[T] material class test

Tests/MathLib/TestNonlinear1D_Zeolite.cpp

+#include <gtest/gtest.h>
+
+#include <cstdio>
+
+#include "MathLib/Nonlinear/Root1D.h"
+
+#include "MaterialsLib/adsorption/adsorption.h"
+
+using namespace Ads;
+
+
+namespace
+{
+
+const double T = 303.15; // K
+const double R = 8.314;  // J/mol/K
+const double M = 0.018;  // kg/mol
+const double phi = 0.4;
+const double rho_SR0 = 1160.0; // kg/m^3
+// const double k = 6e-3;   // s^-1
+
+const double C0 = 0.0;
+const double pV0 = 1e2;
+
+Adsorption* ads = Adsorption::newInstance(SolidReactiveSystem::Z13XBF_Hauer);
+
+double f(const double pV)
+{
+    const double C = ads->get_equilibrium_loading(pV, T, M);
+    return (phi-1)/phi * (C - C0) * rho_SR0 * R*T/M + pV0 - pV;
+}
+
+double f2(const double pV)
+{
+    const double C = ads->get_equilibrium_loading(pV, T, M);
+    // return (phi-1)/phi * (C - C0) * rho_SR0 * R*T/M + pV0 - pV;
+    return (pV-pV0) * M/R/T * phi + (1-phi) * (C - C0) * rho_SR0;
+}
+
+
+} // anonymous namespace
+
+
+
+template <typename T>
+class RegulaFalsiTestZeolite : public ::testing::Test
+{
+};
+
+
+using namespace MathLib::Nonlinear;
+typedef ::testing::Types<Unmodified, Illinois, Pegasus, AndersonBjorck> RegulaFalsiTypes;
+TYPED_TEST_CASE(RegulaFalsiTestZeolite, RegulaFalsiTypes);
+
+
+
+TYPED_TEST(RegulaFalsiTestZeolite, Zeolite)
+{
+    auto rf = makeRegulaFalsi<TypeParam>(f, 1e-8, pV0);
+
+    std::printf(" 0 -- x ~ %14.7g, range = %14.7g\n", rf.get_result(), rf.get_range());
+
+    for (unsigned n=0; n<10; ++n)
+    {
+        rf.step(1);
+        std::printf("%2i --  x ~ %14.7g, range = %14.7g\n", n+1, rf.get_result(), rf.get_range());
+    }
+}
+
+TYPED_TEST(RegulaFalsiTestZeolite, Zeolite2)
+{
+    // auto rf = MakeRegulaFalsi<TypeParam>::create(f2, 1e-8, pV0);
+    auto rf = makeRegulaFalsi<TypeParam>(f2, 1e-8, pV0);
+
+    std::printf(" 0 -- x ~ %14.7g, range = %14.7g\n", rf.get_result(), rf.get_range());
+
+    for (unsigned n=0; n<10; ++n)
+    {
+        rf.step(1);
+        std::printf("%2i --  x ~ %14.7g, range = %14.7g\n", n+1, rf.get_result(), rf.get_range());
+    }
+}