The addition of mist to a flow of steam or gas offers enhanced cooling for many applications, including cooling of gas turbine blades. The enhancement mechanisms include effects of mixing of mist with the gas phase and effects of evaporation of the droplets. An impinging mist flow is attractive for study because the impact velocity is relatively high and predictable. Water droplets, less than 1...

Synthetic jets have been identified and utilized widely in airflow control applications. These jets of air are usually created by the use of compressed air, or an electromechanically driven vibrating platform. All of these approaches produce desired results in airflow-control such as enhanced lift and increased maneuverability. Despite the results however, system weight, size, response time and...

an experimental study has been performed to investigate the flow physics of an under-expanded axisymmetric supersonic jet exhausting transversely from a flat plate into a subsonic compressible cross flow. the goal was to study the effects of boundary layer thickness ratio (δ/d) and the jet to free stream dynamic pressure ratio (j) on surface pressure. the resulting measurements distinctly show ...

in this study, the effect of suction and the parameters such as suction amplitude, suction coefficient and suction jet length on naca0012 was evaluated. the turbulence employed model was the rsm model. suction jet is located in 10% of the chord length. the range of suction jet entrance velocity was selected from 0.1 to 0.5 of freestream velocity. the maximum increase in lift to drag ratio was s...

The convective heat transfer in a turbulent boundary layer (TBL) on flat plate is enhanced using an artificial intelligence approach based linear genetic algorithms control (LGAC). actuator set of six slot jets crossflow aligned with the freestream. An open-loop optimal periodic forcing defined by carrier frequency, duty cycle and phase difference between actuators as parameters. laws are optim...

A turbulent drag-reduction method employing synthetic jet sheets in a channel flow is investigated by direct numerical simulations. The are wall-parallel and produced periodic blowing suction from pairs of thin slots aligned with the main streamwise flow. By varying slot height jet-sheet angle respect to spanwise direction, margins between $10\,\%$ $30\,\%$ obtained for angles $45 ^{\circ }$ $7...

3 Slotted-Circus (Formal Definition) 10 3.1 Observational Variables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 3.2 Required Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 3.2.1 Accepted and Refused Events and Equivalent Traces . . . . . . . . . . . . . 11 3.2.2 Null Slots . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...

Abstract Turbulent flames with compositionally inhomogeneous mixtures are common in many combustion systems. jet a circular nozzle burner were used earlier to study the impact of mixtures, and these studies showed that radius affects flame stability. Accordingly, planar turbulent created concentric flow slot (CFSB) avoid this effect present study. The stability characteristics, mixing field str...

This paper gives the description of the TGB system submitted to the Aspect Based Sentiment Analysis Task of SemEval-2016 (Task 5). The system is built on linear binary classifiers for aspect category classification (Slot 1), on lexicon-based detection for opinion target expressions extraction (Slot 2), and on linear multi-class classifiers for sentiment polarity detection (Slot 3). We conducted...