From 57571ce9553ba84be78df541f2e5c8e4f1e4d590 Mon Sep 17 00:00:00 2001
From: Michael Wetter <mwetter@lbl.gov>
Date: Fri, 22 Sep 2023 12:24:19 -0700
Subject: [PATCH] Updated documentation

---
 IBPSA/Fluid/Geothermal/Aquifer/MultiWell.mo | 36 +++++++++++++--------
 1 file changed, 22 insertions(+), 14 deletions(-)

diff --git a/IBPSA/Fluid/Geothermal/Aquifer/MultiWell.mo b/IBPSA/Fluid/Geothermal/Aquifer/MultiWell.mo
index 12c0d38976..c8c132a57b 100644
--- a/IBPSA/Fluid/Geothermal/Aquifer/MultiWell.mo
+++ b/IBPSA/Fluid/Geothermal/Aquifer/MultiWell.mo
@@ -172,13 +172,13 @@ model MultiWell "Model of a single well for aquifer thermal energy storage"
     "Pressure drop of cold aquifer" annotation (Placement(transformation(
         extent={{10,-10},{-10,10}},
         rotation=90,
-        origin={-102,-40})));
+        origin={-100,-40})));
   Sensors.RelativePressure dpWelCol(
     redeclare package Medium = Medium)
     "Pressure drop of cold well" annotation (Placement(transformation(
         extent={{10,-10},{-10,10}},
         rotation=90,
-        origin={-60,70})));
+        origin={-100,70})));
 protected
   parameter Modelica.Units.SI.Radius r[nVol + 1](each fixed=false)
     "Radius to the boundary of the i-th domain";
@@ -371,22 +371,22 @@ equation
   connect(pumHot.P, addPum.u2) annotation (Line(points={{111,11},{111,20},{20,20},
           {20,34},{38,34}},                                                                          color={0,0,127}));
   connect(gaiPum.y, PTot) annotation (Line(points={{101,40},{190,40}},                color={0,0,127}));
-  connect(dpAquCol.p_rel, resAquHot.dp_in) annotation (Line(points={{-93,-40},{100,
-          -40},{100,-34},{112,-34}},                  color={0,0,127}));
-  connect(dpAquCol.port_b, resAquCol.port_a) annotation (Line(points={{-102,-50},
-          {-102,-56},{-120,-56},{-120,-48}},
+  connect(dpAquCol.p_rel, resAquHot.dp_in) annotation (Line(points={{-91,-40},{
+          100,-40},{100,-34},{112,-34}},              color={0,0,127}));
+  connect(dpAquCol.port_b, resAquCol.port_a) annotation (Line(points={{-100,-50},
+          {-100,-60},{-120,-60},{-120,-48}},
                                           color={0,127,255}));
-  connect(dpAquCol.port_a, resAquCol.port_b) annotation (Line(points={{-102,-30},
-          {-102,-24},{-120,-24},{-120,-28}},
+  connect(dpAquCol.port_a, resAquCol.port_b) annotation (Line(points={{-100,-30},
+          {-100,-20},{-120,-20},{-120,-28}},
                                           color={0,127,255}));
-  connect(dpWelCol.port_a, resWelCol.port_b) annotation (Line(points={{-60,80},{
-          -60,86},{-120,86},{-120,80}},
+  connect(dpWelCol.port_a, resWelCol.port_b) annotation (Line(points={{-100,80},
+          {-100,90},{-120,90},{-120,80}},
                                       color={0,127,255}));
-  connect(dpWelCol.port_b, resWelCol.port_a) annotation (Line(points={{-60,60},{
-          -60,56},{-120,56},{-120,60}},
+  connect(dpWelCol.port_b, resWelCol.port_a) annotation (Line(points={{-100,60},
+          {-100,52},{-120,52},{-120,60}},
                                       color={0,127,255}));
-  connect(dpWelCol.p_rel, resWelHot.dp_in) annotation (Line(points={{-51,70},{100,
-          70},{100,76},{112,76}},
+  connect(dpWelCol.p_rel, resWelHot.dp_in) annotation (Line(points={{-91,70},{
+          100,70},{100,76},{112,76}},
                                 color={0,0,127}));
   annotation (Icon(coordinateSystem(preserveAspectRatio=false,
     extent={{-100,-100},
@@ -546,6 +546,14 @@ The temperature values in the warm and cold aquifers can be accessed using
 These temperatures correspond to the temperatures of each thermal capacitance
 in the discretized domain. The location of the thermal capacitance is expressed by <code>rVol</code>.
 </p>
+<h4>Implementation</h4>
+<p>
+The model computes the flow resistance of the cold well and the cold acquifer.
+Because of symmetry, the warm side has the same flow resistances.
+To reduce the number of equations in the model, the flow resistance of the warm
+side is set to the same flow resistance as on the cold side, but with the
+sign reversed.
+</p>
 </html>", revisions="<html>
 <ul>
 <li>