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gasSphereFlanks: add inner radius #66

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Sep 23, 2013
Merged

gasSphereFlanks: add inner radius #66

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3 changes: 3 additions & 0 deletions examples/Bunch/include/simulation_defines/param/gasConfig.param
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Original file line number Diff line number Diff line change
Expand Up @@ -141,6 +141,9 @@ namespace picongpu
/** Radius of the constant sphere
* unit: meter */
const double GAS_R_SI = 1.0e3;
/** Inner radius if you want to build a shell/ring
* unit: meter */
const double GAS_RI_SI = 0.0;

/** Middle of the constant sphere
* unit: meter */
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3 changes: 3 additions & 0 deletions examples/KelvinHelmholtz/include/simulation_defines/param/gasConfig.param
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Expand Up @@ -141,6 +141,9 @@ namespace picongpu
/** Radius of the constant sphere
* unit: meter */
const double GAS_R_SI = 1.0e3;
/** Inner radius if you want to build a shell/ring
* unit: meter */
const double GAS_RI_SI = 0.0;

/** Middle of the constant sphere
* unit: meter */
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3 changes: 3 additions & 0 deletions examples/LaserWakefield/include/simulation_defines/param/gasConfig.param
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Expand Up @@ -141,6 +141,9 @@ namespace picongpu
/** Radius of the constant sphere
* unit: meter */
const double GAS_R_SI = 1.0e3;
/** Inner radius if you want to build a shell/ring
* unit: meter */
const double GAS_RI_SI = 0.0;

/** Middle of the constant sphere
* unit: meter */
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3 changes: 3 additions & 0 deletions examples/ThermalTest/include/simulation_defines/param/gasConfig.param
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Original file line number Diff line number Diff line change
Expand Up @@ -141,6 +141,9 @@ namespace picongpu
/** Radius of the constant sphere
* unit: meter */
const double GAS_R_SI = 1.0e3;
/** Inner radius if you want to build a shell/ring
* unit: meter */
const double GAS_RI_SI = 0.0;

/** Middle of the constant sphere
* unit: meter */
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3 changes: 3 additions & 0 deletions examples/WeibelTransverse/include/simulation_defines/param/gasConfig.param
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Original file line number Diff line number Diff line change
Expand Up @@ -141,6 +141,9 @@ namespace picongpu
/** Radius of the constant sphere
* unit: meter */
const double GAS_R_SI = 1.0e3;
/** Inner radius if you want to build a shell/ring
* unit: meter */
const double GAS_RI_SI = 0.0;

/** Middle of the constant sphere
* unit: meter */
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20 changes: 12 additions & 8 deletions src/picongpu/include/particles/gasProfiles/gasSphereFlanks.hpp
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Expand Up @@ -40,15 +40,19 @@ namespace picongpu
if( pos.y() < VACUUM_Y ) return float_X(0.0);

const float_X r = math::abs( pos - float3_X(GAS_X, GAS_Y, GAS_Z) );

// "hard core"
if( r <= GAS_R )

/* "shell": inner radius */
if( r < GAS_RI )
return float_X(0.0);
/* "hard core" */
else if( r <= GAS_R )
return float_X(1.0);

// "soft exp. flanks"
// note: by definition (return, see above) the
// argument [ GAS_R - r ] will be element of (-inf, 0)
return math::exp( ( GAS_R - r ) * GAS_EXP );

/* "soft exp. flanks"
* note: by definition (return, see above) the
* argument [ GAS_R - r ] will be element of (-inf, 0) */
else
return math::exp( ( GAS_R - r ) * GAS_EXP );
}
}
}
3 changes: 3 additions & 0 deletions src/picongpu/include/simulation_defines/param/gasConfig.param
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Original file line number Diff line number Diff line change
Expand Up @@ -141,6 +141,9 @@ namespace picongpu
/** Radius of the constant sphere
* unit: meter */
const double GAS_R_SI = 1.0e3;
/** Inner radius if you want to build a shell/ring
* unit: meter */
const double GAS_RI_SI = 0.0;

/** Middle of the constant sphere
* unit: meter */
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1 change: 1 addition & 0 deletions src/picongpu/include/simulation_defines/unitless/gasConfig.unitless
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Expand Up @@ -62,6 +62,7 @@ namespace picongpu
namespace gasSphereFlanks
{
const float_X GAS_R = float_X( SI::GAS_R_SI / UNIT_LENGTH );
const float_X GAS_RI = float_X( SI::GAS_RI_SI / UNIT_LENGTH );
const float_X GAS_X = float_X( SI::GAS_X_SI / UNIT_LENGTH );
const float_X GAS_Y = float_X( SI::GAS_Y_SI / UNIT_LENGTH );
const float_X GAS_Z = float_X( SI::GAS_Z_SI / UNIT_LENGTH );
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