Interface ThermodynamicModelSettings

All Superinterfaces:

Serializable

public interface ThermodynamicModelSettings
extends Serializable

ThermodynamicModelSettings interface.

Version:

$Id: $Id

Author:

Even Solbraa

Nested Class Summary

Nested Classes

Modifier and Type	Interface	Description
static final class	ThermodynamicModelSettings.Flags	Mutable per-thread flag holder.

Field Summary

Fields

Modifier and Type	Field	Description
static final boolean	DEFAULT_USE_WARM_START_K	When true, Component.init(type=0) preserves existing K-values instead of resetting them to the Wilson initial guess.
static final int	MAX_NUMBER_OF_COMPONENTS	Constant MAX_NUMBER_OF_COMPONENTS=200.
static final double	phaseFractionMinimumLimit	Constant phaseFractionMinimumLimit=1e-12.

Method Summary

Static Methods

Modifier and Type	Method	Description
static boolean	isUseWarmStartKValues()	Returns true if warm-start K-value preservation is enabled for the current thread.
static void	setUseWarmStartKValues(boolean enabled)	Enable or disable warm-start K-value preservation for the current thread.

Field Details

phaseFractionMinimumLimit

static final double phaseFractionMinimumLimit

Constant phaseFractionMinimumLimit=1e-12.

See Also:

• Constant Field Values

MAX_NUMBER_OF_COMPONENTS

static final int MAX_NUMBER_OF_COMPONENTS

Constant MAX_NUMBER_OF_COMPONENTS=200.

See Also:

• Constant Field Values

DEFAULT_USE_WARM_START_K

static final boolean DEFAULT_USE_WARM_START_K

When true, Component.init(type=0) preserves existing K-values instead of resetting them to the Wilson initial guess. Enables a warm-start that can speed up iterative flashes (PSflash, PHflash, dew/bubble point) and recycle loops by 2-3x, but may converge to numerically slightly different (though physically equivalent) solutions than the cold Wilson path. Default is false to preserve exact numerical reproducibility for regression baselines. Set via setUseWarmStartKValues(boolean) or the system property neqsim.warmStartK=true.

The flag is stored per-thread (ThreadLocal) so that concurrent flash calls do not interfere with each other's try/finally restoration. The process-wide initial value is read from the neqsim.warmStartK system property.

Method Details

isUseWarmStartKValues

static boolean isUseWarmStartKValues()

Returns true if warm-start K-value preservation is enabled for the current thread.

Returns:

warm-start flag

setUseWarmStartKValues

static void setUseWarmStartKValues(boolean enabled)

Enable or disable warm-start K-value preservation for the current thread.

Parameters:

enabled - true to preserve K-values across flash calls (faster, but may yield numerically slightly different converged solutions), false to always reset to the Wilson guess in Component.init(0) (exact baseline-compatible behavior).