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Data for "Force and torque-free helical tail robot to study low Reynolds number microorganism swimming"

Full Metadata

Overview

Year:
2022
Contributor:
Das, Asimanshu (Creator)
Harris, D.M. (Creator)
Subject:
Robots
Helical propulsion
DOI
https://doi.org/10.26300/r7yd-jg85

Files

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Description

Abstract:
Design files, movie files, for stability check and code for submitted manuscript "Force and torque-free helical tail robot to study low Reynolds number microorganism swimming". Paper abtsract: Helical propulsion is used by many microorganisms to swim in viscous-dominated environments. Their swimming dynamics are relatively well understood, but detailed study of the flow fields and actuation mechanisms are still needed to realize wall effects and hydrodynamic interactions. In this letter, we describe the development of an autonomous swimming robot with a helical tail that operates in the Stokes regime. The device uses a battery-based power system with a miniature motor that imposes a rotational speed to a helical tail. The speed, direction, and activation are controlled electronically using an infrared remote control. Since the robot is about 5 centimeters long, we use highly viscous fluids to match the Reynolds number to be Re⪅0.1. Measurements of swimming speeds are conducted for a range of helical wavelengths, λ, head geometries and rotation rates, ω. We provide comparisons of the experimental measurements with analytical predictions derived from resistive force theory. This force and torque-free neutrally-buoyant swimmer mimics the swimming strategy of bacteria more closely than previously used designs and offers a lot of potential for future applications.

Content

Access Conditions

Use and Reproduction
Attribution 4.0 International (CC BY 4.0)
Rights
In Copyright

Citation

Das, Asimanshu, and Harris, D.M., "Data for 'Force and torque-free helical tail robot to study low Reynolds number microorganism swimming'" (2022). Brown University Open Data Collection. Brown Digital Repository. Brown University Library. https://doi.org/10.26300/r7yd-jg85

Relations

Has Parts:

  • Child thumbnail
    Arduino code for motor control
    • Type: Archive
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    Swimmer CAD files
    • Type: Archive
    • Order: 2
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    Stability video
    • Type: Video
    • Order: 3
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    Stability video
    • Type: Stream
    • Order: 3
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  • Child thumbnail
    Spherical head swimmer with helical tail angle, θ = 38◦
    • Type: Stream
    • Order: 4
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  • Child thumbnail
    Spherical head swimmer with helical tail angle, θ = 38◦
    • Type: Video
    • Order: 4
    • View
  • Child thumbnail
    Cylindrical head swimmer with helical tail angle, θ = 72◦
    • Type: Stream
    • Order: 5
    • View
  • Child thumbnail
    Cylindrical head swimmer with helical tail angle, θ = 72◦
    • Type: Video
    • Order: 5
    • View

Collection:

  • Brown University Open … Thumbnail

    Brown University Open Data Collection

    This collection contains open and publicly-funded data sets created by Brown University faculty and student researchers. Increasingly, publishers, and funders are requiring that protocols, data sets, metadata, and code underlying published research be retained and preserved, their locations cited within …
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