Equilibria boundaries auxiliar module This module contains the auxiliar functions and subroutines used in the phase-boundaries calculations.
Detect if the system is close to a critical point.
| Type | Intent | Optional | Attributes | Name | ||
|---|---|---|---|---|---|---|
| integer, | intent(in) | :: | nc |
Number of components in the mixture. |
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| integer, | intent(in) | :: | np |
Number of main phases. |
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| integer, | intent(in) | :: | point |
Point number in the phase boundary. |
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| character(len=14), | intent(inout) | :: | kinds_x(np) |
Kinds of the main phases. |
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| character(len=14), | intent(inout) | :: | kind_w |
Kind of the incipient phase. |
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| logical, | intent(in) | :: | binary_stop |
If true, stop at the critical point if its a binary system. |
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| real(kind=pr), | intent(in) | :: | Xold(:) |
Old vector of variables. |
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| real(kind=pr), | intent(inout) | :: | X(:) |
Vector of variables. |
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| real(kind=pr), | intent(inout) | :: | dXdS(:) |
Sensitivity of the variables wrt the specification. |
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| integer, | intent(inout) | :: | ns |
Number of the specified variable. |
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| real(kind=pr), | intent(inout) | :: | dS |
Step size of the specification for the next point. |
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| real(kind=pr), | intent(inout) | :: | S |
Specification value. |
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| logical, | intent(out) | :: | found_critical |
If true, a critical point was found. |
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| real(kind=pr) | :: | Xc(size(X)) |
Vector of variables at the critical point. |
Calculate the fluid composition based on an amount of addition of second fluid.
| Type | Intent | Optional | Attributes | Name | ||
|---|---|---|---|---|---|---|
| real(kind=pr), | intent(in) | :: | alpha |
Addition percentaje |
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| real(kind=pr), | intent(in) | :: | z_0(:) | |||
| real(kind=pr), | intent(in) | :: | z_inj(:) | |||
| real(kind=pr), | intent(out) | :: | z(size(z_0)) |
New composition |
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| real(kind=pr), | intent(out), | optional | :: | dzda(size(z_0)) |
Derivative wrt |