in this research between 3-dimensional and axisymmetric modeling for movement of nano-particles in passing through a aerodynamic lens, and also between these models and famous model of wang & liu was compared. for this purpose, output of nano-particles penetration, divergence angel, and nano-particle velocity with wang & liu model was compared. geometrical model used for aerodynamic lens compar...

the present paper deals with the prediction of three-dimensional fluid flow and heat transfer in rib-roughened ducts of square cross-section. such flows are of direct relevance to the internal cooling system of modern gas turbine blades. the main objective is to assess how a recently developed variant of a cubic non-linear model (proposed by craft et al. (1999)), that has been shown to produce ...

Nest-site characteristics can have a strong impact on reproductive success in birds. Nest sites should simultaneously protect from predators, offer shelter and provide a favourable microclimate. We studied the relationship between three agents of natural selection (predators [i.e. Adders and birds/mammals], snowfall and microclimate), nest-site characteristics and reproductive success to determ...

Abstract Context Microclimate (fine-scale temperature variability within metres of Earth’s surface) is highly influential on terrestrial organisms’ ability to survive and function. Understanding how such local climatic conditions vary challenging measure at adequate spatio-temporal resolution. models provide the means address this limitation, but require as inputs, measurements, or estimations ...

in arid and semi-arid ecosystems, shrubs may act as fertility islands but theireffect may vary depending on their morphology and ecological impacts. this research wasaimed to study effect of three shrubs scariola orientalis, astragalus heratensis, and rosapersica on soil properties and on the microclimate conditions (temperature, luminance, andsoil moisture) of their understory in the steppe ra...

The profile of urban microclimates is important in many engineering fields, such as occupant’s thermal comfort and health, other building engineering. To predict the microclimate, this study applies artificial neural network long short-term memory predictive models, an microclimate dataset was obtained with a long-term monitoring from year 2017 to 2019 5-min resolution including temperature, re...

Greening cities is a key solution to improve the urban microclimate and mitigate impact of climate change. However, effect tree planting on pollutant dispersion in streets still debated topic. To shed light this issue, we present wind-tunnel experiment aimed at investigating trees street canyon ventilation. An idealized district was simulated by an array blocks, two rows model were arranged sid...