Himanshu Upreti, Sawan Kumar Rawat and Manoj Kumar
The purpose of this paper is to examine the velocity and temperature profile for a two-dimensional flow of single- and multi-walled nanotubes (CNTs)/H2O nanofluid over a flat…
Abstract
Purpose
The purpose of this paper is to examine the velocity and temperature profile for a two-dimensional flow of single- and multi-walled nanotubes (CNTs)/H2O nanofluid over a flat porous plate, under the impact of non-uniform heat sink/source and radiation. The influence of suction/blowing, viscous dissipation and magnetic field is also incorporated.
Design/methodology/approach
The solution of the PDEs describing the flow of nanofluid is accomplished using Runge–Kutta–Fehlberg approach with shooting scheme.
Findings
Quantities of physical importance such as local Nusselt number and skin friction coefficient for both types of nanotubes are computed and shown in tables. Also, the impact of copious factors like Prandtl number, magnetic field, Eckert number, porosity parameter, radiation parameter, non-linear stretching parameter, injection/suction, heating variable, particle volume fraction and non-uniform heat sink/source parameter on temperature and velocity profile is explained in detail with the aid of graphs.
Originality/value
Till date, no study has been reported that examines the role of radiation and non-uniform heat sink/source on MHD flow of CNTs‒water nanofluid over a porous plate. The numerical outcomes attained for the existing work are original and their originality is authenticated by comparing them with earlier published work. This problem is of importance, as there are many applications of the fluid flowing over a flat porous plate.
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Himanshu Upreti and Manoj Kumar
The purpose of this paper is to examine the effect of non-linear thermal radiation, Joule heating and viscous dissipation on the mixed convection boundary layer flow of MHD…
Abstract
Purpose
The purpose of this paper is to examine the effect of non-linear thermal radiation, Joule heating and viscous dissipation on the mixed convection boundary layer flow of MHD nanofluid flow over a thin moving needle.
Design/methodology/approach
The equations directing the flow are reduced into ODEs by implementing similarity transformation. The Runge–Kutta–Fehlberg method with a shooting technique was implemented.
Findings
Numerical outcomes for the coefficient of skin friction and the rate of heat transfer are tabulated and discussed. Also, the boundary layer thicknesses for flow and temperature fields are addressed with the aid of graphs.
Originality/value
Till now, no numerical study investigated the combined influence of Joule heating, non-linear thermal radiation and viscous dissipation on the mixed convective MHD flow of silver-water nanofluid flow past a thin moving needle. The numerical results for existing work are new and their novelty verified by comparing them with the work published earlier.
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Latika Sharma, Hemantkumar P. Bulsara, Himanshu Bagdi and Mridul Trivedi
This research aims to forecast university students' intentions to contribute to sustainable entrepreneurship (SE) in an emerging market. The study observed the factors influencing…
Abstract
Purpose
This research aims to forecast university students' intentions to contribute to sustainable entrepreneurship (SE) in an emerging market. The study observed the factors influencing students’ sustainable entrepreneurial intentions (SEI) using an extended theory of planned behaviour (TPB).
Design/methodology/approach
A survey was conducted utilising an online questionnaire with a total of 332 college students in Gujarat, India. Partial least squares-structural equation modelling (PLS-SEM) was used to analyse the data.
Findings
The outcome of the present research sanctions that university support strongly impacts perceived behavioural control (PBC) and negatively affects attitudes towards sustainable entrepreneurship (ATT). The findings revealed that environmental concern positively influences students' attitudes and perceived behavioural control towards sustainable entrepreneurship. Whereas sustainable development goals knowledge (SDGK) negatively impacts attitude and PBC. Out of the three key factors of TPB used in the study, only the subjective norm negatively affects SEI among the respondents.
Research limitations/implications
This research may be valuable to academicians and environmental strategists in determining the most essential elements that drive students to create sustainable firms. The findings of this study back up the assumption that TPB adaptation is required when assessing entrepreneurship-specific intents.
Originality/value
The current research aimed to regulate students' entrepreneurial intention (EI) in Gujarat, India, concerning a sustainable enterprise. This research appears to be one of the extremely scarce studies that utilise the extended TPB model to investigate the effect of university support (US), environmental concern (EC) and SDGK in the context of India.