نتایج جستجو برای: supersonic air intake
تعداد نتایج: 315779 فیلتر نتایج به سال:
A model based control scheme is designed to regu late the cylinder air charge of a camless multicylinder engine for unthrottled operation The controller con sists of a feedforward and an adaptive feedback scheme based on a control oriented model of the breathing process of an engine equipped with electro hydraulic springless valve train The nonlinear control scheme is designed to achieve cylind...
Two interacting supersonic water jets and collisions of a jet with an aluminum target are studied experimentally by hydrodynamic simulations. Supersonic form, when shocks generated underwater electrical explosions conical wire arrays converge. The supplied ∼250 kA, ∼1 μs rise time current pulse. Underwater explosion two placed face to produces propagating in air velocities ∼2.5×103 m/s leading ...
As part of an international intercomparison project, the weak temperature gradient (WTG) and damped gravity wave (DGW) methods are used to parameterize large-scale dynamics in a set of cloud-resolving models (CRMs) and single column models (SCMs). The WTG or DGW method is implemented using a configuration that couples a model to a reference state defined with profiles obtained from the same mod...
Over the last century, northeast Pacific coastal sea surface temperatures (SSTs) and land-based surface air temperatures (SATs) display multidecadal variations associated with the Pacific Decadal Oscillation, in addition to a warming trend of ∼ 0.5-1 °C. Using independent records of sea-level pressure (SLP), SST, and SAT, this study investigates northeast (NE) Pacific coupled atmosphere-ocean v...
This paper reports an exploratory experimental cold flow test of the first mode in a multi-mode propulsion concept. A small model of a wallmounted pulse detonation rocket (PDR) ejecting into a duct was fabricated and integrated into the supersonic wind tunnel at the University of Texas at Arlington (UTA). Although supersonic testing proved to be inconclusive, the static tests showed that pulsed...
Air breakdown in sub- and supersonic flows induced by the subcritical streamer discharge effect of initiator shape on conditions are studied. Experiments with varying electric field strength air pressure show that ability electromagnetic vibrators to initiate has a resonant character. Placing small vibrator microwave beam allows one which is significantly smaller than critical strength. The dep...
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