55 lines
1.6 KiB
C++
55 lines
1.6 KiB
C++
// globalconf.h
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//
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// Author: J.A. de Jong
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//
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// Description:
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// Global configuration options
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//////////////////////////////////////////////////////////////////////
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#pragma once
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#ifndef _GLOBALCONF_H_
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#define _GLOBALCONF_H_
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#include "tasmet_types.h"
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#include "tasmet_tracer.h"
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class Globalconf{
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d _omg; // The "base" frequency in rad/s
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us _Nf; // Number of frequencies to solve for
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dmat fDFT_,iDFT_,DDTfd_;
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// d Wfo_=0; // First order 'upwind' factor. If
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// Wfo=-1, interpolation is done from
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// the left side. If Wfo=0,
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// interpolation is second order. If
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// Wfo=1, interpolation is done from
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// the right side
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public:
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Globalconf(us Nf,d freq);
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us Nf() const {return _Nf;}
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us Ns() const {return 2*_Nf+1;}
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~Globalconf(){TRACE(-5,"~Globalconf()");}
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d getomg() const {return _omg;}
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d getfreq() const {return _omg/2/number_pi;}
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// d meshPeclet(const Gas& gas,d dx,d u) const {return u*dx*gas.rho0()*gas().cp(T0())/gas().kappa(T0());}
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void set(us Nf,d freq); // Set data for new frequency and
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// number of samples
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void setNf(us Nf){set(Nf,getfreq());}
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void setfreq(d freq){set(Nf(),freq);}
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void setomg(d omg) {set(Nf(),omg/(2*number_pi));}
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const dmat& iDFT() const {return iDFT_;} //inverse discrete Fourier transform matrix
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const dmat& fDFT() const {return fDFT_;} //forward discrete Fourier transform matrix
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const dmat& DDTfd() const {return DDTfd_;}//Derivative in frequency domain
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void show() const;
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}; /* Class Globalconf */
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#endif /* _GLOBALCONF_H_ */
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//////////////////////////////////////////////////////////////////////
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