigation; detachment; article; chain; trailing particle; newtonian; viscoelastic fluids

Ketersediaan

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

Lihat Detail Induk

Isi artikel

Particles sedimenting in a viscoelastic fluid form chains. It has been observed in experiments that, sometimes, the last particle in the chain gets detached. In this paper, we investigate this phenomenon. It is known that a long chain falls faster than a single particle in fluids. This long body effect tends to detach the last particle from the chain. The wake effect and the normal stress effect are the mechanisms that work against the long body effect. The last particle is not detached if the inertial wake effects are strong enough to cause substantial drag reduction on it. The detachment is also restricted by the elastic normal stress of the viscoelastic fluid.

Opini Anda

Klik untuk menuliskan opini Anda tentang koleksi ini!

Kembali