Yiqian Wang – författare

This book compares social housing privatisation in the UK and China, revealing convergent housing outcomes despite contrasting political systems. Both countries show weakened social housing, redefined as financial assets, highlighting shared policy failures and the need to rethink market-driven reforms globally.

It examines global neoliberal influences, city-level implementation in Greater Manchester and Hangzhou through comparative case studies that reveal the rise of financialisation, state–local entrepreneurism, and the limitations of market-driven reforms. By offering an understanding of how neoliberal policies transform housing governance and challenge dominant theories and combining empirical evidence with fresh theoretical insights, the book equips scholars, policymakers, and practitioners to rethink housing strategies, assess the consequences of privatisation, and explore alternatives for delivering affordable, secure housing in an era of global market pressures.

This book will appeal to professionals and researchers as well as policymakers in the fields of housing studies, urban studies, public policy, political economy, and comparative politics. While its theoretical contributions target academics, the case-study focus will also make it relevant to practitioners designing or evaluating housing policy.

This book compares social housing privatisation in the UK and China, revealing convergent housing outcomes despite contrasting political systems. Both countries show weakened social housing, redefined as financial assets, highlighting shared policy failures and the need to rethink market-driven reforms globally.

It examines global neoliberal influences, city-level implementation in Greater Manchester and Hangzhou through comparative case studies that reveal the rise of financialisation, state–local entrepreneurism, and the limitations of market-driven reforms. By offering an understanding of how neoliberal policies transform housing governance and challenge dominant theories and combining empirical evidence with fresh theoretical insights, the book equips scholars, policymakers, and practitioners to rethink housing strategies, assess the consequences of privatisation, and explore alternatives for delivering affordable, secure housing in an era of global market pressures.

This book will appeal to professionals and researchers as well as policymakers in the fields of housing studies, urban studies, public policy, political economy, and comparative politics. While its theoretical contributions target academics, the case-study focus will also make it relevant to practitioners designing or evaluating housing policy.

This book collects papers presented in the Invited Workshop, “Liutex and Third Generation of Vortex Definition and Identification for Turbulence,” from CHAOS2020, June 9-12, 2020, which was held online as a virtual conference. Liutex is a new physical quantity introduced by Prof. Chaoqun Liu of the University of Texas at Arlington. It is a vector and could give a unique and accurate mathematical definition for fluid rotation or vortex. The papers in this volume include some Liutex theories and many applications in hydrodynamics, aerodynamics and thermal dynamics including turbine machinery.  As vortex exists everywhere in the universe, a mathematical definition of vortex or Liutex will play a critical role in scientific research. There is almost no place without vortex in fluid dynamics. As a projection, the Liutex theory will play an important role on the investigations of the vortex dynamics in hydrodynamics, aerodynamics, thermodynamics, oceanography, meteorology, metallurgy, civil engineering, astronomy, biology, etc. and to the researches of the generation, sustenance, modelling and controlling of turbulence.

Written by the leading experts in the field, this book results from Vortex Workshop 2023 which took place in San Diego, the USA, on December 11–13.

Vortex is ubiquitous in the universe such as tornado, hurricane, airplane tip vortex, and even star vortex in Galaxy. Vortices are also building blocks, muscles, and sinews of turbulent flows. A vortex is intuitively recognized as a rotational/swirling motion of fluids but until recently had no rigidly mathematical definition. In 1858, Helmholtz first defined vortex as composed of so-called vortex filaments, which are infinitesimal vorticity tubes, which is called as the first generation of vortex definition and identification, or G1. Although G1 has been accepted by the fluid dynamics community and almost all textbooks for over a century, we can find many immediate counterexamples, for example, in the laminar boundary layer, where the vorticity (shear) is very large near the wall, but not rotation (no vortex) exists. To solve these contradictions, many vortex criteria methods have been developed during the past 4 decades. More popular methods are represented by the Q, ∆, criteria methods. These methods have achieved part of success in vortex identification, which are called the second generation of vortex identification or G2. However, G2 has several critical drawbacks. First, they are all scalars which have no rotation axis directions, but vortex is a vector. It is hard or impossible to use a scalar to represent a vector. Second, like vorticity, these criteria methods are all contaminated by shear in different degrees. Third, they are all very sensitive on threshold selections. The recently developed Liutex is called the third generation of vortex definition and identification, or G3, which is a uniquely defined vector.