Residence & reset time
Estimate a transit time and an ideal mixed-volume washout.
Calculator and method
YOUR INPUTS
Numeric inputs appear in a shared link. CSV data are kept out of the link.
Model calculation · not experimental data
ttransit = L/u τmix = V/Q fremaining = exp(−t/τmix)
MODEL & BOUNDARIES
Know what the result means.
Plug-flow transit and ideal well-mixed washout are different models. Charge, wet films, drainage and dead zones can recover more slowly. Measure the actual reset before a trial.
Version 1.0 · SI quantities are used internally, with displayed input units converted explicitly. Retain your assumptions with any exported result.
METHOD REFERENCES
Follow the definitions.
References support the physical relationships or measurement context. They do not validate any proposed weatherhill hardware.