Informatics Publishing Limited

K. Sridharan ¹, M. S. Mohan Kumar ¹, N. S. Lakshmana Rao ¹

Affiliations
1 Department of Civil Engineering, Indian Institute of Science, Bangalore 560 012, IN

Abstract

Two layered models are gellerally accepted to represent groundwater flow in fractured media. This paper presents a rigorous numerical analysis of an aquifer - water table aquitard system, which may be applied for hard rock areas. In this study, the water table aquitard considered is compressible and the system is of two-layered nature. The model is quasi three dimensional and takes into account the vertical variations of head in the aquitard. The water table is treated as an unknown boundary.

A new iterative scheme for analysing aquifer-water table aquitard system has been presented. It has been found that rigorous analysis may be necessary in the well field solutions while approximate methods are sufficient for a regional study in hard rock areas.

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A. Achutha Rao ¹, K. Sridharan ¹

Affiliations
1 Central Ground Water Board, Lucknow 226006, IN

Abstract

Vedavati River drainage basin covering an area of 24,200 km² falls in the monsoon depression zone and is prone to frequent drought conditions. The study is mainly directed to get as near a physical definition of the actual basin which would enable a systematic mathematical treatment. A mathematical model has been formulated and on the basis of this, a computer program was developed. The model was calibrated using field data and it is found useful in making reliable forecast of groundwater potential, for safe yield in order to prevent over exploitation.

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K. Sridharan ¹

Affiliations
1 Indian Institute of Science Bangalore, IN

Abstract

No Abstract.

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K. Sridharan ¹

Affiliations
1 Civil Engineering Department, Indian Institute of Science, Banglaore - 560 012, IN

Abstract

No Abstract.

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P. Nagachandrika ¹, K. Sridharan ¹, R. Sarathi ¹

Affiliations
1 Department of Electrical Engineering, Indian Institute of Technology Madras, Chennai- 600 036, IN

Abstract

An attempt has been made to understand the surface discharge resistance of epoxy molybdenum disulphide nanocomposite material under AC and DC voltages. To characterize the material, surface charge accumulation studies and basic dielectric properties of the material viz., permittivity and tan(𝛿) of the material were carried out. Also the level of degradation of insulating material characterized through contact angle measurement and by surface roughness measurements. The results of the study conclude that 0.5 wt% of epoxy nanocomposites showed high discharge resistance.

Keywords

Nanocomposite, Surface Discharge, MoS2, surface roughness

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