FLOW / 016
Pipe & Duct Flow Calculator
Move between mass flow, volume flow and bulk velocity while keeping area, hydraulic diameter, Reynolds number and dynamic pressure consistent.
Use the calculation to challenge the CFD setup.
Internal-flow mistakes often begin with inconsistent area or characteristic length. This tool creates one common bulk-flow state before pressure-drop or turbulence calculations.
Define the reference scale. Use values that represent the actual engineering problem.
Calculate transparently. The tool exposes the governing relation and intermediate outputs.
Compare with the solver. Look for inconsistent definitions, units or modelling assumptions.
Test sensitivity. Important CFD conclusions should not depend on one arbitrary input or discretization choice.
Move from calculation to diagnosis.
Use the result as a benchmark, then follow the relevant Technical Case or consulting capability when the actual CFD model needs deeper judgement.