Sökning: "wind tunnel testing"
Visar resultat 16 - 20 av 26 uppsatser innehållade orden wind tunnel testing.
16. Simulation of thermal tests in the climatic wind tunnel CD7 at Scania Master thesis project in fluid mechanics
Master-uppsats, KTH/MekanikSammanfattning : The Swedish truck and bus manufacturer Scania has a number of test facilities to support the R&D department and for verification of vehicle properties. The latest addition is the climatic wind tunnel Chassis Dynamometer 7 (CD7) which can fit trucks and buses for full scale testing and maintain temperatures in the range from -35 to 50 degree Celsius in the flow circuit, furthermore it can generate both rain and snow conditions. LÄS MER
17. Investigation of blockage correction methods forfull-scale wind tunnel testing of trucks
Master-uppsats, KTH/FlygdynamikSammanfattning : In this work wall interference effects, experienced during full scale wind tunnel testing of trucks, are investigatedthrough simulations. Three different truck models are used, and a number of blockage correction methods areapplied on drag results from simulations in a wind tunnel environment. These are compared with open roadreference simulations. LÄS MER
18. Validation of CFD simulation with PIV measurements for Open Rotor Noise Predictions
M1-uppsats, KTH/MekanikSammanfattning : CROR means Contra--‐Rotating Open Rotor. Its efficiency is better than usual in aeronautics thanks to its geometry (open rotor and thus high bypass ratio) but also by adding a second rotor. Indeed it enables to recover the swirl loss of the first rotor. However, this engine is rarely used today in civil aviation for acoustic reasons. LÄS MER
19. CFD Investigation of Fluidic Momentum Injection as Alternative to Mechanical High Lift Devices for Boundary Layer Control
Master-uppsats, KTH/AerodynamikSammanfattning : Syftet med detta projekt i aerodynamik ar att prova en metod för kontroll av gränsskiktets beteende med luftinsprutning. En modern vingprofil vid transsonisk hastighet används, som liknar de som finns på de festa kommersiella flygplan. LÄS MER
20. CFD beräkning på en jetmotorinstallation
Uppsats för yrkesexamina på grundnivå, Akademin för innovation, design och teknikSammanfattning : 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. LÄS MER