Browsing Division of Mechanical Sciences by Advisor "Sekhar, M"
Now showing items 1-18 of 18
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Analysis of Groundwater Systems Using Lumped and Distributed Hydrological Models: Applications in Indian Tropical Region
Groundwater is a critical resource for meeting agriculture, domestic, and industrial water demand, particularly in tropical regions of India. However, increasing groundwater extraction, erratic monsoonal rainfall, and ... -
Analysis Of Precipitation Controls On Hydrochemistry Of A Groundwater System : Application To Upper Cauvery Basin : South India
(2011-01-10)Groundwater chemistry is a function of recharge and the input chemistry of the rain, which gets transformed as it moves through the soil matrix. Apart from mineral transformations, anthropogenic activities are other external ... -
Analysis Of Solute Transport In Porous Media For Nonreactive And Sorbing Solutes Using Hybrid FCT Model
(Indian Institute of Science, 2006-07-06)The thesis deals with the numerical modeling of nonreactive and nonlinearly sorbing solutes in groundwater and analysis of the effect of heterogeneity resulting from spatial variation of physical and chemical parameters ... -
Assimilation of near-surface soil temperature and soil moisture in an unsaturated flow model: State and parameter estimation using synthetic and field experiments
Soil moisture is a key variable governing land surface hydrology, agricultural productivity, and climate dynamics, influencing crucial processes such as evapotranspiration, infiltration, and surface runoff. Accurate ... -
Estimation of Root Zone Soil Hydraulic Properties by Inversion of a Crop Model using Ground or Microwave Remote Sensing Observations
(2018-02-09)Good estimates of soil hydraulic parameters and their distribution in a catchment is essential for crop and hydrological models. Measurements of soil properties by experimental methods are expensive and often time consuming, ... -
Mathematical Modelling and Advanced Control Techniques for Irrigation Canal Management
Efficient water management in irrigation canal systems is vital for sustainable agriculture and environmental conservation. This thesis presents advanced control strategies to optimize water distribution and address the ... -
Modeling Salinity Impact on Ground Water Irrigated Turmeric Crop
(2018-04-18)Soils in irrigated fields are impacted by irrigation water quality. Salts in the irrigation water may accumulate in the soil depending on amount of leaching, the quality of water and type of ions present. Salinity is an ... -
Modelling and evaluation of nitrate transit times in groundwater systems
Transit time distribution is one of the fundamental descriptors of flow and transport behavior of catchments. Intensification of agriculture and consequent anthropogenic inputs of nitrate rich fertilizers in agricultural ... -
Modelling Of Single And Multiple Recharge Wells In Layered Aquifers
(2009-05-06)Artificial recharge and rainwater harvesting methods are being applied for mitigating effects of groundwater depletions in severe over-drafting urban and rural situations. When the aquifer to be recharged is situated at ... -
Numerical Modeling of Sediment Transport using ANUGA Sed: Application to Mahanadi River Basin, India
Soil erosion and sediment transport are natural processes primarily driven by water. However, excessive human interference through agriculture, urbanization, and the construction of water storage reservoirs has significantly ... -
Quantification of irrigation and crop water productivity using soil moisture dynamics
Estimating water budgets in agricultural fields is key to evaluating and improving water management. However, quantifying hydrological components remains a challenge, especially estimation of irrigation quantities and ... -
Soil Moisture Modelling, Retrieval From Microwave Remote Sensing And Assimilation In A Tropical Watershed
(2016-03-01)The knowledge of soil moisture is of pronounced importance in various applications e.g. flood control, agricultural production and effective water resources management. These applications require the knowledge of spatial ... -
Spatial downscaling and analysis of satellite and ground-based rainfall for hydrological modelling
Precipitation is a vital element of the global hydrological and energy cycles, which is intermittent and highly variable in both space and time. Accurate measurements of precipitation at various space and time scales are ... -
Stochastic Analysis Of Flow And Solute Transport In Heterogeneous Porous Media Using Perturbation Approach
(2009-04-16)Analysis of flow and solute transport problem in porous media are affected by uncertainty inbuilt both in boundary conditions and spatial variability in system parameters. The experimental investigation reveals that the ...