Fluids, pipes and flow

Single-phase flow unless explicitly configured otherwise.

two of flow, diameter and mean velocity → remaining quantity

flow or velocity, diameter, density, viscosity → Reynolds number, laminar/turbulent screening

length, diameter, roughness, flow, fluid properties → frictional pressure drop, required head

loss coefficients, velocity, density → minor pressure drop, equivalent length

pressures, elevations, velocities, loss assumptions → energy balance, missing pressure or head

depth, density, surface pressure → absolute and gauge pressure

area, pressure difference, density, discharge coefficient → flow, coefficient sensitivity

tank geometry, outlet, initial head, discharge coefficient → level versus time, drain duration

viscosity, tube geometry, pressure difference → flow rate, wall shear estimate

velocity change, density, wave speed, closure time → pressure-surge screening

object volume, fluid density, object mass → buoyant force, net lift, submerged fraction

tube radius, wetting angle, density, surface tension → capillary height, pressure

upstream conditions, downstream pressure, throat, gas properties → choked-flow check, conditional mass flow