79 lines
2.8 KiB
C#
79 lines
2.8 KiB
C#
using System.Collections.Generic;
|
||
using FluidSim.Components;
|
||
using FluidSim.Interfaces;
|
||
|
||
namespace FluidSim.Core
|
||
{
|
||
public class Solver
|
||
{
|
||
private readonly List<Volume0D> _volumes = new();
|
||
private readonly List<Pipe1D> _pipes = new();
|
||
private readonly List<Connection> _connections = new();
|
||
|
||
public void AddVolume(Volume0D v) => _volumes.Add(v);
|
||
public void AddPipe(Pipe1D p) => _pipes.Add(p);
|
||
public void AddConnection(Connection c) => _connections.Add(c);
|
||
|
||
public void Step()
|
||
{
|
||
// 1. Volumes publish state to their ports
|
||
foreach (var v in _volumes)
|
||
v.PushStateToPort();
|
||
|
||
// 2. Set volume states as boundary conditions on pipes
|
||
foreach (var conn in _connections)
|
||
{
|
||
if (IsPipePort(conn.PortA) && IsVolumePort(conn.PortB))
|
||
SetVolumeBC(conn.PortA, conn.PortB);
|
||
else if (IsVolumePort(conn.PortA) && IsPipePort(conn.PortB))
|
||
SetVolumeBC(conn.PortB, conn.PortA);
|
||
}
|
||
|
||
// 3. Run pipe simulations
|
||
foreach (var p in _pipes)
|
||
p.Simulate();
|
||
|
||
// 4. Transfer pipe‑port flows to volume ports
|
||
foreach (var conn in _connections)
|
||
{
|
||
if (IsPipePort(conn.PortA) && IsVolumePort(conn.PortB))
|
||
TransferPipeToVolume(conn.PortA, conn.PortB);
|
||
else if (IsVolumePort(conn.PortA) && IsPipePort(conn.PortB))
|
||
TransferPipeToVolume(conn.PortB, conn.PortA);
|
||
}
|
||
|
||
// 5. Integrate volumes
|
||
foreach (var v in _volumes)
|
||
v.Integrate();
|
||
}
|
||
|
||
bool IsVolumePort(Port p) => _volumes.Exists(v => v.Port == p);
|
||
bool IsPipePort(Port p) => _pipes.Exists(pp => pp.PortA == p || pp.PortB == p);
|
||
Pipe1D GetPipe(Port p) => _pipes.Find(pp => pp.PortA == p || pp.PortB == p);
|
||
|
||
void SetVolumeBC(Port pipePort, Port volPort)
|
||
{
|
||
Pipe1D pipe = GetPipe(pipePort);
|
||
if (pipe == null) return;
|
||
bool isLeft = pipe.PortA == pipePort;
|
||
|
||
if (isLeft)
|
||
pipe.SetLeftVolumeState(volPort.Density, volPort.Pressure);
|
||
else
|
||
pipe.SetRightVolumeState(volPort.Density, volPort.Pressure);
|
||
}
|
||
|
||
void TransferPipeToVolume(Port pipePort, Port volPort)
|
||
{
|
||
double mdot = pipePort.MassFlowRate;
|
||
volPort.MassFlowRate = -mdot;
|
||
|
||
if (mdot < 0) // pipe → volume
|
||
{
|
||
// pipePort.SpecificEnthalpy is already total (h + ½u²)
|
||
volPort.SpecificEnthalpy = pipePort.SpecificEnthalpy;
|
||
}
|
||
// else: volume → pipe, volume’s own static enthalpy is used (already set)
|
||
}
|
||
}
|
||
} |