Matches in DBpedia 2014 for { <http://dbpedia.org/resource/SERN> ?p ?o. }
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- SERN abstract "In rocketry, a SERN, which stands for single expansion ramp nozzle, is a type of physical linear expansion nozzle where the gas pressure transfers work only on one side. Traditional nozzles are axially symmetric, and therefore surround the expanding gas. Linear nozzles are not axially symmetric, but consist of a 2D configuration of two expansion ramps. A SERN could also be seen as a single sided aerospike engine.Many designs for space planes with scramjet engines make use of SERNs because of the weight reduction at large expansion ratios, or the additional lift at under-expansion. The X-43, a test vehicle in NASA's Hyper-X programme, is a flying example.One of the practical problems with the use of SERNs is the fact that they produce a pitching moment depending on the throttling of the engine, thereby requiring more control authority of the elevators and more complex control systems etc.".
- SERN thumbnail SERN_T.png?width=300.
- SERN wikiPageID "2869150".
- SERN wikiPageRevisionID "514136740".
- SERN hasPhotoCollection SERN.
- SERN subject Category:Nozzles.
- SERN subject Category:Rocket_engines.
- SERN type Artifact100021939.
- SERN type Device103183080.
- SERN type Engine103287733.
- SERN type Instrumentality103575240.
- SERN type JetEngine103596285.
- SERN type Machine103699975.
- SERN type Motor103789946.
- SERN type Nozzle103833564.
- SERN type Nozzles.
- SERN type Object100002684.
- SERN type Opening103848729.
- SERN type PhysicalEntity100001930.
- SERN type Reaction-propulsionEngine104057435.
- SERN type Rocket104099175.
- SERN type RocketEngines.
- SERN type Spout104287153.
- SERN type Whole100003553.
- SERN comment "In rocketry, a SERN, which stands for single expansion ramp nozzle, is a type of physical linear expansion nozzle where the gas pressure transfers work only on one side. Traditional nozzles are axially symmetric, and therefore surround the expanding gas. Linear nozzles are not axially symmetric, but consist of a 2D configuration of two expansion ramps.".
- SERN label "SERN".
- SERN sameAs m.087zz9.
- SERN sameAs Q7389822.
- SERN sameAs Q7389822.
- SERN sameAs SERN.
- SERN wasDerivedFrom SERN?oldid=514136740.
- SERN depiction SERN_T.png.
- SERN isPrimaryTopicOf SERN.
