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An Experimental and Numerical Investigation of Closed-loop Impedance Pumping in Compliant, Elastic Tube Millistructures

Rich, Bryan C
http://rave.ohiolink.edu/etdc/view?acc_num=akron1460380059

Abstract Details

2016, Master of Science in Engineering, University of Akron, Mechanical Engineering.
Flow through a fluid-filled compliant microstructure subject to periodic perturbations is not fully understood. An improved understanding of this phenomena sought herein, as it may be useful for mimicry of biological flows in microfluidic devices. An experiment was designed to study the fluid flow produced within a closed-loop network of tubing, having a compliant millitube section subject to periodic perturbations from a probe. Perturbations with a variety of frequencies and amplitudes were applied to the compliant millitube section at five locations and three initial compressions. Experimental results demonstrate fluid circulation within the closed-loop of tubing, which varied significantly with frequency, amplitude, and location of applied perturbations. Complimentary to the experimental analysis, a fluid-structure interaction model of the probe and compliant millitube section was created in COMSOL. Perturbations with the same frequencies and of similar amplitudes were applied to the compliant millitube geometry at the same five locations. Numerical results obtained also demonstrate fluid circulation within the compliant millitube geometry which varied significantly amplitude and location, providing a measure of validation. Results of both the experimental and numerical study agree in magnitude and in some trends of flow behavior. Results differ in that a change of flow direction about the center location of the compliant millitube section was observed numerically but not experimentally. Overall, the study herein demonstrates a unique pumping mechanism which utilizes period perturbations of a compliant structure to create a net positive displacement of fluid.
Nicholas Garafolo, Dr. (Advisor)
Sawyer Scott, Dr. (Committee Member)
136 p.
Biomedical Engineering; Mechanical Engineering
compliant tube; flexible tube; impedance pump; micro pump; micropump; Liebau; acoustic streaming

Recommended Citations

Citations

  • Rich, B. C. (2016). An Experimental and Numerical Investigation of Closed-loop Impedance Pumping in Compliant, Elastic Tube Millistructures [Master's thesis, University of Akron]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=akron1460380059

    APA Style (7th edition)

  • Rich, Bryan. An Experimental and Numerical Investigation of Closed-loop Impedance Pumping in Compliant, Elastic Tube Millistructures. 2016. University of Akron, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=akron1460380059.

    MLA Style (8th edition)

  • Rich, Bryan. "An Experimental and Numerical Investigation of Closed-loop Impedance Pumping in Compliant, Elastic Tube Millistructures." Master's thesis, University of Akron, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=akron1460380059

    Chicago Manual of Style (17th edition)

akron1460380059
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© 2016, all rights reserved.
This open access ETD is published by University of Akron and OhioLINK.