From 08ebebac8798eb8f06bd8d1fb442f341cfd0ce70 Mon Sep 17 00:00:00 2001
From: MARSOLLIER Felix <felix-externe.marsollier@edvance.fr>
Date: Wed, 24 Feb 2021 17:18:59 +0100
Subject: [PATCH] - Increase the pressure loss coefficient to reduce the
stiffness of the problem - Redeclaration of the media used in the pump
component
---
.../Machines/test_PrescribedPump.mo | 27 ++++++++++---------
1 file changed, 15 insertions(+), 12 deletions(-)
diff --git a/FluidDynamics/Components/Machines/test_PrescribedPump.mo b/FluidDynamics/Components/Machines/test_PrescribedPump.mo
index 0d4e3f7..6785bb0 100644
--- a/FluidDynamics/Components/Machines/test_PrescribedPump.mo
+++ b/FluidDynamics/Components/Machines/test_PrescribedPump.mo
@@ -2,26 +2,29 @@ within TAeZoSysPro_testsuite.FluidDynamics.Components.Machines;
model test_PrescribedPump
TAeZoSysPro.FluidDynamics.Components.Machines.PrescribedPump prescribedPump(
- redeclare function flowCharacteristic = TAeZoSysPro.FluidDynamics.Components.Machines.BaseClasses.PumpCharacteristics.polynomialFlow(
- V_flow_nominal = linspace(0.1, 0.9, 10),
- head_nominal = {24.78, 17.36, 20.30, 15.58, 17.43, 12.66, 13.18, 8.61, 7.53, 3.42}), N_nominal = 1500,
+ redeclare package Medium = Modelica.Media.Water.StandardWater,
+ redeclare function flowCharacteristic = TAeZoSysPro.FluidDynamics.Components.Machines.BaseClasses.PumpCharacteristics.polynomialFlow(
+ V_flow_nominal = linspace(0.1, 0.9, 10),
+ head_nominal={24.78, 17.36, 20.30, 15.58, 17.43, 12.66, 13.18, 8.61, 7.53, 3.42},
+ OrderPolyFitting=2),
+ N_nominal = 1500,
V_flow(start = 0.5),checkValve = false, d_nominal = 1000, use_N_in = false) annotation(
- Placement(visible = true, transformation(origin = {-28, 3.55271e-15}, extent = {{-20, -20}, {20, 20}}, rotation = 0)));
+ Placement(visible = true, transformation(origin = {-28, -60}, extent = {{-20, -20}, {20, 20}}, rotation = 0)));
Modelica.Fluid.Sources.FixedBoundary boundary(redeclare package Medium = Modelica.Media.Water.StandardWater, nPorts = 1, p = 101325) annotation(
Placement(visible = true, transformation(origin = {-80, -1.9984e-15}, extent = {{-20, -20}, {20, 20}}, rotation = 0)));
Modelica.Fluid.Sources.FixedBoundary boundary1(redeclare package Medium = Modelica.Media.Water.StandardWater, nPorts = 1, p = 101325) annotation(
Placement(visible = true, transformation(origin = {80, 1}, extent = {{20, -19}, {-20, 19}}, rotation = 0)));
- Modelica.Blocks.Sources.Ramp ramp(duration = 100, height = 100, offset = 1500) annotation(
+ Modelica.Blocks.Sources.Ramp ramp(duration = 100, height = 100, offset = 1500) annotation(
Placement(visible = true, transformation(origin = {-50, 70}, extent = {{-10, -10}, {10, 10}}, rotation = 0)));
- TAeZoSysPro.FluidDynamics.Components.Pipes.StaticPipe pipe(redeclare package Medium = Modelica.Media.Water.StandardWater, A = 0.1) annotation(
+ TAeZoSysPro.FluidDynamics.Components.Pipes.StaticPipe pipe(redeclare package Medium = Modelica.Media.Water.StandardWater, A = 0.1, ksi = 10) annotation(
Placement(visible = true, transformation(origin = {26, 3.55271e-15}, extent = {{-20, -20}, {20, 20}}, rotation = 0)));
equation
- connect(ramp.y, prescribedPump.N_in) annotation(
- Line(points = {{-38, 70}, {-28, 70}, {-28, 20}}, color = {0, 0, 127}));
- connect(boundary.ports[1], prescribedPump.port_a) annotation(
- Line(points = {{-60, 0}, {-48, 0}, {-48, 0}, {-48, 0}}, color = {0, 127, 255}));
- connect(prescribedPump.port_b, pipe.port_a) annotation(
- Line(points = {{-8, 0}, {6, 0}, {6, 0}, {6, 0}}, color = {0, 127, 255}));
connect(pipe.port_b, boundary1.ports[1]) annotation(
Line(points = {{46, 0}, {60, 0}, {60, 2}, {60, 2}}, color = {0, 127, 255}));
+ connect(boundary.ports[1], prescribedPump.port_a) annotation(
+ Line(points = {{-60, 0}, {-48, 0}, {-48, -60}, {-48, -60}}, color = {0, 127, 255}));
+ connect(prescribedPump.port_b, pipe.port_a) annotation(
+ Line(points = {{-8, -60}, {-8, -60}, {-8, 0}, {6, 0}, {6, 0}}, color = {0, 127, 255}));
+ annotation(
+ experiment(StartTime = 0, StopTime = 1, Tolerance = 1e-06, Interval = 0.002));
end test_PrescribedPump;
--
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