Results 21 to 30 of about 1,291,382 (295)

Boundary layer structure in turbulent thermal convection and its consequences for the required numerical resolution [PDF]

open access: yes, 2010
Results on the Prandtl-Blasius type kinetic and thermal boundary layer thicknesses in turbulent Rayleigh-B\'enard convection in a broad range of Prandtl numbers are presented.
Blasius H   +14 more
core   +3 more sources

Modeling the Impact of Atmospheric Warming on Staple Crop Growth in China in the 1960s and 2000s

open access: yesAtmosphere, 2020
Responses of crop growth to climate warming are fundamental to future food security. The response of crops to climate change may be subtly different at their growing stages.
Qing Zhang   +4 more
doaj   +1 more source

Impacts of an unknown daytime HONO source on the mixing ratio and budget of HONO, and hydroxyl, hydroperoxyl, and organic peroxy radicals, in the coastal regions of China [PDF]

open access: yesAtmospheric Chemistry and Physics, 2015
Many field experiments have found high nitrous acid (HONO) mixing ratios in both urban and rural areas during daytime, but these high daytime HONO mixing ratios cannot be explained well by gas-phase production, HONO emissions, and nighttime hydrolysis ...
Y. Tang   +6 more
doaj   +1 more source

Chemical characterization and source identification of PM2.5 at multiple sites in the Beijing–Tianjin–Hebei region, China [PDF]

open access: yesAtmospheric Chemistry and Physics, 2017
The simultaneous observation and analysis of atmospheric fine particles (PM2.5) on a regional scale is an important approach to develop control strategies for haze pollution.
X. Huang   +13 more
doaj   +1 more source

Role of the subtropical westerly jet wave train in the eastward-moving heavy rainfall event over southern China in winter: A case study

open access: yesFrontiers in Earth Science, 2023
Under the wintertime background of westerly flows, heavy rainfall often occurs first over southwestern China and then spreads eastward downstream to southeastern China, causing serious impact on a large scope of southern China.
Juyue Yin   +8 more
doaj   +1 more source

A ‘receptive’ boundary layer [PDF]

open access: yesJournal of Fluid Mechanics, 2010
Receptivity is the process which describes how environmental disturbances (such as gusts, acoustic waves or wall roughness) are filtered by a boundary layer and turned into downstream-growing waves. It is closely related to the identification of initial conditions for the disturbances and requires knowledge of the characteristics of the specific ...
openaire   +2 more sources

Extreme fluctuations of vertical velocity in the unstable atmospheric surface layer [PDF]

open access: yesNonlinear Processes in Geophysics, 2014
In this paper, we propose a new method to extract the extreme fluctuations of vertical velocity in the unstable atmospheric surface layer. Unlike the commonly used conditional sampling analysis, this method defines a threshold by using a systematical ...
L. Liu, F. Hu, X.-L. Cheng
doaj   +1 more source

An experiment on the adiabatic compressible turbulent boundary layer in adverse and favourable pressure gradients [PDF]

open access: yes, 1972
A wind-tunnel model was developed to study the two-dimensional turbulent boundary layer in adverse and favourable pressure gradients with out the effects of streamwise surface curvature.
Gran, R. L., Kubota, T., Lewis, J. E.
core   +1 more source

Insights into aerosol chemistry during the 2015 China Victory Day parade: results from simultaneous measurements at ground level and 260 m in Beijing [PDF]

open access: yesAtmospheric Chemistry and Physics, 2017
Strict emission controls were implemented in Beijing and adjacent provinces to ensure good air quality during the 2015 China Victory Day parade. Here, we conducted synchronous measurements of submicron aerosols (PM1) at ground level and 260 m on a ...
J. Zhao   +11 more
doaj   +1 more source

Influence of higher order effects on the vortex instability of thermal boundary layer flow in a wedge shaped domain [PDF]

open access: yes, 2005
We reconsider the onset of streamwise vortices in the thermal boundary layer flow induced by an inclined upward-facing heated semi-infinite surface placed within a Newtonian fluid.
Paul, M.C., Rees, D.A.S., Wilson, M.
core   +1 more source

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