Effect of Heat Source on Free Convection Fluid Flow in a Vertical Channel with Chemical Reaction

Effect of heat source on free convective fluid flow in a vertical porous channel with chemical reaction has been studied. The problem is solved analytically for approximate solutions for the velocity, temperature and concentration fields. Also, the Skin friction, rate of heat and mass transfer coefficients were derived and shown in tabular form. Effects of various parameters on the flow quantities are presented graphically and discussed. The result shows that there is an excellent agreement with related literatures

Geoelectric Investigation of the Subsurface Structures in Part of Gidan Kwano Campus of the Federal University of Technology, Minna, Nigeria

Geoelectric investigations of the subsurface structures of parts of the Gidan Kwano campus Federal University of Technology (F.U.T) Minna, Nigeria were carried out using vertical electrical soundings technique. The area lies within the Pre-Cambian Basement Complex of Northern Nigeria. This study was carried out with the aim of determining subsurface structures of the area for groundwater potentials and to possibly locate those areas that could be useful for civil engineering work at a very low risk. Thirty-six vertical electrical soundings along six profiles (A-F) were carried out during the geophysical survey. The survey was carried out on grid 500m x500m.  The data obtained were interpreted using computer based program named Zohdy. The result of the interpreted vertical electrical soundings (VES) curves reveals three distinct geo-electric curves types were delineated: K, H and HK-curves with H-type having the most prolific aquifer. The result also shows 3 geo-electric layers which were confirm by borehole lithology. The aquifers in the study area are likely to be found in the fractured basement layers of eastern and southeastern parts of the study area. The civil engineering work can be sited in the northern and southwestern parts of the study area which are the region of shallow basement