Having difficulty running a TUI command (solver.tui.solve.monitors.force.drag_coefficient())

[sid-bhargav]

When I've tried to run this code I keep getting the error, AttributeError: 'monitors' object has no attribute 'force', however I am almost certain this should work via the following source: https://www.afs.enea.it/project/neptunius/docs/fluent/html/tuilist/node11.htm.

Is there any other way I can do this? Am I doing something wrong?

Thanks

[seanpearsonuk]

Have you tried running the same directly in the classic Fluent TUI?

[sid-bhargav]

Yes I have, and it worked using the classic Fluent TUI. Is there a difference in how the command should be written for pyfluent?

[seanpearsonuk]

Yes I have, and it worked using the classic Fluent TUI. Is there a difference in how the command should be written for pyfluent?

The Python method call requires several arguments matching the TUI arguments.

[sid-bhargav]

Alright, so could you help me find which arguments I might be missing/inputting incorrectly? I am not super familiar with TUI commands, so I would not be surprised if I missed something.

Here is the code I am trying to run. If you notice any other mistakes please let me know. The TUI command I have tried to write is at the very end above the section marked "Run Simulation."

def solve(mesh_dir, version="2d", iterations=600):
    # inputs for certain fields depending on solver version
    settings = {"version": version, "iterations": iterations}

    # ==================================================
    #                  Create Solver
    # ==================================================

    solver = pyfluent.launch_fluent(
        version=settings["version"],
        precision="double",
        processor_count=2,
        mode="solver",
    )

    # verify that case file is sound
    solver.file.read(file_type="case", file_name=mesh_dir)
    solver.tui.mesh.check()

    # ==================================================
    #               Simulation Settings
    # ==================================================

    # validate ANSYS versions that may require different inputs
    twentythree_check = solver.get_fluent_version() >= "23.1.0"
    twentytwo_check = solver.get_fluent_version() == "22.2.0"

    # setting boundry conditions

    # set units to mm
    solver.tui.define.units("length", "mm")

    # viscous model/disable heat transfer
    solver.setup.models.energy.enabled = False
    solver.setup.models.viscous.model = "k-omega-standard"

    # units: m/s
    solver.setup.boundary_conditions.velocity_inlet["ns_inlet"].vmag = (
        {"option": "constant or expression", "constant": 13} if twentytwo_check else 13
    )
    print("Intlet:")
    solver.setup.boundary_conditions.velocity_inlet["ns_inlet"].print_state()

    solver.setup.boundary_conditions.pressure_outlet[
        "ns_outlet"
    ].prevent_reverse_flow = True
    print("Outlet:")
    solver.setup.boundary_conditions.pressure_outlet["ns_outlet"].print_state()

    solver.setup.boundary_conditions.wall["ns_ground"].motion_bc = "Moving Wall"
    solver.setup.boundary_conditions.wall["ns_ground"].vmag = (
        {"option": "constant or expression", "constant": 13} if twentytwo_check else 13
    )  # m/s
    solver.setup.boundary_conditions.wall["ns_ground"].component_of_wall_translation[
        0
    ] = -1
    print("Ground:")
    solver.setup.boundary_conditions.wall["ns_ground"].print_state()

    solver.setup.boundary_conditions.wall["ns_slipwall"].shear_bc = "Specified Shear"
    print("Slip Wall:")
    solver.setup.boundary_conditions.wall["ns_slipwall"].print_state()

    wing_ns = "ns_wing"
    wings = []
    wing_num = 3

    for i in range(wing_num):
        wings.append(wing_ns + str(i + 1))

    print(wings)

    for wing in wings:
        solver.setup.boundary_conditions.wall[wing].shear_bc = "No Slip"

    # TUI COMMAND: solve/monitors/force/drag-coefficient

    # TUI COMMAND: solve/monitors/force/lift-coefficient

    solver.tui.solve.monitors.force.drag_coefficient()

    # ==================================================
    #                 Run Simulation
    # ==================================================

    # initialize the flow field using hybrid initialization
    solver.tui.solve.monitors.residual.plot("yes")

    # solve for 150 iterations
    solver.solution.run_calculation.iterate.get_attr("arguments")
    if solver.get_fluent_version() >= "23.1.0":
        solver.solution.run_calculation.iterate(iter_count=settings["iterations"])
    else:
        solver.solution.run_calculation.iterate(
            number_of_iterations=settings["iterations"]
        )

    solver.exit()

[seanpearsonuk]

This page in the documentation is designed to help with the process. It takes you through all the relevant steps.