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The purpose of this paper is to assess the feasibility of strategic planning in times of turbulent economic conditions.

This paper discusses how various Zimbabwean organizations incorporated the aspect of strategic planning during the period 2007‐2009 in order to establish its relevance in different economic situations.

Strategic planning process is very difficult to carry out during turbulent economic conditions though there are some aspects of the process that are indispensible.

Organizations can survive without sticking to their strategic plans in times of turbulent economic environment.

The situation that prevailed in Zimbabwe in 2007‐2009 was unique and this paper endeavours to analyse the feasibility of strategic planning in a turbulent economic environment.

The aim of this paper is to empirically examine whether environmental turbulence leads to the adoption of high-performance work systems (HPWS) and learning orientation (LO) in organizations and, if so, how these two elements contribute to innovativeness. Past research studies widely demonstrated that HPWS and LO are strong determinants of innovativeness. This study incorporates environmental turbulence as an antecedent and explains the interactions between these concepts.

This paper involves a questionnaire-based survey of 233 firms. For hypothesis testing, structural equation modeling (SEM) was used.

The results revealed the antecedent role of environmental turbulence in HPWS and LO. Additionally, HPWS and LO mediated the relationship between environmental turbulence and organizational innovativeness.

This research has the limitations of a cross-sectional study design. The study draws out some implications for firms facing turbulent conditions and intending to increase their innovativeness by stimulating a learning culture and focusing on human capital through HPWS.

The overarching contribution of this study is to test the assumption that organizations initiate changes in their internal systems as a response to environmental turbulence. By doing so, the study enriches current studies by exploring the mediator role of HPWS and LO between environmental turbulence and innovativeness. This research also contributes to the literature by demonstrating the antecedent role of environmental turbulence in HPWS for the first time. Additionally, it provides evidence for the relationship between environmental turbulence and LO.

A two dimensional time‐dependent Navier Stokes formulation that encompasses aspects from both the LES formalism and the conventional k‐ε approaches was employed to calculate a range of reacting bluff‐body flows exhibiting high or low level large scale structure activity. Extensive regions of local flame extinction found in these bluff‐body flame configurations were treated with a partial equilibrium/two‐scalar exponential PDF combustion submodel combined with a local extinction criterion based on a comparison of the turbulent Damkohler number against the ratio of the scalar scale to the reaction zone thickness. A dual‐mode description, burning/ non‐burning, of combustion provided the local gas state. Comparisons between calculations and measurements indicated the ability of the method to capture all the experimentally observed variations in the momentum and reactive scalar mixing fields over a range of operating conditions from the lean to the rich blow‐out limit.

The purpose of this paper is to numerically study inflow turbulence effects on the transitional flow in a high pressure linear transonic turbine at the design incidence.

The three‐dimensional (3‐D) compressible turbulent flow in a turbine inlet guide vane is simulated using a finite volume based fluid solver coupled with dynamic large eddy simulation (LES) computations to investigate the effects of varying inflow turbulence length scale and the turbulence intensity on the aero‐thermal flow characteristics and the laminar‐turbulent transition phenomena. The computational analyses are extended to very high exit Reynolds number flow conditions to further study the effect of high exit Reynolds numbers on the transitional behavior of the present flow around the inlet guide vane cascades of the turbine. The calculations are performed with varying degree of inflow turbulence intensity values ranging from 0.8 to 6 percent and the inflow turbulence length scales ranging from one to five percent of pitch for different exit isentropic Mach and Reynolds numbers.

The numerical predictions in comparison with the experimental data demonstrate that the level of inflow turbulence closure provided by the present LES computations offers a reliable framework to predict complex turbulent flow and transition phenomena in high free‐stream turbulence environments of high pressure linear turbines.

This is the first instance in which both artificially modified random flow generation method in association with the dynamic procedure of LES application is employed to represent the realistic inflow turbulence conditions in the high pressure turbine and to resolve the transitional flow in a dynamic approach.

Numerical results are reported for a dilute turbulent liquid‐solid flow in an axisymmetric sudden‐expansion pipe with an expansion ratio 2:1. The two‐phase flow has a mass‐loading ratio low enough for particle collision to be negligible. The numerical predictions for the dilute two‐phase flow are based on a hybrid Eulerian‐Lagrangian model. A nonlinear k‐ε model is used for the fluid flow to account for the turbulence anisotropy and an improved eddy‐interaction model is used for the particulate flow to account for the effects of turbulence anisotropy, turbulence inhomogeneity, particle drift, and particle inertia on particle dispersion. The effects of the coupling sources, the added mass, the lift force and the shear stress on two‐phase flow predictions are separately studied. The numerical predictions obtained with the improved and conventional particle dispersion models are compared with experimental measurements for the mean and fluctuating velocities at the different measured planes.

Entrepreneurship and entrepreneurs have become increasingly important around the globe considering its positive impact on productivity and employment by economic theoreticians, analysts and researchers. The purpose of this paper is to study the entrepreneurial resilience and self-efficacy of founders of small businesses in India during the global crisis.

Qualitative research method is adopted for analyzing the data collected through a structured questionnaire. In total, 72 small entrepreneurs participated in the study. For analysis of the responses, thematic content analysis is carried out using a four steps method. Codes are generated from the data, which are used to formulate sub-categories. The sub-categories are arranged into a thematic framework by the researchers.

The paper proposes a framework as an outcome of the study, which is discussed in detail in later sections. The framework comprises of four broad areas, namely, modifications (process/product/business model); impact on functional areas; technology adoption; and sources of business continuation. The linking of these is also presented in a pictorial representation.

This paper provides meaningful insights on entrepreneurial resilience and self-efficacy of small businesses in turbulent times. The theoretical contribution is in form of a proposed framework and an addition in the literature of entrepreneurial resilience for the developing economies. The findings can be used for the practical and policy implications, which may lead toward offering better understanding and clarity to the stakeholders. It may also show trajectory to authorities for formulating long-term strategies for the survival of small businesses in the region.

To pronounce any environment permanently turbulent is as silly as calling it permanently stable. Environments are always changing in some dimensions while remaining stable in others.

The purpose of this paper is to augment heat transfer rates of traditional rib-elements with minimal pressure drop penalties.

The novel geometries in the present research are conventional cylindrical ribs with rounded transitions to the adjacent flat surfaces and with modifications at their bases. All turbulent fluid flow and heat transfer results are presented using computation fluid dynamics with a validated v2f turbulence closure model. Turbulent flow characteristics and heat transfer performances in square channels with improved ribbed structures are numerically analyzed in this research work.

Based on the results, it is found that rounded transition cylindrical ribs have a large advantage over the conventional ribs in both enhancing heat transfer and reducing pressure loss penalty. In addition, cylindrical ribs increase the flow impingement at the upstream of the ribs, which will effectively increase the high heat transfer areas. The design of rounded transition cylindrical ribs and grooves will be an effective way to improve heat transfer enhancement and overall thermal performance of internal channels within blade cooling.

The novel geometries in this research are conventional cylindrical ribs with rounded transitions to the adjacent flat surfaces and with modifications at their bases. The combination of cylindrical ribs and grooves to manipulate the turbulent flow.

To explain how an organization has been able to use seismic changes in its wider external environment to transform its performance without the need for radical internal restructuring or coercive forms of leadership.

This paper utilises a three year case study from elite sport, an under‐represented sector in the management literature but one that offers a fascinating view of change.

Whilst the change management literature typically emphasises dramatic and rapid coercive restructuring accompanying open‐ended environment change, this study found that known routines and historical ways of working existed alongside innovation, risk‐taking and learning; the paradoxical foundation upon which performance flourished.

Although the dangers of single cases are noted, difficulties regarding access and comparability with other similar organizations prevented a similar degree of focus on multiple cases. Future research either within elite sports teams or other organizations facing similar environmental change is needed to extend and enhance the asset maximization model presented here.

This analysis and the development of an asset maximisation approach questions the traditional processual or design‐based approaches towards managing change and argues for the capture and incorporation of business and strategic decision making within such accounts.

The paper is a rare account of change within elite sports. The asset maximisation approach developed within this case study illustrates how holistic value creation in turbulent times is achieved. As such, its conclusions will have much to offer organizations as well as academics interested in the management of change.

The purpose of this study was to examine the influence of socio-cognitive mindfulness on resilience, stress and thriving among middle managers in higher education at two separate periods during the COVID-19 pandemic. In Study 1, the authors examined how socio-cognitive mindfulness predicted perceived stress and whether the relationship between mindfulness and perceived stress was mediated by resilience. In Study 2, the authors replicated the first study and further hypothesized that the link between mindfulness and thriving was also mediated by resilience.

The authors conducted cross-sectional correlational studies to test the hypotheses using data from 163 middle managers in higher education early in the pandemic in Study 1 and 204 middle managers a year later in Study 2.

Study 1 findings showed socio-cognitive mindfulness predicted perceived stress, and that resilience fully mediated this relationship. In Study 2, socio-cognitive mindfulness did not predict perceived stress, but it did predict thriving, and that relationship was fully mediated by resilience.

This research is the first to address how socio-cognitive mindfulness directly impacts perceived stress and thriving and its impact through building resilience. To date, few studies have focused on stress in higher education middle managers or addressed the importance of building socio-cognitive mindfulness and resilience to thrive amid ongoing challenges. Implications of the pandemic's influence on the results are also addressed.