What does unstart mean?
Definitions for unstart
un·start
This dictionary definitions page includes all the possible meanings, example usage and translations of the word unstart.
Did you actually mean unstarred or unstirred?
Wiktionary
unstartnoun
A sudden compressor stall that can occur in the jet engines of supersonic aircraft.
Wikidata
Unstart
Unstart, is technical term used in supersonic aerodynamics to refer to a generally violent breakdown of the supersonic airflow. Original use came about as wind tunnels were designed that could drive the airflow supersonic. 'Starting' the supersonic wind tunnel is therefore the process in which the air becomes supersonic. Unstart of the wind tunnel is the reverse process. The shock waves that develop during the starting or unstart process are often visualized with schlieren or shadowgraph optical techniques. As airplanes began to achieve supersonic flight, an inlet that delivers proper airflow to an engine became a major complicating element to aircraft design. In a simple sense, these supersonic inlets had to be carefully designed like a supersonic wind tunnel. At high supersonic speeds, the inlet is designed to have supersonic flow inside of the airflow capture plane. Similar to the supersonic wind tunnel, if the massflow at the capture plane does not match the downstream massflow at the engine, the inlet will unstart. Depending on the design, this can be violent to the airplane and pilot. The SR-71 air inlets were designed for exceptional performance but also had the risk of unstart. Another aircraft with unstart risk was the B-70 Valkyrie. The unstart problem became dramatically evident during the development of the F-107 fighter. Resistance to unstart has become an important element that defines propulsion operability and can be considered analogous to compressor stall for a jet engine.
Anagrams for unstart »
truants
Numerology
Chaldean Numerology
The numerical value of unstart in Chaldean Numerology is: 7
Pythagorean Numerology
The numerical value of unstart in Pythagorean Numerology is: 5
Translation
Find a translation for the unstart definition in other languages:
Select another language:
- - Select -
- 简体中文 (Chinese - Simplified)
- 繁體中文 (Chinese - Traditional)
- Español (Spanish)
- Esperanto (Esperanto)
- 日本語 (Japanese)
- Português (Portuguese)
- Deutsch (German)
- العربية (Arabic)
- Français (French)
- Русский (Russian)
- ಕನ್ನಡ (Kannada)
- 한국어 (Korean)
- עברית (Hebrew)
- Gaeilge (Irish)
- Українська (Ukrainian)
- اردو (Urdu)
- Magyar (Hungarian)
- मानक हिन्दी (Hindi)
- Indonesia (Indonesian)
- Italiano (Italian)
- தமிழ் (Tamil)
- Türkçe (Turkish)
- తెలుగు (Telugu)
- ภาษาไทย (Thai)
- Tiếng Việt (Vietnamese)
- Čeština (Czech)
- Polski (Polish)
- Bahasa Indonesia (Indonesian)
- Românește (Romanian)
- Nederlands (Dutch)
- Ελληνικά (Greek)
- Latinum (Latin)
- Svenska (Swedish)
- Dansk (Danish)
- Suomi (Finnish)
- فارسی (Persian)
- ייִדיש (Yiddish)
- հայերեն (Armenian)
- Norsk (Norwegian)
- English (English)
Word of the Day
Would you like us to send you a FREE new word definition delivered to your inbox daily?
Citation
Use the citation below to add this definition to your bibliography:
Style:MLAChicagoAPA
"unstart." Definitions.net. STANDS4 LLC, 2024. Web. 19 Apr. 2024. <https://www.definitions.net/definition/unstart>.
Discuss these unstart definitions with the community:
Report Comment
We're doing our best to make sure our content is useful, accurate and safe.
If by any chance you spot an inappropriate comment while navigating through our website please use this form to let us know, and we'll take care of it shortly.
Attachment
You need to be logged in to favorite.
Log In