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ISSN On-line: 2688-7231

ISBN On-line: 978-1-56700-524-0

Proceedings of the 26thNational and 4th International ISHMT-ASTFE Heat and Mass Transfer Conference December 17-20, 2021, IIT Madras, Chennai-600036, Tamil Nadu, India
December, 17-20, 2021, IIT Madras, Chennai, India

General pressure equation based algorithm for solving incompressible flow equations on collocated grids

Get access DOI: 10.1615/IHMTC-2021.1810
pages 1197-1203


Numerical simulations of incompressible flows are challenging because of the unavailability of a separate equation for pressure. Conventional methods that involve solving the pressure Poisson equation like SIMPLE, projection methods, etc., as well as the artificial compressibility method (ACM) that requires dual timestepping are found to be expensive. A novel ACM based single time-stepping method, called as the general pressure equation (GPE), is used to develop an incompressible flow solver on collocated grids. The consequent pressure oscillations are annihilated by using an approximate Riemann solver, called as the HLL-C to discretise the convective terms.
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