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General testing

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grillkol
2026-05-05 10:32:30 +02:00
parent ff4c4aef23
commit d963032e74
11 changed files with 794 additions and 448 deletions
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21
Scenarios/HelmholtzResonatorScenario.cs
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@@ -1,6 +1,5 @@
using System;
using FluidSim.Components;
using FluidSim.Interfaces;
using FluidSim.Utils;
using SFML.Graphics;
using SFML.System;
@@ -12,7 +11,7 @@ namespace FluidSim.Core
private Solver solver;
private Volume0D cavity;
private Pipe1D neck;
private Connection coupling;
private PipeVolumeConnection coupling;
private int stepCount;
private double time;
private double dt;
@@ -38,12 +37,8 @@ namespace FluidSim.Core
neck = new Pipe1D(neckLength, neckArea, sampleRate, forcedCellCount: 40);
neck.SetUniformState(1.225, 0.0, ambientPressure);
coupling = new Connection(neck.PortA, cavity.Port)
{
Area = neckArea,
DischargeCoefficient = 0.62,
Gamma = 1.4
};
// Create the coupling between cavity and left end of the neck (PortA)
coupling = new PipeVolumeConnection(cavity, neck, isPipeLeftEnd: true, orificeArea: neckArea);
solver = new Solver();
solver.SetTimeStep(dt);
@@ -51,8 +46,8 @@ namespace FluidSim.Core
solver.AddPipe(neck);
solver.AddConnection(coupling);
// Port A (left) = volume coupling, Port B (right) = open end
solver.SetPipeBoundary(neck, isA: true, BoundaryType.VolumeCoupling);
// Left boundary (PortA) is volume‑coupled via ghost cell, right boundary (PortB) is open end
solver.SetPipeBoundary(neck, isA: true, BoundaryType.GhostCell);
solver.SetPipeBoundary(neck, isA: false, BoundaryType.OpenEnd, ambientPressure);
}
@@ -68,11 +63,11 @@ namespace FluidSim.Core
if (stepCount % 20 == 0)
{
double pCav = cavity.Pressure;
double mdotA = neck.PortA.MassFlowRate; // positive = into pipe (leaving cavity)
// Mass flow rate is not directly available – we can compute from pressure difference or skip
Console.WriteLine(
$"t={time * 1e3:F2} ms step={stepCount} " +
$"P_cav={pCav:F1} Pa, P_open={pOpen:F1} Pa, " +
$"mdot_A={mdotA * 1e3:F4} g/s, audio={audio:F4}");
$"audio={audio:F4}");
}
return audio;
@@ -100,7 +95,7 @@ namespace FluidSim.Core
float dx = neckLenPx / (n - 1);
float baseRadius = 20f;
Vertex[] vertices = new Vertex[n * 2];
var vertices = new Vertex[n * 2];
for (int i = 0; i < n; i++)
{
float x = neckStartX + i * dx;