abstract

• When two spaces of different gas pressure are connected through a nozzle forming and spreading a gas jet with certain energetic characteristics is observed in the region of the lower pressure. If a solid body is located in the region of the jet spreading, then this case is defined as an impinging gas jet. The aim of this work is to consider a specific case of this heat transfer method using 3D virtual simulation models known as Computational Fluid Dynamics - CFD. The simulations were performed in the commercial solver Star-CCM%2b version 6.04.014 using two turbulence models: Shear Stress Transport - SST and v2f Low-Reynolds Number (Re) k-ϵ model. The obtained results are represented by a dimensionless Nusselt number (Nu) and its local validation determines the accuracy of the solver when using a digital twin describing a real measurement set-up with known empirical measurements in digital format. © 2019 IOP Publishing Ltd.

authors

• Mirabal García Manuel
• Nikolov V.
• Stoyanov V.

publication date

• 2019-01-01

funding provided via

• BG05M2OP001-1.002-0023  Grant
• European Regional Development Fund, FEDER  Grant
• Research and Development  Grant

published in

• IOP Conference Series: Materials Science and Engineering  Proceedings

keywords

• Computational fluid dynamics; Gas dynamics; Reynolds number; Shear stress; Turbulence models; Commercial solvers; Empirical measurement; Energetic characteristics; Heat transfer methods; Low Reynolds number; Real measurements; Shear-stress transport; Virtual simulation models; Heat transfer

Digital Object Identifier (DOI)

• 10.1088/1757-899X/618/1/012064

start page

end page

volume

• 618

issue

• 1