In this work, computational fluid dynamics simulations are carried out to assess the ability of control surfaces alleviate or suppress transonic buffet. Among available surfaces, upper trailing edge flaps were considered since they modify aerofoil pressure distribution and fix shock at an upstream position. Spoilers also studied as produce a similar effect by interfering with disturbance propag...

The aim is to study beam characteristics at large distances when focusing on the electron component. In particular, to investigate the utility of spoilers with various thicknesses as an electron source, as well as the effect of different spoiler-to-surface distances (STSD) on the beam characteristics and, consequently, on the dose in the superficial region. A MC model of a 15 MV Varian accelera...

Spoilers in the ILC Beam Delivery System are required to survive a minimum of 1-2 direct impacts from each energetic electron or positron bunch of charged particles without failure, in addition to maintaining low geometric and resistive wall wakefields. The transient shock wave resulting from rapid localised beam heating and its implications for spoiler design are studied using ANSYS. The reali...

Pilot noncompliance with checklists has been associated with aviation accidents. This noncompliance can be influenced by complex interactions among the checklist, pilot behavior, aircraft automation, device interfaces, and policy, all within the dynamic flight environment. We present a method that uses model checking to evaluate checklist-guided pilot behavior while considering these interactio...

Third parties and independents face several hurdles to success in the United States because of the two-party system. One of those hurdles is state ballot access laws, which place obstacles in the way of minor candidates that major-party candidates do not face. Research into the phenomenon of third-party performance has shown that third-party candidates do better in non-competitive races when th...

Abstract In this paper, for steel pipe members with a slenderness ratio of 120, spoilers different numbers and spacings are arranged to test the vibration reduction effect. Wind tunnel results show that 7 sets size 1D×0.5D can basically suppress member. When spoiler spacing is 1D~4D, maximum amplitude more than 90%.