WallFrictionModelsTest.C File Reference

Go to the source code of this file.

Functions
	TEST (WallFrictionModelsTest, darcy_friction_factor)
	TEST (WallFrictionModelsTest, fanning_friction_factor_churchill)
	TEST (WallFrictionModelsTest, fanning_friction_factor_cheng)

Function Documentation

TEST() [1/3]

TEST	(	WallFrictionModelsTest	,
		darcy_friction_factor
	)

Definition at line 14 of file WallFrictionModelsTest.C.

{
  ABS_TEST(WallFriction::DarcyFrictionFactor(5.), 20., 1e-13);
}

TEST() [2/3]

TEST	(	WallFrictionModelsTest	,
		fanning_friction_factor_cheng
	)

Definition at line 27 of file WallFrictionModelsTest.C.

{
  // Laminar interior subchannel of a square array with P/D = 1.1, whose Darcy friction factor
  // constant from Table 5 of Cheng and Todreas (1986) is 35.55 + 263.7 (0.1) - 190.2 (0.1)^2 =
  // 60.018
  const Real Re = 2000;
  const Real f_F = WallFriction::FanningFrictionFactorCheng(Re, 35.55, 263.7, -190.2, 1.0, 1.1);
  REL_TEST(WallFriction::DarcyFrictionFactor(f_F), 60.018 / Re, REL_TOL_SAVED_VALUE);
}

TEST() [3/3]

TEST	(	WallFrictionModelsTest	,
		fanning_friction_factor_churchill
	)

Definition at line 19 of file WallFrictionModelsTest.C.

{
  // Re < 10
  ABS_TEST(WallFriction::FanningFrictionFactorChurchill(1, 1e-5, 2e-2), 1.6, 1e-13);
  // Re > 10
  ABS_TEST(WallFriction::FanningFrictionFactorChurchill(100, 1e-5, 2e-2), 0.16, 1e-13);
}