profileModel.H

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    Copyright (C) 2011-2013 OpenFOAM Foundation
    Copyright (C) 2020 OpenCFD Ltd.
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License
    This file is part of OpenFOAM.
 
    OpenFOAM is free software: you can redistribute it and/or modify it
    under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.
 
    OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
    FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
    for more details.
 
    You should have received a copy of the GNU General Public License
    along with OpenFOAM.  If not, see <http://www.gnu.org/licenses/>.
 
Class
    Foam::profileModel
 
Description
    Base class for profile models for handling
    aerofoil lift and drag polar diagrams.
 
Usage
    Minimal example by using \c constant/fvOptions:
    rotorDiskSource1
    {
        // Mandatory/Optional (inherited) entries
        ...
 
        // Mandatory entries (runtime modifiable)
        profiles
        {
            // Mandatory entries (runtime modifiable)
            <profile1>
            {
                type    <profileModel>;
 
                // Mandatory/Optional (inherited) entries
                ...
            }
            ...
            <profileN>
            {
                ...
            }
 
            // Optional entries (runtime modifiable)
            file        <fileName>;
        }
    }
 
    where the entries mean:
    \table
      Property   | Description                          | Type  | Reqd | Dflt
      type       | Profile model - see below            | word  | yes  | -
      file  | Name of file containing profile characteristics | word   | no  | -
    \endtable
 
    Options for the \c type entry:
    \verbatim
      lookup    | Polar data is linearly interpolated based on angle of attack
      series    | Polar data is computed as sum of cosine series
    \endverbatim
 
See also
  - Foam::fv::rotorDiskSource
  - Foam::lookupProfile
  - Foam::seriesProfile
 
SourceFiles
    profileModel.C
    profileModelList.C
 
\*---------------------------------------------------------------------------*/
 
#ifndef profileModel_H
#define profileModel_H
 
#include "autoPtr.H"
#include "runTimeSelectionTables.H"
#include "dictionary.H"
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
namespace Foam
{
 
/*---------------------------------------------------------------------------*\
                        Class profileModel Declaration
\*---------------------------------------------------------------------------*/
 
class profileModel
{
protected:
 
    // Protected Data
 
        //- Coefficients dictionary
        const dictionary dict_;
 
        //- Name of profile model
        const word name_;
 
        //- File name (optional)
        fileName fName_;
 
 
    // Protected Member Functions
 
        //- Return true if file name is set
        bool readFromFile() const;
 
 
public:
 
    //- Runtime type information
    TypeName("profileModel");
 
 
    // Declare run-time constructor selection table
 
        declareRunTimeSelectionTable
        (
            autoPtr,
            profileModel,
            dictionary,
            (
                const dictionary& dict,
                const word& modelName
            ),
            (dict, modelName)
        );
 
 
    // Selectors
 
        //- Return a reference to the selected fvOption model
        static autoPtr<profileModel> New(const dictionary& dict);
 
 
    //- Constructor
    profileModel(const dictionary& dict, const word& modelName);
 
 
    //- Destructor
    virtual ~profileModel() = default;
 
 
    // Member Functions
 
        // Access
 
            //- Return const access to the source name
            const word& name() const;
 
 
        // Evaluation
 
            //- Return the Cd and Cl for a given angle-of-attack
            virtual void Cdl
            (
                const scalar alpha,
                scalar& Cd,
                scalar& Cl
            ) const = 0;
};
 
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
} // End namespace Foam
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#endif
 
// ************************************************************************* //