{
  "abstract": "Rotating channel flows of yield-stress fluids subjected to a transverse magnetic field occur in rotating chemical reactors, magnetohydrodynamic (MHD) energy-conversion devices and cooling passages of rotating machinery. This study analyses the steady, laminar MHD flow of a Casson fluid with temperature-dependent plastic viscosity between two stretching parallel plates that rotate together as a rigid body, with heat and mass transfer described by the Cattaneo–Christov double-diffusion model. Variable thermal conductivity, Rosseland radiation, internal heat generation, viscous and Joule heating produced by both the axial and the swirl velocity components, the Dufour effect and isothermal cubic-autocatalytic homogeneous–heterogeneous reactions are included, and the local entropy generation rate is evaluated. A similarity transformation reduces the problem to a twelfth-order two-point boundary-value problem with twelve boundary conditions, which is solved with the bvp4c collocation solver relative tolerance 10 −8 and verified independently by Chebyshev spectral collocation agreement better than 5 × 10 −8 , by ten exact limiting solutions, and by mesh, tolerance and initial-guess tests. Random-start, deflation and continuation searches, combined with a linear temporal stability analysis, show that the reported solution branch is the physically admissible and linearly stable one; additional branches appear only beyond identified turning points Re = 1.4 for a high-temperature thermal-runaway branch and Re = 4.9 for branches with sub-ambient temperatures. An eleven-factor face-centred central-composite response-surface analysis 156 runs, R 2 > 0.996 for all responses shows that the wall skin friction is governed mainly by the Casson parameter 51% of the main-effect magnitude, the magnetic parameter 21% and the Eckert number 18%; the Nusselt number and the entropy generation are controlled by the Eckert number 52% and the Casson parameter 25–28%; and both Sherwood numbers are controlled by the heterogeneous reaction parameter 69%, the homogeneous reaction parameter 15% and the solutal relaxation parameter 14%, with β × Ec and K × K s as the dominant interactions. These findings are model predictions; their applicability to rotating MHD reactors and catalytic devices requires experimental confirmation.",
  "abstract_shown": true,
  "affiliations": [
    "Department of Mathematics, Acharya Nagarjuna University, Nagarjuna Nagar, A.P., India",
    "Department of Mathematics & Humanities, RVR & JC College of Engineering, Guntur, A.P., India",
    "Department of Mathematics, Vasireddy Venkatadri International Technological University (Erstwhile Vasireddy Venkatadri Institute of Technology), Guntur, Andhra Pradesh, 522508, India; Corresponding author."
  ],
  "article_type": null,
  "arxiv": null,
  "author_total": 3,
  "authors": [
    {
      "affs": [
        0
      ],
      "name": "Syed Abdul Khadar Jilani"
    },
    {
      "affs": [
        1
      ],
      "name": "K.S. Balamurugan"
    },
    {
      "affs": [
        2
      ],
      "name": "G. Dharmaiah"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/c523zhva5n59j.bib",
  "cited_by": 0,
  "doi": "10.1016/j.ijft.2026.101721",
  "fulltext_url": "http://www.sciencedirect.com/science/article/pii/S2666202726001771",
  "id": "c523zhva5n59j",
  "issns": [
    "2666-2027"
  ],
  "landing_url": "https://doi.org/10.1016/j.ijft.2026.101721",
  "language": "en",
  "licence": "CC-BY",
  "licence_label": "CC BY",
  "licence_source": "journal",
  "licence_url": "https://creativecommons.org/licenses/by/4.0/",
  "metadata_licence": null,
  "native_subjects": [
    [
      "lcc",
      "QC251-338.5"
    ],
    [
      "openalex",
      "2206|Heat Transfer and Numerical Methods"
    ]
  ],
  "openalex": "W7223444830",
  "pdf_url": null,
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-30",
  "publisher": "Elsevier",
  "ris": "https://research.draconitic.com/paper/c523zhva5n59j.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T13:44:58Z",
      "native_id": "b683d3b51bc54d3687be42fef681e84b",
      "source": "doaj",
      "url": "https://doi.org/10.1016/j.ijft.2026.101721"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "lcc:QC251-338.5",
      "subfield": "general"
    }
  ],
  "title": "An analysis of homogeneous-heterogeneous chemical reactions, entropy generation, joule heating, variable thermal conductivity, Dufour effect, Cattaneo-Christov heat and mass flux, and MHD flow of the casson fluid in a rotating channel",
  "title_text": "An analysis of homogeneous-heterogeneous chemical reactions, entropy generation, joule heating, variable thermal conductivity, Dufour effect, Cattaneo-Christov heat and mass flux, and MHD flow of the casson fluid in a rotating channel",
  "type": "peer-reviewed",
  "updated_at": "2026-10-30T13:44:58Z",
  "url": "https://research.draconitic.com/paper/c523zhva5n59j",
  "venue": "International Journal of Thermofluids",
  "versions": []
}