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Article
Publication date: 1 July 2006

Oleg Iliev, Joachim Linn, Mathias Moog, Dariusz Niedziela and Vadimas Starikovicius

This study proposes to develop and investigate different iterative solvers for non‐Newtonian flow equations.

472

Abstract

Purpose

This study proposes to develop and investigate different iterative solvers for non‐Newtonian flow equations.

Design/methodology/approach

Existing approaches for the time discretization of the flow equation and for an iterative solution of the discrete systems are discussed. Ideas for further development of existing preconditioners are proposed, implemented and investigated numerically.

Findings

A two‐level preconditioning, consisting of a transformation of the original system in the first step and subsequent preconditioning of the transformed system is suggested. The GMRES iterative method, which usually performs well when applied to academic problems, showed dissatisfactory performance for the type of industrial flow simulations investigated in this work. It was found that the BiCGStab method performed best in the tests presented here.

Research limitations/implications

The iterative solvers considered here were investigated only for a certain class of polymer flows. More detailed studies for other non‐Newtonian flows should be carried out.

Originality/value

The work presented in this paper fills a gap related to the usage of efficient iterative methods for non‐Newtonian flow simulations.

Details

International Journal of Numerical Methods for Heat & Fluid Flow, vol. 16 no. 5
Type: Research Article
ISSN: 0961-5539

Keywords

Available. Content available
Article
Publication date: 1 July 2006

Vaughan Voller

288

Abstract

Details

International Journal of Numerical Methods for Heat & Fluid Flow, vol. 16 no. 5
Type: Research Article
ISSN: 0961-5539

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Case study
Publication date: 1 April 2022

Rajani Ramdas and Nisha Shankar

This study will help students determine the economic value of a firm particularly in case of a small business. The crux of the case is to help students estimate an enterprise…

Abstract

Learning outcomes

This study will help students determine the economic value of a firm particularly in case of a small business. The crux of the case is to help students estimate an enterprise value for a company and figure the actual worth of the company to aid in decision-making.

Case overview/Synopsis

This case is about a decision dilemma faced by Shashi Hegde, Director, Hycons Renewable Private Ltd, a company ventured into the production of Bio-CNG. It is about a recent proposal received by the firm from APL Ltd for equity investment with 40% stake in the firm. The case reflects the dilemma faced by small businesses to choose between investment or loss of control. Accepting the proposal will bring in additional funds, whereas the Board loss control on the firm. The case revolves around this dilemma. To help Hegde in this task, he seeks advice from his CFO and his confidant Kumar.

Complexity academic level

This case is most appropriate for a core finance class for both under-graduate and graduate programs.

Supplementary materials

Teaching notes are available for educators only.

Subject code

CSS 1: Accounting and Finance.

Details

Emerald Emerging Markets Case Studies, vol. 12 no. 2
Type: Case Study
ISSN: 2045-0621

Keywords

Available. Open Access. Open Access
Article
Publication date: 10 October 2024

Shamirah Najjinda, Godfrey Akileng, Vincent Bagire and Peter Turyakira

The purpose of this study is to establish whether all the dimensions of entrepreneurial resources matter in fostering the well-being of women entrepreneurs.

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Abstract

Purpose

The purpose of this study is to establish whether all the dimensions of entrepreneurial resources matter in fostering the well-being of women entrepreneurs.

Design/methodology/approach

An explanatory research design was used to collect data through a questionnaire survey of 283 women entrepreneurs who benefited from the Uganda Women Entrepreneurship Programme (UWEP). This study used Statistical Package for Social Sciences to analyze the data.

Findings

Study results show that social and human capital matter unlike financial capital in boosting the well-being of women entrepreneurs.

Originality/value

This study provides maiden empirical evidence on contribution of entrepreneurial resource dimensions in fostering the well-being of women entrepreneurs, unlike extant studies that mostly focused on entrepreneurial resources as a global variable. This was done using evidence from Uganda, a developing context where the government and other stakeholders are still grappling with improving the well-being of women as a pathway for social-economic development.

Details

Asia Pacific Journal of Innovation and Entrepreneurship, vol. ahead-of-print no. ahead-of-print
Type: Research Article
ISSN: 2071-1395

Keywords

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