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Flow through a tunnel with columns- Fluid Mechanics - cyclicAMI - OpenFOAM 2112

0:51

Flow through a fish passage simulation - Fluid Mechanics - interFoam - OpenFOAM 2112

1:58

Flow through bottom discharger Simulation - Fluid Mechanics - DualSPHysics

0:55

Disk Water Entry Simulation - Fluid Mechanics - interIsoFoam - OpenFOAM 2112

0:57

Coffee Stirring Simulation - Fluid Mechanics - interMixingFoam - OpenFOAM 2112

0:49

Stone skipping - Fluid Mechanics - Overset grid - overInterDyMFoam - OpenFOAM 2112

0:47

Toilet Flushing 🚽 - Fluid Mechanics - interIsoFoam - OpenFOAM 2112

This video shows the implementation of an OpenFOAM model for the case of of a flush toilet.
It uses interIsoFoam to solve the free surface, and URANS treatment to solve the turbulence, using the `kOmegaSST` model.
The source code for the cases can be found in the following repository:
github.com/nicolasbadano/Toilet
#cfd #mesh #OpenFOAM #grid #numericalmodeling #computationalhydraulics #mechanicalengineering #mechanical #research #simulation #cae #fluiddynamics #fluidmechanics #turbulence #aerodynamics #automative #aerospace #flow #motorsport #openfoam #ansys #starccm #opensource #technology

มุมมอง: 1 735

วีดีโอ

Flow through a tunnel with columns- Fluid Mechanics - cyclicAMI - OpenFOAM 2112

0:51

Flow through a tunnel with columns- Fluid Mechanics - cyclicAMI - OpenFOAM 2112

มุมมอง 3.2Kปีที่แล้ว

This video shows the implementation of an OpenFOAM model for the case of flow through an old underground river with a roof supported by columns (inspired by a few running under Buenos Aires). The case implements offset cyclicAMI patches to simulate only a portion of the tunnel, allowing to quickly reach steady-state conditions. Using AMI means that the mesh doesn't need to match perfectly betwe...

Flow through a fish passage simulation - Fluid Mechanics - interFoam - OpenFOAM 2112

1:58

Flow through a fish passage simulation - Fluid Mechanics - interFoam - OpenFOAM 2112

มุมมอง 8Kปีที่แล้ว

This video shows the implementation of an OpenFOAM model for the case of fish passage. It uses interFoam to solve the free surface, and a Delayed Eddy Simulation treatment to solve the turbulence, using the kOmegaSSTDDES model. The model has a couple of interesting features, that apply to other cases: - A fixed water level boundary condition in the downstream boundary, which is achieved by fixi...

Flow through bottom discharger Simulation - Fluid Mechanics - DualSPHysics

0:55

Flow through bottom discharger Simulation - Fluid Mechanics - DualSPHysics

มุมมอง 6K2 ปีที่แล้ว

Smoothed Particle Hydrodynamics (#SPH) is a really interesting method for computational hydraulic problems; it treats the fluid as a set of particles and solves the lagrangian equations of motion for each one. A kernel function is used to interpolate the flow variables around the particles, and compute inter-particle interactions. In the video, I show the flow results through a 12 m2 bottom dis...

Disk Water Entry Simulation - Fluid Mechanics - interIsoFoam - OpenFOAM 2112

0:57

Disk Water Entry Simulation - Fluid Mechanics - interIsoFoam - OpenFOAM 2112

มุมมอง 4.3K2 ปีที่แล้ว

We are investigating the wall effect on the splash formation from a disk entry, using experimental and numerical methods. In this experiment, I present the setup of our first preliminary numerical simulation. The 3" disk was dropped from a 30 cm height, into a water tank of 15x15 cm2. For these #OpenFOAM model, we are using a moving mesh technique (via dynamicMotionSolverFvMesh), instead of ove...

Coffee Stirring Simulation - Fluid Mechanics - interMixingFoam - OpenFOAM 2112

0:49

Coffee Stirring Simulation - Fluid Mechanics - interMixingFoam - OpenFOAM 2112

มุมมอง 11K2 ปีที่แล้ว

What happens within your mug when you stir your coffee? In this OpenFOAM case we get to see this process unfold, courtesy of Computation Fluid Dynamics (CFD). The mesh for this case is generated using snappyHexMesh. A cylindrical set of faces is generated, which is then duplicated and transformed into a pair of Arbitrary Mesh Interface patches (AMI) patches. When doing so, the mesh gets divided...

Stone skipping - Fluid Mechanics - Overset grid - overInterDyMFoam - OpenFOAM 2112

0:47

Stone skipping - Fluid Mechanics - Overset grid - overInterDyMFoam - OpenFOAM 2112

มุมมอง 47K2 ปีที่แล้ว

Overset gridding refers to the use of multiple disconnected grids to discretize the flow domain, which can overlap each other. For moving objects, you would typically have a fixed base grid, discretizing the entire flow domain, and a second grid discretizing the zone around the object in greater detail, which would move following the object itself. With that setup you can always have great disc...

Dam Reservoir with Weir - Fluid Mechanics - Local Time Stepping (LTS) - OpenFOAM 2112

0:41

Dam Reservoir with Weir - Fluid Mechanics - Local Time Stepping (LTS) - OpenFOAM 2112

มุมมอง 3.4K2 ปีที่แล้ว

This video shows an example on how to implement the Local Time Stepping (LTS) scheme on OpenFOAM simulations. Sometimes numerical problems are stiff, meaning you have two related timescales: one that is fast and requires a small time step to maintain stability, and the other much slower, which requires long simulation times to reach a steady state. If you are only interested in that final stead...

Flow around a cylinder - Adaptive Mesh Refinement (AMR) - Fluid Mechanics - OpenFOAM 2112

0:42

Flow around a cylinder - Adaptive Mesh Refinement (AMR) - Fluid Mechanics - OpenFOAM 2112

มุมมอง 9K2 ปีที่แล้ว

This video shows the implementation of Adaptive Mesh Refinement (AMR) technique on OpenFOAM 2112 to solve the case a flow around a cylinder, generating a Von Karman vortex street. The mesh is dynamically refined when the magnitude of the velocity gradient exceeds 30 1/s, and is unrefined when it goes below 10 1/s. The source code for the case is available at: github.com/nicolasbadano/GradientAM...

Interacción entre Modelos Físicos y Numéricos en Hidráulica

34:12

Interacción entre Modelos Físicos y Numéricos en Hidráulica

มุมมอง 6182 ปีที่แล้ว

Presentación brindada en ocasión del "Seminario sobre Modelación Hidráulica" organizado en el marco del curso "Modelos Físicos y Métodos Experimentales en Hidráulica", de la Maestría en Recursos Hídricos y Doctorado en Ciencias de la Ingeniería de la Facultad de Ciencias Exactas, Físicas y Naturales de la Universidad Nacional de Córdoba. Dr. Ing. Nicolás Badano 24 de Junio de 2022

Weir with moving gate - Fluid Mechanics - Moving mesh and Cyclic AMI - OpenFOAM 2112

0:26

Weir with moving gate - Fluid Mechanics - Moving mesh and Cyclic AMI - OpenFOAM 2112

มุมมอง 8K2 ปีที่แล้ว

This video shows the implementation of a moving mesh technique on OpenFOAM 2112 to solve the case of a weir gate opening. The simulation uses displacementLayeredMotion and Cyclic AMI. The source code for the case is available at: github.com/esteldunedain/WeirWithMovingGate More details are available here: www.linkedin.com/posts/nicolas-diego-badano_openfoam-moving-gate-activity-6945003529677725...

Hydrodynamic simulation of the flow in the Paraná River

2:00

Hydrodynamic simulation of the flow in the Paraná River

มุมมอง 1.5K2 ปีที่แล้ว

The simulation was performed using Delft3D with a very fine-resolution mesh. Results are visualized with custom real-time post-processing software, using the Unity game engine.

Morphological Simulation of Ab. Correntoso Stretch, on the Paraná River

0:23

Morphological Simulation of Ab. Correntoso Stretch, on the Paraná River

มุมมอง 7802 ปีที่แล้ว

The simulation of hydrodynamic, sediment transport and morphological processes was performed using Delft3D. Visualization was done using custom software, programmed using the Unity game engine.

17:52

Introducción a la Computación Numérica

มุมมอง 1.3K2 ปีที่แล้ว

Parte de la materia 95.10 Modelación Numérica / 75.12 Análisis Numérico 1 de la Facultad de Ingeniería de la Universidad de Buenos Aires. Cátedra Menéndez.