Sökning: "turbulence damping"
Visar resultat 16 - 19 av 19 avhandlingar innehållade orden turbulence damping.
16. Studies of Transient and Pulsating flows with application to Hydropower
Sammanfattning : The rotational motion of a hydraulic turbine runner makes pulsating flows ubiquitous in different locations of the machine. The cyclic loading thus induced may generate large pressure forces acting periodically on both stationary and rotating parts. LÄS MER
17. Improved Flutter Prediction for Turbomachinery Blades with Tip Clearance Flows
Sammanfattning : Recent design trends in steam turbines strive for high aerodynamic loading and high aspect ratio to meet the demand of higher efficiency. These design trends together with the low structural frequency in last stage steam turbines increase the susceptibility of the turbine blades to flutter. LÄS MER
18. Theoretical magnetohydrodynamic and solidification studies of continuous strip casting
Sammanfattning : The continuous casting of steel strips has been under investigation and development for several decades. The aim of this development is to be able to cast steel strips in a thickness range from 1 to 10 mm. Today, there are basically two such methods: the single-belt caster and the twin-roll caster. LÄS MER
19. Acoustic modelling and testing of advanced exhaust system components for automotive engines
Sammanfattning : The increased use of the diesel engine in the passenger car, truck and bus market is due to high efficiency and lower fuel costs. This growing market share has brought with it several environmental issues for instance soot particle emission. LÄS MER