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GB/T 30206.2-2013: Aerospace fluid systems vocabulary -- Part 2: General terms and definitions relating to flow
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GB/T 30206.2-2013: Aerospace fluid systems vocabulary -- Part 2: General terms and definitions relating to flow

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Aerospace fluid systems vocabulary Part 2.. General terms and definitions relating to flow ICS 49.080 V04 National Standards of People's Republic of China Aerospace - Fluid systems - Vocabulary Part 2. Traffic-related general terms and definitions Part 2. Generaltermsanddefinitionsrelatingtoflow (ISO 8625-2.1991, IDT) Issued on. 2013-12-31 2014-10-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Foreword

GB/T 30206-2013 "Aerospace - Fluid systems - Vocabulary" is divided into three parts. --- Part 1. General terms and definitions related to pressure; --- Part 2. flow general terms and definitions related; --- Part 3. Temperature-related common terminology and definitions. This section is GB/T of Part 230206-2013. This section drafted in accordance with GB/T 1.1-2009 given rules. This section uses the translation method identical with ISO 8625-2.1991 "Aerospace - Fluid systems - Vocabulary - Part 2. Flow through related Terms and definitions "(in English). This section makes the following editorial changes. --- With ISO 8625-2.1991 has changed compared to the terms of numbers. This part is proposed by the China Aviation Industry Corporation. This part of the aircraft by the National Standardization Technical Committee (SAC/TC435) centralized. This section drafted by. China Integrated Technical Institute Airlines, China Aviation Industry Corporation First Aircraft Design and Research Institute. The main drafters of this section. Liu Qin Cheng, LATIN Xupeng Guo. Aerospace - Fluid systems - Vocabulary Part 2. Traffic-related general terms and definitions

1 Scope

GB/T 30206 provisions of this part of the general traffic-related terms and definitions used in aerospace fluid systems.

2 Terms and definitions

2.1 Cavitation cavitation When the pressure was reduced to partial vapor pressure liquid, gas or vapor to a liquid to form a hole. It may include when the air pressure is reduced Precipitation (soft cavitation) from the liquid. 2.2 Choke chokedflow Compressible fluid (gas) due to fluid flow control vents sonic limitations. 2.3 Traffic flow Fluid flow generated by a pressure difference, which is defined as the unit of time along a cross-section through a fluid flow magnitude. Gas volume flow rate should be Standard sea level, atmospheric pressure and ambient temperature for the reference condition indicated. 2.4 Flow coefficient flowfactor Fluid flow means, a piping or fittings conduction characteristics. 2.5 Pneumatics traffic parameters flowparameterofpneumaticdevices Pneumatics compressible relationship between gas pressure and flow. 2.6 Fluctuations in traffic flowsurge Instantaneous flow up and down. 2.7 Laminar laminarflow By order of the layers in fluid flow characteristics. 2.8 Leak leakage By a relatively small amount of medium pore size. Leak manifests itself in unwanted traffic and cause energy loss. 2.8.1 External leakage externalleakage Usually flows from the attachment/device unacceptable external leakage. External leakage occurs usually indicates a device or system components appear Failed. ...