IEC 62097:2009

FOREWORD
INTRODUCTION
1 Scope
2 Normative references
3 Terms, definitions, symbols and units
  3.1 System of units
  3.2 List of terms
      3.2.1 Subscripts' list
      3.2.2 Terms, definitions, symbols and units
4 Scale-effect formula
  4.1 General
      4.1.1 Scalable losses
      4.1.2 Basic formulae of the scale effect on hydrodynamic
            friction losses
  4.2 Specific hydraulic energy efficiency
      4.2.1 Step-up formula
      4.2.2 Roughness of model and prototype
      4.2.3 Direct step-up for a whole turbine
  4.3 Power efficiency (disc friction)
      4.3.1 Step-up formula
      4.3.2 Roughness of model and prototype
  4.4 Volumetric efficiency
5 Standardized values of scalable losses and pertinent
      parameters
  5.1 General
  5.2 Specific speed
  5.3 Parameters for specific hydraulic energy efficiency
      step-up
  5.4 Parameters for power efficiency (disc friction)
      step-up
6 Calculation of prototype performance
  6.1 General
  6.2 Hydraulic efficiency
  6.3 Specific hydraulic energy
  6.4 Discharge
  6.5 Torque
  6.6 Power
  6.7 Required input data
7 Calculation procedure
Annex A (informative) Basic formulae and their
        approximation
Annex B (informative) Scale effect on specific hydraulic
        energy losses of radial flow machines
Annex C (informative) Scale effect on specific hydraulic
        energy losses of axial flow machines [10]
Annex D (informative) Scale effect on disc friction loss
Annex E (informative) Leakage loss evaluation for non
        homologous seals
Bibliography