Zobrazeno 1 - 10
of 80
pro vyhledávání: '"Chowdhuri Subharthi"'
Autor:
Chowdhuri, Subharthi, Peltola, Olli
The interaction between a dense forest canopy and atmosphere is a complex fluid-dynamical problem with a wide range of practical applications, spanning from the aspects of carbon sequestration to the spread of wildfires through a forest. To delineate
Externí odkaz:
http://arxiv.org/abs/2409.15862
Autor:
Chowdhuri, Subharthi, Banerjee, Tirtha
The verification of whether small-scale turbulence is isotropic remains a grand challenge. The difficulty arises because the presence of small-scale anisotropy is tied to the dissipation tensor, whose components require the full three-dimensional inf
Externí odkaz:
http://arxiv.org/abs/2405.00856
Autor:
Chowdhuri, Subharthi, Banerjee, Tirtha
In turbulent flows, energy production is associated with highly organized structures, known as coherent structures. Since these structures are three-dimensional, their detection remains challenging in the most common situation, when single-point temp
Externí odkaz:
http://arxiv.org/abs/2309.04853
Autor:
Chowdhuri, Subharthi, Banerjee, Tirtha
Turbulent signals are known to exhibit burst-like activities, which affect the turbulence statistics at both large and small scales of the flow. In our study, we pursue this problem from the perspective of an event-based framework, where bursting eve
Externí odkaz:
http://arxiv.org/abs/2301.10375
Autor:
Iacobello, Giovanni, Chowdhuri, Subharthi, Ridolfi, Luca, Rondoni, Lamberto, Scarsoglio, Stefania
Publikováno v:
Commun. Phys. 6, 91 (2023)
Time irreversibility is a distinctive feature of non-equilibrium phenomena such as turbulent flows, where irreversibility is mainly associated with an energy cascade process. An Eulerian, multiscale analysis of time irreversibility in wall-bounded tu
Externí odkaz:
http://arxiv.org/abs/2209.03401
We investigate the intermittent dynamics of momentum transport and its underlying time scales in the near-wall region of the neutrally stratified atmospheric boundary layer in the presence of a vegetation canopy. This is achieved through an empirical
Externí odkaz:
http://arxiv.org/abs/2110.06698
Large-scale intermittency is a widely observed phenomenon in convective surface layer turbulence that induces non-Gaussian temperature statistics, while such signature is not observed for velocity signals. Although approaches based on probability den
Externí odkaz:
http://arxiv.org/abs/2102.07102
Publikováno v:
Physics of Fluids 32, 115107 (2020)
The characterization of heat and momentum fluxes in wall-bounded turbulence is of paramount importance for a plethora of applications, ranging from engineering to Earth sciences. However, how the turbulent structures associated with velocity and temp
Externí odkaz:
http://arxiv.org/abs/2008.04420
Publikováno v:
AIP Advances (2020)
We survey temperature patterns and heat transport in convective boundary layers (CBLs) from the perspective that these are emergent properties of far-from-equilibrium, complex dynamical systems. We introduce a two-temperature (2T) toy model to define
Externí odkaz:
http://arxiv.org/abs/2007.08161
Publikováno v:
Environmental Fluid Mechanics-2020
The simultaneous observations from a Doppler weather radar and an instrumented micrometeorological tower, offer an opportunity to dissect the effects of a gust front on the surface layer turbulence in a tropical convective boundary layer. We present
Externí odkaz:
http://arxiv.org/abs/2006.07126