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# -*- coding: utf-8 -*- | ||
import numpy as np | ||
from matplotlib import pyplot as plt | ||
import matplotlib.gridspec as gridspec | ||
from anaflow import ext_grf, ext_grf_steady | ||
from anaflow.tools import specialrange_cut, annular_hmean | ||
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def step_f(rad, R_part, K_part): | ||
"""Step Transmissivity callable.""" | ||
return np.piecewise(rad, [np.logical_and(r1 <= rad, rad < r2) for r1, r2 in zip(R_part[:-1], R_part[1:])], K_part) | ||
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def cond(rad, K_far, K_well, len_scale): | ||
"""Conductivity with linear increase from K_well to K_far.""" | ||
rad = np.abs(rad, dtype=float) | ||
if K_far > K_well: | ||
return np.minimum(K_well + rad / len_scale * (K_far - K_well), K_far) | ||
return np.maximum(K_well + rad / len_scale * (K_far - K_well), K_far) | ||
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time_labels = ["10 s", "100 s", "1000 s"] | ||
time = [10, 100, 1000] | ||
rad = np.geomspace(0.1, 6) | ||
S = 1e-4 | ||
K_well = 1e-5 | ||
K_far = 1e-4 | ||
len_scale = 5.0 | ||
rate = -1e-4 | ||
dim = 1.5 | ||
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cut_off = len_scale | ||
parts = 30 | ||
r_well = 0.0 | ||
r_bound = 50.0 | ||
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# calculate a disk-distribution of "trans" by calculating harmonic means | ||
R_part = specialrange_cut(r_well, r_bound, parts, cut_off) | ||
K_part = annular_hmean(cond, R_part, ann_dim=dim, K_far=K_far, K_well=K_well, len_scale=len_scale) | ||
S_part = np.full_like(K_part, S) | ||
# calculate transient and steady heads | ||
head1 = ext_grf(time, rad, S_part, K_part, R_part, dim=dim, rate=rate) | ||
head2 = ext_grf_steady(rad, r_bound, cond, dim=dim, rate=-1e-4, K_far=K_far, K_well=K_well, len_scale=len_scale) | ||
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# plotting | ||
gs = gridspec.GridSpec(2, 1, height_ratios=[1, 3]) | ||
ax1 = plt.subplot(gs[0]) | ||
ax2 = plt.subplot(gs[1], sharex=ax1) | ||
time_ticks=[] | ||
for i, step in enumerate(time): | ||
label = "Transient" if i == 0 else None | ||
ax2.plot(rad, head1[i], label=label, color="C"+str(i)) | ||
time_ticks.append(head1[i][-1]) | ||
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ax2.plot(rad, head2, label="Steady", color="k", linestyle=":") | ||
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rad_lin = np.linspace(rad[0], rad[-1], 1000) | ||
ax1.plot(rad_lin, step_f(rad_lin, R_part, K_part), label="step Conductivity") | ||
ax1.plot(rad_lin, cond(rad_lin, K_far, K_well, len_scale), label="Conductivity") | ||
ax1.set_yticks([K_well, K_far]) | ||
ax1.set_xticklabels([]) | ||
ax1.set_ylabel(r"$K$ in $[\frac{m}{s}]$") | ||
ax1.legend() | ||
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ax2.set_xlabel("r in [m]") | ||
ax2.set_ylabel("h in [m]") | ||
ax2.legend() | ||
ylim = ax2.get_ylim() | ||
ax2.set_xlim([0, rad[-1]]) | ||
ax3 = ax2.twinx() | ||
ax3.set_yticks(time_ticks) | ||
ax3.set_yticklabels(time_labels) | ||
ax3.set_ylim(ylim) | ||
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plt.tight_layout() | ||
plt.show() |