Description
Return gross-area and open-pore fluxes.
Biological engineering calculations combine supplied geometry, material properties, transport and quantity bases. An ideal channel resistance, scaffold fraction or thermal time scale can be dimensionally consistent without establishing real process conditions, safe exposure or biological performance.
Return gross-area and open-pore fluxes.
When to use this tool
Use Porous Membrane Area Flux Term when checking the stated benign geometry, transport, phantom or material-basis term.
How to use the tool and how it works
- Enter flow, totalArea, openFraction. Use the units and conventions below.
- Run the tool. Correct any format, range, or cross-field input error before interpreting the output.
- Read grossFlux, poreFlux, openArea. Use the output convention below.
Return gross-area and open-pore fluxes. Require totalArea > 0 and openFraction in (0,1]; openArea = area*fraction, grossFlux = flow/area, poreFlux = flow/openArea.1
| Input field | Meaning and units | Accepted input |
|---|---|---|
| flow | Flow | Required. Finite number. |
| totalArea | Total Area | Required. Finite number; strictly above 0. |
| openFraction | Open Fraction | Required. Finite number; maximum 1; strictly above 0. |
| Output field | Interpretation | Returned shape |
|---|---|---|
| grossFlux | Gross Flux | Required. Finite number. |
| poreFlux | Signed flow/openArea, distinct from flow/totalArea. | Required. Finite number. |
| openArea | Open Area | Required. Finite number. |
{
"input": {
"flow": 10,
"totalArea": 5,
"openFraction": 0.2
},
"output": {
"grossFlux": 2,
"poreFlux": 10,
"openArea": 1
}
}Limitations and assumptions
- Flow may be signed and the open fraction is supplied; no velocity profile, permeability or actual membrane transport is solved.
- Inputs must satisfy both the field types and the cross-field conditions above. Invalid input causes an error; a successful false flag or documented placeholder is a different result.
- Numeric calculations use binary floating point unless exact decimal-integer arithmetic is explicitly stated. No hidden measurement tolerance or decimal rounding is added; nonfinite or out-of-contract results are rejected. Numeric signed-zero results are exported as zero.
Alternative or Complementary methods
Use verified properties, calibration and the complete applicable engineering model; assess actual laboratory/device conditions and biological suitability separately.
References
Similar or alternative tools
- Microfluidic Hydraulic Resistance One Channel
Return approximate hydraulic resistance of one rectangular microchannel.
- Bioreactor Shear Rate Gap Factor
Return gap-based shear rate and Newtonian stress.