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Article
Publication date: 30 August 2024

Chandrapushpam Thangaraj, Sivasankaran Sivanandam and Bhuvaneswari Marimuthu

This paper aims to examine the Dufour and Soret combined effects on the study of two-dimensional squeezed flow of copper water nanofluid between parallel plates along with applied…

Abstract

Purpose

This paper aims to examine the Dufour and Soret combined effects on the study of two-dimensional squeezed flow of copper water nanofluid between parallel plates along with applied (external) magnetic field. Impact of higher order chemical reaction is also considered.

Design/methodology/approach

The nonlinear partial differential equations (PDEs) are changed into system of ordinary differential equations (ODEs) by employing suitable similarity transformations. These transformed ODEs are then solved by means of a semianalytical method called differential transform method (DTM). Effects of several changing physical parameters on fluid flow, temperature and concentration have been deliberated through graphs.

Findings

It is observed that Dufour and Soret numbers are directly related to temperature profile and a reverse trend was observed in the concentration profile. Temperature enhancement is perceived for the enhanced Dufour number. Enhancement in Dufour number shows a direct association with Sh and Nu for all values of squeezing parameter.

Practical implications

The combined Dufour and Soret effects are used in separation of isotopes in mixture of gases, oil reservoirs and binary alloys solidification. The squeeze nanoliquid flow can be used in the field of composite material joining, rheological testing and welding engineering.

Social implications

This study is mainly useful for geosciences and chemical engineering.

Originality/value

The uniqueness in this research is the study of the impact of cross diffusion on chemically reacting squeezed nanoliquid flow with the chemical reaction order more than one in the presence of applied magnetic force using a semianalytical procedure, named DTM.

Details

World Journal of Engineering, vol. ahead-of-print no. ahead-of-print
Type: Research Article
ISSN: 1708-5284

Keywords

Article
Publication date: 9 September 2024

Latifah Falah Alharbi, Umair Khan, Aurang Zaib, S.H.A.M. Shah, Anuar Ishak and Taseer Muhammad

Thermophoresis deposition of particles is a crucial stage in the spread of microparticles over temperature gradients and is significant for aerosol and electrical technologies. To…

Abstract

Purpose

Thermophoresis deposition of particles is a crucial stage in the spread of microparticles over temperature gradients and is significant for aerosol and electrical technologies. To track changes in mass deposition, the effect of particle thermophoresis is therefore seen in a mixed convective flow of Williamson hybrid nanofluids upon a stretching/shrinking sheet.

Design/methodology/approach

The PDEs are transformed into ordinary differential equations (ODEs) using the similarity technique and then the bvp4c solver is employed for the altered transformed equations. The main factors influencing the heat, mass and flow profiles are displayed graphically.

Findings

The findings imply that the larger effects of the thermophoretic parameter cause the mass transfer rate to drop for both solutions. In addition, the suggested hybrid nanoparticles significantly increase the heat transfer rate in both outcomes. Hybrid nanoparticles work well for producing the most energy possible. They are essential in causing the flow to accelerate at a high pace.

Practical implications

The consistent results of this analysis have the potential to boost the competence of thermal energy systems.

Originality/value

It has not yet been attempted to incorporate hybrid nanofluids and thermophoretic particle deposition impact across a vertical stretching/shrinking sheet subject to double-diffusive mixed convection flow in a Williamson model. The numerical method has been validated by comparing the generated numerical results with the published work.

Details

Multidiscipline Modeling in Materials and Structures, vol. ahead-of-print no. ahead-of-print
Type: Research Article
ISSN: 1573-6105

Keywords

Case study
Publication date: 12 September 2024

Archana Anand Boppolige, Cledwyn Fernandez and Suneetha Saggurti

After completion of the case study, the students will be able to[1] review the industry analysis using Porter’s five forces and strength, weakness, opportunities, threats…

Abstract

Learning outcomes

After completion of the case study, the students will be able to[1] review the industry analysis using Porter’s five forces and strength, weakness, opportunities, threats framework and understand how a firm can achieve a competitive advantage, analyze the stakeholder theory and the salience of stakeholder mapping for enterprises with large number of stakeholders, apply the Mendelow framework of stakeholder mapping in this context and integrate it with stakeholder engagement for small enterprises and examine and evaluate how new age enterprises can engage better with stakeholders to provide a higher value creation.

Case overview/synopsis

Ayushi Srivastava started her enterprise, Beeyond Foods, in early 2021 with the aim to provide unadulterated, raw honey to consumers. She also wanted to help the beekeeping community by providing the beekeepers with a fair price for the procurement of honey from the bee hives. Beeyond Foods was a small enterprise in India that sold two variants of honey to consumers. The first variant was sourced from the Himalayan region of India, whereas the second was sourced from the Western Ghats of India. The primary distribution channel was trade fairs, where Srivastava would assemble her stall and sell honey to potential customers. Furthermore, a part of the sales was also driven by an electronic channel, which was through the company website. Customers could place their orders, and the honey would directly be delivered to their homes. With a successful start to the business, Srivastava was interested to scale her business and reach more customers. However, she was mindful that there were multiple stakeholders involved in the business. Srivastava had to study the values and needs of each stakeholder, while simultaneously formulate a strategy to expand her reach. This case study is designed to teach the concept of stakeholder value creation for small business enterprises.

Complexity academic level

This case study is well suited for an entrepreneurship and strategy course at the postgraduate (Master of Business Administration) level. This case study can also be taught in a marketing course.

Supplementary materials

Teaching notes are available for educators only.

Subject code

CSS3: Entrepreneurship.

Details

Emerald Emerging Markets Case Studies, vol. 14 no. 3
Type: Case Study
ISSN: 2045-0621

Keywords

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