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https://github.com/PhasicFlow/phasicFlow.git
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doc for integration
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@ -32,7 +32,7 @@ pFlow::AdamsBashforth5::AdamsBashforth5
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:
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integration(baseName, owner, pStruct, method),
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history_(
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owner.emplaceObject<HistoryFieldType>(
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owner.emplaceObject<pointField<VectorSingle,AB5History>>(
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objectFile(
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groupNames(baseName,"AB5History"),
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"",
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@ -30,12 +30,12 @@ namespace pFlow
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struct AB5History
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{
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TypeInfoNV("AB5History");
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realx3 dy1_={0,0,0};
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realx3 dy2_={0,0,0};
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realx3 dy3_={0,0,0};
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realx3 dy4_={0,0,0};
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TypeInfoNV("AB5History");
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};
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@ -71,18 +71,21 @@ iOstream& operator<<(iOstream& str, const AB5History& ab5)
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return str;
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}
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/**
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* Fifth order Adams-Bashforth integration method for solving ODE
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*
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* This is a one-step integration method and does not have prediction step.
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*/
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class AdamsBashforth5
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:
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public integration
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{
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protected:
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using HistoryFieldType = pointField<VectorSingle,AB5History>;
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// this is a device
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HistoryFieldType& history_;
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/// Integration history
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pointField<VectorSingle,AB5History>& history_;
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/// Range policy for integration kernel
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using rpIntegration = Kokkos::RangePolicy<
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DefaultExecutionSpace,
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Kokkos::Schedule<Kokkos::Static>,
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@ -91,32 +94,40 @@ protected:
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public:
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// type info
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/// Type info
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TypeInfo("AdamsBashforth5");
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//// - Constructors
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// - Constructors
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AdamsBashforth5(
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const word& baseName,
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repository& owner,
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const pointStructure& pStruct,
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const word& method);
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uniquePtr<integration> clone()const override
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{
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return makeUnique<AdamsBashforth5>(*this);
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}
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virtual ~AdamsBashforth5()=default;
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// - add a virtual constructor
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/// Add this to the virtual constructor table
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add_vCtor(
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integration,
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AdamsBashforth5,
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word);
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//// - Methods
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// - Methods
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bool predict(
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real UNUSED(dt),
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realx3Vector_D & UNUSED(y),
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realx3Vector_D& UNUSED(dy)) override;
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bool correct(real dt,
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bool correct(
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real dt,
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realx3Vector_D & y,
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realx3Vector_D& dy) override;
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@ -129,18 +140,17 @@ public:
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return false;
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}
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uniquePtr<integration> clone()const override
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{
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return makeUnique<AdamsBashforth5>(*this);
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}
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bool intAll(real dt,
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/// Integrate on all points in the active range
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bool intAll(
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real dt,
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realx3Vector_D& y,
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realx3Vector_D& dy,
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range activeRng);
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/// Integrate on active points in the active range
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template<typename activeFunctor>
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bool intRange(real dt,
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bool intRange(
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real dt,
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realx3Vector_D& y,
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realx3Vector_D& dy,
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activeFunctor activeP );
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@ -184,4 +194,4 @@ bool pFlow::AdamsBashforth5::intRange(
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} // pFlow
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#endif //__integration_hpp__
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#endif //
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