搜索结果: 1-15 共查到“water flow”相关记录30条 . 查询时间(0.078 秒)
As more gardeners and farmers add ground charcoal, or biochar, to soil to both boost crop yields and counter global climate change, a new study by researchers at Rice University and Colorado College c...
Coupling a SVAT heat and water flow model, a stomatal-photosynthesis model and a crop growth model to simulate energy, water and carbon fluxes in an irrigated maize ecosystem
Arid regions Irrigated maize Energy–water–carbon cycle Crop growth
2013/9/2
Irrigation is practiced on approximately 20% of the agricultural land in the world and accounts for approx-imately 40% of the total crop production. However, with ...
Simultaneous 3D measurement of the translation and rotation of finite size particles and the flow field in a fully developed turbulent water flow
Inertial particles fully developed turbulence Lagrangian Particle Tracking
2012/5/31
We report a novel experimental technique that measures simultaneously in three dimensions the trajectories, the translation, and the rotation of finite size inertial particles together with the turbul...
含沙水流中翼型空蚀磨损试验（Experiment on Damage of Cavitation and Silt Abrasion for Hydrofoil in Silt-laden Water Flow）
翼型 含沙水流 空蚀 磨损
2010/12/29
模拟水力机械内部流动环境，在收缩－扩散型试验段中对翼型进行了空蚀、磨损及两者联合作用破坏试验，观测表面破坏微观形貌并测量破坏深度分布规律。空蚀形貌呈较为规则的近圆独立蚀坑，其分布较为随机。根据颗粒对表面作用的不同，磨损形貌表现为冲击、铲削、犁耕及切削等类型。在较高固相质量浓度下，联合作用破坏形貌大多在极端的角度(90°或0°)以颗粒磨损形式出现，其尺度特征在翼型表面随位置后移远大于磨损形貌，宏观破...
Application of Soil Water Flow Theory in Field Simulation
Application Soil Water Flow Theory Field Simulation
2009/10/28
A numerical model based on a finite difference approximation of the basic
differential equation for soil water flow is described. The equation includes a
sink term representing moisture extraction b...
Modelling of Unsaturated Flow in Heterogeneous Soils Part 11:Stochastic Simulation of Water Flow over a Field
Unsaturated Flow Heterogeneous Soils Stochastic Simulation
2009/10/27
Modelling of soil moisture conditions in spatially variable fields is treated using
stochastic methods. Spatial variability of moisture content in a vegetation covered
field is partly caused by fiel...
Modelling of Unsaturated Flow in Heterogeneous Soils Part I:Deterministic Simulations of Water Flow in Soil Profiles
Unsaturated Flow Heterogeneous Soils Deterministic Simulations
2009/10/27
Water flow and solute transport in the upper soil layers are processes which are
of importance in many hydrological and agricultural applications. These processes
are occurring in a medium which has...
Spatial Variability of Physical Parameters and Processes in Two Field Soils Part II:Water Flow at Field Scale
Spatial Variability Physical Parameters Two Field Soils Field Scale
2009/10/26
The horizontal variability of soil hydraulic parameters, water content and suction
mcasurcd within two research ficlds in Denmark is analyzed and discussed.
A numerical analysis of the flow in the t...
Spatial Variability of Physical Parameters and Processes in Two Field Soils Part I:Water Flow and Solute Transport at Local Scale
Spatial Variability Physical Parameters Two Field Soils Local Scale
2009/10/26
Natural field systems exhibit a large degree of soil heterogeneity which affects
the movement of water and solutes and thus leads to highly varying observations
of water contcnt and solute concentra...
CFD Code Validation against Stratified Air-Water Flow Experimental Data
CFD Code Validation Air-Water Flow Experimental Data
2009/9/3
Pressurized thermal shock (PTS) modelling has been identified as one of the most important industrial needs related to nuclear reactor safety. A severe PTS scenario limiting the reactor pressure vesse...
Decrease of Leaf Water Potential and Leaf Injury of Tea Plant (Thea sinensis L.) Subject to Cold Winter Wind in Sanin Region of Japan : II. Increase of water flow resistance inside the plant contributes to decrease of leaf water potential
Cold wind injury Leaf water potential Transpiration rate Water flow resistance Tea
2009/8/4
In the previous report, we indicated that cold wind injury of tea leaf in Sanin region occurred under decreases of leaf water potential (ΨL) caused by low temperature and strong wind. We attempted to ...
Estimating Percolation and Lateral Water Flow on Sloping Land in Rainfed Lowland Rice Ecosystem
Percolation Rice Toposequence Water table
2009/7/24
Quantifying water losses in paddy fields assists estimation of water availability in rainfed lowland rice ecosystem. Little information is available on water balance in different toposequence position...
On the Deep Water Flow into the Baltic
Water Baltic sea
2009/6/15
On the Deep Water Flow into the Baltic.
Acid neutralization capacity measurements in surface and ground waters in the Upper River Severn, Plynlimon：from hydrograph splitting to water flow pathways
Acid Neutralization Capacity water flow pathways hydrograph splitting
2009/6/8
Acid Neutralization Capacity (ANC) data for ephemeral stream and shallow groundwater for the catchments of the upper River Severn show a highly heterogeneous system of within-catchment water flow path...
Water flow pathways and the water balance within a head-water catchment containing a dambo：inferences drawn from hydrochemical investigations
Water flow pathways hydrochemical investigations water balance
2009/5/27
Dambos, seasonally saturated wetlands, are widespread in headwater catchments in sub-Saharan Africa. It is widely believed that they play an important role in regional hydrology but, despite research ...