{"id":303849,"date":"2023-08-29T11:49:09","date_gmt":"2023-08-29T11:49:09","guid":{"rendered":"\/forum\/forums\/topic\/wave-rotor-modeling-in-ansys-fluent-bc-definition-and-2d-feasibility\/"},"modified":"2023-08-30T08:35:58","modified_gmt":"2023-08-30T08:35:58","slug":"wave-rotor-modeling-in-ansys-fluent-bc-definition-and-2d-feasibility","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/wave-rotor-modeling-in-ansys-fluent-bc-definition-and-2d-feasibility\/","title":{"rendered":"Wave Rotor Modeling in ANSYS Fluent: BC definition and 2D Feasibility"},"content":{"rendered":"

Hi everyone,<\/p>\n

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I am currently engaged in a university project where my focus has been on developing a wave rotor model within ANSYS Fluent. This model encompasses a rotor made up of an array of channels, flanked by static ports on both sides. To optimize computational efficiency, I opted to model just one radial cell, ensuring symmetry at the top and bottom through boundary conditions. This choice was motivated by the time-intensive nature of running numerous cases, and I am actively seeking ways to streamline this process.<\/p>\n

In the described model, the radial dimension remains constant, resulting in a 2D scenario in cylindrical coordinates. Consequently, I projected the geometry onto a 2D Cartesian plane for use in Fluent. I then endeavored to configure a purely 2D planar model within Fluent.<\/p>\n

The figure attached represents the domain I am trying to model.<\/p>\n

 <\/p>\n<\/div>\n<\/div>\n<\/div>\n

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 the computational domain is divided into three fluid segments: two stators on the left and right-hand sides, and the rotor composed of channels. Each domain exhibits a periodicity of 1, reflecting their projection across a complete revolution. To establish connectivity between the rotor and stator domains, interfaces with periodic repetition are defined. Furthermore, periodic matching is applied at the top and bottom boundaries to connect the channels on both ends and to link the ports.<\/p>\n

For the rotating channel domain, a moving mesh approach is employed to replicate tangential velocity rotation (in Y direction). The inlet and outlet boundaries are designated as pressure inlet and outlet, maintaining a constant pressure.<\/p>\n

However, I’m currently facing an issue where the rotor domain no longer seems to be connected to the ports. This prompts my questions: Is this approach feasible within Fluent? How should I properly set up the boundary conditions?<\/p>\n

I’d also like to mention that I came across a paper ( https:\/\/www.sciencedirect.com\/science\/article\/pii\/S0196890422013565<\/a>), which presents a concept closely aligned with my objectives. However, the paper employs ANSYS CFX for CFD simulations. Based on my understanding, CFX lacks a dedicated 2D solver, which seems to result in an element being generated in the direction of the normal vector, akin to my initial model (though I acknowledge I might be mistaken in this comparison).<\/p>\n

Thanks in advance for your help and your advice,<\/p>\n

Regards,<\/p>\n

Ghislain<\/p>\n","protected":false},"template":"","class_list":["post-303849","topic","type-topic","status-closed","hentry"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t