grid_smoke_solver2.h

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// Copyright (c) 2018 Doyub Kim
//
// I am making my contributions/submissions to this project solely in my
// personal capacity and am not conveying any rights to any intellectual
// property of any third parties.
 
#ifndef INCLUDE_JET_GRID_SMOKE_SOLVER2_H_
#define INCLUDE_JET_GRID_SMOKE_SOLVER2_H_
 
#include <jet/grid_fluid_solver2.h>
 
namespace jet {
 
class GridSmokeSolver2 : public GridFluidSolver2 {
 public:
    class Builder;
 
    GridSmokeSolver2();
 
    GridSmokeSolver2(
        const Size2& resolution,
        const Vector2D& gridSpacing,
        const Vector2D& gridOrigin);
 
    virtual ~GridSmokeSolver2();
 
    double smokeDiffusionCoefficient() const;
 
    void setSmokeDiffusionCoefficient(double newValue);
 
    double temperatureDiffusionCoefficient() const;
 
    void setTemperatureDiffusionCoefficient(double newValue);
 
    double buoyancySmokeDensityFactor() const;
 
    void setBuoyancySmokeDensityFactor(double newValue);
 
    double buoyancyTemperatureFactor() const;
 
    void setBuoyancyTemperatureFactor(double newValue);
 
    double smokeDecayFactor() const;
 
    void setSmokeDecayFactor(double newValue);
 
    double smokeTemperatureDecayFactor() const;
 
    void setTemperatureDecayFactor(double newValue);
 
    ScalarGrid2Ptr smokeDensity() const;
 
    ScalarGrid2Ptr temperature() const;
 
    static Builder builder();
 
 protected:
    void onEndAdvanceTimeStep(double timeIntervalInSeconds) override;
 
    void computeExternalForces(double timeIntervalInSeconds) override;
 
 private:
    size_t _smokeDensityDataId;
    size_t _temperatureDataId;
    double _smokeDiffusionCoefficient = 0.0;
    double _temperatureDiffusionCoefficient = 0.0;
    double _buoyancySmokeDensityFactor = -0.000625;
    double _buoyancyTemperatureFactor = 5.0;
    double _smokeDecayFactor = 0.001;
    double _temperatureDecayFactor = 0.001;
 
    void computeDiffusion(double timeIntervalInSeconds);
 
    void computeBuoyancyForce(double timeIntervalInSeconds);
};
 
typedef std::shared_ptr<GridSmokeSolver2> GridSmokeSolver2Ptr;
 
 
class GridSmokeSolver2::Builder final
    : public GridFluidSolverBuilderBase2<GridSmokeSolver2::Builder> {
 public:
    GridSmokeSolver2 build() const;
 
    GridSmokeSolver2Ptr makeShared() const;
};
 
}  // namespace jet
 
#endif  // INCLUDE_JET_GRID_SMOKE_SOLVER2_H_