Laminar flow Calculator

In laminar flow, the fluid moves according to Newton’s law of viscosity, which states that the shear stress ($\tau$) between adjacent fluid layers is directly proportional to the velocity gradient (du/dy) perpendicular to the direction of flow and the dynamic viscosity ($\mu$) of the fluid:

Where,

• $\tau$ is the shear stress,
• $\mu$ is the dynamic viscosity of the fluid,
• du/dy​ is the velocity gradient perpendicular to the direction of flow.