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Merge pull request #10 from UCBoulder/FEAT/add-multiphase-balance-of-…
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…mass-calculation

Feat/add multiphase balance of mass calculation
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@NateAM
NateAM authored Nov 7, 2024
2 parents ffd29fd + 9a99042 commit 2adbba0
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1 change: 1 addition & 0 deletions docs/sphinx/changelog.rst
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Expand Up @@ -12,6 +12,7 @@ Changelog
New Features
============
- Added iterator based calculation of the balance of mass (:pull:`9`). By `Nathan Miller`_.
- Added a multiphase balance of mass calculation (:pull:`10`). By `Nathan Miller`_.

******************
0.1.0 (11-07-2024)
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100 changes: 100 additions & 0 deletions src/cpp/tardigrade_balance_of_mass.cpp
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Expand Up @@ -160,6 +160,106 @@ namespace tardigradeBalanceEquations{

}

template<class scalarArray_iter, class floatVectorArray_iter, class secondOrderTensorArray_iter, class scalarArray_iter_out>
void computeBalanceOfMass( const scalarArray_iter &density_begin, const scalarArray_iter &density_end,
const scalarArray_iter &density_dot_begin, const scalarArray_iter &density_dot_end,
const floatVectorArray_iter &density_gradient_begin, const floatVectorArray_iter &density_gradient_end,
const floatVectorArray_iter &velocity_begin, const floatVectorArray_iter &velocity_end,
const secondOrderTensorArray_iter &velocity_gradient_begin, const secondOrderTensorArray_iter &velocity_gradient_end,
scalarArray_iter_out mass_change_rate_begin, scalarArray_iter_out mass_change_rate_end ){
/*!
* Compute the balance of mass for a multi-phase continuum returning the values of the mass-change rate
*
* \f$ \frac{\partial \rho}{\partial t} + \left( \rho v_i \right)_{,i} = c \f$
*
* \param &density_begin: The starting point of the density \f$ \rho \f$
* \param &density_end: The stopping point of the density \f$ \rho \f$
* \param &density_dot_begin: The starting point of the partial time derivative of the density \f$ \frac{\partial \rho}{\partial t} \f$
* \param &density_dot_end: The stopping point of the partial time derivative of the density \f$ \frac{\partial \rho}{\partial t} \f$
* \param &density_gradient_begin: The starting point of the spatial gradient of the density \f$ \rho_{,i} \f$
* \param &density_gradient_end: The stopping point of the spatial gradient of the density \f$ \rho_{,i} \f$
* \param &velocity_begin: The starting point of the velocity \f$ v_i \f$
* \param &velocity_end: The stopping point of the velocity \f$ v_i \f$
* \param &velocity_gradient_begin: The starting point of the spatial gradient of the velocity \f$ v_{i,j} \f$
* \param &velocity_gradient_end: The stopping point of the spatial gradient of the velocity \f$ v_{i,j} \f$
* \param &mass_change_rate_begin: The starting point of the rate of change of the mass \f$ c \f$
* \param &mass_change_rate_end: The stopping point of the rate of change of the mass \f$ c \f$
*/

unsigned int phase;

for ( auto rho = density_begin; rho != density_end; rho++ ){

phase = ( unsigned int )( rho - density_begin );

computeBalanceOfMass( *( density_begin + phase ), *( density_dot_begin + phase ),
density_gradient_begin + dim * phase, density_gradient_begin + dim * ( phase + 1 ),
velocity_begin + dim * phase, velocity_begin + dim * ( phase + 1 ),
velocity_gradient_begin + sot_dim * phase, velocity_gradient_begin + sot_dim * ( phase + 1 ),
*( mass_change_rate_begin + phase ) );

}

}

template<class scalarArray_iter, class floatVector_iter, class secondOrderTensor_iter, class scalarArray_iter_out, class floatVector_iter_out, class secondOrderTensor_iter_out>
void computeBalanceOfMass( const scalarArray_iter &density_begin, const scalarArray_iter &density_end,
const scalarArray_iter &density_dot_begin, const scalarArray_iter &density_dot_end,
const floatVector_iter &density_gradient_begin, const floatVector_iter &density_gradient_end,
const floatVector_iter &velocity_begin, const floatVector_iter &velocity_end,
const secondOrderTensor_iter &velocity_gradient_begin, const secondOrderTensor_iter &velocity_gradient_end,
scalarArray_iter_out mass_change_rate_begin, scalarArray_iter_out mass_change_rate_end,
scalarArray_iter_out dCdRho_begin, scalarArray_iter_out dCdRho_end,
scalarArray_iter_out dCdRhoDot_begin, scalarArray_iter_out dCdRhoDot_end,
floatVector_iter_out dCdGradRho_begin, floatVector_iter_out dCdGradRho_end,
floatVector_iter_out dCdV_begin, floatVector_iter_out dCdV_end,
secondOrderTensor_iter_out dCdGradV_begin, secondOrderTensor_iter_out dCdGradV_end ){
/*!
* Compute the value of the balance of mass returning the value of the mass change rate
*
* \f$ \frac{\partial \rho}{\partial t} + \left( \rho v_i \right)_{,i} = c \f$
*
* \param &density: The value of the density \f$ \rho \f$
* \param &density_dot: The value of the partial time derivative of the density \f$ \frac{\partial \rho}{\partial t} \f$
* \param &density_gradient_begin: The starting point of the spatial gradient of the density \f$ \rho_{,i} \f$
* \param &density_gradient_end: The stopping point of the spatial gradient of the density \f$ \rho_{,i} \f$
* \param &velocity_begin: The starting point of the velocity \f$ v_i \f$
* \param &velocity_end: The stopping point of the velocity \f$ v_i \f$
* \param &velocity_gradient_begin: The starting point of the spatial gradient of the velocity \f$ v_{i,j} \f$
* \param &velocity_gradient_end: The stopping point of the spatial gradient of the velocity \f$ v_{i,j} \f$
* \param &mass_change_rate_begin: The starting point of the rate of change of the mass \f$ c \f$
* \param &mass_change_rate_end: The stopping point of the rate of change of the mass \f$ c \f$
* \param &dCdRho_begin: The starting point of the derivative of the mass change rate w.r.t. density \f$ \rho \f$
* \param &dCdRho_end: The stopping point of the derivative of the mass change rate w.r.t. density \f$ \rho \f$
* \param &dCdRhoDot_begin: The starting point of the derivative of the mass change rate w.r.t. partial time derivative of the density \f$ \frac{\partial \rho}{\partial t} \f$
* \param &dCdRhoDot_end: The stopping point of the derivative of the mass change rate w.r.t. partial time derivative of the density \f$ \frac{\partial \rho}{\partial t} \f$
* \param &dCdGradRho_begin: The starting point of the derivative of the mass change rate w.r.t. the spatial gradient of the density \f$ \rho_{,i} \f$
* \param &dCdGradRho_end: The stopping point of the derivative of the mass change rate w.r.t. the spatial gradient of the density \f$ \rho_{,i} \f$
* \param &dCdV_begin: The starting point of the derivative of the mass change rate w.r.t. the velocity \f$ v_{i} \f$
* \param &dCdV_end: The stopping point of the derivative of the mass change rate w.r.t. the velocity \f$ v_{i} \f$
* \param &dCdGradV_begin: The starting point of the derivative of the mass change rate w.r.t. the spatial gradient of the velocity \f$ v_{i,j} \f$
* \param &dCdGradV_end: The stopping point of the derivative of the mass change rate w.r.t. the spatial gradient of the velocity \f$ v_{i,j} \f$
*/

unsigned int phase;

for ( auto rho = density_begin; rho != density_end; rho++ ){

phase = ( unsigned int )( rho - density_begin );

computeBalanceOfMass( *( density_begin + phase ), *( density_dot_begin + phase ),
density_gradient_begin + dim * phase, density_gradient_begin + dim * ( phase + 1 ),
velocity_begin + dim * phase, velocity_begin + dim * ( phase + 1 ),
velocity_gradient_begin + sot_dim * phase, velocity_gradient_begin + sot_dim * ( phase + 1 ),
*( mass_change_rate_begin + phase ), *( dCdRho_begin + phase ), *( dCdRhoDot_begin + phase ),
dCdGradRho_begin + dim * phase, dCdGradRho_begin + dim * ( phase + 1 ),
dCdV_begin + dim * phase, dCdV_begin + dim * ( phase + 1 ),
dCdGradV_begin + sot_dim * phase, dCdGradV_begin + sot_dim * ( phase + 1 ) );

}

}

}

}
21 changes: 21 additions & 0 deletions src/cpp/tardigrade_balance_of_mass.h
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Expand Up @@ -53,6 +53,27 @@ namespace tardigradeBalanceEquations{
floatVector_iter_out dCdV_begin, floatVector_iter_out dCdV_end,
secondOrderTensor_iter_out dCdGradV_begin, secondOrderTensor_iter_out dCdGradV_end );

template<class scalarArray_iter, class floatVectorArray_iter, class secondOrderTensorArray_iter, class scalarArray_iter_out>
void computeBalanceOfMass( const scalarArray_iter &density_begin, const scalarArray_iter &density_end,
const scalarArray_iter &density_dot_begin, const scalarArray_iter &density_dot_end,
const floatVectorArray_iter &density_gradient_begin, const floatVectorArray_iter &density_gradient_end,
const floatVectorArray_iter &velocity_begin, const floatVectorArray_iter &velocity_end,
const floatVectorArray_iter &velocity_gradient_begin, const floatVectorArray_iter &velocity_gradient_end,
scalarArray_iter_out mass_change_rate_start, scalarArray_iter_out mass_change_rate_stop );

template<class scalarArray_iter, class floatVector_iter, class secondOrderTensor_iter, class scalarArray_iter_out, class floatVector_iter_out, class secondOrderTensor_iter_out>
void computeBalanceOfMass( const scalarArray_iter &density_begin, const scalarArray_iter &density_end,
const scalarArray_iter &density_dot_begin, const scalarArray_iter &density_dot_end,
const floatVector_iter &density_gradient_begin, const floatVector_iter &density_gradient_end,
const floatVector_iter &velocity_begin, const floatVector_iter &velocity_end,
const secondOrderTensor_iter &velocity_gradient_begin, const secondOrderTensor_iter &velocity_gradient_end,
scalarArray_iter_out mass_change_rate_begin, scalarArray_iter_out mass_change_rate_end,
scalarArray_iter_out dCdRho_begin, scalarArray_iter_out dCdRho_end,
scalarArray_iter_out dCdRhoDot_begin, scalarArray_iter_out dCdRhoDot_end,
floatVector_iter_out dCdGradRho_begin, floatVector_iter_out dCdGradRho_end,
floatVector_iter_out dCdV_begin, floatVector_iter_out dCdV_end,
secondOrderTensor_iter_out dCdGradV_begin, secondOrderTensor_iter_out dCdGradV_end );

}

}
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