SimScale simulation projects by fsite | Page 1

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This project simulates instantaneous turbulent wake of a cylinder body via LES method.

This projects aims to showcase the function of a golf ball's dimples, compared to a same ball of smooth surface.

This project involves meshing externally a Boeing 777-200 LR Aircraft, and then simulating its' operation on flight facing an airflow with an axial velocity of 50 m/s.  It is one of the longest-range commercial airliners, with an exterior length and wingspan reaching 63.70 and 64.80 meters respectively.  For this case a model with removed engines was chosen in order to assist convergence and meshing. Also a Symmetry plane was added midst the Part, and half the part was used for meshing and simulation for simplification.  A steady state compressible flow simulation is executed to visualize the air flow around the bodywork and wings of the aircraft, as well as the pressure distribution while on flight.

This project involves meshing internally a Ball Valve, and then simulating its' operation when water flows through it. A ball valve is a structure that is placed between two pipelines, connecting them through its' hollow interior by utilizing two diametrically placed holes. For this case, the floating ball has a hollow cylinder through its center, with a diameter same as the inner one of the pipelines. The Cylinder is not parallel to the pipes, and instead it is placed diagonally. A steady state incompressible flow simulation is executed to visualize the flow and its' re-circulation, as well as the critical areas of the pressure drop.

Compressible external flow around a Boeing 737 aircraft on flight.

The purpose of this project is to simulate and evaluate the performance of different pump impeller designs.

This project  involves meshing a single-Shaft Turbofan Engine, and then simulating its' operation when facing an axial airflow of 150 m/s, while rotating with a velocity of 940 rad/sec (9000 rpm) . A Fan is used to bypass a large amount of air in the inside of the engine. For this case the typical Compressor, Combustion chamber and Turbine Stator were omitted, and only the Fan, Shaft, Shell and Turbine rotor were meshed and examined, in order to restrain the meshing requirements for complex, time consuming meshing and simulation.  A steady state incompressible flow simulation is executed to visualize the air flow through the components of the Turbofan, as well as the pressure and U magnitude distribution on the blades of the Fan and Turbine.

Link to  the extended compressible study (bigger domain included) : https://www.simscale.com/projects/fsite/turbofan_engine_extended_study/

This project involves meshing externally a platform of some modern design buildings, and then visualizing the behavior of the air that flows through it by simulating it, which is  a common practice nowadays, performed in urban developing, architectural design, environmental planning applications and many more. For the meshing of the maquette configuration of buildings that form this urban landscape, the Hex-dominant parametric (only CFD) and 16 processors were used. A steady state incompressible flow simulation, using the k-omega Spalart Allmaras turbulence model,  is executed, in order to visualize the air flow  as well as the critical areas of the re-circulation. Results from the simulation, as well as flow visualization techniques are also provided from the SimScale and Paraview platforms.

Following the new 2021 F1 rules, this simulation showcases why is it really important to focus on diminishing the amount of dirty air that the following car is receiving when it comes to wheel-to-wheel battles.

This project  involves meshing externally an F1 type Front Wing, and then simulating its' operation when facing a horizontal airflow of 20 m/s. Nowadays it is very common to witness F1 type cars using this type of leaf-like wings, called cascades, acting to generate vortices behind them that spiral upwards and outwards in channels controlled to the millimeter and shaped around the front wheels, towards the underfloor, through and around radiator inlets and between suspension components, and lately , it has been introduced by some Formula Student teams as well.  For this case a Symmetry plane was added midst the Part, and half the part was used for meshing and simulation for simplification. A steady state incompressible flow simulation is executed to visualize the air flow around the bodywork and wings of the part, as well as the pressure distribution, the outwash effect of the cascade and endplate, as well as the vortices of the footplate.

As a follow-up case for the  TurboFan engine case: https://www.simscale.com/projects/fsite/new_jet/, this project extends the study by using a compressible flow simulation.  It involves meshing a single-Shaft Turbofan Engine, and then simulating its' operation when facing an axial airflow of 150 m/s, while rotating with a velocity of 940 rad/sec (9000 rpm) . A Fan is used to bypass a large amount of air in the inside of the engine. For this case the typical Compressor, Combustion chamber and Turbine Stator were omitted, and only the Fan, Shaft, Shell and Turbine rotor were meshed and examined, in order to restrain the meshing requirements for complex, time consuming meshing and simulation. A steady state  flow simulation is executed to visualize the air flow through the components of the Turbofan, as well as the pressure and U magnitude distribution on the blades of the Fan and Turbine.

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