Recurring Slope Lineae Brine Flow Viscosity Consistency Check
Ideal steady Newtonian laminar film mean v=ρgsinθh²/(3μ), compared with independent inferred RSLfront speed. No proof RSLis brine, actual flow validity, porous/granular effects or life inference.
Description
An ideal laminar film model relates slope and film properties to mean flow speed.
An ideal laminar film model relates slope and film properties to mean flow speed.1
Agreement with an inferred front speed does not establish that recurring slope lineae are liquid brines. Use this tool to calculate the stated observation or conditional model from supplied measurements.
When to use Recurring Slope Lineae Brine Flow Viscosity Consistency Check
Use this tool to calculate the stated observation or conditional model from supplied measurements. Establish the observation or experimental context, reference/calibration source, unit basis and adopted model assumptions.
How to use Recurring Slope Lineae Brine Flow Viscosity Consistency Check and understand its results
- Establish the observation or experimental context, reference/calibration source, unit basis and adopted model assumptions.
- Enter callerBrineDensityKgPerCubicMeter, callerLocalGravityMetersPerSecondSquared, observedSlopeDegrees, callerFilmThicknessMeters, callerBrineDynamicViscosityPascalSeconds, independentlyInferredFrontSpeedMetersPerSecond, using the field meanings and rules below, then run the tool.
- Read result.conditionalLaminarMeanSpeedMetersPerSecond, result.signedInferredMinusModelSpeedMetersPerSecond. Interpret each field using the units, signs and evidence rules below.
- If input validation fails, correct the reported field and run again. Before applying a successful result, check the stated reference scope, units, assumptions and any retained unknown evidence.
| Input field | Meaning | Value type | Requirement |
|---|---|---|---|
| callerBrineDensityKgPerCubicMeter | Caller brine density kg per cubic meter | number | Required |
| callerLocalGravityMetersPerSecondSquared | Caller local gravity meters per second squared | number | Required |
| observedSlopeDegrees | Observed slope degrees | number | Required |
| callerFilmThicknessMeters | Caller film thickness meters | number | Required |
| callerBrineDynamicViscosityPascalSeconds | Caller brine dynamic viscosity pascal seconds | number | Required |
| independentlyInferredFrontSpeedMetersPerSecond | Independently inferred front speed meters per second | number | Required |
Require positive density, gravity, film thickness and viscosity in SI units, slope in inclusive 0–90 degrees, and nonnegative inferred front speed. Compute rho×g×sin(slope)×h²/(3mu), then inferred minus model speed. Zero slope returns zero model speed; no laminar-regime validation or brine identification is performed.
meanSpeedMPerS=density×gravity×sin(slopeDegrees×pi/180)×thicknessMeters²/(3×viscosityPaS); discrepancy=inferredSpeed−modelSpeed Apply the field units and exact ordering, boundary and evidence rules above.
| Output field | Meaning | Value type |
|---|---|---|
| result | Structured result containing the calculation or selected reference fields below | object |
| result.conditionalLaminarMeanSpeedMetersPerSecond | Conditional Laminar Mean Speed Meters Per Second; use the units, sign convention and calculation stated above | number |
| result.signedInferredMinusModelSpeedMetersPerSecond | Signed Inferred Minus Model Speed Meters Per Second; use the units, sign convention and calculation stated above | number |
{
"input": {
"callerBrineDensityKgPerCubicMeter": 1000,
"callerLocalGravityMetersPerSecondSquared": 3.7,
"observedSlopeDegrees": 30,
"callerFilmThicknessMeters": 0.001,
"callerBrineDynamicViscosityPascalSeconds": 0.001,
"independentlyInferredFrontSpeedMetersPerSecond": 0.5
},
"output": {
"result": {
"conditionalLaminarMeanSpeedMetersPerSecond": 0.6166666666666666,
"signedInferredMinusModelSpeedMetersPerSecond": -0.11666666666666659
}
}
}Limitations and assumptions
Agreement with an inferred front speed does not establish that recurring slope lineae are liquid brines. Results depend on the independently established measurement basis and the exact model assumptions above.
Every listed input requires an explicit value. Unexpected fields, incorrect value types, nonfinite numbers and sparse numeric arrays fail validation; tool-specific bounds and alignment rules apply as described above. Extremely large inputs or outputs can also be rejected. An input error is distinct from a successful calculation that reports a false comparison or retains unknown evidence.
Alternative or Complementary methods
Use Brine Water Activity aw Habitability Threshold 0.6 Checker to examine a related aspect: Water activity expresses an adopted thermodynamic measure on a fraction basis.
Use Perchlorate Soil Toxicity Mars Regolith Concentration Risk Classifier where its separate inputs and scope apply: Perchlorate measurements need a stated mass-fraction and sampling basis.
References
Similar or alternative tools
- Brine Water Activity aw Habitability Threshold 0.6 Checker
Water activity expresses an adopted thermodynamic measure on a fraction basis.
- Perchlorate Soil Toxicity Mars Regolith Concentration Risk Classifier
Perchlorate measurements need a stated mass-fraction and sampling basis.