Research Paper Welding
1. Effect of welding parameters on pitting corrosion rate of pulsed current micro plasma arc welded AISI 304L sheets in 1N HCl

Kondapalli Siva Prasad; Chalamalasetti Srinivasa Rao; Damera Nageswara Rao

Volume 3, Issue 1 , Summer and Autumn 2013, Pages 1-11

  Austenitic stainless steel sheets have gained wide acceptance in the fabrication of components, which require high temperature resistance and corrosion resistance such as metal bellows used in expansion joints in aircraft, aerospace and petroleum industries. In the case of single pass welding of thinner ...  Read More

Research Paper Plates and Shells
2. Study on buckling of steel cylindrical shells with an elliptical cutout under combined loading

Abdolhossein Fereidoon; Kamal Kolasangiani; Amin Akbarpour; Mahmoud Shariati

Volume 3, Issue 1 , Summer and Autumn 2013, Pages 13-25

  In this paper, simulation and analysis of thin steel cylindrical shells with elliptical cutouts under oblique loading were studied using finite element method. First, the numerical results were validated by the results of experimental test performed by an INSTRON 8802 servo hydraulic machine. Also, the ...  Read More

Research Paper Manufacturing Processes
3. Multi-objective optimization and analysis of electrical discharge machining process during micro-hole machining of D3 die steel employing salt mixed de-ionized water dielectric

I. Shivakoti; G. Kibria; S. Diyaley; B. B. Pradhan

Volume 3, Issue 1 , Summer and Autumn 2013, Pages 27-39

  Correct selection of manufacturing condition is one of the most important aspects which should be considered in the majority of manufacturing processes,  particularly in the process related to advanced machining process like electrical discharge machining. In electrical discharge machining (EDM), ...  Read More

Research Paper Fluid Mechanics
4. Investigation of electrokinetic mixing in 3D non-homogenous microchannels

J. Jamaati; H. Niazmand; M. Renksizbulut

Volume 3, Issue 1 , Summer and Autumn 2013, Pages 41-52

  A numerical study of 3D electrokinetic flows through micromixers was performed. The micromixers considered here consisted of heterogeneous rectangular microchannels with prescribed patterns of zeta-potential at their walls. Numerical simulation of electroosmotic flows within heterogeneous channels requires ...  Read More

Research Paper Heat and Mass Transfer
5. Chemical reaction and radiation effects on MHD free convection flow through a porous medium bounded by a vertical surface with constant heat and mass flux

T. Sudhakar Reddy; M. C. Raju; S. V. K. Varm

Volume 3, Issue 1 , Summer and Autumn 2013, Pages 53-62

  In the present paper, an analysis was carried out to investigate effects of radiation on a free convection flow bounded by a vertical surface embedded in a porous medium with constant suction velocity. It was under the influence of uniform magnetic field in the presence of a homogenous chemical reaction ...  Read More

Research Paper Heat and Mass Transfer
6. Free convection in a 3D chamber with local cooling and heating

M. Nasiri; B. Ghasemi

Volume 3, Issue 1 , Summer and Autumn 2013, Pages 63-74

  This paper modeled heating air of a room through examining free convection in a 3D chamber. The chamber had cold and hot sources with Tc and Th temperatures, respectively. Its other walls were adiabatic. This study aimed at predicting effect of temperature difference, displacement of hot and cold sources ...  Read More

Research Paper Fluid Mechanics
7. Derivation of turbulent energy in a rotating system

S. F. Ahmed

Volume 3, Issue 1 , Summer and Autumn 2013, Pages 75-83

  Energy equation for turbulent flow in a rotating system was derived in terms of second order correlation tensors, where the correlation tensors were functions of space coordinates, distance between two points and time. To reveal the relationship of turbulent energy between two points, one point was taken ...  Read More