Conference Papers

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Author: search.filters.author.Sibeesh, P.

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    Variations in the Scroll Ring Characteristics with the Excitability and the Size of the Pinning Obstacle in the BZ Reaction
    (Springer Science and Business Media B.V., 2022) Sibeesh, P.; Amrutha, S.V.; Shajahan, T.K.
    We report the experimental results of the effects of excitability on the wave characteristics of free rotating and pinned scroll rings in the Belousov-Zhabotinsky (BZ) reaction. The experiments show that the stability of the scroll ring depends on the excitability of the medium. At low excitability, the scroll ring becomes less stable and eventually breaks up. As we increase the excitability of the medium, the time period (T) and wavelength (λ ) of the excitation wave decrease while wave velocity (v) increases. Properties of both free and pinned scroll rings change in the same way. However, at a given excitability, both the λ and v of a pinned scroll ring increase with the size of the obstacle. For the range of parameters chosen in our experiments, the excitability changes brought by varying reactant concentrations have a higher impact on the scroll ring properties than those induced by the size of the pinning obstacle. © 2022, The Author(s), under exclusive license to Springer Nature Switzerland AG.
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    Image Acquisition and Electric Field Application in the Belousov-Zhabotinsky Reaction Using LabVIEW
    (Springer Science and Business Media Deutschland GmbH, 2024) Sibeesh, P.; Shajahan, T.K.
    This paper introduces LabVIEW-based software and hardware designed to simultaneously record and control chemical wave activity in the Belousov-Zhabotinsky (BZ) reaction. The chemical waves in the BZ reaction can be controlled by DC and polarized electrical stimuli. Our software can be used to study the interaction of DC or different types of polarized electric fields with chemical waves. The software allows the user to capture and save images for further analysis. © The Author(s), under exclusive license to Springer Nature Switzerland AG 2024.