Fluid Mechanics Calculator

Specific Heat Capacity, often denoted as C​, is a measure of the amount of heat energy required to raise the temperature of a unit mass of a substance by one degree Celsius (or Kelvin). It quantifies the ability of a material to store thermal energy. The SI unit of Specific Heat Capacity is Joule per […]

The Aspect Ratio is a dimensionless parameter commonly used in fluid mechanics to describe the geometric shape of an object or a flow domain, particularly in the context of channels, ducts, or pipes. It quantifies the ratio of the width of the flow channel to its height or diameter. The Aspect Ratio is defined as

The Peclet Number (Pe) is a dimensionless parameter used in fluid mechanics to characterize the ratio of convective to diffusive mass transfer in a fluid flow. It helps in understanding the dominance of convective or diffusive transport processes. The Peclet Number is defined as the ratio of convective mass transfer rate to diffusive mass transfer

The Prandtl Number (Pr) is a dimensionless parameter used in fluid mechanics to characterize the ratio of momentum diffusivity to thermal diffusivity in a fluid. It provides information about the relative rates of momentum and heat transfer within the fluid. The Prandtl Number is defined as the ratio of momentum diffusivity (kinematic viscosity) to thermal

Euler’s Number (Eu) is a dimensionless parameter used in fluid mechanics to characterize the ratio of inertial forces to pressure forces in a fluid flow. It helps understand the relative importance of these forces in determining the behavior of the fluid flow. Euler’s Number is defined as the ratio of pressure to the kinetic energy

The Nusselt number (Nu) is a dimensionless number used to characterize the ratio of convective to conductive heat transfer across a fluid boundary layer. It provides insight into the efficiency of convective heat transfer compared to conductive heat transfer. The Nusselt number is defined as the ratio of convective heat transfer to conductive heat transfer

Strain rate (˙ε˙) is a measure of the rate at which deformation occurs in a fluid flow. It quantifies how quickly the fluid is being deformed or sheared as it flows. Strain rate is defined as the rate of change of velocity gradient within a fluid. The SI unit of strain rate is per second

The Bulk Modulus (K) is a measure of the fluid’s resistance to compression under pressure. It quantifies how much a fluid’s volume changes in response to a change in pressure while keeping the temperature constant. The Bulk Modulus is defined as the ratio of the change in pressure to the resulting fractional change in volume.

The Strouhal number (St) is a dimensionless quantity used to characterize unsteady fluid flows, particularly in the context of vortex shedding behind bluff bodies. It relates the frequency of oscillation of a fluid flow to the velocity and characteristic length scale of the flow. The Strouhal number relates the frequency of vortex shedding or oscillation

The Capillary number (Ca), also known as the Ca number, is a dimensionless quantity used in fluid mechanics to characterize the relative importance of viscous forces to surface tension forces in a fluid flow. It indicates whether viscous forces dominate over surface tension forces or vice versa. Where, Ca is the Capillary number, μ is