The study of interactions of jet into cross flow at different longitudinal and transverse angles of jet was studied. The following components were designed and constructed: a low velocity wind tunnel to produce the uniform flow, a flat plate with a traverse injection system to simulate the jet injection, and a spatial rake to measure the total pressure. The tests were carried out at longitudina...

Some meteorological phenomena in South America develop quickly and take on large dimensions. These cause disasters for aviation, such as incidents accidents. Mesoscale convective complexes (MCCs) forced a commercial airplane into an emergency landing at Ezeiza International Airport Buenos Aires (Argentina) October 2018. The took off from São Paulo (Brazil) to Santiago (Chile) had alternate afte...

In this study, we investigate the structural characteristics of upper-level outflow and its impact on rapid intensification (RI) Typhoon Roke (2011), which experienced an evident transformation from equatorward to poleward during RI period. The simulations by Weather Research Forecasting Model suggest that extends 100 hPa 150 hPa, with warm core at around hPa. is enhanced ahead typhoon intensif...

introduction water vapor can spread in molecular, unstable and erratic phase and can also transfer by convection and advection process. this transfer happens from the earth and ocean surfaces to the atmosphere in hot air. this type of transfer is considered as the main pattern. in the studies of the atmosphere, one of the prominent factors to be considered is the complexity of water vapor and i...

The study of interactions of jet into cross flow at different longitudinal and transverse angles of jet was studied. The following components were designed and constructed: a low velocity wind tunnel to produce the uniform flow, a flat plate with a traverse injection system to simulate the jet injection, and a spatial rake to measure the total pressure. The tests were carried out at longitudina...

Ahvaz can be regarded as one of the most polluted cities in the world in terms of air pollution. Successive years of drought and weather conditions in recent years have resulted in particulate matter (PM10) concentration in Ahvaz. In this study, using probability distribution techniques, an appropriate threshold to identify the PM10 maximum extreme concentrations (MEC) has been detected. Based ...

Based on previous climate model simulations of a split of the polar jet stream during the late Pleistocene, we hypothesize that (1) 20-13.5 ka BP, season-toseason variation in the latitudinal maximum of the jet stream core led to enhanced wetness in the Great Basin, and (2) after 13.5 ka BP, northward movement of the jet stream resulted in increased aridity similar to today. We suggest that the...

Ahvaz can be regarded as one of the most polluted cities in the world in terms of air pollution. Successive years of drought and weather conditions in recent years have resulted in particulate matter (PM10) concentration in Ahvaz. In this study, using probability distribution techniques, an appropriate threshold to identify the PM10 maximum extreme concentrations (MEC) has been detected. Based ...

SUMMARY. An approximate analysis is given of a turbulent wall-jet beneath a stream moving at ocmatant ve1ooity. The results of this analysie are used to predict the drag of a cylindrical afterbody immersed in the jet from a front fan with short oowl at subsonio flight speeds. Graphs are presented tiioh allow rapid evaluation of afterbody drag for a range of jet pressure ratios and nacelle geane...