def test_fourth_part(self):
number_re = 10**7
relative_roughness = 0.02
d_m = 159 / 1000
epsilon = relative_roughness * d_m
friction = friction_Bratland.Friction()
self.assertAlmostEqual(friction.calc_f(number_re, epsilon, d_m), 0.04865207639535838,
delta=0.00000001)
def test_third_part(self):
number_re = 15000
relative_roughness = 0.002
d_m = 159 / 1000
epsilon = relative_roughness * d_m
friction = friction_Bratland.Friction()
self.assertAlmostEqual(friction.calc_f(number_re, epsilon, d_m), 0.037014744989689666,
delta=0.00000001)
def test_first_part(self):
number_re = 2000
relative_roughness = 0.04
d_m = 144 / 1000
epsilon = relative_roughness * d_m
friction = friction_Bratland.Friction()
self.assertAlmostEqual(friction.calc_f(number_re, epsilon, d_m), 0.032,
delta=0.00000001)
def test_second_part(self):
number_re = 2500
relative_roughness = 0.03
d_m = 180 / 1000
epsilon = relative_roughness * d_m
friction = friction_Bratland.Friction()
self.assertAlmostEqual(friction.calc_f(number_re, epsilon, d_m), 0.030869565217391304,
delta=0.00000001)
def __init__(self, epsilon_friction_m=18.288 * 10**(-6), angle_grad=90):
"""
Инизиализация гидравлической корреляции
:param epsilon_friction_m: шероховатость трубы, м
:param angle_grad: угол наклона трубы от горизонтали, град
"""
self.epsilon_friction_m = epsilon_friction_m
self.angle_grad = angle_grad # угол наклона ствола скважины от горизонтали
self.angle_rad = self.angle_grad * math.pi / 180
self.d_m = None
self.p_pa = None
self.t_c = None
self.vsl_msec = None # приведенная скорость жидкости (3.10)
self.vsg_msec = None # приведенная скорость газа (3.11)
self.vm_msec = None # приведенная (общая) скорость смеси (3.12)
self.liquid_content = None # объемное содержание жидкости при отсутствии проскальзывания (3.8)
self.rho_liq_kgm3 = None
self.rho_gas_kgm3 = None
self.mun_pas = None
self.rhon_kgm3 = None
self.sigma_liq_Nm = None
self.val_number_Fr = None
self.flow_regime = None
self.liquid_content_with_zero_angle = None
self.correction_factor_betta = None
self.angle_correction_factor = None
self.liquid_content_with_angle = None
self.number_Re = None
self.friction_coefficient = None
self.y = None
self.s = None
self.result_friction = None
self.Ek = None
self.rhos_kgm3 = None
self.liquid_content_with_Pains_cor = None
self.result_grad_pam = None
# импорт модуля для расчета коэффициента трения
self.module_friction = fr.Friction()
self.friction_grad_pam = None
self.density_grad_pam = None
self.friction_grad_part_percent = None
self.density_grad_part_percent = None