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doc/compute_smd_contact_radius.html

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  <meta name="viewport" content="width=device-width, initial-scale=1.0">

  

  <title>compute smd/contact_radius command &mdash; LAMMPS documentation</title>

  <title>compute smd/contact/radius command &mdash; LAMMPS documentation</title>
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  <ul class="wy-breadcrumbs">

    <li><a href="Manual.html">Docs</a> &raquo;</li>

      

    <li>compute smd/contact_radius command</li>

    <li>compute smd/contact/radius command</li>

      <li class="wy-breadcrumbs-aside">
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           <div itemprop="articleBody">

            

  <div class="section" id="compute-smd-contact-radius-command">

<span id="index-0"></span><h1>compute smd/contact_radius command<a class="headerlink" href="#compute-smd-contact-radius-command" title="Permalink to this headline"></a></h1>

<span id="index-0"></span><h1>compute smd/contact/radius command<a class="headerlink" href="#compute-smd-contact-radius-command" title="Permalink to this headline"></a></h1>

<div class="section" id="syntax">

<h2>Syntax<a class="headerlink" href="#syntax" title="Permalink to this headline"></a></h2>

<div class="highlight-python"><div class="highlight"><pre>compute ID group-ID smd/contact_radius

<div class="highlight-python"><div class="highlight"><pre>compute ID group-ID smd/contact/radius

</pre></div>

</div>

<ul class="simple">

<li>ID, group-ID are documented in <a class="reference internal" href="compute.html"><em>compute</em></a> command</li>

<li>smd/contact_radius = style name of this compute command</li>

<li>smd/contact/radius = style name of this compute command</li>

</ul>

</div>

<div class="section" id="examples">

<h2>Examples<a class="headerlink" href="#examples" title="Permalink to this headline"></a></h2>

<div class="highlight-python"><div class="highlight"><pre>compute 1 all smd/contact_radius

<div class="highlight-python"><div class="highlight"><pre>compute 1 all smd/contact/radius

</pre></div>

</div>

</div>

<div class="section" id="description">

<h2>Description<a class="headerlink" href="#description" title="Permalink to this headline"></a></h2>

<p>Define a computation which outputs the contact radius, i.e., the radius used to prevent particles from penetrating each other.

The contact radius is used only to prevent particles belonging to different physical bodies from penetrating each other. It is used by the contact pair styles,

e.g., smd/hertz and smd/tri_surface.</p>

<p>See <a class="reference external" href="USER/smd/SMD_LAMMPS_userguide.pdf">this PDF guide</a> to using Smooth Mach Dynamics in

LAMMPS.</p>

<p>Define a computation which outputs the contact radius, i.e., the

radius used to prevent particles from penetrating each other.  The

contact radius is used only to prevent particles belonging to

different physical bodies from penetrating each other. It is used by

the contact pair styles, e.g., smd/hertz and smd/tri_surface.</p>

<p>See <a class="reference external" href="USER/smd/SMD_LAMMPS_userguide.pdf">this PDF guide</a> to using Smooth

Mach Dynamics in LAMMPS.</p>

<p>The value of the contact radius will be 0.0 for particles not in the

specified compute group.</p>

<p><strong>Output info:</strong></p>

doc/compute_smd_contact_radius.txt

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:line



compute smd/contact_radius command :h3

compute smd/contact/radius command :h3



[Syntax:]



compute ID group-ID smd/contact_radius :pre

compute ID group-ID smd/contact/radius :pre



ID, group-ID are documented in "compute"_compute.html command

smd/contact_radius = style name of this compute command :ul

smd/contact/radius = style name of this compute command :ul



[Examples:]



compute 1 all smd/contact_radius :pre

compute 1 all smd/contact/radius :pre



[Description:]



Define a computation which outputs the contact radius, i.e., the radius used to prevent particles from penetrating each other.

The contact radius is used only to prevent particles belonging to different physical bodies from penetrating each other. It is used by the contact pair styles,

e.g., smd/hertz and smd/tri_surface.

Define a computation which outputs the contact radius, i.e., the

radius used to prevent particles from penetrating each other.  The

contact radius is used only to prevent particles belonging to

different physical bodies from penetrating each other. It is used by

the contact pair styles, e.g., smd/hertz and smd/tri_surface.



See "this PDF guide"_USER/smd/SMD_LAMMPS_userguide.pdf to using Smooth Mach Dynamics in

LAMMPS.

See "this PDF guide"_USER/smd/SMD_LAMMPS_userguide.pdf to using Smooth

Mach Dynamics in LAMMPS.



The value of the contact radius will be 0.0 for particles not in the

specified compute group.

doc/compute_smd_hourglass_error.html

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  <title>compute smd/hourglass_error command &mdash; LAMMPS documentation</title>

  <title>compute smd/hourglass/error command &mdash; LAMMPS documentation</title>
@@ -109,7 +109,7 @@ 
  <ul class="wy-breadcrumbs">

    <li><a href="Manual.html">Docs</a> &raquo;</li>

      

    <li>compute smd/hourglass_error command</li>

    <li>compute smd/hourglass/error command</li>

      <li class="wy-breadcrumbs-aside">
@@ -125,20 +125,20 @@ 
           <div itemprop="articleBody">

            

  <div class="section" id="compute-smd-hourglass-error-command">

<span id="index-0"></span><h1>compute smd/hourglass_error command<a class="headerlink" href="#compute-smd-hourglass-error-command" title="Permalink to this headline"></a></h1>

<span id="index-0"></span><h1>compute smd/hourglass/error command<a class="headerlink" href="#compute-smd-hourglass-error-command" title="Permalink to this headline"></a></h1>

<div class="section" id="syntax">

<h2>Syntax<a class="headerlink" href="#syntax" title="Permalink to this headline"></a></h2>

<div class="highlight-python"><div class="highlight"><pre>compute ID group-ID smd/hourglass_error

<div class="highlight-python"><div class="highlight"><pre>compute ID group-ID smd/hourglass/error

</pre></div>

</div>

<ul class="simple">

<li>ID, group-ID are documented in <a class="reference internal" href="compute.html"><em>compute</em></a> command</li>

<li>smd/hourglass_error = style name of this compute command</li>

<li>smd/hourglass/error = style name of this compute command</li>

</ul>

</div>

<div class="section" id="examples">

<h2>Examples<a class="headerlink" href="#examples" title="Permalink to this headline"></a></h2>

<div class="highlight-python"><div class="highlight"><pre>compute 1 all smd/hourglass_error

<div class="highlight-python"><div class="highlight"><pre>compute 1 all smd/hourglass/error

</pre></div>

</div>

</div>
@@ -148,24 +148,28 @@ 
relative separation with respect to the actual relative separation of

the particles i and j. Ideally, if the deformation gradient is exact,

and there exists a unique mapping between all particles&#8217; positions

within the neighborhood of the central node and the deformation gradient,

the approximated relative separation will coincide with the actual relative

separation of the particles i and j in the deformed configuration.

This compute is only really useful for debugging the hourglass control mechanim which is part of the Total-Lagrangian SPH pair style.</p>

<p>See <a class="reference external" href="USER/smd/SMD_LAMMPS_userguide.pdf">this PDF guide</a> to use Smooth Mach Dynamics in LAMMPS.</p>

within the neighborhood of the central node and the deformation

gradient, the approximated relative separation will coincide with the

actual relative separation of the particles i and j in the deformed

configuration.  This compute is only really useful for debugging the

hourglass control mechanim which is part of the Total-Lagrangian SPH

pair style.</p>

<p>See <a class="reference external" href="USER/smd/SMD_LAMMPS_userguide.pdf">this PDF guide</a> to use Smooth

Mach Dynamics in LAMMPS.</p>

<p><strong>Output Info:</strong></p>

<p>This compute calculates a per-particle vector, which can be accessed by

any command that uses per-particle values from a compute as input.  See

<a class="reference internal" href="Section_howto.html#howto-15"><span>How-to discussions, section 6.15</span></a>

for an overview of LAMMPS output options.</p>

<p>The per-particle vector values will are dimensionless. See <a class="reference internal" href="units.html"><em>units</em></a>.</p>

<p>The per-particle vector values will are dimensionless. See

<a class="reference internal" href="units.html"><em>units</em></a>.</p>

</div>

<div class="section" id="restrictions">

<h2>Restrictions<a class="headerlink" href="#restrictions" title="Permalink to this headline"></a></h2>

<p>This compute is part of the USER-SMD package.  It is only enabled if

LAMMPS was built with that package.  See the <a class="reference internal" href="Section_start.html#start-3"><span>Making LAMMPS</span></a>

section for more info.</p>

<p>This quantity will be computed only for particles which interact with tlsph pair style.</p>

LAMMPS was built with that package.  See the <a class="reference internal" href="Section_start.html#start-3"><span>Making LAMMPS</span></a> section for more info.</p>

<p>This quantity will be computed only for particles which interact with

tlsph pair style.</p>

<p><strong>Related Commands:</strong></p>

<p><a class="reference internal" href="compute_smd_tlsph_defgrad.html"><em>smd/tlsph_defgrad</em></a></p>

</div>

doc/compute_smd_hourglass_error.txt

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:line



compute smd/hourglass_error command :h3

compute smd/hourglass/error command :h3



[Syntax:]



compute ID group-ID smd/hourglass_error :pre

compute ID group-ID smd/hourglass/error :pre



ID, group-ID are documented in "compute"_compute.html command

smd/hourglass_error = style name of this compute command :ul

smd/hourglass/error = style name of this compute command :ul



[Examples:]



compute 1 all smd/hourglass_error :pre

compute 1 all smd/hourglass/error :pre



[Description:]
@@ -25,12 +25,15 @@ Define a computation which outputs the error of the approximated 
relative separation with respect to the actual relative separation of

the particles i and j. Ideally, if the deformation gradient is exact,

and there exists a unique mapping between all particles' positions

within the neighborhood of the central node and the deformation gradient,

the approximated relative separation will coincide with the actual relative

separation of the particles i and j in the deformed configuration.

This compute is only really useful for debugging the hourglass control mechanim which is part of the Total-Lagrangian SPH pair style.  

within the neighborhood of the central node and the deformation

gradient, the approximated relative separation will coincide with the

actual relative separation of the particles i and j in the deformed

configuration.  This compute is only really useful for debugging the

hourglass control mechanim which is part of the Total-Lagrangian SPH

pair style.



See "this PDF guide"_USER/smd/SMD_LAMMPS_userguide.pdf to use Smooth Mach Dynamics in LAMMPS.

See "this PDF guide"_USER/smd/SMD_LAMMPS_userguide.pdf to use Smooth

Mach Dynamics in LAMMPS.



[Output Info:]
@@ -39,15 +42,17 @@ any command that uses per-particle values from a compute as input. See 
"How-to discussions, section 6.15"_Section_howto.html#howto_15

for an overview of LAMMPS output options.



The per-particle vector values will are dimensionless. See "units"_units.html.

The per-particle vector values will are dimensionless. See

"units"_units.html.



[Restrictions:]



This compute is part of the USER-SMD package.  It is only enabled if

LAMMPS was built with that package.  See the "Making LAMMPS"_Section_start.html#start_3

section for more info.

LAMMPS was built with that package.  See the "Making

LAMMPS"_Section_start.html#start_3 section for more info.



This quantity will be computed only for particles which interact with tlsph pair style. 

This quantity will be computed only for particles which interact with

tlsph pair style.



[Related Commands:]

doc/compute_smd_internal_energy.html

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  <title>compute smd/internal_energy command &mdash; LAMMPS documentation</title>

  <title>compute smd/internal/energy command &mdash; LAMMPS documentation</title>
@@ -109,7 +109,7 @@ 
  <ul class="wy-breadcrumbs">

    <li><a href="Manual.html">Docs</a> &raquo;</li>

      

    <li>compute smd/internal_energy command</li>

    <li>compute smd/internal/energy command</li>

      <li class="wy-breadcrumbs-aside">
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           <div itemprop="articleBody">

            

  <div class="section" id="compute-smd-internal-energy-command">

<span id="index-0"></span><h1>compute smd/internal_energy command<a class="headerlink" href="#compute-smd-internal-energy-command" title="Permalink to this headline"></a></h1>

<span id="index-0"></span><h1>compute smd/internal/energy command<a class="headerlink" href="#compute-smd-internal-energy-command" title="Permalink to this headline"></a></h1>

<div class="section" id="syntax">

<h2>Syntax<a class="headerlink" href="#syntax" title="Permalink to this headline"></a></h2>

<div class="highlight-python"><div class="highlight"><pre>compute ID group-ID smd/internal_energy

<div class="highlight-python"><div class="highlight"><pre>compute ID group-ID smd/internal/energy

</pre></div>

</div>

<ul class="simple">

<li>ID, group-ID are documented in <a class="reference internal" href="compute.html"><em>compute</em></a> command</li>

<li>smd/smd/internal_energy = style name of this compute command</li>

<li>smd/smd/internal/energy = style name of this compute command</li>

</ul>

</div>

<div class="section" id="examples">

<h2>Examples<a class="headerlink" href="#examples" title="Permalink to this headline"></a></h2>

<div class="highlight-python"><div class="highlight"><pre>compute 1 all smd/internal_energy

<div class="highlight-python"><div class="highlight"><pre>compute 1 all smd/internal/energy

</pre></div>

</div>

</div>

<div class="section" id="description">

<h2>Description<a class="headerlink" href="#description" title="Permalink to this headline"></a></h2>

<p>Define a computation which outputs the per-particle enthalpy, i.e., the sum of potential energy and heat.</p>

<p>See <a class="reference external" href="USER/smd/SMD_LAMMPS_userguide.pdf">this PDF guide</a> to use Smooth Mach Dynamics in LAMMPS.</p>

<p>Define a computation which outputs the per-particle enthalpy, i.e.,

the sum of potential energy and heat.</p>

<p>See <a class="reference external" href="USER/smd/SMD_LAMMPS_userguide.pdf">this PDF guide</a> to use Smooth

Mach Dynamics in LAMMPS.</p>

<p><strong>Output Info:</strong></p>

<p>This compute calculates a per-particle vector, which can be accessed by

any command that uses per-particle values from a compute as input.  See

<a class="reference internal" href="Section_howto.html#howto-15"><span>How-to discussions, section 6.15</span></a>

for an overview of LAMMPS output options.</p>

<p>This compute calculates a per-particle vector, which can be accessed

by any command that uses per-particle values from a compute as input.

See <a class="reference internal" href="Section_howto.html#howto-15"><span>How-to discussions, section 6.15</span></a> for

an overview of LAMMPS output options.</p>

<p>The per-particle vector values will be given in <a class="reference internal" href="units.html"><em>units</em></a> of energy.</p>

</div>

<div class="section" id="restrictions">

<h2>Restrictions<a class="headerlink" href="#restrictions" title="Permalink to this headline"></a></h2>

<p>This compute is part of the USER-SMD package.  It is only enabled if

LAMMPS was built with that package.  See the <a class="reference internal" href="Section_start.html#start-3"><span>Making LAMMPS</span></a>

section for more info. This compute can only be used for particles which interact via the

updated Lagrangian or total Lagrangian SPH pair styles.</p>

LAMMPS was built with that package.  See the <a class="reference internal" href="Section_start.html#start-3"><span>Making LAMMPS</span></a> section for more info. This compute

can only be used for particles which interact via the updated

Lagrangian or total Lagrangian SPH pair styles.</p>

<p><strong>Related Commands:</strong></p>

</div>

<div class="section" id="default">

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