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Wall-modeled large eddy simulation (LES) is a practical tool for solving wall-bounded flows with less computational cost by avoiding the explicit resolution of the near-wall region. However, its use is limited in flows that have high non-equilibrium effects like separation or transition. This study aims to present a novel methodology of using high-fidelity data and machine learning (ML) techniques to capture these non-equilibrium effects.

A precursor to this methodology has already been tested in Radhakrishnan et al. (2021) for equilibrium flows using LES of channel flow data. In the current methodology, the high-fidelity data chosen for training includes direct numerical simulation of a double diffuser that has strong non-equilibrium flow regions, and LES of a channel flow. The ultimate purpose of the model is to distinguish between equilibrium and non-equilibrium regions, and to provide the appropriate wall shear stress. The ML system used for this study is gradient-boosted regression trees.

The authors show that the model can be trained to make accurate predictions for both equilibrium and non-equilibrium boundary layers. In example, the authors find that the model is very effective for corner flows and flows that involve relaminarization, while performing rather ineffectively at recirculation regions.

Data from relaminarization regions help the model to better understand such phenomenon and to provide an appropriate boundary condition based on that. This motivates the authors to continue the research in this direction by adding more non-equilibrium phenomena to the training data to capture recirculation as well.

Through research on child sexual abuse (CSA) and adult survivors, knowledge is gained. This knowledge might support decisions – whether political, professional or otherwise – that affect the lives of children who are victims of CSA and adult survivors. Additionally, this knowledge influences what the public knows about CSA and adult survivors and as a consequence, how child victims of CSA and adult survivors are treated in everyday life. Given the huge impact research can have on survivors' lives, this chapter raises the question of what aspects of CSA and survivorship are relevant for survivors from survivors' perspective and whether these aspects can be addressed by Participatory Action Research (PAR) as a research paradigm. To identify relevant aspects, survivors' artwork is analysed because art is a way to contribute to public discourses with very little regulation. For analysis, the Sociology of Knowledge Approach to Discourse is used. In this chapter, we introduce basic theories of knowledge from a constructivist perspective in a short background section and explain the aim and method of analysis. Afterwards, we present some key aspects of survivors' art on CSA and survivorship: The invasiveness of CSA, speech, the symbolic violence behind physical abuse and issues of injustice and responsibility are discussed. Additionally, the discursive relation between artists and audience is of interest to finally answer whether – and, if so, why – PAR is an appropriate research paradigm to address these aspects.

Rights and duties are involved in every area of business and markets, and society and governments. Most often, rights and duties involve serious ethical and moral issues of conflict. A good theory of the ethics of rights and duties, obligations, and responsibilities will empower us to understand the impact of our actions on various stakeholders. Additionally, a deep understanding of rights and duties could help us to analyze better the impact of our executive actions on various stakeholders and, in particular, to fathom the damaging effects of rights and duties violated by the man-made current financial crisis when seen from an ethical and moral point of view. Our coverage on the ethics of corporate rights and duties will comprise of two parts: Part 1: The Nature of Corporate Business Rights and Duties, and Part 2: Respecting Corporate Rights and Duties. The chapter will feature Newcomb Wellesley Hohfeld’s framework of legal interests such as claims, privileges, power, and immunity and its various applications to contemporary market and corporate executive situations. We illustrate the theory of rights and duties using several cases from the current turbulent markets.