Description
Map a face flux between supplied orientations.
A simulation update combines supplied states, fluxes, forces and time conventions. Local integration and interface terms can be evaluated independently, while a full solver must also supply consistent fields, boundary conditions, conservation and convergence behavior.
Map a face flux between supplied orientations.
When to use this tool
Use Periodic Boundary Face Orientation when checking one explicitly supplied integration, flux or lattice-population contribution.
How to use the tool and how it works
- Enter flux, sourceNormal, targetNormal. Use the units and conventions below.
- Run the tool. Correct any format, range, or cross-field input error before interpreting the output.
- Read mappedFlux, orientationFlips. Inspect orientationFlips before interpreting the associated values.
Map a face flux between supplied orientations. Require sourceNormal and targetNormal each +1 or -1; mappedFlux = flux*sourceNormal*targetNormal, orientationFlips reports unequal signs.1
| Input field | Meaning and units | Accepted input |
|---|---|---|
| flux | Flux | Required. Finite number. |
| sourceNormal | Source Normal | Required. Safe integer. |
| targetNormal | Target Normal | Required. Safe integer. |
| Output field | Interpretation | Returned shape |
|---|---|---|
| mappedFlux | Mapped Flux | Required. Finite number. |
| orientationFlips | Orientation Flips | Required. Boolean. |
{
"input": {
"flux": 5,
"sourceNormal": 1,
"targetNormal": -1
},
"output": {
"mappedFlux": -5,
"orientationFlips": true
}
}Limitations and assumptions
- Normal labels are supplied scalar signs, not geometric normals or a verified conservative mesh connection.
- 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 and validate the complete numerical method with its state initialization, boundary conditions and physical model for a reliable simulation.
References
Similar or alternative tools
- Pressure Projection One Gradient Term
Return one pressure-gradient velocity correction.
- Riemann Flux Supplied Wave Speed Factor
Return a local Lax-Friedrichs/Rusanov-style numerical flux.