ANSYS Fluent CFD Simulation: Bullet Movement using Dynamic Mesh

Опубликовано: 28 Сентябрь 2024
на канале: MR-CFD ANSYS Fluent Training
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The hollow point boat tail bullet is primarily a rifle used for hunting big game at long range. In ANSYS Fluent Software, there are different ways to model moving objects. The dynamic mesh is a model in which the elements of the domain reform perish and get generated over time. This model is more tangible than stationary models in which the objects are fixed, and the flow moves.

In this project, a 2D HPBT ammo in a rectangular domain is designed while the bullet’s velocity is 2850 ft/s. The Dynamic Mesh model simulates the movement of the bullet in which the elements are meshing every time step.
The simulation is Transient (unsteady) in order to capture the behavior of fluid over time. The Density-based solver type is used due to the compressibility of the working flow. The speed of the bullet is 2850ft/sec which is exactly equal to the Mach number of 2.531.

That’s a good reason for us to select the ideal gas option for the density of the air to model its compressibility. The gravitational acceleration effects are ignored. Furthermore, The Dynamic Mesh module is employed.
You can obtain geometry, mesh, and comprehensive training video by purchasing this product. Click on the link below to read more or order this simulation: https://www.mr-cfd.com/shop/hpbt-ammo...