优化仿真求解性能并修复流量闭合问题（初版）

app/simulation/components/amesim/flow/pipes.py

@@ -49,6 +49,7 @@ class AmesimPnl00r(AlgebraicComponent):
 
     MODEL_TYPE = "amesim_pnl00r"
     MODEL_VERSION = "0.3.0"
+    PRESSURE_FLOW_DEPENDS_ON_STREAM = True
     PORTS = (
         PortDefinition.pneumatic("port_1", nominal_role="bidirectional"),
         PortDefinition.pneumatic("port_2", nominal_role="bidirectional"),
@@ -283,7 +284,7 @@ class AmesimPnl00r(AlgebraicComponent):
         return 0.5 * (lower + upper)
 
     def mass_flow(self, p_1: float, p_2: float) -> float:
-        if isclose(p_1, p_2, rel_tol=1.0e-7, abs_tol=1.0e-9):
+        if isclose(p_1, p_2, rel_tol=0.0, abs_tol=1.0e-8):
             return 0.0
         pressure_difference = p_1 - p_2
         upstream_pressure = max(p_1, p_2, 1.0)
@@ -910,6 +911,7 @@ class AmesimPnl0002(AmesimPnl0001):
 
     MODEL_TYPE = "amesim_pnl0002"
     MODEL_VERSION = "0.6.0"
+    PRESSURE_FLOW_DEPENDS_ON_STREAM = True
     PORTS = (
         PortDefinition.pneumatic("port_1", nominal_role="bidirectional"),
         PortDefinition.pneumatic("port_2", nominal_role="bidirectional"),
@@ -1396,7 +1398,7 @@ class AmesimPnl0003(DynamicComponent):
         port_1 = self._properties(self.state_1)
         port_2 = self._properties(self.state_2)
         pressure_difference = port_1.p - port_2.p
-        if isclose(port_1.p, port_2.p, rel_tol=1.0e-7, abs_tol=1.0e-9):
+        if isclose(port_1.p, port_2.p, rel_tol=0.0, abs_tol=1.0e-8):
             return 0.0
         upstream = port_1 if pressure_difference > 0.0 else port_2
         magnitude = self._mass_flow_for_pressure_drop(