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CFD beräkning på en jetmotorinstallation
Mälardalen University, School of Innovation, Design and Engineering.
2013 (Swedish)Independent thesis Basic level (professional degree), 10 credits / 15 HE creditsStudent thesisAlternative title
CFD Computation of a Jet Engine Setup (English)
Abstract [sv]

Hawk Turbine AB tillverkar mindre jetmotorer som ofta används i små obemannade och radiostyrda flygplan. I flygplansmodellen Lockheed T-33 Shooting Star är motorn monterad inuti planet varför luften måste ledas ut till atmosfären. För bästa möjliga prestanda måste ejektorn och utblåsröret som leder luften dimensioneras efter motor och flyghastighet.

En 3-dimensionell CAD modell av flygplanets installation skapades och därefter simulerats i en virtuell vindtunnel med hjälp av datorprogrammet SolidWorks Flow Simulation. Flera olika utblåsrör i varierande storlekar samt olika former har testats för att avgöra om ändringar kan förbättra prestandan ytterligare.

Simulationsresultat visar att det går att förbättra nuvarande konfiguration med 5,99 % om diametern på utblåsröret minskas från 75 mm till 70 mm med en bibehållen form på utblåsröret.

Abstract [en]

Hawk Turbine AB is a company that manufactures small jet engines which are often used in smaller unmanned and radio-controlled aircrafts. In the Lockheed T-33 Shooting Star aircraft the engine is mounted in the center of the aircraft and therefore requires ducts to be used for directing the exhaust to the atmosphere. For optimum performance the ejector and the exhaust manifold must be designed for the engine and the flight velocity.

A 3-dimentional CAD model of the aircrafts ducts was created. The model was then used in virtual wind tunnel testing using the software SolidWorks Flow Simulation. Different shapes and sizes of the manifolds were tested in the simulations to determine if modifications can further improve the performance.

The simulations show that the performance of the current manifold can be improved by 5,99 % if the diameter of the manifold is reduced from 75 mm to 70 mm while keeping the shape of the manifold unaltered.

Place, publisher, year, edition, pages
2013. , 37 p.
Keyword [sv]
Aerodynamik, Strömning, CFD, jet, jetmotor, motor
National Category
Aerospace Engineering
Identifiers
URN: urn:nbn:se:mdh:diva-21746OAI: oai:DiVA.org:mdh-21746DiVA: diva2:664503
External cooperation
Hawk Turbine AB
Subject / course
Aeronautical Engineering
Supervisors
Examiners
Available from: 2013-11-28 Created: 2013-10-01 Last updated: 2013-11-28Bibliographically approved

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CFDberakningpaenjetmotorinstallation(1655 kB)488 downloads
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Jain, Arnav
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CiteExportLink to record
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Citation style
  • apa
  • ieee
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  • Other style
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Language
  • de-DE
  • en-GB
  • en-US
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  • nn-NO
  • nn-NB
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  • Other locale
More languages
Output format
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