Georg_Brantegger/Python-DT_Slot_3
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working on a fix for steady state Ausgleichsbecken

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Brantegger Georg
2022-07-27 16:02:39 +02:00
parent 176fa556ff
commit 03ff67e0ad
4 changed files with 121 additions and 46 deletions
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24
Druckrohrleitung/Druckrohrleitung_class_file.py
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@@ -88,17 +88,17 @@ class Druckrohrleitung_class:
# the velocity at the reservoir will be calculated using the backward characteristic
# constants for a cleaner formula
rho = self.density
c = self.c
f_D = self.f_D
dt = self.dt
D = self.dia
g = self.g
alpha = self.angle
p_old_tur = self.p_old[-2] # @ second to last node (the one before the turbine)
v_old_tur = self.v_old[-2] # @ second to last node (the one before the turbine)
p_old_res = self.p_old[1] # @ second node (the one after the reservoir)
v_old_res = self.v_old[1] # @ second node (the one after the reservoir)
rho = self.density
c = self.c
f_D = self.f_D
dt = self.dt
D = self.dia
g = self.g
alpha = self.angle
p_old_tur = self.p_old[-2] # @ second to last node (the one before the turbine)
v_old_tur = self.v_old[-2] # @ second to last node (the one before the turbine)
p_old_res = self.p_old[1] # @ second node (the one after the reservoir)
v_old_res = self.v_old[1] # @ second node (the one after the reservoir)
# set the boundary conditions derived from reservoir and turbine
v_boundary_tur = v_turbine # at new timestep
p_boundary_res = p_reservoir # at new timestep
@@ -117,7 +117,7 @@ class Druckrohrleitung_class:
# the flow velocity is given by the constant flow through the pipe
ss_v0 = np.full(self.n_seg+1,ss_flux/self.A)
# the static pressure is given by the hydrostatic pressure, corrected for friction losses and dynamic pressure
ss_pressure = (self.density*self.g*(ss_level_reservoir+h_vec)-ss_v0**2*self.density/2)-(self.f_D*pl_vec/self.dia*self.density/2*ss_v0**2)
ss_pressure = self.density*self.g*(ss_level_reservoir+h_vec)-ss_v0**2*self.density/2-(self.f_D*pl_vec/self.dia*self.density/2*ss_v0**2)
self.set_initial_flow_velocity(ss_v0)
self.set_initial_pressure(ss_pressure)