small fixes and add more groups

Author: pcarruscag

Docs/docmain.hpp

@@ -48,11 +48,11 @@
  * thus navigate the architecture from the bottom up (note that this will also be more effective if done
  * for base classes).
  *
- * ## Good practices when documenting a function
+ * ### Good practices when documenting classes and functions
  *
  * The groups and subgroups defined in this file form a hierarchy of doxygen modules, when documenting a
  * class or free function it should be added to a group (member functions belong to the group of the class
- * by default), otherwise it will be difficult to navigate to the documentation.
+ * by default), otherwise it will be difficult to navigate to the documentation of the class or function.
  * Therefore, all classes and functions should have a doxygen documentation block with at least \\brief and
  * \\ingroup properties.
  *
@@ -106,6 +106,11 @@
  *		  three formulations: direct, adjoint, and linearized.
  */
 
+/*!
+ * \defgroup Scalar_Transport Solving scalar transport equations
+ * \brief Classes to solve scalar transport equations.
+ */
+
 /*!
  * \defgroup Elasticity_Equations Solving the elasticity equations
  * \brief Group of classes to solve solid deformation problems.
@@ -130,6 +135,11 @@
  * \brief Classes used to store and access the solution variables of all types of problems.
  */
 
+/*!
+ * \defgroup Output Screen, history, and file output
+ * \brief Classes used to define the output of the solvers in SU2.
+ */
+
 /*!
  * \defgroup DiscAdj Discrete Adjoint
  * \brief Classes and functions used to solve discrete adjoint equations.

SU2_CFD/include/output/COutput.hpp

@@ -58,9 +58,9 @@ class CConfig;
 using namespace std;
 
 /*!
- * \class COutput
  * \brief Class for writing the convergence history and to write solution data to file.
  * \author T.Albring
+ * \ingroup Output
  */
 class COutput {
 protected:

SU2_CFD/include/solvers/CScalarSolver.hpp

@@ -33,9 +33,9 @@
 #include "CSolver.hpp"
 
 /*!
- * \class CScalarSolver
  * \brief Main class for defining a scalar solver.
  * \tparam VariableType - Class of variable used by the solver inheriting from this template.
+ * \ingroup Scalar_Transport
  */
 template <class VariableType>
 class CScalarSolver : public CSolver {

SU2_CFD/include/solvers/CSpeciesSolver.hpp

@@ -32,9 +32,9 @@
 #include "CScalarSolver.hpp"
 
 /*!
- * \class CSpeciesSolver
  * \brief Main class for defining the species transport solver.
  * \author T. Kattmann.
+ * \ingroup Scalar_Transport
  */
 class CSpeciesSolver : public CScalarSolver<CSpeciesVariable> {
  protected: