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Comment:Declarations of class string prepended with std:: to satisfy g++.
cmath is preferred to math.h
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SHA3-256: 7850422450df1da039b858673afca58656be87286e085f9668883a9fa39181aa
User & Date: geraint@users.sourceforge.net on 2004-08-09 17:46:52
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2004-08-09
17:49:06
Prepended std:: to iostream classes to satisfy g++.
cmath is preferred to math.h check-in: 5ad98a8817 user: geraint@users.sourceforge.net tags: origin/master, trunk
17:46:52
Declarations of class string prepended with std:: to satisfy g++.
cmath is preferred to math.h check-in: 7850422450 user: geraint@users.sourceforge.net tags: origin/master, trunk
17:45:56
cmath is preferred to math.h check-in: e2526f63ef user: geraint@users.sourceforge.net tags: origin/master, trunk
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Modified mttroot/mtt/lib/cr/hh/pressuredrop.hh from [378b136495] to [6e65549995]. 

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#ifndef PRESSUREDROP_HH
#define PRESSUREDROP_HH


#include <math.h>		// fabs, pow

#include "constants.hh"
#include "frictionfactor.hh"
#include "kinematicviscosity.hh"
#include "sign.hh"

inline double
pressuredrop(const string fluid,
	     const double d,
	     const double l,
	     const double r,
	     const double rho,
	     const double T,
	     const double Q)
{
  double nu = kinematicviscosity(fluid, T);
  double Re = 4.0 * fabs(Q) / (pi * d * nu);
  double f = frictionfactor(Re, r);
  double k = 4.0 * f * l / d;
  double dP = k * 8.0 * rho * pow(Q, 2) / (pi2 * pow(d, 4));
  return (dP * sign(Q));
}

inline double
pressuredrop(const string fluid,
	     const double d,
	     const double l,
	     const double r,
	     const double rho,
	     const double T,
	     const causality_t effort_causality, const int port,
	     const double Q, const causality_t flow_causality, const int port_in)




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#ifndef PRESSUREDROP_HH
#define PRESSUREDROP_HH

#include <cmath>		// fabs, pow
#include <string>

#include "constants.hh"
#include "frictionfactor.hh"
#include "kinematicviscosity.hh"
#include "sign.hh"

inline double
pressuredrop(const std::string fluid,
	     const double d,
	     const double l,
	     const double r,
	     const double rho,
	     const double T,
	     const double Q)
{
  double nu = kinematicviscosity(fluid, T);
  double Re = 4.0 * fabs(Q) / (pi * d * nu);
  double f = frictionfactor(Re, r);
  double k = 4.0 * f * l / d;
  double dP = k * 8.0 * rho * pow(Q, 2) / (pi2 * pow(d, 4));
  return (dP * sign(Q));
}

inline double
pressuredrop(const std::string fluid,
	     const double d,
	     const double l,
	     const double r,
	     const double rho,
	     const double T,
	     const causality_t effort_causality, const int port,
	     const double Q, const causality_t flow_causality, const int port_in)
︙︙

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