diff --git a/examples/modules/heatfluid/examples/cabin/cabin2d.cfg b/examples/modules/heatfluid/examples/cabin/cabin2d.cfg
index 1428a833..ea425798 100755
--- a/examples/modules/heatfluid/examples/cabin/cabin2d.cfg
+++ b/examples/modules/heatfluid/examples/cabin/cabin2d.cfg
@@ -6,8 +6,6 @@ case.dimension=2
 [heat-fluid]
 filename=$cfgdir/cabin2d.json
 
-mesh.filename=$cfgdir/cabin2d.geo
-gmsh.hsize=0.05#0.03
 
 linearsystem-cst-update=false
 jacobian-linear-update=false
diff --git a/examples/modules/heatfluid/examples/cabin/cabin2d.json b/examples/modules/heatfluid/examples/cabin/cabin2d.json
index 0527220e..9444d9d4 100644
--- a/examples/modules/heatfluid/examples/cabin/cabin2d.json
+++ b/examples/modules/heatfluid/examples/cabin/cabin2d.json
@@ -2,14 +2,31 @@
 {
     "Name": "Fluid Mechanics",
     "ShortName":"Fluid",
+    "Metadata":
+    {
+        "version": "1",
+        "author": ["vincentchabannes","prudhomm","lberti","jobinhio"],
+        "date": "28/11/2022",
+        "references":[""]
+    },
     "Models":
     {
-        "use-model-name":1,
         "fluid":
         {
             "equations":"Navier-Stokes"
         }
     },
+    "Meshes":
+    {
+        "heatfluid":
+        {
+          "Import":
+          {
+            "filename":"$cfgdir/cabin2d.geo",
+            "hsize":"0.05"  // 0.03
+          }
+        }
+    }, 
     // tag::params[]
     "Parameters":
     {
@@ -32,17 +49,14 @@
     "BoundaryConditions":
     {
         // tag::bc-fluid[]
-        "velocity":
+        "fluid":
         {
-            "Dirichlet":
+            "velocity":
             {
-                "inlet" : {"expr":"{0,-Uin*(0.05-x)*(x+0.05)*400*(1-exp(-5*t)),0}:x:y:z:t:Uin"},
+                "inlet" : {"expr":"{0,-Uin*(0.05-x)*(x+0.05)*400*(1-exp(-5*t))}:x:y:z:t:Uin"},
                 "passengers" : {"expr":"{0,0}"},
                 "walls" : {"expr":"{0,0}"}
-            }
-        },
-        "fluid":
-        {
+            },
             "outlet":
             {
                 "outlet1":
@@ -58,9 +72,9 @@
         },
         // end::bc-fluid[]
         // tag::bc-t[]
-        "temperature":
+        "heat":
         {
-            "Dirichlet":
+            "temperature":
             {
                 "inlet" : {"expr":"20-(20-Tin)*(1-exp(-t)):t:Tin"}
                 //"passengers" : {"expr":"20+15*(1-exp(-t)):t"}
@@ -88,20 +102,19 @@
     // tag::exp[]
     "PostProcess":
     {
-        "use-model-name":1,
-        "heat-fluid":
+        // "use-model-name":1,
+        "heatfluid":
         {
             "Exports":
             {
                 "fields":["fluid.velocity","fluid.pressure","heat.temperature","fluid.pid"]
+            },
+            "fluid":
+            {
+            },
+            "heat":
+            {
             }
-        },
-        // end::exp[]
-        "fluid":
-        {
-        },
-        "heat":
-        {
         }
     }
 
diff --git a/examples/modules/heatfluid/examples/cabin/cabin3d.cfg b/examples/modules/heatfluid/examples/cabin/cabin3d.cfg
index 74c338f4..9cccb970 100755
--- a/examples/modules/heatfluid/examples/cabin/cabin3d.cfg
+++ b/examples/modules/heatfluid/examples/cabin/cabin3d.cfg
@@ -6,8 +6,6 @@ case.dimension=3
 [heat-fluid]
 filename=$cfgdir/cabin3d.json
 
-mesh.filename=$cfgdir/cabin3d.geo
-gmsh.hsize=0.05#0.02
 
 linearsystem-cst-update=false
 jacobian-linear-update=false
diff --git a/examples/modules/heatfluid/examples/cabin/cabin3d.json b/examples/modules/heatfluid/examples/cabin/cabin3d.json
index 94f5c0a4..c2d451ce 100644
--- a/examples/modules/heatfluid/examples/cabin/cabin3d.json
+++ b/examples/modules/heatfluid/examples/cabin/cabin3d.json
@@ -2,14 +2,31 @@
 {
     "Name": "Fluid Mechanics",
     "ShortName":"Fluid",
+    "Metadata":
+    {
+        "version": "1",
+        "author": ["vincentchabannes","prudhomm","lberti","jobinhio"],
+        "date": "28/11/2022",
+        "references":[""]
+    },
     "Models":
     {
-        "use-model-name":1,
         "fluid":
         {
             "equations":"Navier-Stokes"
         }
     },
+    "Meshes":
+    {
+        "heatfluid":
+        {
+          "Import":
+          {
+            "filename":"$cfgdir/cabin3d.geo",
+            "hsize":"0.2"  // 0.02 
+          }
+        }
+    }, 
     "Parameters":
     {
     },
@@ -25,17 +42,14 @@
     },
     "BoundaryConditions":
     {
-        "velocity":
+        "fluid":
         {
-            "Dirichlet":
+            "velocity":
             {
                 "inlet" : {"expr":"{0,-0.75*(0.05-x)*(x+0.05)*(0.4-z)*(z+0.4)*2500*(1-exp(-5*t)),0}:x:y:z:t"},
-                "passengers" : {"expr":"{0,0}"},
-                "walls" : {"expr":"{0,0}"}
-            }
-        },
-        "fluid":
-        {
+                "passengers" : {"expr":"{0,0,0}"},
+                "walls" : {"expr":"{0,0,0}"}
+            },
             "outlet":
             {
                 "outlet1":
@@ -49,9 +63,9 @@
 
             }
         },
-        "temperature":
+        "heat":
         {
-            "Dirichlet":
+            "temperature":
             {
                 "inlet" : {"expr":"20-5*(1-exp(-t)):t"}
                 //"passengers" : {"expr":"20+15*(1-exp(-t)):t"}
@@ -77,19 +91,19 @@
     },
     "PostProcess":
     {
-        "use-model-name":1,
-        "heat-fluid":
+        // "use-model-name":1,
+        "heatfluid":
         {
             "Exports":
             {
                 "fields":["fluid.velocity","fluid.pressure","heat.temperature","fluid.pid"]
+            },
+            "fluid":
+            {
+            },
+            "heat":
+            {
             }
-        },
-        "fluid":
-        {
-        },
-        "heat":
-        {
         }
     }
 
diff --git a/examples/modules/heatfluid/pages/cabin/README.adoc b/examples/modules/heatfluid/pages/cabin/README.adoc
index 1b806716..3b28b627 100644
--- a/examples/modules/heatfluid/pages/cabin/README.adoc
+++ b/examples/modules/heatfluid/pages/cabin/README.adoc
@@ -1,9 +1,11 @@
 = Aerothermal Flow in an Airplane Cabin
-JB Wahl <wahl@math.unistra.fr>
+JB Wahl <wahl@math.unistra.fr>, Christophe Prud'homme <christophe.prudhomme@cemosis.fr>
 :description: airflow and heat transfer in an airplane cabin
 :keywords: feelpp, heatfluid, cfd, heat-transfer, airplane
 :page-vtkjs: true
 :uri-data: https://github.com/feelpp/toolbox/blob/master/examples/modules/heatfluid/examples
+:imagesprefix: 
+ifdef::env-github,env-browser,env-vscode[:imagesprefix: ../../assets/images/]
 :page-tags: case
 :page-illustration: cabin/cabin3d.png
 :description: We simulate the airflow and heat transfer in an airplane cabin
@@ -149,7 +151,7 @@ image::cabin/cabin3d.png[100%]
 
 [source,json,,indent=0]
 ----
-include::{examplesdir}/cabin/cabin2d.json[tags=params]
+include::example$cabin/cabin2d.json[tags=params]
 ----
 
 == Materials
@@ -167,7 +169,7 @@ We consider a fluid in all the domain. We use a smooth approximation of the real
 
 [source,json,,indent=0]
 ----
-include::{examplesdir}/cabin/cabin2d.json[tags=fluid]
+include::example$cabin/cabin2d.json[tags=fluid]
 ----
 
 == Boundary Conditions
@@ -175,7 +177,7 @@ We impose a standard no-slip condition on all the solid walls and on the passeng
 
 [source,json,,indent=0]
 ----
-include::{examplesdir}/cabin/cabin2d.json[tags=bc-fluid]
+include::example$cabin/cabin2d.json[tags=bc-fluid]
 ----
 
 The passengers heat sources are modeled by a constant heat flux (Neumann). 
@@ -185,14 +187,14 @@ Finally, all the other boundaries are supposed to be insulated.
 
 [source,json,,indent=0]
 ----
-include::{examplesdir}/cabin/cabin2d.json[tags=bc-t]
+include::example$cabin/cabin2d.json[tags=bc-t]
 ----
 
 == Outputs
 We are intersting in the visualisation of the three fields : the velocity, the pressure and the temperature of the fluid. 
 [source,json,,indent=0]
 ----
-include::{examplesdir}/cabin/cabin2d.json[tags=exp]
+include::example$cabin/cabin2d.json[tags=exp]
 ----
 
 == Results
diff --git a/examples/modules/heatfluid/pages/cabin/heatfluid-information.adoc b/examples/modules/heatfluid/pages/cabin/heatfluid-information.adoc
new file mode 100644
index 00000000..b317c158
--- /dev/null
+++ b/examples/modules/heatfluid/pages/cabin/heatfluid-information.adoc
@@ -0,0 +1,1264 @@
+:sectnums:
+
+= Toolbox::heatfluid - Use Case Study 
+
+== Environment
+
+[cols="2"]
+|===
+<|prefix
+<|heat-fluid
+
+<|keyword
+<|heatfluid
+
+<|root repository
+<|/home/congo/feelppdb/toolboxes/heatfluid/cabin2d/np_1
+
+<|number of processus
+<|1
+|===
+
+
+== Materials Properties
+
+[cols="2"]
+|===
+<|number of materials
+<|1
+|===
+
+
+=== Material : Fluid
+
+[cols="5",options="header"]
+|===
+<|Name
+<|Expression
+<|Symbol
+<|Shape
+<|Components
+
+<|density
+<|1.0
+<|materials_Fluid_rho
+<|scalar
+<|
+
+<|dynamic-viscosity
+<|5.0E-4
+<|materials_Fluid_mu
+<|scalar
+<|
+
+<|specific-heat-capacity
+<|1000
+<|materials_Fluid_Cp
+<|scalar
+<|
+
+<|thermal-conductivity
+<|0.0145
+<|materials_Fluid_k
+<|scalar
+<|
+
+<|thermal-expansion
+<|0.00366
+<|materials_Fluid_beta
+<|scalar
+<|
+|===
+
+
+
+== Meshes
+
+=== Mesh : heatfluid
+
+[cols="2"]
+|===
+<|Discretization
+<|/Mesh/heatfluid
+
+<|filename
+<|/home/congo/feelppdb/toolboxes/heatfluid/cabin2d/np_1/heatfluid.mesh.msh
+|===
+
+
+==== Import configuration
+
+[cols="2"]
+|===
+<|geo-filename
+<|/home/congo/Document/toolbox/examples/modules/heatfluid/examples/cabin/cabin2d.geo
+
+<|hsize
+<|5.000000e-02
+
+<|generate-partitioning
+<|0
+|===
+
+
+==== Discretization
+
+[cols="2"]
+|===
+<|dim
+<|2
+
+<|h_average
+<|5.000727e-02
+
+<|h_max
+<|6.977512e-02
+
+<|h_min
+<|2.742344e-02
+
+<|n_elements
+<|4604
+
+<|n_faces
+<|7138
+
+<|n_partition
+<|1
+
+<|n_points
+<|2529
+
+<|order
+<|1
+
+<|real_dim
+<|2
+
+<|shape
+<|Simplex_2_1_2
+|===
+
+
+
+==== Fields
+
+
+
+
+== Algebraic Solver
+
+=== Backend
+
+[cols="2"]
+|===
+<|prefix
+<|heat-fluid
+
+<|type
+<|petsc
+|===
+
+
+=== KSP
+
+[cols="2"]
+|===
+<|atol
+<|1.000000e-50
+
+<|dtol
+<|1.000000e+05
+
+<|maxit
+<|1000
+
+<|reuse-prec
+<|0
+
+<|rtol
+<|1.000000e-08
+
+<|type
+<|gmres
+|===
+
+
+=== SNES
+
+[cols="2"]
+|===
+<|atol
+<|1.000000e-50
+
+<|maxit
+<|50
+
+<|reuse-jac
+<|0
+
+<|rtol
+<|1.000000e-08
+
+<|stol
+<|1.000000e-08
+|===
+
+
+=== KSP in SNES
+
+[cols="2"]
+|===
+<|maxit
+<|1000
+
+<|reuse-prec
+<|0
+
+<|rtol
+<|1.000000e-05
+|===
+
+
+=== PC
+
+[cols="2"]
+|===
+<|mat-solver-package
+<|mumps
+
+<|type
+<|lu
+|===
+
+
+
+== Toolbox Heat
+
+=== Environment
+
+[cols="2"]
+|===
+<|prefix
+<|heat-fluid.heat
+
+<|keyword
+<|heat
+
+<|root repository
+<|/home/congo/feelppdb/toolboxes/heatfluid/cabin2d/np_1
+
+<|number of processus
+<|1
+|===
+
+
+=== Physics
+
+==== heat
+
+===== default
+
+[cols="2"]
+|===
+<|modeling
+<|heat
+
+<|type
+<|heat
+
+<|name
+<|default
+|===
+
+
+[cols="2"]
+|===
+<|Equation
+<|u dot nabla T - div( k grad T ) = 0
+|===
+
+
+====== Convection
+
+[cols="2"]
+|===
+<|expr
+<|{fluid_U_0,fluid_U_1}
+|===
+
+
+====== Parameters
+
+[cols="5",options="header"]
+|===
+<|Name
+<|Expression
+<|Symbol
+<|Shape
+<|Components
+
+<|convection
+<|{fluid_U_0,fluid_U_1}
+<|physics_heat_default_convection
+<|vectorial [2]
+<a|
+[cols="2",options="header"]
+!===
+<!Symbol
+<!Indices
+
+<!physics_heat_default_convection_0
+<!0,0
+
+<!physics_heat_default_convection_1
+<!1,0
+!===
+
+|===
+
+
+
+
+
+=== Physics2
+
+[cols="2"]
+|===
+<|time mode
+<|Transient
+|===
+
+
+=== Boundary Conditions
+
+==== Temperature Imposed
+
+===== inlet
+
+[cols="2"]
+|===
+<|method
+<|elimination
+
+<|expr
+<|20-(-20+Tin)*(-1+exp(-t))
+
+<|markers
+<a|
+[cols="1"]
+!===
+<!inlet
+!===
+
+|===
+
+
+
+
+=== Meshes
+
+==== Mesh : heat
+
+[cols="2"]
+|===
+<|Discretization
+<|/Mesh/heatfluid
+
+<|filename
+<|/home/congo/feelppdb/toolboxes/heatfluid/cabin2d/np_1/heatfluid.mesh.msh
+|===
+
+
+===== Import configuration
+
+[cols="2"]
+|===
+<|geo-filename
+<|/home/congo/Document/toolbox/examples/modules/heatfluid/examples/cabin/cabin2d.geo
+
+<|hsize
+<|5.000000e-02
+
+<|generate-partitioning
+<|0
+|===
+
+
+===== Discretization
+
+[cols="2"]
+|===
+<|dim
+<|2
+
+<|h_average
+<|5.000727e-02
+
+<|h_max
+<|6.977512e-02
+
+<|h_min
+<|2.742344e-02
+
+<|n_elements
+<|4604
+
+<|n_faces
+<|7138
+
+<|n_partition
+<|1
+
+<|n_points
+<|2529
+
+<|order
+<|1
+
+<|real_dim
+<|2
+
+<|shape
+<|Simplex_2_1_2
+|===
+
+
+
+===== Fields
+
+
+
+
+=== Function Spaces
+
+==== Temperature
+
+[cols="2"]
+|===
+<|mesh
+<|/Mesh/heatfluid
+
+<|nSpace
+<|1
+|===
+
+
+===== Basis
+
+[cols="2"]
+|===
+<|is_continuous
+<|1
+
+<|nComponents
+<|1
+
+<|nComponents1
+<|1
+
+<|nComponents2
+<|1
+
+<|nLocalDof
+<|3
+
+<|name
+<|lagrange
+
+<|order
+<|1
+
+<|shape
+<|scalar
+|===
+
+
+===== Dof Table
+
+[cols="2"]
+|===
+<|nDof
+<|2529
+|===
+
+
+
+
+
+=== Fields
+
+==== temperature
+
+[cols="2"]
+|===
+<|base symbol
+<|T
+
+<|function space
+<|/FunctionSpace/object-0
+
+<|name
+<|temperature
+
+<|prefix symbol
+<|heat
+|===
+
+
+[cols="5",options="header"]
+|===
+<|Name
+<|Expression
+<|Symbol
+<|Shape
+<|Components
+
+<|eval of temperature
+<|idv(.)
+<|heat_T
+<|scalar
+<|
+
+<|norm2 of temperature
+<|norm2(.)
+<|heat_T_magnitude
+<|scalar
+<|
+
+<|grad of temperature
+<|gradv(.)
+<|heat_grad_T
+<|vectorial [2]
+<a|
+[cols="2",options="header"]
+!===
+<!Symbol
+<!Indices
+
+<!heat_grad_T_0
+<!0,0
+
+<!heat_grad_T_1
+<!0,1
+!===
+
+
+<|normal derivative of temperature
+<|dnv(.)
+<|heat_dn_T
+<|scalar
+<|
+|===
+
+
+
+
+=== Time Discretization
+
+[cols="2"]
+|===
+<|final time
+<|1.000000e+02
+
+<|initial time
+<|0.000000e+00
+
+<|time step
+<|1.000000e-01
+
+<|type
+<|BDF
+|===
+
+
+
+== Toolbox Fluid
+
+=== Environment
+
+[cols="2"]
+|===
+<|prefix
+<|heat-fluid.fluid
+
+<|keyword
+<|fluid
+
+<|root repository
+<|/home/congo/feelppdb/toolboxes/heatfluid/cabin2d/np_1
+
+<|number of processus
+<|1
+|===
+
+
+=== Physics
+
+==== fluid
+
+===== fluid
+
+[cols="2"]
+|===
+<|modeling
+<|fluid
+
+<|type
+<|fluid
+
+<|name
+<|fluid
+|===
+
+
+[cols="2"]
+|===
+<|equation
+<|Navier-Stokes
+
+<|formulation
+<|Convective
+|===
+
+
+
+
+
+=== Physics2
+
+[cols="2"]
+|===
+<|time mode
+<|Transient
+|===
+
+
+=== Boundary Conditions
+
+==== Velocity Imposed
+
+===== inlet
+
+[cols="2"]
+|===
+<|method
+<|elimination
+
+<|expr
+<|{0,-400*Uin*(-0.05+x)*(0.05+x)*(-1+exp(-5*t))}
+
+<|markers
+<a|
+[cols="1"]
+!===
+<!inlet
+!===
+
+|===
+
+
+===== passengers
+
+[cols="2"]
+|===
+<|method
+<|elimination
+
+<|expr
+<|{0,0}
+
+<|markers
+<a|
+[cols="1"]
+!===
+<!passengers
+!===
+
+|===
+
+
+===== walls
+
+[cols="2"]
+|===
+<|method
+<|elimination
+
+<|expr
+<|{0,0}
+
+<|markers
+<a|
+[cols="1"]
+!===
+<!walls
+!===
+
+|===
+
+
+
+
+=== Meshes
+
+==== Mesh : fluid
+
+[cols="2"]
+|===
+<|Discretization
+<|/Mesh/heatfluid
+
+<|filename
+<|/home/congo/feelppdb/toolboxes/heatfluid/cabin2d/np_1/heatfluid.mesh.msh
+|===
+
+
+===== Import configuration
+
+[cols="2"]
+|===
+<|geo-filename
+<|/home/congo/Document/toolbox/examples/modules/heatfluid/examples/cabin/cabin2d.geo
+
+<|hsize
+<|5.000000e-02
+
+<|generate-partitioning
+<|0
+|===
+
+
+===== Discretization
+
+[cols="2"]
+|===
+<|dim
+<|2
+
+<|h_average
+<|5.000727e-02
+
+<|h_max
+<|6.977512e-02
+
+<|h_min
+<|2.742344e-02
+
+<|n_elements
+<|4604
+
+<|n_faces
+<|7138
+
+<|n_partition
+<|1
+
+<|n_points
+<|2529
+
+<|order
+<|1
+
+<|real_dim
+<|2
+
+<|shape
+<|Simplex_2_1_2
+|===
+
+
+
+===== Fields
+
+
+
+
+=== Function Spaces
+
+==== Velocity
+
+[cols="2"]
+|===
+<|mesh
+<|/Mesh/heatfluid
+
+<|nSpace
+<|1
+|===
+
+
+===== Basis
+
+[cols="2"]
+|===
+<|is_continuous
+<|1
+
+<|nComponents
+<|2
+
+<|nComponents1
+<|2
+
+<|nComponents2
+<|1
+
+<|nLocalDof
+<|6
+
+<|name
+<|lagrange
+
+<|order
+<|2
+
+<|shape
+<|vectorial
+|===
+
+
+===== Dof Table
+
+[cols="2"]
+|===
+<|nDof
+<|19334
+|===
+
+
+
+
+==== Pressure
+
+[cols="2"]
+|===
+<|mesh
+<|/Mesh/heatfluid
+
+<|nSpace
+<|1
+|===
+
+
+===== Basis
+
+[cols="2"]
+|===
+<|is_continuous
+<|1
+
+<|nComponents
+<|1
+
+<|nComponents1
+<|1
+
+<|nComponents2
+<|1
+
+<|nLocalDof
+<|3
+
+<|name
+<|lagrange
+
+<|order
+<|1
+
+<|shape
+<|scalar
+|===
+
+
+===== Dof Table
+
+[cols="2"]
+|===
+<|nDof
+<|2529
+|===
+
+
+
+
+
+=== Fields
+
+==== last_velocity
+
+[cols="2"]
+|===
+<|base symbol
+<|last_u
+
+<|function space
+<|/FunctionSpace/object-1
+
+<|name
+<|last_velocity
+
+<|prefix symbol
+<|fluid
+|===
+
+
+[cols="5",options="header"]
+|===
+<|Name
+<|Expression
+<|Symbol
+<|Shape
+<|Components
+
+<|eval of last_velocity
+<|idv(.)
+<|fluid_last_u
+<|vectorial [2]
+<a|
+[cols="2",options="header"]
+!===
+<!Symbol
+<!Indices
+
+<!fluid_last_u_0
+<!0,0
+
+<!fluid_last_u_1
+<!1,0
+!===
+
+
+<|norm2 of last_velocity
+<|norm2(.)
+<|fluid_last_u_magnitude
+<|scalar
+<|
+
+<|grad of last_velocity
+<|gradv(.)
+<|fluid_grad_last_u
+<|tensor2 [2x2]
+<a|
+[cols="2",options="header"]
+!===
+<!Symbol
+<!Indices
+
+<!fluid_grad_last_u_00
+<!0,0
+
+<!fluid_grad_last_u_01
+<!0,1
+
+<!fluid_grad_last_u_10
+<!1,0
+
+<!fluid_grad_last_u_11
+<!1,1
+!===
+
+
+<|normal derivative of last_velocity
+<|dnv(.)
+<|fluid_dn_last_u
+<|vectorial [2]
+<a|
+[cols="2",options="header"]
+!===
+<!Symbol
+<!Indices
+
+<!fluid_dn_last_u_0
+<!0,0
+
+<!fluid_dn_last_u_1
+<!1,0
+!===
+
+
+<|curl of last_velocity
+<|curlv(.)
+<|fluid_curl_last_u
+<|scalar
+<|
+
+<|norm2 of curl of last_velocity
+<|norm2(curlv(.))
+<|fluid_curl_last_u_magnitude
+<|scalar
+<|
+
+<|div of last_velocity
+<|divv(.)
+<|fluid_div_last_u
+<|scalar
+<|
+|===
+
+
+
+==== pressure
+
+[cols="2"]
+|===
+<|base symbol
+<|P
+
+<|function space
+<|/FunctionSpace/object-2
+
+<|name
+<|pressure
+
+<|prefix symbol
+<|fluid
+|===
+
+
+[cols="5",options="header"]
+|===
+<|Name
+<|Expression
+<|Symbol
+<|Shape
+<|Components
+
+<|eval of pressure
+<|idv(.)
+<|fluid_P
+<|scalar
+<|
+|===
+
+
+
+==== velocity
+
+[cols="2"]
+|===
+<|base symbol
+<|U
+
+<|function space
+<|/FunctionSpace/object-1
+
+<|name
+<|velocity
+
+<|prefix symbol
+<|fluid
+|===
+
+
+[cols="5",options="header"]
+|===
+<|Name
+<|Expression
+<|Symbol
+<|Shape
+<|Components
+
+<|eval of velocity
+<|idv(.)
+<|fluid_U
+<|vectorial [2]
+<a|
+[cols="2",options="header"]
+!===
+<!Symbol
+<!Indices
+
+<!fluid_U_0
+<!0,0
+
+<!fluid_U_1
+<!1,0
+!===
+
+
+<|norm2 of velocity
+<|norm2(.)
+<|fluid_U_magnitude
+<|scalar
+<|
+
+<|grad of velocity
+<|gradv(.)
+<|fluid_grad_U
+<|tensor2 [2x2]
+<a|
+[cols="2",options="header"]
+!===
+<!Symbol
+<!Indices
+
+<!fluid_grad_U_00
+<!0,0
+
+<!fluid_grad_U_01
+<!0,1
+
+<!fluid_grad_U_10
+<!1,0
+
+<!fluid_grad_U_11
+<!1,1
+!===
+
+
+<|normal derivative of velocity
+<|dnv(.)
+<|fluid_dn_U
+<|vectorial [2]
+<a|
+[cols="2",options="header"]
+!===
+<!Symbol
+<!Indices
+
+<!fluid_dn_U_0
+<!0,0
+
+<!fluid_dn_U_1
+<!1,0
+!===
+
+
+<|curl of velocity
+<|curlv(.)
+<|fluid_curl_U
+<|scalar
+<|
+
+<|norm2 of curl of velocity
+<|norm2(curlv(.))
+<|fluid_curl_U_magnitude
+<|scalar
+<|
+
+<|div of velocity
+<|divv(.)
+<|fluid_div_U
+<|scalar
+<|
+|===
+
+
+
+==== velocity_extrapolated
+
+[cols="2"]
+|===
+<|base symbol
+<|beta_u
+
+<|function space
+<|/FunctionSpace/object-1
+
+<|name
+<|velocity_extrapolated
+
+<|prefix symbol
+<|fluid
+|===
+
+
+[cols="5",options="header"]
+|===
+<|Name
+<|Expression
+<|Symbol
+<|Shape
+<|Components
+
+<|eval of velocity_extrapolated
+<|idv(.)
+<|fluid_beta_u
+<|vectorial [2]
+<a|
+[cols="2",options="header"]
+!===
+<!Symbol
+<!Indices
+
+<!fluid_beta_u_0
+<!0,0
+
+<!fluid_beta_u_1
+<!1,0
+!===
+
+
+<|norm2 of velocity_extrapolated
+<|norm2(.)
+<|fluid_beta_u_magnitude
+<|scalar
+<|
+
+<|grad of velocity_extrapolated
+<|gradv(.)
+<|fluid_grad_beta_u
+<|tensor2 [2x2]
+<a|
+[cols="2",options="header"]
+!===
+<!Symbol
+<!Indices
+
+<!fluid_grad_beta_u_00
+<!0,0
+
+<!fluid_grad_beta_u_01
+<!0,1
+
+<!fluid_grad_beta_u_10
+<!1,0
+
+<!fluid_grad_beta_u_11
+<!1,1
+!===
+
+
+<|normal derivative of velocity_extrapolated
+<|dnv(.)
+<|fluid_dn_beta_u
+<|vectorial [2]
+<a|
+[cols="2",options="header"]
+!===
+<!Symbol
+<!Indices
+
+<!fluid_dn_beta_u_0
+<!0,0
+
+<!fluid_dn_beta_u_1
+<!1,0
+!===
+
+
+<|curl of velocity_extrapolated
+<|curlv(.)
+<|fluid_curl_beta_u
+<|scalar
+<|
+
+<|norm2 of curl of velocity_extrapolated
+<|norm2(curlv(.))
+<|fluid_curl_beta_u_magnitude
+<|scalar
+<|
+
+<|div of velocity_extrapolated
+<|divv(.)
+<|fluid_div_beta_u
+<|scalar
+<|
+|===
+
+
+
+
+
+