Sökning: "Arthur Rizzi"

Visar resultat 11 - 15 av 16 avhandlingar innehållade orden Arthur Rizzi.

1. 11. Scaling techniques using CFD and wind tunnel measurements for use in aircraft design

   Författare :Karl Pettersson; Arthur Rizzi; Henrik Alfredsson; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; CFD; wind tunnel; scaling; Reynolds number effect; Vehicle engineering; Farkostteknik;

   Sammanfattning : This thesis deals with the problems of scaling aerodynamic data from wind tunnel conditions to free flight. The main challenges when this scaling should be performed is how the model support, wall interference and the potentially lower Reynolds number in the wind tunnel should be corrected. LÄS MER

3. 12. Conceptual design and investigation of hydrogen-fueled regional freighter aircraft

   Författare :Kolja Seeckt; Arthur Rizzi; Petter Krus; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Vehicle engineering; Farkostteknik;

   Sammanfattning : This thesis presents the conceptual design and comparison of five versions of regional freighter aircraft based on the ATR 72. The versions comprise four baseline designs differing in their propulsion systems (jet/turboprop) and the fuel they use (kerosene/hydrogen). LÄS MER

4. 13. Adaptive-fidelity CFD for predicting flying qualities in preliminary aircraft design

   Författare :Maximilian Tomac; Arthur Rizzi; Christopher Jouannet; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Vehicle engineering; Farkostteknik;

   Sammanfattning : To reduce development cost and to avoid late design fixes in aircraft design, methods that are fast and economic in estimating the aerodynamic characteristics of complex flight vehicles at the preliminary design stage are desired. This work and thesis focus on the adaptive-fidelity CFD approach, with emphasis on the high end of the CFD tools available today. LÄS MER

5. 14. Towards Automated CFD for Engineering Methods in Aircraft Design

   Författare :Maximilian Tomac; Arthur Rizzi; Russ Cummings; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

   Sammanfattning : .... LÄS MER

7. 15. User Preferred Trajectories in Commercial Aircraft Operation: Design and Implementation

   Författare :Hanyo Vera Anders; Arthur Rizzi; Tobias Andersson; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; aeronautics; air traffic management; aircraft operation; flygteknik; flygledning; Engineering mechanics; Teknisk mekanik;

   Sammanfattning : This report describes how an aircraft creates and flies its User Preferred Trajectory from take-off to landing, based on the objectives and constraints the aircraft is subjected to from a technological and operational viewpoint. A basic description of commercial aircraft operation is given, with an emphasis on identifying the different stakeholders (Air Navigation Service Providers, Airline Operation Center, Pilot/Aircraft, Airport and Civil Aviation Authority). LÄS MER