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Case studies in public relations are often used as illustrations in textbooks or for promoting good practices. This paper examines the use of case studies to understand the basics of PR strategies. Canadian award‐winning communication campaigns are analysed through a model based on communication theories. The outputs of different campaigns with similar objectives are compared and their methods of practice deduced. The model will be explained and Canadian lobbying campaigns used as examples.

The purpose of this paper is to study thermal (natural) convection in nine different containers involving the same area (area= 1 sq. unit) and identical heat input at the bottom wall (isothermal/sinusoidal heating). Containers are categorized into three classes based on geometric configurations [Class 1 (square, tilted square and parallelogram), Class 2 (trapezoidal type 1, trapezoidal type 2 and triangle) and Class 3 (convex, concave and triangle with curved hypotenuse)].

The governing equations are solved by using the Galerkin finite element method for various processing fluids (Pr = 0.025 and 155) and Rayleigh numbers (10³ ≤ Ra ≤ 10⁵) involving nine different containers. Finite element-based heat flow visualization via heatlines has been adopted to study heat distribution at various sections. Average Nusselt number at the bottom wall ( Nub¯) and spatially average temperature (θ^) have also been calculated based on finite element basis functions.

Based on enhanced heating criteria (higher Nub¯ and higher θ^), the containers are preferred as follows, Class 1: square and parallelogram, Class 2: trapezoidal type 1 and trapezoidal type 2 and Class 3: convex (higher θ^) and concave (higher Nub¯).

The comparison of heat flow distributions and isotherms in nine containers gives a clear perspective for choosing appropriate containers at various process parameters (Pr and Ra). The results for current work may be useful to obtain enhancement of the thermal processing rate in various process industries.

Heatlines provide a complete understanding of heat flow path and heat distribution within nine containers. Various cold zones and thermal mixing zones have been highlighted and these zones are found to be altered with various shapes of containers. The importance of containers with curved walls for enhanced thermal processing rate is clearly established.

This study aims to elucidate the role of curved walls in the presence of identical mass of porous bed with identical heating at a wall for two heating objectives: enhancement of heat transfer to fluid saturated porous beds and reduction of entropy production for thermal and flow irreversibilities.

Two heating configurations have been proposed: Case 1: isothermal heating at bottom straight wall with cold side curved walls and Case 2: isothermal heating at left straight wall with cold horizontal curved walls. Galerkin finite element method is used to obtain the streamfunctions and heatfunctions associated with local entropy generation terms.

The flow and thermal maps show significant variation from Case 1 to Case 2 arrangements. Case 1 configuration may be the optimal strategy as it offers larger heat transfer rates at larger values of Darcy number, Da_m. However, Case 2 may be the optimal strategy as it provides moderate heat transfer rates involving savings on entropy production at larger values of Da_m. On the other hand, at lower values of Da_m (Da_m ≤ 10⁻³), Case 1 or 2 exhibits almost similar heat transfer rates, while Case 1 is preferred for savings of entropy production.

The concave wall is found to be effective to enhance heat transfer rates to promote convection, while convex wall exhibits reduction of entropy production rate. Comparison between Case 1 and Case 2 heating strategies enlightens efficient heating strategies involving concave or convex walls for various values of Da_m.

The purpose of this paper is to address various works on mixed convection and proposes 10 unified models (Models 1–10) based on various thermal and kinematic conditions of the boundary walls, thermal conditions and/ or kinematics of objects embedded in the cavities and kinematics of external flow field through the ventilation ports. Experimental works on mixed convection have also been addressed.

This review is based on 10 unified models on mixed convection within cavities. Models 1–5 involve mixed convection based on the movement of single or double walls subjected to various temperature boundary conditions. Model 6 elucidates mixed convection due to the movement of single or double walls of cavities containing discrete heaters at the stationary wall(s). Model 7A focuses mixed convection based on the movement of wall(s) for cavities containing stationary solid obstacles (hot or cold or adiabatic) whereas Model 7B elucidates mixed convection based on the rotation of solid cylinders (hot or conductive or adiabatic) within the cavities enclosed by stationary or moving wall(s). Model 8 is based on mixed convection due to the flow of air through ventilation ports of cavities (with or without adiabatic baffles) subjected to hot and adiabatic walls. Models 9 and 10 elucidate mixed convection due to flow of air through ventilation ports of cavities involving discrete heaters and/or solid obstacles (conductive or hot) at various locations within cavities.

Mixed convection plays an important role for various processes based on convection pattern and heat transfer rate. An important dimensionless number, Richardson number (Ri) identifies various convection regimes (forced, mixed and natural convection). Generalized models also depict the role of “aiding” and “opposing” flow and combination of both on mixed convection processes. Aiding flow (interaction of buoyancy and inertial forces in the same direction) may result in the augmentation of the heat transfer rate whereas opposing flow (interaction of buoyancy and inertial forces in the opposite directions) may result in decrease of the heat transfer rate. Works involving fluid media, porous media and nanofluids (with magnetohydrodynamics) have been highlighted. Various numerical and experimental works on mixed convection have been elucidated. Flow and thermal maps associated with the heat transfer rate for a few representative cases of unified models [Models 1–10] have been elucidated involving specific dimensionless numbers.

This review paper will provide guidelines for optimal design/operation involving mixed convection processing applications.

This study aims to carry out the analysis of Rayleigh-Bénard convection within enclosures with curved isothermal walls, with the special implication on the heat flow visualization via the heatline approach.

The Galerkin finite element method has been used to obtain the numerical solutions in terms of the streamlines (ψ ), heatlines (Π), isotherms (θ), local and average Nusselt number ( Nut¯) for various Rayleigh numbers (10³ ≤ Ra ≥ 10⁵), Prandtl numbers (Pr = 0.015 and 7.2) and wall curvatures (concavity/convexity).

The presence of the larger fluid velocity within the curved cavities resulted in the larger heat transfer rates and thermal mixing compared to the square cavity. Case 3 (high concavity) exhibits the largest Nut¯ at the low Ra for all Pr. At the high Ra, Nut¯ is the largest for Case 3 (high concavity) at Pr = 0.015, whereas at Pr = 7.2, Nut¯ is the largest for Case 1 (high concavity and convexity).

The results may be useful for the material processing applications.

The study of Rayleigh-Bénard convection in cavities with the curved isothermal walls is not carried out till date. The heatline approach is used for the heat flow visualization during Rayleigh-Benard convection within the curved walled enclosures for the first time. Also, the existence of the enhanced fluid and heat circulation cells within the curved walled cavities during Rayleigh-Benard heating is illustrated for the first time.

Public relations (PR) education has not kept pace with the rapid globalisation that has occurred since 1992. The existing PR body of knowledge, and PR curricula around the world, have a US bias. In order to prepare PR students in various parts of the world to become effective multicultural professionals it is essential for experiences and perspectives from other continents to be integrated into PR education. The complexities of societal factors such as culture, political systems and media systems make Asia a challenging place to conduct strategic PR. It is time for educators to integrate experiences from other continents into the PR body of knowledge, thereby building PR curricula that contribute to training truly multicultural PR professionals.

This research aims to describe business perceptions of public relations (PR) in New Zealand. It also intends to provide insights which will assist the Public Relations Institute of New Zealand (PRINZ) to achieve its mission “to promote PR as a reputable, dynamic profession”.

Senior management from 28 of New Zealand's top 200 companies completed a questionnaire and participated in a 45‐minute interview to explore definitions of PR and its place in their organisations. A symbolic interactionist methodology was utilised to analyse the findings.

The study finds that CEOs had a low opinion of public relations practitioners. They tended to see PR as an integral part of doing business. They also saw reputation management as best conducted by themselves rather than a consultancy – except in a crisis. A clear distinction was made between PR (consultancy based) and corporate communication (in‐house). None of the companies used the term PR in their in‐house communications titles. Communications managers distanced themselves from PR, claiming instead to offer integrity‐based, transparent communication. Marketers saw PR as serving marketing. CFOs and Legal Counsel saw PR as serving strategic objectives but were sceptical about the competence of communications practitioners to deliver strategic communication.

Despite a very good response rate (66.7 per cent) the base was uneven in terms of geographic spread and category of organisation. Since this is a descriptive study links between observations and contributing factors can be suggested but do not establish causality. This study did not extend to the public sector that employs a number of PR practitioners in New Zealand especially in Wellington.

Larger businesses in New Zealand are wary of the term PR. Should the profession abandon the name or fight for a new definition? Communication is definitely part of senior management decision making in New Zealand but PR and communication practitioners need to demonstrate their value if they want to participate at this level. PRINZ can assist the promotion of PR by professionalising the practitioners and by influencing the training of the increasing number of PR graduates who are being introduced to the industry.

No such study has been completed in New Zealand so this study will provide a comparison with UK, US and European studies of perceptions of PR. This study aligns with the Murray and White study of CEO views of reputation management in that it gathers data from senior management.

The purpose of this paper is to explore how public relations (PR) professionals develop co-narratives with legal counsel when formulating crisis communication strategies. Understanding how PR practitioners work with their legal counterparts may help lead to more advanced and effective PR practice in the area of crisis communication and management. The authors attempt to do so in this study through interviews conducted with PR practitioners in two Asian countries – South Korea and Singapore.

In total, 11 semi-structured interviews with PR consultants, 6 in Korea and 5 in Singapore were conducted between May and August 2016. Data analyses revealed key points of interest for PR practice.

First, PR consultants in both countries reported increased collaboration with legal counsel in times of crisis. Second, PR consultants report that legal professionals have begun to realize the significance of winning in the court of public opinion. However, the process by which PR–legal collaboration takes place to develop co-narratives followed extremely different patterns in the two countries.

This exploratory study is not exempt from limitations. The findings from this study may not be applicable to other countries. As data collection in both countries relied on snowball sampling techniques, the participants in the interviews may not be representative of PR consultants in South Korea and Singapore. E-mail interviews had limitations due to their lack of richness and details compared to other forms of interviews (i.e. face-to-face or Skype interviews). However, computer-mediated interviews including e-mail interviews can still create good level of understandings about the phenomenon in question.

This study was an attempt to understand PR–legal collaboration particularly in times of crisis and contribute to the development of Asia-centric models of PR practice. There has been little research that explores how legal and PR counsels actually collaborate to devise optional crisis communication strategies for their clients (or organizations) in the times of crisis. Given that crisis communicative strategies have been shown to affect publics’ perceptions of an organization’s credibility and trustworthiness, it is important to understand how PR work with legal practitioners to develop co-narratives for optimal crisis management, and understand how their different professional perspectives, practices, and approaches affect the collaboration.

The purpose of this paper is to examine how lecturers in public relations (PR) in Ghana are preparing students to be effective practitioners. The study also aims to extend understanding of PR education to an emerging democracy in response to calls for examining how future practitioners are shaped in different contexts.

The paper adopted a qualitative open-ended key informant in-depth interview approach with 12 purposively sampled PR lectures in accredited higher education institutions in Ghana.

PR education in Ghana is shaped by the local socio-political and economic context and influenced by western approaches. The opportunity to teach PR at the diploma level (prior to a bachelor’s level) provides another layer of PR training. Extensive use of social media in Ghana suggests that more focus should be placed on teaching about the strategic use of these technologies in industry. In the face of real challenges, under-resourced lecturers find ways to appropriate and provide students with skills needed for industry.

The use of a qualitative data gathering method suggests that this study should be considered an introduction into PR education in Ghana, which requires further investigation with generalizable samples.

This study profiles PR education in Ghana. It also responds to calls to examine the preparation of future practitioners in different context beyond the western world.