Theoretical studies of droplet deformation in finite Reynolds number flows

David S. Dandy

doi:10.1117/12.145701

24 May 1993 Theoretical studies of droplet deformation in finite Reynolds number flows

David S. Dandy

Proceedings Volume 1862, Laser Applications in Combustion and Combustion Diagnostics; (1993) https://doi.org/10.1117/12.145701
Event: OE/LASE'93: Optics, Electro-Optics, and Laser Applications in Scienceand Engineering, 1993, Los Angeles, CA, United States

Abstract

A numerical technique is presented for the study of drops and particles in three-dimensional flows. Solutions have been obtained for uniform flow past drops, and for linear shear flows past particles and drops. The results indicate that, at low Reynolds (Re) and finite Weber (We) numbers, the drops deform to spherical cap shapes; as the Reynolds number is increased, the shapes become ellipsoidal. Coincident with the ellipsoidal shapes is the appearance of a detached recirculating eddy on the downstream side of the drop. For non-zero shear rates, the lift coefficient is approximately constant over a wide range of intermediate Reynolds numbers. At low Reynolds numbers and shear rates, the lift coefficient varies as Re^-1/2 for constant shear rate.

Citation Download Citation

David S. Dandy "Theoretical studies of droplet deformation in finite Reynolds number flows", Proc. SPIE 1862, Laser Applications in Combustion and Combustion Diagnostics, (24 May 1993); https://doi.org/10.1117/12.145701

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