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Showing 1 to 20 of 92 for “"OpenFOAM"”.
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CFD modelling of flow distortion using OpenFOAM
… to wind engineering. The open source CFD code OpenFOAM was applied to three cases (i) flow over an oil platform, (ii) flow over a complex terrain and (iii) flow over a met mast. In order to verify the results, experimental work was undertaken using a low speed wind tunnel. In general, the CFD …
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OpenFOAM Implementation of Microbubble Models for Ocean Applications
… new model was then partially implemented into OpenFOAM. The functioning of this new solver was confirmed by comparisons between the results and basic analytical solutions to the problems, as well as by means of comparison with another similar multiphase CFD solver (pbeTransportFoam). Following …
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Numerical Modeling of Synthetic Vortical Disturbance Interactions Using OpenFOAM
… This study employs an open-source Navier-Stokes OpenFOAM solver to model the turbulent wind flow around a building. Based on the previous studies, a momentum source generating an upstream synthetic disturbance field (such as a time-harmonic gust or turbulence with required characteristics) is …
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Coupling of nanofluid flow, heat transfer and nanoparticles sedimentation using OpenFOAM
… sedimentation, an open source CFD package, OpenFOAM is employed as the basis to develop several numerical solvers in multi-phase way for the first time. More specifically, nanofluid CFD simulations are carried out by several newly developed OpenFOAM solvers under both Eulerian-Langrangian …
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Verification and Validation Study of OpenFOAM on the Generic Prismatic Planing Hull Form
… on Generic Prismatic Planing Hull (GPPH) using OpenFOAM v1806 solver interFoam. The numerical simulation will be compared with the experimental result, which is a new set of high-quality experimental tests performed on a large model of a high deadrise prismatic planing hull with flat of chine, …
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Development of an OpenFOAM Solver for Hydroacoustic Simulations: An Application for Acoustic Fish Deterrence
… It leverages an established numerical framework (OpenFOAM) and deals with understanding how to model the system. The study prioritizes enhancing the accuracy of the methods developed and ways to improve its computational efficiency.
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The Linearized Euler Equations for Predicting Supersonic Jet Noise of a Rectangular Jet Using OpenFOAM
… Equation (LEE) solver that was developed for OpenFOAM. OpenFOAM is an open-source Computational Fluid Dynamics (CFD) package that is widely used by industry and academia. The LEE’s are a set of equations used in Computational Aeroacoustics (CAA). The LEE’s can solve for the acoustic solution …
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Unsteady Simulations of Flow Around a Smooth Circular Cylinder at Very High Reynolds Numbers Using OpenFOAM
… flow characteristics is the open-source toolbox OpenFOAM. OpenFOAM is a robust code used for accurately capturing and predicting incompressible turbulent flow with separation. In this study OpenFOAM is used to implement standardized turbulence models and predict the complex flow physics …
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Simulation of blood flows in a stenosed and bifurcating artery using finite volume methods and OpenFOAM
… on the finite volume methods implemented on the OpenFOAM platform. We employ the Giesekus, Oldroyd-B, and Generalized Oldroyd-B viscoelastic constitutive models in this thesis, depending on the underlying context. Numerical validation of our results is conducted via the most used benchmark flow …
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Caracterização do vento local a partir de modelagem da camada limite planetária e modelagem CFD com OpenFOAM
… com o código CFD (Computational Fluid Dynamics) OpenFOAM. Para a avaliação da metodologia proposta, foram definidos dois estudos de caso, um correspondente a uma estação anemométrica localizada no município de Paracuru (PCR), no estado do Ceará, e outro correspondente a uma estação anemométrica …
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Verification of Statistical Turbulence Models in Aerodynamic Flows
… of an open-source CFD toolbox known as OpenFOAM. In doing so, flow results for two benchmark flow cases obtained with OpenFOAM are compared with the results obtained with high-accuracy NASA CFD codes CFL3D and FUN3D. The benchmark cases are the zero pressure gradient boundary layer of …
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Computational Analysis of Turbulent Flow Around NACA 4412 Airfoil with Open Source CFD Software
… has brought us to our first goal of validating OpenFOAM. OpenFOAM is the CFD tool chosen in this research because of its open-source nature allowing it to be free to the general public and allowing for the implementation of different models. In order to validate OpenFOAM two eddy viscosity …
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Numerical investigation of the combustion of liquid oxygen droplets in an environment of hydrogen under microgravity conditions
… diluted with helium. A numerical model using OpenFOAM as well as a coupled droplet evaporation model based on combining OpenFOAM results with the existing theoretical models have been developed to understand the species and temperature profiles near the droplet surface. The coupled droplet …
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Modeling Outdoor Air Pollution and the Urban Form
… urban canyons. An open-source platform such as OpenFOAM is valuable as it can be fully customized for the varying intricacies of urban airflow and is accessible to a wide audience. This thesis develops a solver for aerial pollutant transport by adding a passive-scalar transport equation to …
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Turbulence models for the numerical prediction of transitional flows with RANSE
… The RANSE solver is built on the libraries of OpenFOAM(Open Field Operation and Manipulation) which is a free, open source CFD program which enables a large group of users to solve broad range of problems. Turbulence models considered range from one equation models such Spalart-Allmaras, …
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Particle-Resolving Simulations of Dune Migration: Novel Algorithms and Physical Insights
… transport problems based on open-source solvers OpenFOAM and LAMMPS. OpenFOAM is a CFD toolbox that can perform three-dimensional flow simulations on unstructured mesh; LAMMPS is a massively parallel DEM solver for molecular dynamics. To enable the particle-resolving simulation of sediment …
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Exploring and Envisioning Periodic Laminar Flow Around a Cylinder
… flow around a cylinder is simulated using OpenFoam, an open source computational fluid dynamics program. To better understand these complex structures downstream, a customized computer graphical tool, VerFlow-V.01, was created to analyze and study OpenFoam simulation results. This study …
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Numerical Modelling of LOX Droplet Combustion in Hydrogen under Micro-gravity Conditions
… in spherically symmetric co-ordinates using OpenFOAM. To model counter-flow combustion with 6-step oxygen/hydrogen reactions, the reactingFoam solver from the OpenFOAM library is employed. A modified version of this reactingFoam solver names ’EBI-DNS’, developed by a team at KIT, Germany, is …
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Aerodynamic and Acoustic Modeling for eVTOL Rotor Noise Prediction
… with higher-fidelity 2D-RANS results from OpenFOAM to better capture low-Reynolds-number flow physics, including laminar-turbulent transition and laminar separation bubble behavior.</p> <p>Predicted acoustic spectra were validated against experimental measurements obtained in the Virginia …
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Genetic Algorithm Based Optimization of Baffle Positions in a Forward Osmosis Draw Channel
… cross-flow channel, the open source CFD package OpenFOAM is used. A compressible flow model with explicit boundary conditions is developed to simulate the flux transfer, ICP and ECP effects present within an asymmetric membrane when exposed to a NaCl solution. Results are validated by comparison …
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