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Vreeburg, J.P.B. (author)
In this Experiment Definition Document (EDD), the experiment runs have been defined for the Sloshsat FLEVO spacecraft. Except for experiments while Sloshsat FLEVO is still attached to the Shuttle, each experiment requires Sloshsat FLEVO to be controlled for the realization of a particular motion that is expected to result in a desired behaviour...
report 1996
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Vreeburg, J.P.B. (author)
A model with two interacting bodies, for a spacecraft with liquid, has been developed. The spacecraft without liquid is the "tank" and is characterized by its inertial properties and the location and size of a spherical cavity. In the cavity is located the "slug", a sphere of uniform density with a variable radius. At the point of contact...
report 1996
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Vreeburg, J.P.B. (author)
The representation of the acceleration field on a rigid body contains as parameters its angular rate and acceleration vectors plus the acceleration vector at a single point of the body. A linear accelerometer measures a local component of the field. From the response of different accelerometers, three quadratic forms in the angular rate of the...
report 1995
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Vreeburg, J.P.B. (author)
The Slosh Test Orbital Facility (STOF) is a project administered under ESA's TDP programme. Its main hardware article is a small spacecraft, Sloshsat, with an empty weight of 70 kg. An onboard tank with volume of 80 dm³ is about half-filled with water. The spacecraft is designed for the performance of experiments on the dynamics of the compound...
report 1994
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Vreeburg, J.P.B. (author)
In order to be able to specify realistic sensor requirements for the SLOSHSAT tank, a liquid configuration is defined with characteristics that are representative for the liquid behavior in the tank. A data processing scheme, based on Prony's method, is implemented. The scheme's performance is illustrated with a typical sequence of sensor data...
report 1993
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Prins, J.J.M. (author), Vreeburg, J.P.B. (author)
Responding to the 'Call for Proposals for the In-Orbit Technology Demonstration Programme, Phase 2 (TDP2)' of the European Space Agency (ESA), the Dutch National Aerospace Laboratory (NLR) submitted a plan for the realisation of the 'Slosh Orbital Test Facility (STOF)'. This proposal describes a small free flying spacecraft that will be ejected...
report 1992
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Vreeburg, J.P.B. (author)
report 1991
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van den Dam, R.F. (author), Vreeburg, J.P.B. (author)
The Introduction gives a short review of the effects that onboard liquid may have on the dynamics of the spacecraft. A distinction Is made between arbitrarily moving craft and spin-stabilized vehicles. The modelling of rotating liquid behaviour is very complicated and generally allows only to make predictions on the stability behaviour of a...
report 1989
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Vreeburg, J.P.B. (author), Krinkels, M.C.J.M. (author), Heemskerk, J.F. (author), Delil, A.A.M. (author)
Acoustic techniques for the tracking of a tracer particle in a liquid have been detailed for a specific problem. The liquid is a molten metal in a crucible in a precision furnace; the tracer particle could be a bubble. The acoustic hardware is exterior to the furnace and is coupled to the sample via a small number of liquid-filled waveguides...
report 1989
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Vreeburg, J.P.B. (author)
Experimental methods for the determination of field distributions in opaque liquids are explained under the headings: Acoustics, Electromagnetics and Radiographic Methods. The status of promising techniques for velocity measurements is reported. The localisation of tracer particles is a basic strategy for most implementations. Instruments for...
report 1989
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Vreeburg, J.P.B. (author)
In order to generate constructive discussion on the use of the Space Station for scientific purposes, a possible realisation of operations management is presented. The realisation is chosen to deal with the two main user concerns viz. realtime experiment control and priority allocation in experiment scheduling. From Spacelab it is known that the...
report 1989
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Vreeburg, J.P.B. (author)
The investigation reports in this MP constitute the NLR contribution to the KC-135 campaign report that is compiled by ESA from the contributions of all participants.
report 1988
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Vreeburg, J.P.B. (author)
The present plans for space stations are evolutionary developments from Skylab, ASTP, Spacelab, and recently, MIR. Other forbears can be identified as well, and it is instructive to compare current designs with the drawings that appeared in magazines around 1950, when spaceflight first appeared feasible. The space station that is taken as the...
report 1988
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Vreeburg, J.P.B. (author)
An overview is given of fluid science investigations in microgee. Emphasis is placed on results obtained by European scientists. In order to assess the merits of experiments, particular aspects of the microgee environment will be discussed. The discipline is still very young, thence many qualitative investigations are necessary to identify...
report 1987
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da Riva, I. (author), Martinez, I. (author), Martinez-Val, R. (author), Sanz, A. (author), Huijser, R.H. (author), Visser, F.B. (author), Vreeburg, J.P.B. (author)
The report presents a design study, within a specified envelope of resources, of laboratory for scientific research on fluid material in a space station, A survey of the scientific background of mlcrogravity experiments identifies candidate investigations. A structured description of available facilities, or earlier design studies, provides a...
report 1987
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da Riva, I. (author), Martinez, I. (author), Martinez-Val, R. (author), Sanz, A. (author), Huijsen, R.H. (author), Visser, F.B. (author), Vreeburg, J.P.B. (author)
Based on earlier designs for fluid science facilities, the elements of a FSL are derived. They have been grouped in classes, viz. experiment volumes and support elements. Each is described qualitatively, i.e. their features and required performances are discussed. The experiments are to be described with reference to a set of (5) canonical...
report 1987
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Martinez, I. (author), da Riva, I. (author), Martinez-Val, R. (author), Vreeburg, J.P.B. (author), Sanz, A. (author), Huijser, R.H. (author), Visser, F.B. (author)
The present part 2 of the Final Report presents an inventory of techniques that are likely to find application in the Fluid Science Laboratory. Part 1 of the Report contains a survey of the scientific disciplines that are indicated to provide investigations for the FSL. In the following Part 3, a preliminary synthesis of the content matter of...
report 1987
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Vreeburg, J.P.B. (author)
Experiment FLIM is a continuation of Spacelab-1 experiment IES-330 and is, likewise, executed in the Fluid Physics Module, FPM. Most results are obtained with container FLIM-1, one of three different transparent vessels partially filled with liquid. The interior volume of FLIM-1 is shaped as a circular cylinder, of height equal to radius, 25 mm,...
report 1986
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van den Assem, D. (author), Huijser, R.H. (author), vreeburg, J.P.B. (author)
An optical diagnostic instrument is being developed for execution and observation of fluid physics experiments in microgravity on board a manned space laboratory (e.g. Spacelab). The instrument combines a wide field scene and Schlieren observation system of a diffusely illuminated fluid physics experiment with a facility to operate various...
report 1986
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Vreeburg, J.P.B. (author), Vogels, M.E.S. (author)
Experiment WL-FPM-08, or also: FLIM, has been executed in the FPM on the D-1 mission. The experiment is a continuation of an earlier one on Spacelab-1, and seeks to study capillary liquid flow in transparent models of spacecraft tanks. A typical dimension in a container is five centimeters. Six experiment runs have been conducted with liquid in...
report 1986
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