... and isoflux boundary condition are also presented in this section. The transient flow and heat transfer in the straight duct with constant cross-sections are governed by the continuity equation, Navier stokes, and energy equations. In OpenFOAM, the general form of continuity equation [ equation (1...

... are implemented as function objects within the OpenFOAM framework for estimating the blade’s AoA and relative velocity. For the numerical analysis of the flow around and through the VAWT, 2 D unsteady Reynolds-averaged Navier–Stokes (URANS) simulations are carried out and validated against experimental data...

... was proposed. Modified model is suitable for simulating internal flows in pipes and parallel-plate channels. Implementation of the modified model was made using the OpenFOAM framework. Values of several constants of the original model were modified. Findings For selected Reynolds numbers and turbulence...

...) ν u = C μ k u 2 ϵ u , Sawan S. Sinha can be contacted at: sawan@iitd.ac.in 27 09 2018 27 09 2018 14 10 2018 © Emerald Publishing Limited 2019 Emerald Publishing Limited Licensed re-use rights only OpenFOAM Non-linear eddy viscosity...

... of a burner. The methodology was validated on two laboratory-scale jet flames: Delft Jet-in-Hot-Coflow and Sandia CHN B. The simulations were carried out with open source code OpenFOAM. Findings The proposed relations for turbulence kinetic energy and its dissipation rate at the inlet are found to provide...

... model has been implemented into an OpenFOAM solver, with an Eulerian-Lagrangian approach. In particular, the fully 3D approach here presented, directly solves for the gas and solid evolution in both the combustion bed and the freeboard. Special care has also been devoted to the treatment of radiating...