CapeOpenTwoPhaseProperty
CapeOpenTwoPhaseProperty returns the values of a specified two-phase property for a specified phase pair, at specified temperature, pressure and, for each phase, composition.
Syntax:
=CapeOpenTwoPhaseProperty(packageName,propertyName,phase1Name,phase2Name,T,P,phase1Composition,phase2Composition,compositionBasis,orientation,compositionDerivativePhase,transposed,normalizeComposition)
Arguments:
| packageName | Name of the package. |
| propertyName | The two-phase property name, as defined by CAPE-OPEN. See the ribbon for which two-phase properties are supported for the selected package. Two-phase properties can be a scalar, or a vector with a value for each compound, or a square matrix the size of the number of compounds. Matrices are by default represnted as a vector. Composition derivatives are w.r.t. the first phase, the second phase, or both. The unit of meaure can be obtained from CapeOpenUnitOfMeasure |
| phase1Name | The name of the first phase. See the ribbon for which phases are defined by the selected package. |
| phase2Name | The name of the second phase. |
| T | The temperature, in K. |
| P | The pressure, in Pa. |
| phase1Composition | The composition of the first phase, in mol/mol or kg/kg. |
| phase2Composition | The composition of the second phase, in mol/mol or kg/kg. |
| compositionBasis | Optional. The basis for composition. Can be "mole" (default), or "mass". |
| orientation | Optional. Orientation can be 'auto'=0 (default), 'horizontal'=1, 'vertical'=2, 'matrix'=3 (if applicable). |
| compositionDerivativePhase | Optional. Applies only to composition derivatives. Can be 'both'=0 (default), 'phase 1'=1, 'phase 2'=2 or one of the phase names. |
| transposed | Optional. Can be "0" or "false" (default), or "1" or "true". Applies to matrix properties in all orientations. |
| normalizeComposition | Optional. By default, the composition vectors are normalized. Value can be "0" or "false", or "1" or "true" (default). Turning off composition normalization can be useful for composition perturbation, but note that the Property Package may internally normalizat composition. |
Example:
=CapeOpenTwoPhaseProperty("myPropertyPackage","surfaceTension","vapor","liquid",298.15,101325,A3:A8,B3:B8)
Using the wizard
To use the wizard, select the two-phase property on the ribbon:
place the cursor at the insert point and click the Insert button:
Introduction
Function reference