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Parallel Comput."],"published-print":{"date-parts":[[2023,3,31]]},"abstract":"<jats:p>Compact schemes are often preferred in performing scientific computing for their superior spectral resolution. Error-free parallelization of a compact scheme is a challenging task due to the requirement of additional closures at the inter-processor boundaries. Here, sources of the error due to sub-domain boundary closures for the compact schemes are analyzed with global spectral analysis. A high-accuracy parallel computing strategy devised in \u201c A high-accuracy preserving parallel algorithm for compact schemes for DNS. ACM Trans. Parallel Comput. 7, 4, 1-32 (2020)\u201d systematically eliminates error due to parallelization and does not require overlapping points at the sub-domain boundaries. This closure is applicable for any compact scheme and is termed here as non-overlapping high-accuracy parallel (NOHAP) sub-domain boundary closure. In the present work, the advantages of the NOHAP closure are shown with the model convection equation and by solving the compressible Navier\u2013Stokes equation for three-dimensional Rayleigh\u2013Taylor instability simulations involving multiphysics dynamics and high Reynolds number flow past a natural laminar flow airfoil using a body-conforming curvilinear coordinate system. Linear scalability of the NOHAP closure is shown for the large-scale simulations using up to 19,200 processors.<\/jats:p>","DOI":"10.1145\/3580005","type":"journal-article","created":{"date-parts":[[2023,1,17]],"date-time":"2023-01-17T12:07:21Z","timestamp":1673957241000},"page":"1-28","update-policy":"https:\/\/doi.org\/10.1145\/crossmark-policy","source":"Crossref","is-referenced-by-count":13,"title":["Non-overlapping High-accuracy Parallel Closure for Compact Schemes: Application in Multiphysics and Complex Geometry"],"prefix":"10.1145","volume":"10","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-2668-9972","authenticated-orcid":false,"given":"Prasannabalaji","family":"Sundaram","sequence":"first","affiliation":[{"name":"Department of Aerospace Engineering, Indian Institute of Technology Kanpur, Kanpur, Uttar Pradesh, India"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-7164-7221","authenticated-orcid":false,"given":"Aditi","family":"Sengupta","sequence":"additional","affiliation":[{"name":"Department of Mechanical Engineering, Indian Institute of Technology (Indian School of Mines) Dhanbad, Dhanbad, Jharkhand, India"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-8976-1030","authenticated-orcid":false,"given":"Vajjala K.","family":"Suman","sequence":"additional","affiliation":[{"name":"Computational and Theoretical Fluid Dynamics Division, National Aerospace Laboratories, Bangalore, Karnataka, India"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-4698-9390","authenticated-orcid":false,"given":"Tapan K.","family":"Sengupta","sequence":"additional","affiliation":[{"name":"Department of Mechanical Engineering, Indian Institute of Technology (Indian School of Mines) Dhanbad, Dhanbad, Jharkhand, India"}]}],"member":"320","published-online":{"date-parts":[[2023,3,29]]},"reference":[{"key":"e_1_3_1_2_2","doi-asserted-by":"publisher","DOI":"10.1006\/jcph.1996.0156"},{"key":"e_1_3_1_3_2","volume-title":"Second Coefficient of Viscosity in Air","author":"Ash R. 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