Computational Modeling and Simulation of Nonisothermal Free-surface Flow of a Liquid Jet Impinging on a Heated Surface

Abstract

The study is aimed at formulating and validating the computational model for the nonisothermal two-phase flow with freesurfaces. The testing flow configuration consists of the liquid jet impacting on a heated wall generating simultaneous heat transfer from the wall surface. The interface capturing methodology implemented in the open-source software OpenFOAM based on the volume-of-fluid (VOF) model in the framework of Computational Fluid Dynamics (CFD) is extended to incorporate heat transfer. The potential of the model is evaluated by contrasting the results of numerical simulations to the existing experimental and numerical results. The computational procedure based on the numerical model demonstrates good qualitative and quantitative predictive capabilities by reproducing correctly the studied flow and heat transfer characteristics.

Numerical Simulation of A Radial Free Surface Liquid Jet Impinging on A Heated Surface

“…The results obtained are validated against the experiment done by Steven et al [4]. The results are also compared with the formula proposed by Liu [3] and the numerical work done by Edin et al [7]. The present results for Nu distribution are in a good agreement with all the results.…”

“…et al and Edin et al with a close agreement[5,7]. Free surface for uniform inlet velocity profile (left) and one-seventh power law inlet velocity profile (middle).…”

“…A grid dependence study is first conducted for the case. The study continued with the detail investigation of the influence of jet velocity profile where the development of free surface, variations in pressure, and the Nusselt number (Nu) across the heated surface are validated against the experiment and already published computational works [4,5,7]. The Nusselt number (Nu) is the characterization of the distribution of temperature and heat flux.…”

“…The mesh is resolved near the boundary. The analysis is carried out using a uniform velocity at inlet and results are compared against the published paper by Edin et al [7]. The numerically obtained results are also validated against experiment.…”

“…In the year 2003, Tong et al performed the numerical study and showed the influence of jet velocities on the pressure and heat transfer from the solid surface to the film [5]. Fujimoto et al published their work in 1999 using numerical simulations [6] whereas Edin et al also predicted pressure distribution and local Nusselt number variation applying computational modelling in 2015 [7].…”