feat(field-support): added field support system, mid migration

currently the barotope and the pressure force operator are migrated to the new support system
2026-08-23 10:13:53 -04:00
parent dc912fd15e
commit 0f3ca8050b
137 changed files with 29975 additions and 16389 deletions
--- a/libmeanfield/interface/models/structure/polytropic.cppm
+++ b/libmeanfield/interface/models/structure/polytropic.cppm
@@ -0,0 +1,68 @@
+module;
+
+#include <vector>
+
+#include <mfem.hpp>
+
+export module mean_field:model.structure.polytropic;
+
+export import :eos.polytrope;
+export import :model.structure.base;
+
+import :utils.misc;
+
+export namespace mean_field::models::structure {
+    class PolytropicStructure final : public StructureBase {
+    public:
+        explicit PolytropicStructure(
+            eos::Polytrope equationOfState,
+            double targetMass
+        );
+
+        [[nodiscard]] const eos::EquationOfState &equationOfState() const noexcept override;
+
+        [[nodiscard]] double targetMass() const noexcept override;
+
+        [[nodiscard]] StructureSeed makeInitialSeed(const StructureSeedRequest &request) const override;
+
+        void validate() const override;
+
+    private:
+        struct LaneEmdenPoint {
+            double coordinate{0.0};
+            double value{0.0};
+            double derivative{0.0};
+        };
+
+        struct LaneEmdenDerivative {
+            double value{0.0};
+            double derivative{0.0};
+        };
+
+        static void validateSeedRequest(const StructureSeedRequest &request);
+
+        [[nodiscard]] static LaneEmdenDerivative evaluateLaneEmdenRhs(
+            double coordinate,
+            double value,
+            double derivative,
+            double polytropicIndex
+        );
+
+        [[nodiscard]] static LaneEmdenPoint takeLaneEmdenStep(
+            const LaneEmdenPoint &point,
+            double step,
+            double polytropicIndex
+        );
+
+        [[nodiscard]] static std::vector<LaneEmdenPoint> solveLaneEmden(double polytropicIndex);
+
+        [[nodiscard]] static double interpolateLaneEmdenValue(
+            const std::vector<LaneEmdenPoint> &solution,
+            double coordinate,
+            std::size_t &lowerIndex
+        );
+
+        eos::Polytrope m_equationOfState;
+        double m_targetMass;
+    };
+} // namespace mean_field::models::structure