59 citations · 223 across the 14 of their papers we have counts for
13 papers · 1 filter
Radial flow of an Oldroyd-B fluid: theoretical and simulation results in the ultra-dilute limit
Ron Lottem, Evgeniy Boyko
Pressure-driven radial flows of viscoelastic fluids are common in various industrial applications, such as injection molding and extrusion. It is well known that viscoelastic rheol…
Understanding the Theory--Experiment Discrepancy in Pressure Drop of Dilute Polymer Solutions in Channel Flows
Nan Hu, Jonghyun Hwang, Evgeniy Boyko +1
For decades researchers have experimentally observed that the flow of dilute viscoelastic polymer solutions through contraction or contraction--expansion channels yields results at…
Flow rate-pressure drop relations for shear-thinning fluids in deformable configurations: theory and experiments
SungGyu Chun, Evgeniy Boyko, Ivan C. Christov +1
We provide an experimental framework to measure the flow rate--pressure drop relation for Newtonian and shear-thinning fluids in two common deformable configurations: (\textit{i})…
Reciprocal theorem for calculating the flow rate of oscillatory channel flows
Shrihari D. Pande, Evgeniy Boyko, Ivan C. Christov
We demonstrate the use of the Lorentz reciprocal theorem in obtaining corrections to the steady flow rate due to flow oscillations in rigid channels. Starting from the unsteady Sto…
A note about convected time derivatives for flows of complex fluids
Howard A. Stone, Michael J. Shelley, Evgeniy Boyko
We present a direct derivation of the typical time derivatives used in a continuum description of complex fluid flows, harnessing the principles of the kinematics of line elements.…
Non-Newtonian fluid-structure interaction: Flow of a viscoelastic Oldroyd-B fluid in a deformable channel
Evgeniy Boyko, Ivan C. Christov
We analyze the steady non-Newtonian fluid-structure interaction between the flow of an Oldroyd-B fluid and a deformable channel. Specifically, we provide a theoretical framework fo…