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Test specification for low-speed wind tunnel performance
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Basic data
| Standard ID | GB/T 44448-2024 (GB/T44448-2024) |
| Description (Translated English) | Test specification for low-speed wind tunnel performance |
| Sector / Industry | National Standard (Recommended) |
| Classification of Chinese Standard | N95 |
| Classification of International Standard | 07.060 |
| Word Count Estimation | 14,163 |
| Date of Issue | 2024-09-29 |
| Date of Implementation | 2024-09-29 |
| Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration |
Similar standards
GB/T 44110|GB/T 44448-2024: Test specification for low-speed wind tunnel performance
---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
ICS 07.060
CCSN95
National Standard of the People's Republic of China
Low speed wind tunnel performance test specification
Released on 2024-09-29
Implementation on September 29, 2024
State Administration for Market Regulation
The National Standardization Administration issued
Table of Contents
Preface III
1 Scope 1
2 Normative references 1
3 Terms and Definitions 1
4 Test Requirements 1
5 Test Method 2
6 Test Report 5
Appendix A (Informative) Standard flow rate calculation method 7
Appendix B (Normative) Arrangement of flow rate uniformity test points 8
Foreword
This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for standardization work Part 1.Structure and drafting rules for standardization documents"
Drafting.
Please note that some of the contents of this document may involve patents. The issuing organization of this document does not assume the responsibility for identifying patents.
This document was proposed by the China Meteorological Administration.
This document is under the jurisdiction of the National Technical Committee for Standardization of Meteorological Instruments and Observation Methods (SAC/TC507).
This document was drafted by. China Meteorological Administration Meteorological Observation Center, Chinese People's Liberation Army 61540 Unit, Xinjiang Uygur Autonomous Region Meteorological
Technical Equipment Support Center, Zog Microsystems (Hangzhou) Co., Ltd., Zhejiang Atmospheric Sounding Technology Support Center, Aerospace New Meteorological Technology Co., Ltd.
Company, Tibet Autonomous Region Atmospheric Sounding Technology and Equipment Support Center, and 93220 Unit of the People's Liberation Army of China.
The main drafters of this document are. Chen Xi, Li Songkui, Jiang Mingbo, Yin Xingchen, Chong Wei, Qi Tao, Miao Chenbiao, Luo Chang, Sun Lixin, Zhu Jing, Yuan Wei,
Chen, Hua, Luo, Zangjia, and Yang, Yuexin.
Low speed wind tunnel performance test specification
1 Scope
This document specifies the test requirements for low-speed wind tunnels (hereinafter referred to as wind tunnels) and provides corresponding test methods, test reports, etc.
This document is applicable to the main performance tests of meteorological low-speed wind tunnels with air velocity not exceeding 85m/s.
2 Normative references
This document has no normative references.
3 Terms and definitions
The following terms and definitions apply to this document.
3.1
Test section test section
The area in a wind tunnel used to install the instrument under test or the standard.
Note. When the wind tunnel has two or more test sections, the test section where the standard instrument is installed is called the main test section.
3.2
Uniformity of velocity
The uniformity of air velocity distribution on the same cross section in a wind tunnel test section.
3.3
Stability of velocity
The degree to which the air velocity in a wind tunnel test section pulsates over time.
3.4
velocity ratio
The ratio of the air flow velocity in other test sections to that in the main test section within the wind tunnel flow velocity range.
3.5
The amount of change in the air flow temperature in the test section caused by continuous operation of the wind tunnel.
Note. The unit is Celsius (℃).
4 Test requirements
4.1 Test items
According to the actual application needs, select the test section and test items. Test items generally include flow rate range, flow rate uniformity, flow rate stability
The test items shall comply with the requirements of Table 1.
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