- document
-
Huang, X. (author), Tummers, M.J. (author), Roekaerts, D.J.E.M. (author)Flameless combustion, named as Moderate or Intense Low-oxygen Dilution (MILD) combustion or high-temperature air combustion (HiTAC), is a promising technology to improve the thermal efficiency while suppressing NOx formation in combustion systems. Flameless combustion can occur when fresh air (and/or fuel)...abstract 2017
- document
- Huang, X. (author), van Veen, E.H. (author), Tummers, M.J. (author), Roekaerts, D.J.E.M. (author) abstract 2018
- document
-
Huang, X. (author), Tummers, M.J. (author), Roekaerts, D.J.E.M. (author)Mild combustion in a lab-scale furnace has been experimentally and numerically studied. The furnace was operated with Dutch natural gas (DNG) at 10 kW and at an equivalence ratio of 0.8. OH∗chemiluminescence images were taken to characterize the reaction zone. The chemiluminescence intensity is relatively low compared to conventional flames...abstract 2016
- document
-
Hanjalic, K. (author), Kenjeres, S. (author), Tummers, M.J. (author), Jonker, H.J.J. (author)These lecture notes contain the course material Advanced Physical Transport Phenomena, offered in the Master’s programme in Applied Physics at Delft University of Technology. The notes follow in part the concept and content of the book Fysische Transportverschijnselen II (in Dutch) by Hoogendoorn and Van der Meer (Delft University Press, 1991)....book 2009
- document
-
Tummers, M.J. (author), Passchier, D.M. (author)The estimation of the autocorrelation function (act) or the spectral density function (sdt) from LDA data poses unique data-processing problems. The random sampling times in LDA preclude the use of the spectral methods for equi-spaced samples. As a consequence, special data-processing algorithms are used to process the LDA data. However, the...book 1998
- document
- Tummers, L.C. (author) conference paper 2015
- document
-
Tummers, L. (author)Intentional communities, Cooperatives de logement, Genossenschaften or Co-housing are types of collaborative housing in which residents actively participate in the design and operation of their own neighbourhoods. Cohousing residents are consciously committed to living as a community, and to managing the accommodation by themselves. The physical...conference paper 2011
- document
-
Birvalski, M. (author), Tummers, M. (author), Delfos, R. (author), Henkes, R.A.W.M. (author)The technique for obtaining detailed velocity fields in a wavy liquid layer in stratified air/water pipe flow is described in this paper. By combining Particle Image Velocimetry (PIV) with an interface detection technique, the velocity field is resolved in the whole liquid layer. Furthermore, since the shape of the interface is resolved at each...conference paper 2013
- document
-
Tummers, L.C. (author), Hooimeijer, F.L. (author), Maring, L. (author)The purpose of this contribution is to look at different planning contexts into which decisions about subsoil engineering presently need to be integrated. There are many ways of doing as well as theorizing spatial planning; and planning practice is constantly changing. Next to that, soil legislation and management has become more important to...conference paper 2014
- document
-
Grift, E.J. (author), Tummers, M.J. (author), Overmars, E.F.J. (author), Westerweel, J. (author)We investigate the fluid motion generated by a moving rowing blade. The blade follows a complex path with rather strong acceleration and subsequent deceleration. The blade path is mimicked at a 1:2 scale in a large open-top water tank using a robot system. The tank is transparent, thus enabling full optical access for performing large-field...conference paper 2019
- document
- Luscuere, P (author), Tummers, John M (author), Einden vd, Ad (author) conference paper 1991
- document
-
Huang, X. (author), Tummers, M.J. (author), Roekaerts, D.J.E.M. (author)Mild combustion in a lab-scale furnace has been experimentally and numerically studied. The furnace was operated with Dutch natural gas (DNG) at 10 kW and at an equivalence ratio of 0.8. OH∗chemiluminescence images were taken to characterize the reaction zone. The chemiluminescence intensity is relatively low compared to conventional flames...conference paper 2017
- document
-
Valori, V. (author), Elsinga, G.E. (author), Rohde, M. (author), Tummers, M.J. (author), Westerweel, J. (author), van der Hagen, T.H.J.J. (author)The High Performance Light Water Reactor (HPLWR) is one of the six innovative nuclear energy systems proposed by the Generation IV International Forum. The use of water at supercritical pressure as the coolant in the HPLWR allows a significative increase of the thermal efficiency of the power plant, a reduction in size and complexity of the...conference paper 2015
- document
-
Reijtenbagh, J. (author), Tummers, M.J. (author), Westerweel, J. (author)We present results on the instantaneous drag force acting on a rectangular plate that accelerates in a direction normal to the plate surface. Conventionally the drag force on an accelerating object is divided into a steady state term and an added mass term, which can both be time-dependent. However, for prolonged accelerations this theory...conference paper 2022
- document
- Tummers, M.J. (author) doctoral thesis 1999
- document
- Tummers, L.J.M. (author), Tummers-Zuurmond, J.M. (author) doctoral thesis 1997
- document
-
Kenjeres, S. (author), Verdoold, J. (author), Tummers, M.J. (author), Hanjalic, K. (author), Kleijn, C.R. (author)The paper reports on numerical and experimental investigations of electromagnetically driven vortical flows of an electrically conductive fluid in a generic setup. Two different configurations of permanent magnets are considered: a 3-magnet configuration in which the resulting Lorentz force is focused in the wall-boundary layers, and a 2-magnet...journal article 2009
- document
-
Kalter, R. (author), Tummers, M.J. (author), Kenjeres, S. (author), Righolt, B.W. (author), Kleijn, C.R. (author)The influence of electromagnetic forcing on self-sustained oscillations of a jet issuing from a submerged nozzle into a thin vertical cavity (width W much larger than thickness T) has been studied using particle image velocimetry. A permanent Lorentz force is produced by applying an electrical current across the width of the cavity in...journal article 2014
- document
-
Tummers, L.C. (author)The theorizing of gender, diversity and spatial planning began over three decades ago, both \vithin and from outside the planning profession. It has evaluated from representing 'specific-gender/role connected- interests' to analysing the djTiamics of inequality and difference. It is important to distinguish between approaches based on the...journal article 2013
- document
-
Geers, L.F.G. (author), Tummers, M.J. (author), Hanjali?, K. (author)To gain a better insight into the effects of eddy structure and their thermal imprint on the impinging surface, we applied several methods to identify coherent structures in two arrangements of multiple jets. High-resolution particle imaging velocimetry measurements of the instantaneous fluid velocity have been performed to provide data for...journal article 2005