@article{a360a0dcadf1468bbe5ef71a1ba2c39a,
title = "Inertioelastic Poiseuille flow over a wavy surface",
abstract = "Streamwise boundary undulations induce spanwise vorticity in flows. In Newtonian flow, vorticity decays exponentially with distance from the undulation. However, recent theory for inertioelastic polymeric flow predicts vorticity amplification in a {"}critical layer{"} far from the site of disturbance. Here we present the first experimental evidence for the existence of such critical layers, demonstrating their measurable role in real polymeric flows with inertia. These vorticity amplification effects should be considered in all evaluations of vorticity dynamics in inertioelastic flows with streamline curvature.",
author = "Haward, {Simon J.} and Jacob Page and Zaki, {Tamer A.} and Shen, {Amy Q.}",
note = "Funding Information: S.J.H. and A.Q.S. gratefully acknowledge the support of the Okinawa Institute of Science and Technology Graduate University (OIST) with subsidy funding from the Cabinet Office, Government of Japan. S.J.H. and A.Q.S. also acknowledge funding from the Japan Society for the Promotion of Science (Grants-in-Aid for Scientific Research (C), Grants No. 18K03958 and No. 17K06173, respectively). Kazumi Toda-Peters from OIST is thanked for device fabrication. S.J.H. is grateful to TA Instruments for the donation of a DHR3 rheometer through their Distinguished Young Rheologist Award. T.A.Z. acknowledges support from the National Science Foundation (Grant No. 1511937). Funding Information: S.J.H. and A.Q.S. gratefully acknowledge the support of the Okinawa Institute of Science and Technology Graduate University (OIST) with subsidy funding from the Cabinet Office, Government of Japan. S.J.H. and A.Q.S. also acknowledge funding from the Japan Society for the Promotion of Science (Grants-in-Aid for Scientific Research (C), Grants No. 18K03958 and No. 17K06173, respectively). Kazumi Toda-Peters from OIST is thanked for device fabrication. S.J.H. is grateful to TA Instruments for the donation of a DHR3 rheometer through their Distinguished Young Rheologist Award. T.A.Z. acknowledges support from the National Science Foundation (Grant No. 1511937). Publisher Copyright: {\textcopyright} 2018 authors. Published by the American Physical Society. Copyright: Copyright 2018 Elsevier B.V., All rights reserved.",
year = "2018",
month = sep,
doi = "10.1103/PhysRevFluids.3.091302",
language = "English (US)",
volume = "3",
journal = "Physical Review Fluids",
issn = "2469-990X",
publisher = "American Physical Society",
number = "9",
}