lmrPassiveTracers.xml

<?xml version="1.0" encoding="UTF-8"?>
<StGermainData xmlns="http://www.vpac.org/StGermain/XML_IO_Handler/Jun2003">
    
    <struct name="components" mergeType="merge">  

        <!-- === Passive Tracer geometries ==================================================== -->

        <struct name="surface_markers">
            <param name="Type"> PlaneParticleLayout </param>
            <param name="totalInitialParticles"> 6000 </param>
            <param name="planeAxis"> y </param>
            <param name="planeCoord"> topUpperCrust </param>
        </struct>

        <struct name="moho_markers">
            <param name="Type"> PlaneParticleLayout </param>
            <param name="totalInitialParticles"> 6000 </param>
            <param name="planeAxis"> y </param>
            <param name="planeCoord"> botLowerCrust </param>
        </struct>

        <!-- Additional example using a shape -->
        <!-- 
        <struct name="uppercrust_marker_shape"> 
            <param name="Type"> Box </param>
            <param name="startX"> minX </param>
            <param name="endX"> maxX </param>
            <param name="startY" units="km"> -20 </param>
            <param name="endY"> 0 </param>
            <param name="startZ"> minZ </param>
            <param name="endZ"> maxZ </param>
        </struct>

        <struct name="uppercrust_marker_PTL">
            <param name="Type"> WithinShapeParticleLayout </param>
            <param name="averageInitialParticlesPerCell"> 80 </param>
            <param name="shape"> uppercrust_marker_shape </param>
        </struct> --> 
        <!-- ==================================================================================== -->
        
        
        
        <!-- === Numerical implementation ======================================================= -->
        <struct name="user_passiveSwarmMovementHandler">
            <param name="Type"> ParticleMovementHandler </param>
        </struct>
        <struct name="user_ElementCellLayoutTracer">
            <param name="Type"> ElementCellLayout </param>
            <param name="Mesh"> linearMesh </param>
        </struct>
        

        <struct name="surface_marker_PTSwarm">
            <param name="Type"> MaterialPointsSwarm</param>
            <param name="CellLayout"> user_ElementCellLayoutTracer</param>
            <param name="ParticleLayout"> surface_markers </param>
            <param name="FiniteElement_Mesh"> linearMesh</param>
            <param name="FeMesh"> elementMesh </param>
            <list name="ParticleCommHandlers">
                <param> user_passiveSwarmMovementHandler </param>
            </list>
        </struct>
        <struct name="surface_marker_passiveTracerAdvect">
            <param name="Type"> SwarmAdvector </param>
            <param name="Swarm"> surface_marker_PTSwarm </param>
            <param name="TimeIntegrator"> timeIntegrator </param>
            <param name="VelocityField"> VelocityField </param>
            <param name="allowFallbackToFirstOrder"> True </param>
        </struct>

        <struct name="moho_marker_PTSwarm">
            <param name="Type"> MaterialPointsSwarm</param>
            <param name="CellLayout"> user_ElementCellLayoutTracer</param>
            <param name="ParticleLayout"> moho_markers </param>
            <!-- The following two options make the passive tracers have
                 a unique ID (stored as their materialIndex). Both must 
                 either be on or off at the same time -->
            <param name="uniqueIDs"> True </param>
            <param name="overrideMaterialCheck"> False </param>
            <param name="FiniteElement_Mesh"> linearMesh</param>
            <param name="FeMesh"> elementMesh </param>
            <list name="ParticleCommHandlers">
                <param> user_passiveSwarmMovementHandler </param>
            </list>
        </struct>
        <struct name="moho_marker_passiveTracerAdvect">
            <param name="Type"> SwarmAdvector </param>
            <param name="Swarm"> moho_marker_PTSwarm </param>
            <param name="TimeIntegrator"> timeIntegrator </param>
            <param name="VelocityField"> VelocityField </param>
            <param name="allowFallbackToFirstOrder"> True </param>
        </struct>
        
        <!-- ==================================================================================== -->
        
        
        
        <!-- === Output controls ================================================================ -->        
        <!-- NOTE: "Output controls" must come *after* the "Numerical implementation" XML -->
       
        <!-- Generates 1 file per tracer. Each file contains the timesteps
             and data for that tracer. NOTE: filename is as such:
             particle<cpu>.<localCPUid>.<struct name>.dat -->
        <!--
        <struct name="passiveswarmOutputs">
            <param name="Type"> Underworld_SwarmOutput </param>
            <param name="Swarm"> surface_marker_PTSwarm </param>
            <param name="mode"> PARTICLE_TRACE </param>
            <list name="FeVariables">
                <param> PressureField </param>
                <param> TemperatureField </param>
                <param> StrainRateInvariantField </param>
                <param> StressInvariantField </param>
            </list>
        </struct>
        -->
        
        <!-- ==================================================================================== -->
        
    </struct>
    
    
</StGermainData>