From a01cfeaeba9219415d765ce68f2aa2f2ec49f370 Mon Sep 17 00:00:00 2001
From: awccoppFC <alexander.coppeans@flexcompute.com>
Date: Wed, 11 Feb 2026 11:18:04 -0500
Subject: [PATCH 1/2] removed validation check for write single file output
 surface output in paraview format

---
 flow360/component/simulation/outputs/outputs.py | 12 ------------
 .../simulation/params/test_validators_output.py | 17 +++++++----------
 2 files changed, 7 insertions(+), 22 deletions(-)

diff --git a/flow360/component/simulation/outputs/outputs.py b/flow360/component/simulation/outputs/outputs.py
index 3be0a5b97..77cda0064 100644
--- a/flow360/component/simulation/outputs/outputs.py
+++ b/flow360/component/simulation/outputs/outputs.py
@@ -449,18 +449,6 @@ def validate_imported_surface_output_fields(self, param_info: ParamsValidationIn
         )
         return self
 
-    @pd.model_validator(mode="after")
-    def ensure_write_single_file_supported(self):
-        """Ensure write_single_file is supported for chosen output format"""
-        if self.write_single_file:
-            if self.output_format == "paraview":
-                raise ValueError("write_single_file is only supported for Tecplot output format.")
-            if self.output_format == "both":
-                add_validation_warning(
-                    "write_single_file is only supported for Tecplot output format. "
-                    + "Paraview files will be still saved separately."
-                )
-        return self
 
 
 class TimeAverageSurfaceOutput(SurfaceOutput):
diff --git a/tests/simulation/params/test_validators_output.py b/tests/simulation/params/test_validators_output.py
index 71af8ffef..a29545379 100644
--- a/tests/simulation/params/test_validators_output.py
+++ b/tests/simulation/params/test_validators_output.py
@@ -1526,16 +1526,13 @@ def test_force_distribution_output_requires_wall_bc(mock_validation_context):
 
 
 def test_surface_output_write_single_file_validator():
-    with pytest.raises(
-        ValueError,
-        match=re.escape("write_single_file is only supported for Tecplot output format."),
-    ):
-        SurfaceOutput(
-            write_single_file=True,
-            entities=[Surface(name="noSlipWall")],
-            output_fields=["Cp"],
-            output_format="paraview",
-        )
+    # write_single_file is now supported for all output formats
+    SurfaceOutput(
+        write_single_file=True,
+        entities=[Surface(name="noSlipWall")],
+        output_fields=["Cp"],
+        output_format="paraview",
+    )
 
     SurfaceOutput(
         write_single_file=True,

From b401ae657afbc3688b5752f379785aa45b6c4f91 Mon Sep 17 00:00:00 2001
From: awccoppFC <alexander.coppeans@flexcompute.com>
Date: Wed, 11 Feb 2026 11:37:45 -0500
Subject: [PATCH 2/2] black formatting

---
 flow360/component/simulation/outputs/outputs.py | 1 -
 1 file changed, 1 deletion(-)

diff --git a/flow360/component/simulation/outputs/outputs.py b/flow360/component/simulation/outputs/outputs.py
index 77cda0064..3066775bb 100644
--- a/flow360/component/simulation/outputs/outputs.py
+++ b/flow360/component/simulation/outputs/outputs.py
@@ -450,7 +450,6 @@ def validate_imported_surface_output_fields(self, param_info: ParamsValidationIn
         return self
 
 
-
 class TimeAverageSurfaceOutput(SurfaceOutput):
     """
     :class:`TimeAverageSurfaceOutput` class for time average surface output settings.