diff --git a/Cassiopee/Apps/test/Quarantine/FastIBMHybrideCurvi_t1.py b/Cassiopee/Apps/test/FastIBMHybrideCurvi_t1.py
similarity index 100%
rename from Cassiopee/Apps/test/Quarantine/FastIBMHybrideCurvi_t1.py
rename to Cassiopee/Apps/test/FastIBMHybrideCurvi_t1.py
diff --git a/Cassiopee/Apps/test/IBMrotation.py b/Cassiopee/Apps/test/IBMrotation.py
new file mode 100644
index 000000000..720f8a4c4
--- /dev/null
+++ b/Cassiopee/Apps/test/IBMrotation.py
@@ -0,0 +1,182 @@
+# case - cylinder - IBM rotation - generate mesh and connectivity tree
+import Converter.PyTree as C
+import Generator.PyTree as G
+import Converter.Internal as Internal
+import Connector.PyTree as X
+import Transform.PyTree as T
+import Geom.PyTree as D
+import Initiator.PyTree as I
+import Generator.IBM as G_IBM
+import Geom.IBM as D_IBM
+import Connector.IBM as X_IBM
+import RigidMotion.PyTree as R
+import Connector.Mpi as Xmpi
+import KCore.test as test
+import math, os
+
+LOCAL = test.getLocal()
+
+## =======================
+## =======================
+TInf = 298.15
+UInf = 0.0001
+rad  = 0.0005
+diam = rad*2
+RoInf= 1.18
+PInf = 101325
+
+# necessaire pour les IBM
+Model        = 'NSLaminar'
+dimPb        = 2
+frontType    = 1
+vmin         = 11
+
+# extension du maillage near-body jusqu au niveau de raffinement lvl_nearbody
+dfar_nb  = 2*diam/2
+dfar_ext = 5*diam/2
+offset   = dfar_nb*0.25
+
+rpm  = 100
+OMG  = rpm*2*math.pi/60
+LInf = diam*0.5
+TInf = 298.15
+aref = math.sqrt(1.4*287.058*298.15)
+Vtip = OMG*LInf
+Mtip = OMG*LInf/aref
+Re   = RoInf*Vtip*diam/1.85e-05
+## =======================
+## =======================
+
+##CREATING GEOMETRY
+densityOfPts = 200
+a = D.circle((0.,0.,0.), diam*0.5, N=densityOfPts)
+  
+C._initVars(a, '{CoordinateZ}=0')
+tb           = C.newPyTree(["CYLINDER"]); tb[2][1][2] = Internal.getZones(a)
+snear        = 5.0e-5
+ModelTmp     = Model
+D_IBM._setSnear(tb, snear)
+D_IBM._setDfar(tb, dfar_ext)
+D_IBM._setIBCType(tb,"noslip")
+C._addState(tb, adim='dim1', UInf=UInf, TInf=TInf, PInf=PInf, LInf=diam,EquationDimension=dimPb, GoverningEquations=ModelTmp)
+    
+##CREATING OVERSET IBM MESH AROUND GEOMETRY
+dfars=[]
+for z in Internal.getZones(tb): dfars.append(dfar_nb)
+t_ibm = G_IBM.generateIBMMesh(tb, vmin=vmin, dfars=dfars, dimPb=2, expand=2, ext=3)
+
+R._setPrescribedMotion3(t_ibm ,'rot', axis_pnt=(0.,0.,0.), axis_vct=(0,0,1),omega=-OMG)
+t_ibm[2][1][0]='CARTESIAN_NEARBODY'
+
+t_out =None
+tc_out=None
+t_ibm, tc_ibm = X_IBM.prepareIBMData(tb, t_out, tc_out, t_ibm, frontType=frontType, cartesian=False)
+
+C._rmBCOfType(t_ibm,'BCFarfield')
+C._fillEmptyBCWith(t_ibm,'dummy','BCExtrapolate', dim=dimPb)
+
+##GETTING EDGE OF OVERSET IBM MESH --> NEW GEOMETRY FOR BACKGROUND
+ovs = C.extractBCOfType(t_ibm,'BCExtrapolate')
+
+G._getVolumeMap(ovs)    
+DZ = C.getMaxValue(ovs,'CoordinateZ')-C.getMinValue(ovs,'CoordinateZ')
+C._initVars(ovs,'{centers:vol}={centers:vol}*%g'%(1./DZ))
+ovs = T.subzone(ovs,(1,1,1),(-1,1,1))
+C._initVars(ovs,'CoordinateZ',0)
+ovs=C.convertArray2Hexa(ovs)
+ovs=T.join(ovs)
+
+for zs in Internal.getZones(ovs):
+    snear = C.getMaxValue(zs,'centers:vol')
+    snear = snear**(dimPb-1)
+    D_IBM._setSnear(zs, snear)
+    D_IBM._setDfar(zs, dfar_ext)
+C._addState(ovs, adim='dim1', UInf=UInf, TInf=TInf, PInf=PInf, LInf=diam,EquationDimension=dimPb, GoverningEquations=Model)
+tb_off = C.newPyTree(['Base', ovs])
+
+##CREATING BACKGROUND CARTESIAN MESH
+vmin    = 21
+dfars=[]
+for z in Internal.getZones(tb_off): dfars.append(dfar_ext)
+t_off = G_IBM.generateIBMMesh(tb_off, vmin=vmin, dfars=dfars, dimPb=2, expand=2, ext=3)
+
+t_off[2][1][0]='CARTESIAN_OFFBODY'
+X._applyBCOverlaps(t_off,depth=2,loc='centers')
+tc_off = C.node2Center(t_off)
+
+cartesian=True
+if Internal.getNodeFromType(t_off, "GridConnectivity1to1_t") is not None:
+    Xmpi._setInterpData(t_off, tc_off, nature=1, loc='centers', storage='inverse', sameName=1, dim=dimPb, itype='abutting', order=2, cartesian=cartesian)
+Xmpi._setInterpData(t_off, tc_off, nature=1, loc='centers', storage='inverse', sameName=1, sameBase=1, dim=dimPb, itype='chimera', order=2, cartesian=cartesian)
+    
+
+# ASSEMBLY
+for a in [t_off, tc_off, t_ibm, tc_ibm]:
+    C._addState(a, adim='dim1', UInf=UInf, TInf=TInf, PInf=PInf, LInf=diam,EquationDimension=dimPb, GoverningEquations=Model)
+for t in [t_off,t_ibm]:
+    C._initVars(t,"{centers:cellN#Static}={centers:cellN}")
+    C._initVars(t,'centers:cellN',1.)
+for var in ['cellN#Static',"cellN"]:
+    C._cpVars(t_off,"centers:%s"%var,tc_off,var)
+    C._cpVars(t_ibm,"centers:%s"%var,tc_ibm,var)
+
+R._setPrescribedMotion3(t_ibm ,'rot', axis_pnt=(0.,0.,0.), axis_vct=(0,0,1),omega=-OMG)
+R._setPrescribedMotion3(tc_ibm,'rot', axis_pnt=(0.,0.,0.), axis_vct=(0,0,1),omega=-OMG)
+
+
+## BLANKING OF BACKGROUND MESH -- USING AN OFFSET OF IMMERSED GEOMETRY 
+blankingBody= D.offsetSurface(Internal.getZones(tb_off), offset=-offset, pointsPerUnitLength=20000, algo=0, dim=dimPb)
+tb_blank    = C.newPyTree(["BODY"]); tb_blank[2][1][2] = Internal.getZones(blankingBody)
+R._setPrescribedMotion3(tb_blank ,'rot', axis_pnt=(0.,0.,0.), axis_vct=(0,0,1),omega=-OMG)
+tb_blank = G.close(tb_blank,1.e-8)
+
+if dimPb==2:
+    zl = Internal.getZones(t_ibm)[0]
+    DZ = C.getMaxValue(zl,'CoordinateZ')-C.getMinValue(zl,'CoordinateZ')
+    T._addkplane(tb_blank)
+    T._contract(tb_blank,  (0,0,0), (1,0,0), (0,1,0), DZ)
+R._copyGrid2GridInit(tb_blank)    
+C.convertPyTree2File(tb_blank, LOCAL+'/bodiesBlankRotComp.cgns')
+
+# suppress static BCOverlap in t_off
+C._rmBCOfType(t_off, 'BCFarfield')
+C._fillEmptyBCWith(t_off, 'nref', 'BCFarfield', dim=dimPb)
+C._rmBCOfType(t_off, 'BCOverlap')
+# t_ibm
+C._fillEmptyBCWith(t_ibm,'dummy','BCExtrapolate',dim=dimPb)# corners
+C._rmBCOfType(t_ibm, 'BCOverlap')
+C._fillEmptyBCWith(t_ibm, 'dummy', 'DUMMY', dim=dimPb) # overlap static
+C._rmBCOfType(t_ibm, 'BCExtrapolate')
+C._fillEmptyBCWith(t_ibm, 'ovst_dyn', 'BCOverlap', dim=dimPb)
+C._rmBCOfType(t_ibm, 'DUMMY')
+
+# Init field
+vars = ['Density', 'MomentumX', 'MomentumY', 'MomentumZ', 'EnergyStagnationDensity']
+C._initVars(t_off, "centers:TurbulentDistance", 1e3)
+
+t  = C.mergeTrees(t_ibm, t_off)
+tc = C.mergeTrees(tc_ibm, tc_off)
+
+for b in Internal.getBases(t):
+    state = Internal.getNodeFromType(b, 'ReferenceState_t')
+    #Model = Internal.getNodeFromName(b, 'GoverningEquations')
+    #Model = Internal.getValue(Model)
+    if Model == 'NSTurbulent': allvars = vars + ['TurbulentSANuTildeDensity']
+    else: allvars = vars
+    for v in allvars:
+        node = Internal.getNodeFromName(state, v)
+        if node is not None:
+            val = float(node[1][0])
+            C._initVars(b, 'centers:'+v, val)
+            
+R._copyGrid2GridInit(t)
+C.convertPyTree2File(t, LOCAL+'/tRotComp.cgns')
+R._copyGrid2GridInit(tc)
+C.convertPyTree2File(tc, LOCAL+'/tcRotComp.cgns')
+
+Internal._rmNodesByName(t, '.Solver#Param')
+Internal._rmNodesByName(t, '.Solver#ownData')
+Internal._rmNodesByName(tc, '.Solver#Param')
+Internal._rmNodesByName(tc, '.Solver#ownData')
+
+
diff --git a/Cassiopee/Apps/test/Quarantine/IBMrotationCompute_t1.py b/Cassiopee/Apps/test/IBMrotationCompute_t1.py
similarity index 96%
rename from Cassiopee/Apps/test/Quarantine/IBMrotationCompute_t1.py
rename to Cassiopee/Apps/test/IBMrotationCompute_t1.py
index 446a54440..93f46bb5c 100644
--- a/Cassiopee/Apps/test/Quarantine/IBMrotationCompute_t1.py
+++ b/Cassiopee/Apps/test/IBMrotationCompute_t1.py
@@ -10,11 +10,13 @@
 import RigidMotion.PyTree as R
 import Transform.PyTree as T
 import KCore.test as test
-import math
+import math, os
 import numpy
 
 LOCAL = test.getLocal()
 
+from IBMrotation import *
+
 ## =======================
 ## =======================
 UInf = 0.0001
@@ -46,8 +48,8 @@
 numz2['scheme'] = 'ausmpred'
 
 # load t, tc
-fileTIn ='/t.cgns'
-fileTcIn='/tc.cgns'
+fileTIn ='/tRotComp.cgns'
+fileTcIn='/tcRotComp.cgns'
 t,tc,ts,graph = Fast.load(LOCAL+fileTIn,LOCAL+fileTcIn)
 baseNameIBM   ='CARTESIAN_NEARBODY'
 baseNameBKGD  ='CARTESIAN_OFFBODY'
@@ -63,7 +65,7 @@
 
 
 # load bodies
-tb = C.convertFile2PyTree(LOCAL+'/bodiesBlank.cgns')
+tb = C.convertFile2PyTree(LOCAL+'/bodiesBlankRotComp.cgns')
 
 # Warmup
 it0 = 0; time0 = 0.
@@ -200,3 +202,6 @@
 #Cmpi.convertPyTree2File(t , LOCAL+'/t_restart.cgns')
 #Cmpi.convertPyTree2File(tc, LOCAL+'/tc_restart.cgns')
 
+os.remove(LOCAL+'/tRotComp.cgns')
+os.remove(LOCAL+'/tcRotComp.cgns')
+os.remove(LOCAL+'/bodiesBlankRotComp.cgns')