نتایج جستجو برای: cascade flow
تعداد نتایج: 523988 فیلتر نتایج به سال:
Abstract The paper presents details of a unique experimental facility along with necessary accessories and instrumentation for testing steam turbine cascade blades in wet nucleating steam. A rotor tip is chosen flow investigations. Cascade inlet measurements show uniform conditions dry air mixture different ratios. Exit surveys indicate that excellent periodicity obtained. Blade surface static ...
Abstract This paper numerically investigates the aerodynamic performance of T106A low-pressure turbine based with different inflow conditions at moderate Reynolds number by using high computing on order unstructured methods. Two respectively uniform and disturbed are considered, while for latter a small circular cylinder is placed upstream cascade to generate wake turbulence as long-standing di...
Vertebrate laterality, which is manifested by asymmetrically placed organs [1], depends on asymmetric activation of the Nodal signaling cascade in the left lateral plate mesoderm [2]. In fish, amphibians, and mammals, a cilia-driven leftward flow of extracellular fluid acts upstream of the Nodal cascade [3-6]. The direct target of flow has remained elusive. In Xenopus, flow occurs at the gastro...
We provide numerical evidence for the existence of a cascade of filament instabilities in the surface quasigeostrophic system for rotating, stratified flow near a horizontal boundary. The cascade involves geometrically shrinking spatial and temporal scales and implies the singular collapse of the filament width to zero in a finite time. The numerical method is both spatially and temporally adap...
Differential elliptic flow out to p⊥ ∼ 5 GeV/c is calculated using the MPC elastic parton cascade model for Au+Au at Ecm ∼ 130 A GeV. The results are compared to recent STAR/RHIC elliptic flow data. An elliptic flow pattern comparable to the data seems to require initial parton densities at least twice higher than the predicted by the HIJING model. Elliptic flow is also shown to be sensitive to...
design models of multi- stage, axial flow compressor are developed for gas turbine engines. axial flow compressor is one of the most important parts of gas turbine units. therefore, its design and performance prediction are very important. one-dimensional modeling is a simple, fast and accurate method for performance prediction of any type of compressors with different geometries. in this appro...
چکیده در این پایان¬نامه ما ابتدا به معرفی و شناخت سیستم¬های uwbدر تکنولوژی cmosپرداخته و از آنجایی که نویز در این سیستم¬ها بسیار مهم است، به تکنیک¬های مورد استفاده برای بهینه¬سازی نویز می¬پردازیم. در ادامه به مرور چند ساختار تقویت-کننده کم نویز که به ترتیب شامل تقویت¬کننده distributed، تقویت¬کننده cascade، تقویت¬کننده سورس-مشترک با سلف دیژنراسیون،تقویت¬کننده cascade با تکنیک اینورتر با فیدبک م...
The pressures and resistances of a bubble humidifier (Bennett Cascade) and a blow-by humidifier (Fisher and Paykel) were measured and computed at gas flow rates from 4.5 to 100 litre min-1. Pressures increased with flows, with the Bennett pressures being greater at all flows. The resistance of the Fisher-Paykel increased with flows, but remained less than that of the Bennett. An inverse resista...
One of the most intriguing motivations for studying relativistic nucleus-nucleus collisions is the unique opportunity to explore compressed and excited nuclear matter in the laboratory. A signature of compression is the collective sidewards flow predicted theoretically by nuclear fluid dynamics' and classical microscopic many-body s i m u ~ a t i o n s . ~ Recently, the predicted collective sid...
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