diff --git a/tutorials/postprocessPhasicFlow/segregation/caseSetup/interaction b/tutorials/postprocessPhasicFlow/segregation/caseSetup/interaction
index 50ab5159..a3a1dde7 100755
--- a/tutorials/postprocessPhasicFlow/segregation/caseSetup/interaction
+++ b/tutorials/postprocessPhasicFlow/segregation/caseSetup/interaction
@@ -34,16 +34,16 @@ model
 
 contactSearch
 {
-   method         NBS;           // method for broad search particle-particle
-   wallMapping    cellsSimple;   // method for broad search particle-wall 
+   method         multiGridNBS;           // method for broad search particle-particle
+   wallMapping    cellMapping;   // method for broad search particle-wall 
 
-   NBSInfo
+   multiGridNBSInfo
    {
       updateFrequency 10;        // each 10 timesteps, update neighbor list 
       sizeRatio      1.1;        // bounding box size to particle diameter (max)
    }
 
-   cellsSimpleInfo
+   cellMappingInfo
    {
       updateFrequency 10;        // each 10 timesteps, update neighbor list  
       cellExtent     0.6;        // bounding box for particle-wall search (> 0.5)
diff --git a/tutorials/sphereGranFlow/binarySystemOfParticles/caseSetup/interaction b/tutorials/sphereGranFlow/binarySystemOfParticles/caseSetup/interaction
index 50ab5159..a3a1dde7 100755
--- a/tutorials/sphereGranFlow/binarySystemOfParticles/caseSetup/interaction
+++ b/tutorials/sphereGranFlow/binarySystemOfParticles/caseSetup/interaction
@@ -34,16 +34,16 @@ model
 
 contactSearch
 {
-   method         NBS;           // method for broad search particle-particle
-   wallMapping    cellsSimple;   // method for broad search particle-wall 
+   method         multiGridNBS;           // method for broad search particle-particle
+   wallMapping    cellMapping;   // method for broad search particle-wall 
 
-   NBSInfo
+   multiGridNBSInfo
    {
       updateFrequency 10;        // each 10 timesteps, update neighbor list 
       sizeRatio      1.1;        // bounding box size to particle diameter (max)
    }
 
-   cellsSimpleInfo
+   cellMappingInfo
    {
       updateFrequency 10;        // each 10 timesteps, update neighbor list  
       cellExtent     0.6;        // bounding box for particle-wall search (> 0.5)
diff --git a/tutorials/sphereGranFlow/layeredSiloFilling/caseSetup/interaction b/tutorials/sphereGranFlow/layeredSiloFilling/caseSetup/interaction
index 3b80d6ac..cea5227c 100755
--- a/tutorials/sphereGranFlow/layeredSiloFilling/caseSetup/interaction
+++ b/tutorials/sphereGranFlow/layeredSiloFilling/caseSetup/interaction
@@ -55,7 +55,7 @@ model
 contactSearch
 {
    method         NBS;           // method for broad search particle-particle
-   wallMapping    cellsSimple;   // method for broad search particle-wall 
+   wallMapping    cellMapping;   // method for broad search particle-wall 
 
    NBSInfo
    {
@@ -63,7 +63,7 @@ contactSearch
       sizeRatio      1.1;        // bounding box size to particle diameter (max)
    }
 
-   cellsSimpleInfo
+   cellMappingInfo
    {
       updateFrequency 10;        // each 20 timesteps, update neighbor list  
       cellExtent     0.6;        // bounding box for particle-wall search (> 0.5)
diff --git a/tutorials/sphereGranFlow/rotatingDrumMedium/caseSetup/interaction b/tutorials/sphereGranFlow/rotatingDrumMedium/caseSetup/interaction
index bb58f045..5b063862 100755
--- a/tutorials/sphereGranFlow/rotatingDrumMedium/caseSetup/interaction
+++ b/tutorials/sphereGranFlow/rotatingDrumMedium/caseSetup/interaction
@@ -47,7 +47,7 @@ model
 contactSearch
 {
    method         NBS;           // method for broad search particle-particle
-   wallMapping    cellsSimple;   // method for broad search particle-wall 
+   wallMapping    cellMapping;   // method for broad search particle-wall 
 
    NBSInfo
    {
@@ -55,7 +55,7 @@ contactSearch
       sizeRatio      1.1;        // bounding box size to particle diameter (max)
    }
 
-   cellsSimpleInfo
+   cellMappingInfo
    {
       updateFrequency 20;        // each 20 timesteps, update neighbor list  
       cellExtent     0.6;        // bounding box for particle-wall search (> 0.5)
diff --git a/tutorials/sphereGranFlow/rotatingDrumSmall/caseSetup/interaction b/tutorials/sphereGranFlow/rotatingDrumSmall/caseSetup/interaction
index fd176850..292d4722 100755
--- a/tutorials/sphereGranFlow/rotatingDrumSmall/caseSetup/interaction
+++ b/tutorials/sphereGranFlow/rotatingDrumSmall/caseSetup/interaction
@@ -35,7 +35,7 @@ model
 contactSearch
 {
    method         NBS;           // method for broad search particle-particle
-   wallMapping    cellsSimple;   // method for broad search particle-wall 
+   wallMapping    cellMapping;   // method for broad search particle-wall 
 
    NBSInfo
    {
@@ -43,7 +43,7 @@ contactSearch
       sizeRatio      1.1;        // bounding box size to particle diameter (max)
    }
 
-   cellsSimpleInfo
+   cellMappingInfo
    {
       updateFrequency 20;        // each 20 timesteps, update neighbor list  
       cellExtent     0.7;        // bounding box for particle-wall search (> 0.5)