nce.piping

Class PipePressDropMSC

java.lang.Object

nce.piping.PipePressDropMSC

public class PipePressDropMSC
extends java.lang.Object

Evaluation of pressure drop for incompressible two phase flow in a pipe using the method by Muller-Steinhagen-Heck correlation The pressure drop of the total flow alone in the pipe shall be first evaluated using liquid phase properties. The pressure drop of the two phase stream is obtained multiplying by the two phase multiplier.

Version:

20160224

Author:

Carlo Tegano

Constructor Summary

Constructors

Constructor and Description
PipePressDropMSC()

Method Summary

Methods

Modifier and Type	Method and Description
double	evalSlipRatio(double vDens, double lDens, double vVisc, double lVisc, double x) Evaluates two phase slip ratio using the method of Lockhart-Martinelli with the two phase multiplier from the method of Muller-Steinhagen-Heck
double	evalTwoPhaseDensity(double vDens, double lDens, double vVisc, double lVisc, double x) General method for the evaluation of two phase density using fraction.
double	evalTwoPhaseMultiplier() Evaluates two phase multiplier for the field pStream, the vapor liquid stream associated to pipe field
double	evalVoidFrac(double vDens, double lDens, double vVisc, double lVisc, double x) General method for the evaluation of void fraction.
double	getLockMartParameter() Returns computed Lockhart - Martinelli parameter
double	getTwoPhaseMultiplier()
void	init(Pipe pipe) Initialization of two phase pressure drop solver
void	setTwoPhaseMultiplier(double tpMult)
void	transferOutputToPipe()

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

PipePressDropMSC

public PipePressDropMSC()

Method Detail

evalTwoPhaseMultiplier

public double evalTwoPhaseMultiplier()

Evaluates two phase multiplier for the field pStream, the vapor liquid stream associated to pipe field

evalSlipRatio

public double evalSlipRatio(double vDens,
                   double lDens,
                   double vVisc,
                   double lVisc,
                   double x)

Evaluates two phase slip ratio using the method of Lockhart-Martinelli with the two phase multiplier from the method of Muller-Steinhagen-Heck

init

public void init(Pipe pipe)

Initialization of two phase pressure drop solver

evalTwoPhaseDensity

public double evalTwoPhaseDensity(double vDens,
                         double lDens,
                         double vVisc,
                         double lVisc,
                         double x)

General method for the evaluation of two phase density using fraction. Can be customized by overriding evalSlipRatio()

evalVoidFrac

public double evalVoidFrac(double vDens,
                  double lDens,
                  double vVisc,
                  double lVisc,
                  double x)

General method for the evaluation of void fraction. Can be customized by overriding evalSlipRatio()

transferOutputToPipe

public void transferOutputToPipe()

getTwoPhaseMultiplier

public double getTwoPhaseMultiplier()

setTwoPhaseMultiplier

public void setTwoPhaseMultiplier(double tpMult)

getLockMartParameter

public double getLockMartParameter()

Returns computed Lockhart - Martinelli parameter