优化仿真求解性能并修复流量闭合问题（初版）

app/simulation/components/amesim/junctions/nodes.py

@@ -18,6 +18,7 @@ class _AmesimPneumaticNode(AlgebraicComponent):
     balance, matching the AMESim dh2 causality.
     """
 
+    PRESSURE_FLOW_DEPENDS_ON_STREAM = False
     REFERENCE_PORT = "port_2"
 
     def __init__(self, name: str) -> None:
@@ -122,6 +123,7 @@ class AmesimPn3Node2(_AmesimPneumaticNode):
 
     MODEL_TYPE = "amesim_pn3node2"
     MODEL_VERSION = "0.3.0"
+    PRESSURE_FLOW_DEPENDS_ON_STREAM = False
     PORTS = (
         PortDefinition.pneumatic("port_1", nominal_role="bidirectional"),
         PortDefinition.pneumatic("port_2", nominal_role="bidirectional"),
@@ -158,6 +160,7 @@ class AmesimP4Node2(_AmesimPneumaticNode):
 
     MODEL_TYPE = "amesim_p4node2"
     MODEL_VERSION = "0.3.0"
+    PRESSURE_FLOW_DEPENDS_ON_STREAM = False
     PORTS = (
         PortDefinition.pneumatic("port_1", nominal_role="bidirectional"),
         PortDefinition.pneumatic("port_2", nominal_role="bidirectional"),