In this work, the influence of entropy generation analysis for an electrically conducting Casson fluid flow with convective boundary conditions has been numerically studied. The governing equations are analyzed numerically using weighted residual methods. Subsequently, the residuals were minimized using two different approaches of weighted residual...

By Obalalu Adebowale Martins, Kazeem Issa, Abdulrazaq Abdulraheem, Ajala Olusegun Adebayo, Adeosun Adeshina Taofeeq, Oluwaseyi Aliu, Adebayo Lawal Lanre, Wahaab Adisa Fatai

The lungs are the pair of organs where very complex internal microstructure provides gas exchange as the vital process of living organisms. This exchange in humans occurs within only 300g of tissue but on the surface of millions of alveoli with the total surface area of around 130m2. The extremely complex microstructure consists of micron-size inte...

By Milos Kojic

In the present paper, M05-2X/6-311+G(d,p) level of theory was used to investigate antiradical activity of cyanidin towards highly damaging radical species (.OH, .OCH3, .OOH and .OOCH3). The applied method successfully reproduces the values of reaction enthalpies (ΔHBDE, ΔHIP, and ΔHPA). These parameters are important to determine ...

By Dejan Milenković, Jelena Đorović, Edina Avdović, Žiko Milanović, Marko Antonijević

This work deals with fatigue behaviour of cracked aircraft structural components under cyclic loads of constant amplitudes and load spectrum. This investigation is focused on developing efficient and reliable computational methods for fatigue life estimation of cracked aircraft lugs under cyclic loads of constant amplitude and load spectrum. For cr...

By Katarina Maksimovic, Slobodanka Boljanovic, Mina Djuric, Ivana Vasovic Maksimovic, Mirko Maksimovic

Nowadays, finite element analysis is a well-assessed technique which enables investigation of blood vessels behavior under different boundary conditions. Given the rapid progression of both medical imaging techniques and computational methods, the challenge of using the simulation of human arteries such as carotid arteries to address different medi...

By Smiljana Djorovic, Igor Saveljic, Nenad Filipovic

In this paper, the effects of chemical reaction on unsteady MHD flow of viscous incompressible electrically conducting fluid past an impulsively started oscillating vertical plate with variable temperature and constant mass diffusion in the presence of Hall current have been presented. The dimensionless governing partial differential equations of t...

By B. Prabhakar Reddy, Josephat Peter

A Quick Adaptive Galerkin Finite Volume (QAGFV) solution of Cauchy momentum equations for plane elastic problems is presented in this research. A new damping coefficient is introduced to preserve the efficiency of the iterative pseudo-explicit solution procedure. It is shown that the numerical oscillations are not only effectively damped by the pro...

By Saeed Reza Sabbagh Yazdi, Tayebeh Amiri, Saeed Asil Gharebaghi

Improvement of the airfoil NACA 4415 aerodynamic performances by flow control using a passive technique was achieved in this study. Gothic-shaped vortex generators were added at the profile upper surface. Vortex Generators (VG) were used to avoid boundary layer separation at the profile trailing edge, thus reducing the drag force and improving aero...

By Hocine Hares, Ghazali Mebarki, Mourad Brioua, Mahieddine Naoun

The present investigation represents a study on the effects of heat and mass transfer flow in the presence of couple stress coefficient, heat source parameter, radiation parameter, chemical reaction parameter and Schmidt number using nanofluids over a stretching sheet. The governing partial differential equations are reduced to ordinary differentia...

By Meruva Parvathi, Appikatla Leela Ratnam, Malaraju Chengal Raju

During the total or partial hip replacement procedure, a damaged part of the hip joint is replaced with an artificial one. Both types of procedures include removal and replacement of the femoral head. After the femoral head is removed, an implant is inserted into the hollow femur. When the healing process starts, the newly formed bone interlocks wi...

By Aleksandra Vulovic, Nenad Filipovic