cantera/src/thermo/Elements.cpp
Harry Moffat cfa4493b51 Worked on fixing errors in the code that caused problems with downstream code.
Took out single_species compilation option

took out some deprecated warnings

Fixed an error in copy constructors for thermo.

Still an error with PYTHONPATH and the test suite

 -- more to come.
2013-09-02 00:58:28 +00:00

602 lines
15 KiB
C++

/**
* @file Elements.cpp
* This file contains a database of atomic weights.
*/
// Copyright 2003 California Institute of Technology
#include "cantera/thermo/Elements.h"
#include "cantera/base/xml.h"
#include "cantera/base/ctml.h"
#include "cantera/base/ctexceptions.h"
#include "cantera/base/stringUtils.h"
using namespace ctml;
using namespace std;
namespace Cantera
{
/*! Database for atomic molecular weights
* Values are taken from the 1989 Standard Atomic Weights, CRC
*
* awTable[] is a static function with scope limited to this file.
* It can only be referenced via the LookupWtElements() function.
*
* units = kg / kg-mol (or equivalently gm / gm-mol)
*
* This structure was picked because it's simple, compact, and extensible.
*/
struct awData {
char name[4]; //!< Null Terminated name, First letter capitalized
double atomicWeight; //!< atomic weight in kg / kg-mol
};
/*!
* @var static struct awData aWTable[]
* \brief aWTable is a vector containing the atomic weights database.
*
* The size of the table is given by the initial instantiation.
*/
static struct awData aWTable[] = {
{"H", 1.00794},
{"D", 2.0 },
{"Tr", 3.0 },
{"He", 4.002602},
{"Li", 6.941 },
{"Be", 9.012182},
{"B", 10.811 },
{"C", 12.011 },
{"N", 14.00674},
{"O", 15.9994 },
{"F", 18.9984032},
{"Ne", 20.1797 },
{"Na", 22.98977},
{"Mg", 24.3050 },
{"Al", 26.98154},
{"Si", 28.0855 },
{"P", 30.97376},
{"S", 32.066 },
{"Cl", 35.4527 },
{"Ar", 39.948 },
{"K", 39.0983 },
{"Ca", 40.078 },
{"Sc", 44.95591},
{"Ti", 47.88 },
{"V", 50.9415 },
{"Cr", 51.9961 },
{"Mn", 54.9381 },
{"Fe", 55.847 },
{"Co", 58.9332 },
{"Ni", 58.69 },
{"Cu", 63.546 },
{"Zn", 65.39 },
{"Ga", 69.723 },
{"Ge", 72.61 },
{"As", 74.92159},
{"Se", 78.96 },
{"Br", 79.904 },
{"Kr", 83.80 },
{"Rb", 85.4678 },
{"Sr", 87.62 },
{"Y", 88.90585},
{"Zr", 91.224 },
{"Nb", 92.90638},
{"Mo", 95.94 },
{"Tc", 97.9072 },
{"Ru", 101.07 },
{"Rh", 102.9055 },
{"Pd", 106.42 },
{"Ag", 107.8682 },
{"Cd", 112.411 },
{"In", 114.82 },
{"Sn", 118.710 },
{"Sb", 121.75 },
{"Te", 127.6 },
{"I", 126.90447},
{"Xe", 131.29 },
{"Cs", 132.90543},
{"Ba", 137.327 },
{"La", 138.9055 },
{"Ce", 140.115 },
{"Pr", 140.90765},
{"Nd", 144.24 },
{"Pm", 144.9127 },
{"Sm", 150.36 },
{"Eu", 151.965 },
{"Gd", 157.25 },
{"Tb", 158.92534},
{"Dy", 162.50 },
{"Ho", 164.93032},
{"Er", 167.26 },
{"Tm", 168.93421},
{"Yb", 173.04 },
{"Lu", 174.967 },
{"Hf", 178.49 },
{"Ta", 180.9479 },
{"W", 183.85 },
{"Re", 186.207 },
{"Os", 190.2 },
{"Ir", 192.22 },
{"Pt", 195.08 },
{"Au", 196.96654},
{"Hg", 200.59 },
{"Ti", 204.3833 },
{"Pb", 207.2 },
{"Bi", 208.98037},
{"Po", 208.9824 },
{"At", 209.9871 },
{"Rn", 222.0176 },
{"Fr", 223.0197 },
{"Ra", 226.0254 },
{"Ac", 227.0279 },
{"Th", 232.0381 },
{"Pa", 231.03588},
{"U", 238.0508 },
{"Np", 237.0482 },
{"Pu", 244.0482 }
};
// Static function to look up an atomic weight
/*
* This static function looks up the argument string in the
* database above and returns the associated molecular weight.
* The data are from the periodic table.
*
* Note: The idea behind this function is to provide a unified
* source for the element atomic weights. This helps to
* ensure that mass is conserved.
*
* @param s String, Only the first 3 characters are significant
*
* @return
* Return value contains the atomic weight of the element
* If a match for the string is not found, a value of -1.0 is
* returned.
*
* @exception CanteraError
* If a match is not found, a CanteraError is thrown as well
*/
doublereal Elements::LookupWtElements(const std::string& ename)
{
int num = sizeof(aWTable) / sizeof(struct awData);
string s3 = ename.substr(0,3);
for (int i = 0; i < num; i++) {
if (s3 == aWTable[i].name) {
return aWTable[i].atomicWeight;
}
}
throw CanteraError("LookupWtElements", "element not found");
return -1.0;
}
doublereal LookupWtElements(const std::string& ename)
{
int num = sizeof(aWTable) / sizeof(struct awData);
string s3 = ename.substr(0,3);
for (int i = 0; i < num; i++) {
if (s3 == aWTable[i].name) {
return aWTable[i].atomicWeight;
}
}
throw CanteraError("LookupWtElements", "element not found");
return -1.0;
}
//! Exception class to indicate a fixed set of elements.
/*!
* This class is used to warn the user when the number of elements
* are changed after at least one species is defined.
*/
class ElementsFrozen : public CanteraError
{
public:
//! Constructor for class
/*!
* @param func Function where the error occurred.
*/
ElementsFrozen(string func)
: CanteraError(func,
"elements cannot be added after species.") {}
};
/*
* Elements Class Constructor
* We initialize all internal variables to zero here.
*/
Elements::Elements() :
m_mm(0),
m_elementsFrozen(false),
m_elem_type(0),
numSubscribers(0)
{
}
/*
* Elements Class Destructor
* If the number of subscribers is not zero, through an error.
* A logic problem has occurred.
*
* @exception CanteraError
*/
Elements::~Elements()
{
if (numSubscribers != 0) {
throw CanteraError("~Elements", "numSubscribers not zero");
}
}
Elements::Elements(const Elements& right) :
m_mm(0),
m_elementsFrozen(false),
numSubscribers(0)
{
*this = operator=(right);
}
Elements& Elements::operator=(const Elements& right)
{
if (&right == this) {
return *this;
}
m_mm = right.m_mm;
m_elementsFrozen = right.m_elementsFrozen;
m_atomicWeights = right.m_atomicWeights;
m_atomicNumbers = right.m_atomicNumbers;
m_elementNames = right.m_elementNames;
m_entropy298 = right.m_entropy298;
m_elem_type = right.m_elem_type;
numSubscribers = 0;
return *this;
}
/*
* freezeElements():
*
* Set the freeze flag. This is a prerequesite to other
* activivities, i.e., this is done before species are defined.
*/
void Elements::freezeElements()
{
m_elementsFrozen = true;
}
/*
* elementIndex():
*
* Index of element named \c name. The index is an integer
* assigned to each element in the order it was added,
* beginning with 0 for the first element. If \c name is not
* the name of an element in the set, then the value -1 is
* returned.
*
*/
int Elements::elementIndex(const std::string& name) const
{
for (int i = 0; i < m_mm; i++) {
if (m_elementNames[i] == name) {
return i;
}
}
return -1;
}
/*
*
* Name of the element with index \c m. @param m Element
* index. If m < 0 or m >= nElements() an exception is thrown.
*/
string Elements::elementName(int m) const
{
if (m < 0 || m >= nElements()) {
throw CanteraError("Elements::elementName()", "out of bounds: " + int2str(m) + " " + int2str(nElements()));
}
return m_elementNames[m];
}
doublereal Elements::entropyElement298(int m) const
{
AssertThrowMsg(m_entropy298[m] != ENTROPY298_UNKNOWN,
"Elements::entropy298",
"Entropy at 298 K of element is unknown");
AssertTrace(m >= 0 && m < m_mm);
return m_entropy298[m];
}
//====================================================================================================================
//! Return the element constraint type
/*!
* Possible types include:
*
* CT_ELEM_TYPE_TURNEDOFF -1
* CT_ELEM_TYPE_ABSPOS 0
* CT_ELEM_TYPE_ELECTRONCHARGE 1
* CT_ELEM_TYPE_CHARGENEUTRALITY 2
* CT_ELEM_TYPE_LATTICERATIO 3
* CT_ELEM_TYPE_KINETICFROZEN 4
* CT_ELEM_TYPE_SURFACECONSTRAINT 5
* CT_ELEM_TYPE_OTHERCONSTRAINT 6
*
* The default is CT_ELEM_TYPE_ABSPOS
*/
int Elements::elementType(int m) const
{
return m_elem_type[m];
}
//====================================================================================================================
// Change the element type of the mth constraint
/*
* Reassigns an element type
*
* @param m Element index
* @param elem_type New elem type to be assigned
*
* @return Returns the old element type
*/
int Elements::changeElementType(int m, int elem_type)
{
int old = m_elem_type[m];
m_elem_type[m] = elem_type;
return old;
}
//====================================================================================================================
/*
*
* Add an element to the current set of elements in the current object.
* @param symbol symbol string
* @param weight atomic weight in kg/kmol.
*
* The default weight is a special value, which will cause the
* routine to look up the actual weight via a string lookup.
*
* There are two interfaces to this routine. The XML interface
* looks up the required parameters for the regular interface
* and then calls the base routine.
*/
void Elements::
addElement(const std::string& symbol, doublereal weight)
{
if (weight == -12345.0) {
weight = LookupWtElements(symbol);
if (weight < 0.0) {
throw ElementsFrozen("addElement");
}
}
if (m_elementsFrozen) {
throw ElementsFrozen("addElement");
return;
}
m_atomicWeights.push_back(weight);
m_elementNames.push_back(symbol);
if (symbol == "E") {
m_elem_type.push_back(CT_ELEM_TYPE_ELECTRONCHARGE);
} else {
m_elem_type.push_back(CT_ELEM_TYPE_ABSPOS);
}
m_mm++;
}
//===========================================================================================================
void Elements::
addElement(const XML_Node& e)
{
doublereal weight = fpValue(e["atomicWt"]);
string symbol = e["name"];
addElement(symbol, weight);
}
//===========================================================================================================
/*
* addUniqueElement():
*
* Add a unique element to the set. This routine will not allow
* duplicate elements to be input.
*
* @param symbol symbol string
* @param weight atomic weight in kg/kmol.
*
*
* The default weight is a special value, which will cause the
* routine to look up the actual weight via a string lookup.
*/
void Elements::
addUniqueElement(const std::string& symbol,
doublereal weight, int atomicNumber_, doublereal entropy298,
int elem_type)
{
if (weight == -12345.0) {
weight = LookupWtElements(symbol);
if (weight < 0.0) {
throw ElementsFrozen("addElement");
}
}
/*
* First decide if this element has been previously added
* by conducting a string search. If it unique, add it to
* the list.
*/
int ifound = 0;
int i = 0;
for (vector<string>::const_iterator it = m_elementNames.begin();
it < m_elementNames.end(); ++it, ++i) {
if (*it == symbol) {
ifound = 1;
break;
}
}
if (!ifound) {
if (m_elementsFrozen) {
throw ElementsFrozen("addElement");
return;
}
m_atomicWeights.push_back(weight);
m_elementNames.push_back(symbol);
m_atomicNumbers.push_back(atomicNumber_);
m_entropy298.push_back(entropy298);
if (symbol == "E") {
m_elem_type.push_back(CT_ELEM_TYPE_ELECTRONCHARGE);
} else {
m_elem_type.push_back(elem_type);
}
m_mm++;
} else {
if (m_atomicWeights[i] != weight) {
throw CanteraError("AddUniqueElement",
"Duplicate Elements (" + symbol + ") have different weights");
}
}
}
/*
* @todo call addUniqueElement(symbol, weight) instead of
* addElement.
*/
void Elements::
addUniqueElement(const XML_Node& e)
{
doublereal weight = 0.0;
if (e.hasAttrib("atomicWt")) {
weight = fpValue(stripws(e["atomicWt"]));
}
int anum = 0;
if (e.hasAttrib("atomicNumber")) {
anum = atoi(stripws(e["atomicNumber"]).c_str());
}
string symbol = e["name"];
doublereal entropy298 = ENTROPY298_UNKNOWN;
if (e.hasChild("entropy298")) {
XML_Node& e298Node = e.child("entropy298");
if (e298Node.hasAttrib("value")) {
entropy298 = fpValueCheck(stripws(e298Node["value"]));
}
}
if (weight != 0.0) {
addUniqueElement(symbol, weight, anum, entropy298);
} else {
addUniqueElement(symbol);
}
}
// True if freezeElements has been called.
bool Elements::elementsFrozen() const
{
return m_elementsFrozen;
}
/*
* clear()
*
* Remove all elements from the structure.
*/
void Elements::clear()
{
m_mm = 0;
m_atomicWeights.resize(0);
m_elementNames.resize(0);
m_entropy298.resize(0);
m_elem_type.resize(0);
m_elementsFrozen = false;
}
/*
* ready():
*
* True if the elements have been frozen
*/
bool Elements::ready() const
{
return m_elementsFrozen;
}
void Elements::addElementsFromXML(const XML_Node& phase)
{
// get the declared element names
if (! phase.hasChild("elementArray")) {
throw CanteraError("Elements::addElementsFromXML",
"phase xml node doesn't have \"elementArray\" XML Node");
}
XML_Node& elements = phase.child("elementArray");
vector<string> enames;
getStringArray(elements, enames);
// // element database defaults to elements.xml
string element_database = "elements.xml";
if (elements.hasAttrib("datasrc")) {
element_database = elements["datasrc"];
}
XML_Node* doc = get_XML_File(element_database);
XML_Node* dbe = &doc->child("ctml/elementData");
XML_Node& root = phase.root();
XML_Node* local_db = 0;
if (root.hasChild("ctml")) {
if (root.child("ctml").hasChild("elementData")) {
local_db = &root.child("ctml/elementData");
}
}
int nel = static_cast<int>(enames.size());
int i;
string enm;
XML_Node* e = 0;
for (i = 0; i < nel; i++) {
e = 0;
if (local_db) {
//writelog("looking in local database.");
e = local_db->findByAttr("name",enames[i]);
//if (!e) writelog(enames[i]+" not found.");
}
if (!e) {
e = dbe->findByAttr("name",enames[i]);
}
if (e) {
addUniqueElement(*e);
} else {
throw CanteraError("addElementsFromXML","no data for element "
+enames[i]);
}
}
}
/*
* subscribe(), unsubscribe(), and reportSubscriptions():
*
* Handles setting and reporting the number of subscriptions to this
* object.
*/
void Elements::subscribe()
{
++numSubscribers;
}
int Elements::unsubscribe()
{
--numSubscribers;
return numSubscribers;
}
int Elements::reportSubscriptions() const
{
return numSubscribers;
}
/********************* GLOBAL STATIC SECTION **************************/
/*
* We keep track of a vector of pointers to element objects.
* Initially there are no Elements objects. Whenever one is created,
* the pointer to that object is added onto this list.
*/
vector<Elements*> Elements::Global_Elements_List;
/***********************************************************************/
}