2. Conference Papers

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1983 - 19895

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Start date: 1980End date: 1989

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    Interactions of a group of vertical cylinders in water waves
    (1989) Reddy, K.I.S.; Kumar, B.N.; Dattatri, J.
    An analytical procedure involving Bessel functions is applied to investigate the wave interactions with a group of vertical circular cylinders. Considering the scattered wave at each cylinder in terms of Hankel functions, the inter-scattering of the waves from other cylinders is considered in the investigations. Wave forces and hydrodynamic coefficients in terms of the diffraction characteristics of single cylinders are evaluated for various groups of cylinders. A two cylinder group is considered for experimental verification of the theory. A comparison of the present procedure with boundary element and finite element methods is made.
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    ELECTRO-CHEMICAL BEHAVIOUR OF COATED REINFORCEMENT IN CEMENT CONCRETE.
    (1987) Patil, B.T.; Gajendragad, M.R.; Ramchandran, T.; Ranganna, G.; Sudhaker, Nayak, H.V.
    Concrete constructions exposed to marine environments eventually suffer from corrosion of embedded steel rods, in its advanced state, this corrosion can crack the concrete and weaken the structure. The behaviour of paint coated reinforcements in cement concrete containing different amounts of chloride through an electrode polarization technique. Coated steel rods perform better as far as corrosion of rebar is concerned.
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    CONVECTIVE HEAT TRANSFER BY AXIAL FLOW IN AN ANNULUS WITH POROUS LINING.
    (1983) Channabasappa, M.N.; Umapathy, K.G.; Nayak, I.V.
    This paper covers a theoretical model of convective heat transfer by axial flow in an annulus bounded by two long concentric circular cylinders, the outer surface of the inner cylinder being provided with a non-erodible porous lining and the two bounding surfaces being maintained at constant temperatures. The analysis makes use of the velocity slip and the temperature slip boundary conditions at the interface and employs Brinkman model to obtain the velocity field in the porous zone. The influence of various parameters on the velocity and temperature fields is studied.
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    STUDIES ON SUBSURFACE WATER POTENTIAL AND QUALITY FOR IRRIGATION.
    (1987) Ranganna, G.; Gajendragad, M.R.; Naganna, C.; Gurappa, K.M.; Nayak, I.V.; Chandrakantha, G.; Rao, P.R.M.
    The region of Western Ghats comprising the Sahyadri Mountain chain in southern India has remained underdeveloped notwithstanding its rich natural resources and flora and fauna. The Aladangadi Hole (river) basin is one such area. Although the basin receives very heavy rainfall, it faces water scarcity problems and thus has remained undeveloped. Intense development in the coastal region has created increasing demands for fresh water. As a pilot study, hydrological investigations for the yield, quality of water and soil, aquifer parameters, soil-water-crop compatibility, groundwater potential and Landsat imagery studies have been undertaken. This paper highlights several aspects of irrigation for an all-round development of the basin.
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    SOLAR INSOLATION AT SURATHKAL - WEST COAST OF INDIA.
    (1986) Nijaguna, B.T.
    In an attempt to obtain the applicable correlation for the estimation of solar intensity at Surathkal, the number of bright sunshine hours and actual solar insolation were monitored. Regression analysis of the measured data when fitted by a least squares technique resulted in constants in an Armstrong-Page type correlation on a monthly, seasonal and annual basis. The obtained correlations are least erroneous when compared with the actual measured data and are also more appropriate compared to estimates obtained from formulae reported by other studies.