In this article, we consider the magnetohydrodynamic (MHD) nanofluid flow over a rotating stretchable disk through porous medium. For porous medium, Darcy’s relation is…
In this article, we consider the magnetohydrodynamic (MHD) nanofluid flow over a rotating stretchable disk through porous medium. For porous medium, Darcy’s relation is used. It also encompassed the impact of nanoparticles shape on MHD nanofluid flow and heat transfer. The effect of thermal radiation and Joule heating is also being considered.
Three categories of nanoparticles are taken into deliberation, i.e. copper, silver and titanium oxide. The nanofluid is made of pure water and various types of sphere- and lamina-shaped nanoparticles. By using appropriate similarity transformation, the governing partial differential equations are transformed to ordinary one. The coupled ordinary differential equations system is tackled numerically by bvp4c method.
The impact of various pertinent parameters, i.e. solid volume fraction, Hartman number, thermal radiations parameter, Reynolds number, Eckert number, porosity parameter and ratio parameter, on flow and Nusselt number with a fixed value of Prandtl number at 6.2 is discussed in details. The obtained results are presented in the concluding section. The lamina shape of nanoparticles in silver-water performed an excellent role on temperature distribution. The heat transfer rate of lamina shape in copper-water was found to be greater in the system of flow regime.
The authors have discussed the shape effect of nanoparticles on MHD nanofluid flow over a rotating stretchable disk through porous medium using three categories of nanoparticles, such as copper, silver and titanium oxide. To the best of the authors’ knowledge, this is the first study on mass and heat transfer nanofluid flow and no such study is yet published in literature. A detailed mathematical analysis has also to be carried out to prove the regularity of model. The authors believe that the numerical results are original and have not been copied from any other sources.
The aim of this study is to examine the perceptions of consumers on Islamic banking and finance in Pakistan. Islamic finance is an emerging phenomenon, and its survival depends on the availability, affordability and awareness. This paper attempts to fill the gap in the literature by exploring the perceptions of consumers and bankers in an attempt to gain insights so that the availability of products and awareness can be increased.
The study uses a regression model by using perception as a dependent variable and awareness, knowledge and religious motivation as independent variables. Primary data is collected using 150 questionnaires distributed amongst finance students in several universities and employees of Islamic banks in the Khyber Pakhtunkhwa (KPK) Province of Pakistan.
The findings reveal that overall consumers’ perception is positive about Islamic banking and finance in Pakistan. Statistical analysis shows that awareness, knowledge and religiosity level have a positive influence on the perception of consumers about Islamic financing products and services in Pakistan. To improve the awareness and understanding, Islamic banks could make better marketing strategies and could increase their presence by mosque visits and conferences. Cooperation between the industry and scholars could help in providing more innovative products to the consumers.
There has been a limited amount of work carried out on the perceptions of consumers about Islamic banking in Pakistan. The present study represents the start of a larger context for examining Islamic banking practices in Pakistan. The findings of the study can be used as a reference in future research projects in the areas of perceptions and awareness.
Little research has been conducted to study this problem from the perspectives of consumers and Islamic banking employees. Most of the research associated with Islamic banks fails to pay attention to these stakeholder groups in one study.