Large Amplitude Oscillatory Extension (LAOE)

Research Project

Project/Area Number	24K07332
Research Category	Grant-in-Aid for Scientific Research (C)
Allocation Type	Multi-year Fund
Section	一般
Review Section	Basic Section 19010:Fluid engineering-related
Research Institution	Okinawa Institute of Science and Technology Graduate University
Principal Investigator	HAWARD Simon 沖縄科学技術大学院大学, マイクロ・バイオ・ナノ流体ユニット, グループリーダー (20812986)
Project Period (FY)	2024-04-01 – 2027-03-31
Project Status	Granted (Fiscal Year 2024)
Budget Amount *help	¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000) Fiscal Year 2026: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000) Fiscal Year 2025: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000) Fiscal Year 2024: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
Keywords	rheology / extensional flow / polymer solution / viscosity / viscoelasticity
Outline of Research at the Start	Large Amplitude Oscillatory Shear is a powerful tool for characterizing complex viscoelastic fluids. However, the potential of oscillatory flows for measuring extensional properties of complex fluids is largely unexplored. We aim to develop methods for testing the rheological response of viscoelastic fluids to Large Amplitude Oscillatory Extension. This will lead to advancements in the understanding and measurement of the extensional properties of viscoelastic fluids. Results will be important in optimizing time-dependent fluid processing operations like fiber spinning and ink-jet printing.