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GB/Z 44048-2024Wind energy generation systems - Numerical site calibration for power performance testing of wind turbines (English PDF)

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Issued by

State Administration for Market Regulation, China National Standardization Administration

Level / Type

National · Recommended

Issue date

May 28, 2024

Implementation date

December 1, 2024

Scope

GB/Z 44048-2024 (Wind energy generation systems - Numerical site calibration for power performance testing of wind turbines) is available as an English-translated PDF.

GB/Z 44048-2024 is the Chinese standard "Wind energy generation systems - Numerical site calibration for power performance testing of wind turbines". Its scope clause reads: This paper summarizes the current status of numerical modeling of flows, existing guidelines and past benchmarking experiences in numerical model verification and validation.

Based on the work done, this paper identifies the important techniques for flow simulation over complex terrain in wind energy applications, as well as existing Unresolved issues, including suggestions for further validation through benchmarking.

This document is applicable to the calibration of wind turbine power characteristic test sites in wind farms. Its clauses include terms, definitions, abbreviations and symbols.

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Document preview — GB/Z 44048-2024

National Standard of the People's Republic of China

Classification
F 11

Issued by: State Administration for Market Regulation, China National Standardization Administration

Contents

  • Preface
  • Introduction
  • 1 Scope
  • 2 Normative references
  • 3 Terms, definitions, abbreviations and symbols
  • 3.1 Terms and Definitions
  • 3.2 Abbreviations
  • 3.3 Symbols and units
  • 4 Overview of numerical simulation methods
  • 4.1 Linear flow model
  • 4.2 Reynolds-Averaged Navier-Stokes (RANS) Model
  • 4.3 Large Eddy Simulation (LES) and RANS/LES Hybrid Model
  • 5 Current guidelines for the application of numerical flow modeling
  • 5.1 Overview
  • 5.2 AIAA (1998) Computational Fluid Simulation Verification and Validation Guidelines
  • 5.3 Verification and Validation Standards for Computational Fluid Dynamics and Heat Transfer - ASME
  • 5.4 COST732 “Quality Assurance of Microscale Meteorological Models”
  • 5.5 Architectural Institute of Japan Guidelines
  • 5.7 IEA Task 31 Wake Testbed - Model Assessment Protocol for Wind Farm Wake Benchmarks
  • 5.8 MEASNET-site-specific wind assessment
  • 6 Benchmark Validation Test Summary
  • 6.1 Overview
  • 6.2 Application of DEWI Cycle Test in Wind Energy Numerical Simulation
  • 6.3 Bolund test
  • 6.4 European Wind Energy Association Resource Comparison and Generation Assessment Procedure I and II (2011,.2013)
  • 6.5 IEA Task 31 Wake Testbed Test
  • 6.6 New European Wind Energy Atlas Experiment
  • 6.7 Wind Forecast Improvement Project 2
  • 6.8 Wind Tunnel Test Verification Data
  • 7 Important technologies for terrain-based flow simulation in wind energy applications
  • 7.1 Overview
  • 7.2 Quality of input terrain data
  • 7.3 Computational domain
  • 7.4 Boundary conditions of the computational domain
  • 7.5 Grid Parameters
  • 7.6 Convergence Criteria
  • 7.7 Atmospheric stability
  • 7.8 Coriolis effect
  • 7.9 Impact of obstacles
  • 7.10 Recommendations on the scope of application of numerical field calibration models
  • 8 Open Questions
  • 8.1 Overview
  • 8.2 Determination of airflow correction factors from numerical simulation results for power curve testing
  • 8.3 Uncertainty Quantification
  • 8.4 Proposal for a Validation Activity for Numerical Field Calibration Procedures
  • References

1 Scope

This paper summarizes the current status of numerical modeling of flows, existing guidelines and past benchmarking experiences in numerical model verification and validation.

Based on the work done, this paper identifies the important techniques for flow simulation over complex terrain in wind energy applications, as well as existing

Unresolved issues, including suggestions for further validation through benchmarking.

This document is applicable to the calibration of wind turbine power characteristic test sites in wind farms.

2 Normative references

This document has no normative references.

3 Terms, definitions, abbreviations and symbols

3.1 Terms and Definitions

There are no terms or definitions that require definition in this document.

3.2 Abbreviations

The following abbreviations apply to this document.

cedures

GB/T 25387.1 | GB/T 25388.1 | GB/T 25389.1 | GB/T 47555 | GB/Z 44047 | […]

......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 40 pages — is available in the English PDF.

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