Description
Return approximate hydraulic resistance of one rectangular microchannel.
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 approximate hydraulic resistance of one rectangular microchannel.
When to use this tool
Use Microfluidic Hydraulic Resistance One Channel when checking the stated benign geometry, transport, phantom or material-basis term.
How to use the tool and how it works
- Enter viscosity, length, width, height. Use the units and conventions below.
- Run the tool. Correct any format, range, or cross-field input error before interpreting the output.
- Read resistance. Use the output convention below.
Return approximate hydraulic resistance of one rectangular microchannel. Require viscosity/length >= 0 and positive height <= width; resistance = 12*viscosity*length/[width*height³*(1-0.63*height/width)].1
| Input field | Meaning and units | Accepted input |
|---|---|---|
| viscosity | Viscosity | Required. Finite number; minimum 0. |
| length | Length | Required. Finite number; minimum 0. |
| width | Interval, bin, geometry or dimension width under the specific convention above. | Required. Finite number; strictly above 0. |
| height | Height | Required. Finite number; strictly above 0. |
| Output field | Interpretation | Returned shape |
|---|---|---|
| resistance | Pressure drop per volumetric flow; Pa s/m³ with compatible SI inputs. | Required. Finite number. |
{
"input": {
"viscosity": 1,
"length": 2,
"width": 4,
"height": 1
},
"output": {
"resistance": 7.121661721068249
}
}Limitations and assumptions
- This is a rectangular-channel laminar-flow approximation with compatible units; inlet effects, non-Newtonian behavior and a complete fluidic network are omitted.
- 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
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