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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,121 @@ | ||
| #!/usr/bin/env python3 | ||
| # This case file demonstrates the Laplace pressure jump of a water droplet in air. The laplace pressure jump | ||
| # in 2D is given by delta = sigma / r where delta is the pressure jump, sigma is the surface tension coefficient, | ||
| # and r is the radius of the droplet. The results of this simulation agree with theory to well within 1% | ||
| # relative error. | ||
|
|
||
| import math | ||
| import json | ||
|
|
||
| l = 1 | ||
| eps = 1e-6 | ||
|
|
||
| # Numerical setup | ||
| r0 = l/4 | ||
| x0 = -l | ||
| x1 = l | ||
| y0 = -l | ||
| y1 = l | ||
| z0 = -l | ||
| z1 = l | ||
|
|
||
| Nx = 200 | ||
| Ny = Nx | ||
| Nz = Nx | ||
|
|
||
| dt = 1e-4 | ||
|
|
||
| # Configuration case dictionary | ||
| data = { | ||
| # Logistics | ||
| "run_time_info": "T", | ||
| # Computational Domain | ||
| "x_domain%beg": x0, | ||
| "x_domain%end": x1, | ||
| "y_domain%beg": y0, | ||
| "y_domain%end": y1, | ||
| "z_domain%beg": z0, | ||
| "z_domain%end": z1, | ||
| "m": Nx, | ||
| "n": Ny, | ||
| "p": Nz, | ||
| "cyl_coord": "F", | ||
| "dt": dt, | ||
| "t_step_start": 0, | ||
| "t_step_stop": 5000, | ||
| "t_step_save": 50, | ||
| # Simulation Algorithm | ||
| "model_eqns": 2, | ||
| "alt_soundspeed": "F", | ||
| "mixture_err": "T", | ||
| "mpp_lim": "F", | ||
| "time_stepper": 3, | ||
| "weno_order": 5, | ||
| "avg_state": 2, | ||
| "weno_eps": 1e-16, | ||
| "mapped_weno": "T", | ||
| "null_weights": "F", | ||
| "mp_weno": "T", | ||
| "weno_Re_flux": "T", | ||
| "riemann_solver": 2, | ||
| "wave_speeds": 1, | ||
| "bc_x%beg": -3, | ||
| "bc_x%end": -3, | ||
| "bc_y%beg": -3, | ||
| "bc_y%end": -3, | ||
| "bc_z%beg": -3, | ||
| "bc_z%end": -3, | ||
| "num_patches": 2, | ||
| "num_fluids": 2, | ||
| "igr": "T", | ||
| "alf_factor": 10, | ||
| "viscous": "T", | ||
| # Database Structure Parameters | ||
| "format": 1, | ||
| "precision": 2, | ||
| "prim_vars_wrt": "T", | ||
| "parallel_io": "T", | ||
| # Fluid Parameters (Gas) | ||
| "fluid_pp(1)%gamma": 1.0e00 / (1.4e00 - 1.0e00), | ||
| "fluid_pp(1)%pi_inf": 0.0e00, | ||
| "fluid_pp(1)%Re(1)": 1e5, | ||
| "fluid_pp(2)%gamma": 1.0e00 / (1.4e00 - 1.0e00), | ||
| "fluid_pp(2)%pi_inf": 0.0e00, | ||
| "fluid_pp(2)%Re(1)": 1e5, | ||
| # Ambient pressure | ||
| "patch_icpp(1)%geometry": 9, | ||
| "patch_icpp(1)%x_centroid": 0, | ||
| "patch_icpp(1)%y_centroid": 0, | ||
| "patch_icpp(1)%z_centroid": 0, | ||
| "patch_icpp(1)%length_x": 2, | ||
| "patch_icpp(1)%length_y": 2, | ||
| "patch_icpp(1)%length_z": 2, | ||
| "patch_icpp(1)%vel(1)": 0.0, | ||
| "patch_icpp(1)%vel(2)": 0.0, | ||
| "patch_icpp(1)%vel(3)": 0.0, | ||
| "patch_icpp(1)%pres": 1, | ||
| "patch_icpp(1)%alpha_rho(1)": 1 - eps, | ||
| "patch_icpp(1)%alpha(1)": 1 - eps, | ||
| "patch_icpp(1)%alpha_rho(2)": eps, | ||
| "patch_icpp(1)%alpha(2)": eps, | ||
| # High pressure | ||
| "patch_icpp(2)%alter_patch(1)": "T", | ||
| "patch_icpp(2)%smoothen": "T", | ||
| "patch_icpp(2)%smooth_patch_id": 1, | ||
| "patch_icpp(2)%smooth_coeff": 0.1, | ||
| "patch_icpp(2)%geometry": 8, | ||
| "patch_icpp(2)%x_centroid": 0, | ||
| "patch_icpp(2)%y_centroid": 0, | ||
| "patch_icpp(2)%z_centroid": 0, | ||
| "patch_icpp(2)%radius": r0, | ||
| "patch_icpp(2)%vel(1)": 0.0, | ||
| "patch_icpp(2)%vel(2)": 0.0, | ||
| "patch_icpp(2)%vel(3)": 0.0, | ||
| "patch_icpp(2)%pres": 9.518, | ||
| "patch_icpp(2)%alpha_rho(1)": eps, | ||
| "patch_icpp(2)%alpha(1)": eps, | ||
| "patch_icpp(2)%alpha_rho(2)": (1 - eps)*5, | ||
| "patch_icpp(2)%alpha(2)": 1 - eps, | ||
| } | ||
|
|
||
| print(json.dumps(data)) |
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