{"id":3093,"date":"2023-05-23T15:05:23","date_gmt":"2023-05-23T12:05:23","guid":{"rendered":"http:\/\/itm.dp.ua\/?page_id=3093"},"modified":"2023-12-20T14:35:05","modified_gmt":"2023-12-20T12:35:05","slug":"hpgddts-benchintermittently-operated-supersonic-wind-tunnel","status":"publish","type":"page","link":"http:\/\/itm.dp.ua\/?page_id=3093&lang=en","title":{"rendered":"HPGDDTS BENCH (intermittently operated supersonic wind tunnel)"},"content":{"rendered":"\n

Department of hydromechanical and vibration protection systems dynamics<\/p>\n\n\n\n

Head of department \u2013\u00a0Academician of the National Academy of Sciences of Ukraine<\/em>, D.Sc., Professor\u00a0Oleg V. Pylypenko<\/strong><\/a><\/p>\n\n\n\n

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Key specifications<\/strong><\/p>\n\n\n\n

Working gas<\/td>air<\/td><\/tr>
Mach number<\/td>up to 3.0<\/td><\/tr>
Total pressure<\/td>0.02 to 20 MPa<\/td><\/tr>
Stagnation temperature:<\/td>300 to 800 K<\/td><\/tr>
\u2022 main flow<\/td>atmospheric<\/td><\/tr>
\u2022 injection streams<\/td>800 \u041a<\/td><\/tr>
Starting time<\/td>30 to 80 s<\/td><\/tr>
Scavenging air consumption<\/td>up to 10 kg\/s<\/td><\/tr>
Air dew point<\/td>218 \u041a<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n
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1 \u2014 compressor
2 \u2014 air bottle battery
3 \u2014 feed pipelines
4 \u2014 T640 pressure regulator
5 \u2014 flow-measuring section
6 \u2014 control panel
7 \u2014 cutoff valve
8 \u2014 model placement location<\/figcaption><\/figure>\n\n\n\n

Description<\/strong><\/p>\n\n\n\n

The HPGDDTS bench is a hiph-pressure gas-dynamic device testing system for the study of the thermodynamic characteristics of models of elements of space hardware and new technologies.<\/p>\n\n\n\n

To form working flows with a wide range of characteristics, the bench is equipped with a set of flat and shaped nozzles and units. High-pressure air is fed to the settling chamber of the tunel and enters the models under study, the inlet pressure being set using a pressure regulator.<\/p>\n\n\n\n

In experiments, clean and dry high-pressure air with a dew point of no more than 218 K is used. The maximum air flow rate is 4 kg\/s. The duration of a test is 180 s. The air feed system and the test parameters are controlled remotely from the control panel. The bench has means for visualizing flows of different speeds using a variety of methods.<\/p>\n\n\n\n

The bench is equipped with strain gage transducers to determine forces and moments and with a computer-aided measuring-and-computing and control complex.<\/p>\n\n\n\n

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Capabilities<\/strong><\/p>\n\n\n\n

The bench makes possible:<\/p>\n\n\n\n