Carbon nanotube(CNT)-based fluidic systems hold a great potential for emerging medical applications such as drug delivery systems for cancer therapy. CNTs can be used to deliver anticancer drugs into a target site under a magnetic field guidance. One of the critical issues in designing such systems is how to avoid the vibration induced by the fluid flow, which is undesirable and may even promote the structural instability. The main objective of the present research is to understand the fluid structure interaction (FSI) and the associated flutter instability of a CNT when it is inserted to human body for drug delivery and controlled by magnetic field.
- Configuration of CNT conveying magnetic fluid embedded in biological tissue subjected to a longitudinal magnetic field.
- Example stability diagram for fluid-structure interaction with cantilevered CNT under magnetic field. It shows the critical speed (ucr), which demonstrates the coupled effects of the magnetic field and viscoelastic parameters on it, as a function of the non-dimensional mass ratio β (τ=0.05, Kn=0.001);τ is a nondimensional variable given by τ=ae0/L where a is the internal characteristic length, e0 is the material constant, and L is the length of CNT. Kn is the Knudsen number.
This research has been conducted in collaboration with Prof. Hyock-Ju Kwon.
Related publication
- Sadeghi-Goughari, M. ., Jeon, S. ., & Kwon, H.-J. . (2020). Fluid Structure Interaction of Cantilever Micro and Nanotubes Conveying Magnetic Fluid with Small Size Effects Under a Transverse Magnetic Field. Journal of Fluids and Structures, 94.
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Open configuration options
Sadeghi-Goughari, M. ., Jeon, S. ., & Kwon, H.-J. . (2018). Flutter instability of cantilevered carbon nanotubes caused by magnetic fluid flow subjected to a longitudinal magnetic field. Physica E: Low-Dimensional Systems and Nanostructures, 98, 184-190.
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Sadeghi-Goughari, M. ., Jeon, S. ., & Kwon, H.-J. . (2017). Effects of magnetic-fluid flow on structural instability of a carbon nanotube conveying nanoflow under a longitudinal magnetic field. Physics Letters A, 381, 2898\textendash2905.