To instruct and delight : how themes make an expo

No abstrac

Ruimte, tijd, samenleving:situationeel ontwerpen gevoed door onderzoek en ontwikkeling

Intreerede, uitgesproken op 28 november 2008 aan de Technische Universiteit Eindhove

Wall-resolved versus wall-modeled LES of the flow field and surface forced convective heat transfer for a low-rise building

Large eddy simulation (LES) is widely used to investigate the aerodynamics and convective heat transfer (CHT) at the surfaces of sharp-edged bluff bodies for a wide range of Reynolds (Re) numbers. Due to the heavy computational costs associated with implicit filtering in LES at high Reynolds number flows (Re ≥ 105), wall-modeled (WM) rather than wall-resolved (WR) LES is often adopted. However, the performance of LES-WM for such applications has not yet been systematically investigated. Therefore, this study evaluates the performance of LES-WM and LES-WR for the flow and thermal field at the facades of a low-rise building immersed in an atmospheric boundary layer. Four grids are constructed for LES-WM, each employing different resolution at the building surfaces reaching maximum non-dimensional wall distance y+ = 43, 57, 70, and 95. In addition, the performance of two wall functions, namely the Werner and Wengle and the enhanced wall function is investigated. The results show that the use of LES-WM can result in significant deviations in the predicted near-facade flow pattern and the surface convective heat transfer coefficient (CHTC). Grid resolution significantly impacts the CHTC results and deviations go up to 88% (at the base of the windward facade). Considerable deviations among the employed wall functions are apparent only on the finest grid. In this case, the implementation of the enhanced wall function indicates better performance compared to the non-blended law of the wall (combined with the Werner and Wengle) for CHTC in the regions of the leeward facade where the flow remains attached to the wall. The deviation of the enhanced wall function for surface-averaged CHTC is found to be 10.8% against the wall-resolved LES results, while for the non-blended law of the wall this is 19.2%.</p

Constructing a framework for the exploration of the relationship between the psychosocial and the physical learning environment

The research field regarding the relationship between the psychosocial learning environment (PSLE) and the physical learning environment (PLE) requires a commonly accepted theoretical framework, enabling comparison of research results and construction of a shared body of knowledge. Based on selected and reviewed literature, this study explores existing conceptualisations, distilling the main aspects as identified by earlier research, and processes these findings in a preliminary conceptual framework. This framework structures the PSLE into the dimensions: personal development; relationships; and system maintenance and change, and the PLE into the dimensions naturalness; individualisation; and stimulation. For each of these dimensions, the framework distinguishes the intended, implemented, and attained representation. Compared to the conceptualisations used in the reviewed literature, this preliminary conceptual framework is more comprehensive, with a balanced representation of both the PSLE and PLE. Further development and empirical testing will be necessary to demonstrate the validity, usability and reliability of the framework

Mundaneum en Cite Mondiale. het nieuwe Jeruzalem van de Internationale Beweging

De ontstaangeschiedenis van Le Corbusier’s ontwerp voor het Mundaneum en de Cite Mondiale

The history of trophy- the trophy of history

A tale of the lessons socio-historical analysis can teach architects concerning building programmes and their prototypical architecture as well as their historical dynamic

To instruct and delight : how themes make an expo

No abstrac

Het calendarium

No abstract

Patio & Pavilion

No abstract