Density diffusion in low Mach number flows

نویسندگان

چکیده

Abstract In the realm of compressible viscous flow modelling, we briefly revisit debate on a possible inconsistency Navier-Stokes (NS) equations. Then, recall recent proposal from literature, put forward by M. Svärd. One its features is mass diffusive term in continuity equation. The presence density diffusion Svärd model reduces dispersive numerical errors when simple centred 2nd order, free, spatial schemes are used, as confirmed simulations doubly-periodic shear layer at Ma = 0.05 and Re 10 4 . Further reduction discretisation level more sophisticated approximation techniques.

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ژورنال

عنوان ژورنال: Journal of physics

سال: 2022

ISSN: ['0022-3700', '1747-3721', '0368-3508', '1747-3713']

DOI: https://doi.org/10.1088/1742-6596/2367/1/012027