The innovation in software analysis and various available programming facilities have urged the designers at various levels to do indispensable calculations for engine flows. Presently, the 3-D analysis approach is under practice to do simulations for various parameters involving engine operations using various softwares, “Fluent” being the trendiest at the moment for CFD modeling. The present ...

An investigation into the total blockage effects on aerodynamic drag in closed-wall wind tunnel testing has been carried out by computational fluid dynamics (CFD). The simulation of flow past two different realistic, full-scale, heavy-duty truck models was conducted. The models were placed at different yawing angles in the virtual wind tunnels with blockage ratio of about 10%; which is exactly ...

This paper introduces two novel concepts in data-driven turbulence modeling that enable the simultaneous development of multiple closure models and training towards objectives. The extend evolutionary framework by Weatheritt Sandberg (2016) [1], which derives interpretable implementation-ready expressions from high-fidelity simulation data. By assigning a shared fitness value to evolved utilizi...

In this validation work two turbulence models (k-ε and SST model) and two grids (a finer hybrid grid and a tetrahedral coarser grid) are considered in order to model helium release and dispersion. Simulation results are compared against an experiment of jet release phenomena in the Battelle Model Containment facility (BMC), a multi-compartment facility with a total volume of about 560 m. In the...

Modelling water vapour flow, heat transfer and porosity in porous adsorbent is somewhat challenging simulation problem. Primary macroscopic water vapour flow models, such as Darcy's law, fail to predict the pressure drop entirely correctly for the reason that many of flow parameters not considered because of the simplifications that remain made for the multi-scale structure of the porous adsorb...

This paper will explore the methods and techniques necessary to perform a more accurate CFD validation of experimental results. The methods and techniques used will be validated against experimental wind tunnel data of a 2D high lift airfoil with a 3D engine performed by Georgia Tech Research Institute. Preliminary results showed that computational methods over predict the lift and drag coeffic...