# flowDirection

> The direction of the fluid flow as a 2D rotation. Combined with _flowSpeed to produce the flow velocity vector applied as force per unit submerged area at the submerged centroid.

## Definition

* **Type:** Property
* **Namespace:** [Unity.U2D.Physics](/engine/6000.6/script-reference/unity/u2d/physics.md)
* **Assembly:** UnityEngine.PhysicsCore2DModule

```csharp
public PhysicsRotate flowDirection { readonly get; set; }
```