MethaneFluidPropertiesTest.C File Reference

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Functions
	TEST_F (MethaneFluidPropertiesTest, criticalProperties)
	Verify that critical properties are correctly returned. More...
	TEST_F (MethaneFluidPropertiesTest, triplePointProperties)
	Verify that triple point properties are correctly returned. More...
	TEST_F (MethaneFluidPropertiesTest, fluidName)
	Test that the fluid name is correctly returned. More...
	TEST_F (MethaneFluidPropertiesTest, molarMass)
	Test that the molar mass is correctly returned. More...
	TEST_F (MethaneFluidPropertiesTest, henry)
	Verify that the coefficients for Henry's constant are correct using Guidelines on the Henry's constant and vapour liquid distribution constant for gases in H20 and D20 at high temperatures, IAPWS (2004). More...
	TEST_F (MethaneFluidPropertiesTest, vapor)
	Verify calculation of vapor pressure, vapor density and saturated liquid density. More...
	TEST_F (MethaneFluidPropertiesTest, properties)
	Verify calculation of thermophysical properties of methane using verification data provided in Setzmann and Wagner, A new equation of state and tables of thermodynamic properties for methane covering the range from the melting line to 625 K at pressures up to 100 MPa, Journal of Physical and Chemical Reference Data, 20, 1061–1155 (1991) and Irvine Jr, T. More...
	TEST_F (MethaneFluidPropertiesTest, derivatives)
	Verify calculation of the derivatives of all properties by comparing with finite differences. More...
	TEST_F (MethaneFluidPropertiesTest, combined)
	Verify that the methods that return multiple properties in one call return identical values as the individual methods. More...

Function Documentation

TEST_F() [1/9]

TEST_F	(	MethaneFluidPropertiesTest	,
		criticalProperties
	)

Verify that critical properties are correctly returned.

Definition at line 16 of file MethaneFluidPropertiesTest.C.

{
  ABS_TEST(_fp->criticalPressure(), 4.5992e6, REL_TOL_SAVED_VALUE);
  ABS_TEST(_fp->criticalTemperature(), 190.564, REL_TOL_SAVED_VALUE);
  ABS_TEST(_fp->criticalDensity(), 162.66, REL_TOL_SAVED_VALUE);
}

TEST_F() [2/9]

TEST_F	(	MethaneFluidPropertiesTest	,
		triplePointProperties
	)

Verify that triple point properties are correctly returned.

Definition at line 26 of file MethaneFluidPropertiesTest.C.

{
  ABS_TEST(_fp->triplePointPressure(), 1.169e4, REL_TOL_SAVED_VALUE);
  ABS_TEST(_fp->triplePointTemperature(), 90.6941, REL_TOL_SAVED_VALUE);
}

TEST_F() [3/9]

TEST_F	(	MethaneFluidPropertiesTest	,
		fluidName
	)

Test that the fluid name is correctly returned.

Definition at line 35 of file MethaneFluidPropertiesTest.C.

{ EXPECT_EQ(_fp->fluidName(), "methane"); }

TEST_F() [4/9]

TEST_F	(	MethaneFluidPropertiesTest	,
		molarMass
	)

Test that the molar mass is correctly returned.

Definition at line 40 of file MethaneFluidPropertiesTest.C.

{
  ABS_TEST(_fp->molarMass(), 16.0425e-3, REL_TOL_SAVED_VALUE);
}

TEST_F() [5/9]

TEST_F	(	MethaneFluidPropertiesTest	,
		henry
	)

Verify that the coefficients for Henry's constant are correct using Guidelines on the Henry's constant and vapour liquid distribution constant for gases in H20 and D20 at high temperatures, IAPWS (2004).

Definition at line 50 of file MethaneFluidPropertiesTest.C.

{
  const Real tol = REL_TOL_EXTERNAL_VALUE;
  const std::vector<Real> hc = _fp->henryCoefficients();

  REL_TEST(hc[0], -10.44708, tol);
  REL_TEST(hc[1], 4.66491, tol);
  REL_TEST(hc[2], 12.1298, tol);
}

TEST_F() [6/9]

TEST_F	(	MethaneFluidPropertiesTest	,
		vapor
	)

Verify calculation of vapor pressure, vapor density and saturated liquid density.

Definition at line 64 of file MethaneFluidPropertiesTest.C.

{
  const Real tol = REL_TOL_EXTERNAL_VALUE;

  // Vapor pressure
  REL_TEST(_fp->vaporPressure(110.0), 0.08813e6, tol);
  REL_TEST(_fp->vaporPressure(130.0), 0.36732e6, tol);
  REL_TEST(_fp->vaporPressure(190.0), 4.5186e6, tol);

  // Saturated vapor density
  REL_TEST(_fp->saturatedVaporDensity(110.0), 1.5982, tol);
  REL_TEST(_fp->saturatedVaporDensity(130.0), 5.9804, tol);
  REL_TEST(_fp->saturatedVaporDensity(190.0), 125.18, tol);

  // Saturated liquid density
  REL_TEST(_fp->saturatedLiquidDensity(110.0), 424.78, tol);
  REL_TEST(_fp->saturatedLiquidDensity(130.0), 394.04, tol);
  REL_TEST(_fp->saturatedLiquidDensity(190.0), 200.78, tol);
}

TEST_F() [7/9]

TEST_F	(	MethaneFluidPropertiesTest	,
		properties
	)

Verify calculation of thermophysical properties of methane using verification data provided in Setzmann and Wagner, A new equation of state and tables of thermodynamic properties for methane covering the range from the melting line to 625 K at pressures up to 100 MPa, Journal of Physical and Chemical Reference Data, 20, 1061–1155 (1991) and Irvine Jr, T.

F. and Liley, P. E. (1984) Steam and Gas Tables with Computer Equations

Definition at line 95 of file MethaneFluidPropertiesTest.C.

{
  // Pressure = 10 MPa, temperature = 350 K
  Real p = 10.0e6;
  Real T = 350.0;
  const Real tol = REL_TOL_EXTERNAL_VALUE;

  REL_TEST(_fp->rho_from_p_T(p, T), 59.261, tol);
  REL_TEST(_fp->h_from_p_T(p, T), 47.785e3, tol);
  REL_TEST(_fp->e_from_p_T(p, T), -120.96e3, tol);
  REL_TEST(_fp->s_from_p_T(p, T), -2.1735e3, tol);
  REL_TEST(_fp->cv_from_p_T(p, T), 1.9048e3, tol);
  REL_TEST(_fp->cp_from_p_T(p, T), 2.8021e3, tol);
  REL_TEST(_fp->c_from_p_T(p, T), 487.29, tol);
  REL_TEST(_fp->mu_from_p_T(p, T), 0.01276e-3, tol);
  REL_TEST(_fp->k_from_p_T(p, T), 0.04113, tol);
}

TEST_F() [8/9]

TEST_F	(	MethaneFluidPropertiesTest	,
		derivatives
	)

Verify calculation of the derivatives of all properties by comparing with finite differences.

Definition at line 117 of file MethaneFluidPropertiesTest.C.

{
  const Real tol = REL_TOL_DERIVATIVE;

  const Real p = 10.0e6;
  Real T = 350.0;

  DERIV_TEST(_fp->rho_from_p_T, p, T, tol);
  DERIV_TEST(_fp->mu_from_p_T, p, T, tol);
  DERIV_TEST(_fp->e_from_p_T, p, T, tol);
  DERIV_TEST(_fp->h_from_p_T, p, T, tol);
  DERIV_TEST(_fp->k_from_p_T, p, T, tol);
}

TEST_F() [9/9]

TEST_F	(	MethaneFluidPropertiesTest	,
		combined
	)

Verify that the methods that return multiple properties in one call return identical values as the individual methods.

Definition at line 135 of file MethaneFluidPropertiesTest.C.

{
  const Real p = 1.0e6;
  const Real T = 300.0;
  const Real tol = REL_TOL_CONSISTENCY;

  // Single property methods
  Real rho, drho_dp, drho_dT;
  _fp->rho_from_p_T(p, T, rho, drho_dp, drho_dT);
  Real mu, dmu_dp, dmu_dT;
  _fp->mu_from_p_T(p, T, mu, dmu_dp, dmu_dT);
  Real e, de_dp, de_dT;
  _fp->e_from_p_T(p, T, e, de_dp, de_dT);

  // Combined property methods
  Real rho2, drho2_dp, drho2_dT, mu2, dmu2_dp, dmu2_dT, e2, de2_dp, de2_dT;
  _fp->rho_mu_from_p_T(p, T, rho2, mu2);

  ABS_TEST(rho, rho2, tol);
  ABS_TEST(mu, mu2, tol);

  _fp->rho_mu_from_p_T(p, T, rho2, drho2_dp, drho2_dT, mu2, dmu2_dp, dmu2_dT);
  ABS_TEST(rho, rho2, tol);
  ABS_TEST(drho_dp, drho2_dp, tol);
  ABS_TEST(drho_dT, drho2_dT, tol);
  ABS_TEST(mu, mu2, tol);
  ABS_TEST(dmu_dp, dmu2_dp, tol);
  ABS_TEST(dmu_dT, dmu2_dT, tol);

  _fp->rho_e_from_p_T(p, T, rho2, drho2_dp, drho2_dT, e2, de2_dp, de2_dT);
  ABS_TEST(rho, rho2, tol);
  ABS_TEST(drho_dp, drho2_dp, tol);
  ABS_TEST(drho_dT, drho2_dT, tol);
  ABS_TEST(e, e2, tol);
  ABS_TEST(de_dp, de2_dp, tol);
  ABS_TEST(de_dT, de2_dT, tol);
}