211 lines
8.5 KiB
C
211 lines
8.5 KiB
C
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//+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
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// PPPPP H H EEEEE N N GGGGG L EEEEE III +
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// P P H H E NN N G L E I +
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// PPPPP HHHHH EEEEE N N N G GG L EEEEE I +
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// P H H E N N N G G L E I +
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// P H H EEEEE N N GGGGG LLLLL EEEEE III +
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//------------------------------------------------------------------------+
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// Platform for Hybrid Engineering Simulation of Flows +
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// China Aerodynamics Research and Development Center +
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// (C) Copyright, Since 2010 +
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//+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
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//! @file Limiter.h
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//! @brief Spatial inviscid flux limiter.
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//! @author Bell.
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#pragma once
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#include "Geo_UnstructGrid.h"
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using namespace std;
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namespace PHSPACE
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{
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template < typename T >
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class Data2D;
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class Gradient;
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//! @brief Limiter class defines the method of limiter function during inviscid flux calculation.\n
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//! calculate limiter with inter faces communication.
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class Limiter
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{
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public:
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typedef RDouble * iterator;
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private:
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//! The unstructured grid that the variables load on.
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UnstructGrid * grid;
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//! The variables that need to calculate limiter.
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RDouble ** q;
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//! Number of variables, which is the above 'q', that need to calculate limiter.
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int nLimiterVariables;
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//! Gradient of the variables, which is the above 'q', that need to calculate limiter.
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//Gradient *gradient;
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//! Two-dimensional limiter pointer.\n
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//! 1th dim point to the variable limiter.\n
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//! 2nd dim point to the limiter value on each cell.
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Data2D<RDouble> * limit;
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//! Limiter variable name, used to identity interface limiter when parallel communication.
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string limiterVarName;
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//! Limiter type.
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//! - # ILMT_NOLIM (1): Without limiter.
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//! - # ILMT_FIRST (2): First order.
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//! - # ILMT_BARTH (3): Barth limiter, for unstructured solver.
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//! - # ILMT_VENCAT (4): Vencat limiter, for unstructured solver.
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//! - # ILMT_STRUCT (10):
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//! - # ILMT_MINMOD (11): MINMOD limiter, for structured solver.
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//! - # ILMT_VAN_ALBADA (12): Van Albada limiter, for structured solver.
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//! - # ILMT_VAN_ALBADA_CLZ (13):
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//! - # ILMT_VANLEER (14): VanLeer limiter, for structured solver.
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//! - # ILMT_SMOOTH (15):
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//! - # ILMT_MINMODTEST (16):
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//! - # ILMT_MIN_VAN (17):
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int limiterTypeID;
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//! Limiter model:\n
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//! -# 0: limit only for pressure and density, then get the min value\n
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//! -# 1: limit for every variables, then get the min value
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int limitModel;
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//! Scalar or vector limiter:\n
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//! -# 0: Each variable use the same limiter coefficient.\n
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//! -# 1: Each variable use the respective limiter coefficients.
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int limitVector;
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//! Vencat limiter type.\n
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//! -# 0: The modification of Dr. Wang, AIAA-96-2091. Independent of grid scale.
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//! venkatCoeff = [0.01, 0.2].
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//! -# 2: This limiter type was proposed by CXH. Which has nothing to do with grid scale, mach number.
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//! But it need to be V&V in more numerical experiments.
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//! -# 3: This limiter type was modified by NeverMore.
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//! Which the limiter coefficient of eps^2 is influenced by cell volume,
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//! other than distance between cell center and face center, that was used in VencatLimiter4.
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//! -# 4: Original format vencat limiter, depend on grid scale.
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int vencatLimiterType;
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public:
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//! @param[in] gridin The unstructured grid that the variables load on.\n
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//! @param[in] q The variables that need to calculate limiter.\n
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//! @param[in] gradient Gradient of the variables, which is the above 'q',
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//! that need to calculate limiter.\n
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//! @param[in] nVariable Number of variables, which is the above 'q',
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//! that need to calculate limiter.\n
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//! @param[in] limiterVar Name Limiter variable name,
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//! used to identity interface limiter when parallel communication.
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LIB_EXPORT Limiter(UnstructGrid *gridin, RDouble **q, int nVariable, const string &limiterVarName);
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LIB_EXPORT ~Limiter();
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public:
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//! Set limiter type.\n
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//! - # ILMT_NOLIM (1): Without limiter.\n
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//! - # ILMT_FIRST (2): First order.\n
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//! - # ILMT_BARTH (3): Barth limiter, for unstructured solver.\n
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//! - # ILMT_VENCAT (4): Vencat limiter, for unstructured solver.\n
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//! - # ILMT_STRUCT (10):\n
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//! - # ILMT_MINMOD (11): MINMOD limiter, for structured solver.\n
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//! - # ILMT_VAN_ALBADA (12): Van Albada limiter, for structured solver.\n
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//! - # ILMT_VAN_ALBADA_CLZ (13):\n
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//! - # ILMT_VANLEER (14): VanLeer limiter, for structured solver.\n
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//! - # ILMT_SMOOTH (15):\n
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//! - # ILMT_MINMODTEST (16):\n
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//! - # ILMT_MIN_VAN (17):\n
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LIB_EXPORT void SetLimiterTypeID(int uns_limiter);
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//! Set limiter model:\n
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//! -# 0: limit only for pressure and density, then get the min value\n
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//! -# 1: limit for every variables, then get the min value
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LIB_EXPORT void SetLimiterModel(int limit_mode);
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//! Set scalar or vector limiter:\n
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//! -# 0: Each variable use the same limiter coefficient.\n
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//! -# 1: Each variable use the respective limiter coefficients.
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LIB_EXPORT void SetLimiterVector(int limit_vec);
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//! Set Vencat limiter type.\n
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//! -# 0: The modification of Dr. Wang, AIAA-96-2091. Independent of grid scale.
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//! venkatCoeff = [0.01, 0.2].
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//! -# 2: This limiter type was proposed by CXH. Which has nothing to do with grid scale, mach number.
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//! But it need to be V&V in more numerical experiments.\n
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//! -# 3: This limiter type was modified by NeverMore.
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//! Which the limiter coefficient of eps^2 is influenced by cell volume,
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//! other than distance between cell center and face center, that was used in VencatLimiter4.\n
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//! -# 4: Original format vencat limiter, depend on grid scale.
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LIB_EXPORT void SetVencatLimiterType(int VenkatLimiterType);
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//! Return limiter of ith-variable.
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LIB_EXPORT iterator GetLimiter(int m = 0);
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//! Run the limiter calculation.
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LIB_EXPORT void Calculation(Grid *grid);
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//! Initialzie the Two-dimensional limiter pointer(limit)'s data
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LIB_EXPORT void InitLimitData();
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public:
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void CreateLimiter(int nsize, int neqn = 1);
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void BarthLimiter (RDouble *limit, RDouble *q, RDouble *dqdx, RDouble *dqdy, RDouble *dqdz);
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void VencatLimiter (RDouble *limit, RDouble *q, RDouble *dqdx, RDouble *dqdy, RDouble *dqdz, int iVariable = 0);
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void VencatLimiter0(RDouble *limit, RDouble *q, RDouble *dqdx, RDouble *dqdy, RDouble *dqdz);
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void VencatLimiter1(RDouble *limit, RDouble *q, RDouble *dqdx, RDouble *dqdy, RDouble *dqdz);
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void VencatLimiter2(RDouble *limit, RDouble *q, RDouble *dqdx, RDouble *dqdy, RDouble *dqdz, int iVariable = 0);
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void VencatLimiter3(RDouble *limit, RDouble *q, RDouble *dqdx, RDouble *dqdy, RDouble *dqdz, int iVariable = 0);
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void VencatLimiter4(RDouble *limit, RDouble *q, RDouble *dqdx, RDouble *dqdy, RDouble *dqdz); // Bell 20121028 add
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void VencatLimiter5(RDouble *limit, RDouble *q, RDouble *dqdx, RDouble *dqdy, RDouble *dqdz);
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void VencatLimiter6(RDouble *limit, RDouble *q, RDouble *dqdx, RDouble *dqdy, RDouble *dqdz);
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void VencatLimiter7(RDouble *limit, RDouble *q, RDouble *dqdx, RDouble *dqdy, RDouble *dqdz, int iVariable = 0);
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void MinMaxDiff(RDouble *dmin, RDouble *dmax, RDouble *q);
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};
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#include "Limiter.hxx"
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template < typename T >
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class Data2D
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{
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private:
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T *data;
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int nsize, neqn, ntotal_size;
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public:
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//! type definitions
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typedef T value_type;
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typedef T* iterator;
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public:
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Data2D()
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{
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data = 0;
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}
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~Data2D()
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{
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delete [] data;
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}
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public:
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void CreateData(int nsize, int neqn = 1)
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{
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this->nsize = nsize;
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this->neqn = neqn;
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ntotal_size = nsize * neqn;
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data = new T [ ntotal_size ];
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std::fill_n(data, ntotal_size, 0);
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}
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iterator GetData(int m)
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{
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return &data[ m * nsize ];
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}
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template < typename T2 >
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void SetData(const T2 & value)
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{
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T t_value = value;
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std::fill_n(data, ntotal_size, t_value);
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}
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};
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void Init_Limiters(Grid *grid_in, RDouble *limit);
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int GetLimiterID(const string &limiter_name);
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}
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