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dc.contributor.authorSanal Kumar, V. R
dc.contributor.authorSankar, Vigneshwaran
dc.contributor.authorChandrasekaran, Nichith
dc.contributor.authorSaravanan, Vignesh
dc.contributor.authorSukumaran, Ajith
dc.contributor.authorRajendran, Vigneshwaran
dc.contributor.authorChoudhary, Shiv Kumar
dc.contributor.authorRadhakrishnan, Pradeep Kumar
dc.contributor.authorOommen, Charlie
dc.contributor.authorPanchal, Dhruv
dc.contributor.authorRafic, Sulthan Ariff Rahman Mohamed
dc.contributor.authorBharath, Rajaghatta Sundararam
dc.contributor.authorRaj, Yash
dc.contributor.authorShrivastava, Srajan
dc.date.accessioned2022-04-13T13:23:24Z
dc.date.available2022-04-13T13:23:24Z
dc.date.issued2022-04-08
dc.identifier.citationSanal Kumar, V. R., Sankar, V., Chandrasekaran, N., Saravanan, V., Sukumaran, A., Rajendran, V., Choudhary, S. K., Radhakrishnan, P. K., Oommen, C., Panchal, D., Rafic, S. A. R. M., Bharath, R. S., Raj, Y., & Shrivastava, S. (2022). Universal benchmark data of the three-dimensional boundary layer blockage and average friction coefficient for in silico code verification. Physics of Fluids, 34(4), 041301. https://doi.org/10.1063/5.0086638
dc.identifier.issn1070-6631
dc.identifier.issn1089-7666
dc.identifier.doi10.1063/5.0086638
dc.identifier.urihttp://hdl.handle.net/10754/676250
dc.description.abstractThe first law of thermodynamics reveals that all fluids are compressible, and the second law of thermodynamics entails all fluids to have positive viscosity. These established laws reaffirm the possibilities of the occurrence of Sanal flow choking in yocto to yotta scale systems and beyond [Kumar et al., “Discovery of nanoscale Sanal flow choking in cardiovascular system: Exact prediction of the 3D boundary-layer-blockage factor in nanotubes,” Sci. Rep. 11, 15429 (2021); “Sanal flow choking: A paradigm shift in computational fluid dynamics code verification and diagnosing detonation and hemorrhage in real-world fluid-flow systems,” Global Challenges 4, 2000012 (2020)]. The Sanal flow choking occurs in the real-world flows at a critical total-to-static pressure ratio [Kumar et al., “Abstract P422: Sanal flow choking leads to hemorrhagic stroke and other neurological disorders in earth and human spaceflight,” Circul. Res. 129(1), AP422 (2021)]. At the Sanal flow choking condition, the Rayleigh-flow-effect (thermal choking) and the Fanno-flow-effect (choking due to frictional effects) unite at a unique site of the sonic-fluid-throat. In this article, the two-dimensional (2D) and the three-dimensional (3D) boundary-layer-blockage factors and average friction coefficient are generated for different working fluids passing through a cylindrical port, at the Sanal flow choking condition, as universal benchmark data for a credible verification of in silico codes for both adiabatic and diabatic flows. The outlook, advancement, and significance of the analytical methodology, invoked for developing Sanal flow choking model using well-posed initial conditions, for generating the universal benchmark data for computational fluid dynamics code verification are critically reviewed herein. The closed-form analytical models presented herein for predicting the 2D and the 3D boundary-layer-blockage factors at the sonic-fluid-throat of adiabatic and diabatic flows and average friction coefficient in a circular duct at the Sanal flow choking condition are fabulously unaffected with any errors due to discretization and fully freed from empiricism for a credible decision making on various high fidelity numerical simulations. The Sanal flow choking model offers the luxury to the scientific community for solving numerous unresolved problems in boundary layer theory. It provides universal benchmark data for various applications irrespective of the laminar/turbulence flow features in wall-bounded compressible viscous flow systems. The 2D and 3D in silico simulation results are presented for demonstrating conclusively the possibilities of the occurrence of the Sanal flow choking and streamtube flow choking [Kumar et al., “The theoretical prediction of the boundary layer blockage and external flow choking at moving aircraft in ground effects,” Phys. Fluids 33(3), 036108 (2021).] in internal and external flows. The phenomenological manifestation of the flow choking phenomenon reported herein extends disruptive technologies at the cutting-edge to solve century-long unresolved scientific problems in physics of fluids with credibility.
dc.description.sponsorshipV.R.S.K. thanks the Science and Engineering Research Board (SERB), the Government of India for the necessary support (File No. ITS/2018/002316) for originating this historical work (File No. SPR/2021/000194).
dc.description.sponsorshipHightower Professor Suresh Menon, the Daniel Guggenheim School of Aerospace Engineering, Georgia Tech, USA, and his team for simulating the phenomenon of Sanal flow choking and streamtube flow choking in a dual-thrust rocket motor using a high-fidelity multi-physics solver, LESLIE
dc.publisherAIP Publishing
dc.relation.urlhttps://aip.scitation.org/doi/10.1063/5.0086638
dc.rightsThis article may be downloaded for personal use only. Any other use requires prior permission of the author and AIP Publishing. The following article appeared in Physics of Fluids and may be found at http://doi.org/10.1063/5.0086638.
dc.titleUniversal benchmark data of the three-dimensional boundary layer blockage and average friction coefficient for in silico code verification
dc.typeArticle
dc.contributor.departmentKAUST, Mechanical Engineering, Clean Combustion Research Center, Thuwal 23955, Saudi Arabia
dc.identifier.journalPhysics of Fluids
dc.rights.embargodate2023-04-08
dc.eprint.versionPublisher's Version/PDF
dc.contributor.institutionIndian Space Research Organisation, Vikram Sarabhai Space Centre, Trivandrum 695 022, Kerala, India
dc.contributor.institutionIndian Institute of Science, Aerospace Engineering, Bangalore 560012, Karnataka, India
dc.contributor.institutionKumaraguru College of Technology, Aeronautical Engineering, Coimbatore 641 049, Tamil Nadu, India
dc.contributor.institutionSeoul National University, Aerospace Engineering, Gwanak-gu, Seoul 08826, South Korea
dc.contributor.institutionAll India Institute of Medical Sciences, Cardiothoracic and Vascular Surgery, New Delhi 110608, India
dc.contributor.institutionGITAM University, Chief Division of Cardiothoracic and Vascular Surgery, Visakhapatnam 530045, Andhra Pradesh, India
dc.contributor.institutionAmity University, Amity Institute of Aerospace Engineering, Noida 201 313, Uttar Pradesh, India
dc.contributor.institutionDhruv Aerospace, Computational Fluid Dynamics Group, Ahmedabad 382481, Gujarat, India
dc.identifier.volume34
dc.identifier.issue4
dc.identifier.pages041301
kaust.personSankar, Vigneshwaran


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