"LandauXYVxVy is not numerically tested"

Closes #230

See merge request gysela-developpers/gyselalibxx!525

--------------------------------------------

simulations/geometryXYVxVy/landau/params.yaml.hpp

@@ -5,16 +5,16 @@
 constexpr char const* const params_yaml = R"PDI_CFG(SplineMesh:
   x_min: 0.0
   x_max: 12.56637061435917
-  x_ncells: 64
+  x_ncells: 32
   y_min: 0.0
   y_max: 12.56637061435917
-  y_ncells : 64
+  y_ncells : 32
   vx_min: -6.0
   vx_max: +6.0
-  vx_ncells: 127
+  vx_ncells: 34
   vy_min: -6.0
   vy_max: +6.0
-  vy_ncells: 127
+  vy_ncells: 34
 
 SpeciesInfo:
 - charge: -1
@@ -26,9 +26,9 @@ constexpr char const* const params_yaml = R"PDI_CFG(SplineMesh:
   perturb_mode: 1
 
 Algorithm:
-  deltat: 0.0625
-  nbiter: 480
+  deltat: 0.12
+  nbiter: 140
 
 Output:
-  time_diag: 0.25
-)PDI_CFG";
+  time_diag: 0.24
+)PDI_CFG";

simulations/geometryXYVxVy/landau/ref_simulation/landau_ref.yaml

@@ -0,0 +1,34 @@
+// SPDX-License-Identifier: MIT
+
+#pragma once
+
+constexpr char const* const params_yaml = R"PDI_CFG(SplineMesh:
+  x_min: 0.0
+  x_max: 12.56637061435917
+  x_ncells: 64
+  y_min: 0.0
+  y_max: 12.56637061435917
+  y_ncells : 64
+  vx_min: -6.0
+  vx_max: +6.0
+  vx_ncells: 127
+  vy_min: -6.0
+  vy_max: +6.0
+  vy_ncells: 127
+
+SpeciesInfo:
+- charge: -1
+  mass: 0.0005
+  density_eq: 1.
+  temperature_eq: 1.
+  mean_velocity_eq: 0.
+  perturb_amplitude: 0.05
+  perturb_mode: 1
+
+Algorithm:
+  deltat: 0.0625
+  nbiter: 480
+
+Output:
+  time_diag: 0.25
+)PDI_CFG";