openHSU – Research Showcase

In a former study carried out by Wood et al. (2022) and Wood and Breuer (2023) a novel approach for the generation of artificial wind gusts in a wind tunnel setup was presented denoted “the paddle”. The device generates wind gusts by dynamically blocking the nozzle outlet area with a rigid plate inducing a sudden rise and drop of the velocity signal. This procedure leads to highly reproducible wind gusts within a certain region of the test section depending on the kinematic settings of the paddle. However, outside of this restricted region the flow is dominated by a highly fluctuating flow regime. This effect limits the space of the test section, which can be used for experimental investigations. In order to reduce the negative effects of the paddle, a modified design of the gust generator is presented in this contribution. For this purpose, a second wind tunnel is designed using the same automation equipment as the paddle. However, the new setup comprises a nozzle with a fully movable upper contour in order to generate smoother wind gusts. The working principle and a comarison between the gusts generated by the paddle and the new device are presented based on a closely matched motion pattern of the servo driver unit and an identical blocking ratio. In summary, the adaptive nozzle reduces the drawbacks of the paddle such as the large flow separation and the velocity undershoot on the falling flank of the gust. Additionally, previously not attainable gust shapes can be generated leading to a greater variety of flow conditions for experimental studies on fluid-structure interaction (FSI).

汉学家和历史学家傅吾康（Wolfgang Franke，1912-2007）对德国汉学和我们对中国的认知产生了深远的影响。他的学术和私人文件遗物被保存并由柏林国家图书馆管理。本主题门户网站提供了对傅吾康生活和工作的深入了解，重点介绍了他与中国的终生联系、他在汉堡大学的学者角色、作为文化中介的身份及其生活的其他方面。探索他的遗产中的手稿、信件和照片，了解这位最重要的汉学家之一。

The sinologist and historian Wolfgang Franke (1912-2007) significantly influenced German Sinology and our view on China. His academic and personal estate is preserved and managed by the Berlin State Library. This thematic portal offers insights into Franke's life and work. It highlights Wolfgang Franke's lifelong connection with China, his role as a scholar at the University of Hamburg, as cultural broker, and other aspects of his life. Discover manuscripts, letters, and photos from his estate and learn more about one of the most important sinologists of our time.

In this article, we take stock of management literature on gender and diversity (G and D) in German-speaking countries following on from surveys conducted by Gertraude Krell. The analysis is based on the publication lists of 294 VHB members (the German Academic Association for Business Research) according to their human resources and organization sections. We first focus on VHB members’ overall engagement in G and D publications and then look more closely at G and D articles published since 2008 to analyse which diversity dimensions are addressed by which research perspectives. We find that although culture, gender and age are the main topics they are treated differently, depending on the publication outlet.

What do the relaxed social events held by companies and organizations do for continued gender inequality? This article argues that outings, barbecues and parties offer opportunities for members of an organization to challenge unequal gender regimes. But they can also end up maintaining these inequalities instead. The article draws on Joan Acker’s theory of gendered organizations, and Judith Butler’s notion of gender performativity. Based on 208 accounts of organizations’ social events, it identifies the following four areas of gender performativity and their varying significance in reaffirming or challenging unequal gender regimes: gender images, status differences, the body and sexuality. The findings indicate that practices reaffirming unequal gender regimes outnumber practices that possibly balance or break them. Paradoxically, practices that challenge unequal gender regimes, when joined with powerful responses from the hitherto privileged party, can form a vicious circle which again ends up continuing unequal gender regimes. The article provides a more nuanced understanding of ambivalences and the contested nature of gender regimes which is important in identifying avenues for gender equality.

Temporary organizations such as projects are known to differ in various respects from permanent ones and have been argued to be more gender-neutral. Inspired by gender research in permanent organizations, we show that (in)congruency between gender and project roles evokes similar mechanisms in both permanent and temporary systems. Using the example of cooperative behavior, operationalized as project citizenship behavior (PCB), we examine how temporary organizations reward such behaviour. A cross-sectional study was conducted, with 241 project managers and workers participating. The results of seven structural equation models reveal that though the enactment of PCB does not vary by gender, the relationship of PCB with its outcomes does: men and women were clearly rewarded differently depending on the gender congruency of their project roles.