Velocity profile

Time-dependent laminar flow simulation using COMSOL Multiphysics
✅ Simulation Details:
Domain:
Width: 2.2 m, Height: 0.41 m, Cylinder Radius: 0.05 m
Inlet Flow Velocity: 1 m/s
Output Times: range(0,0.2,3.4)
✅ Flow and Boundary Conditions:
Inlet Velocity Profile:
u(y, t) = 6U * y * (H - y) / H² * step1(t)
Where U = 1 m/s, H = 0.41 m, and step1(t) ensures a smooth time-dependent flow initiation.
No-Slip Condition applied to all walls and the cylinder.
Pressure Outlet: Zero gauge pressure at the outlet.
✅ Material Properties:
Density: 1 kg/m³
Dynamic Viscosity: 1 × 10⁻³ Pa.s
✅ Mesh: Used a finer mesh
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