„Spessart“ field project of Weihenstephan-Triesdorf University of Applied Sciences reaches final stage of the 2020 EU-Natura 2000 Award

The acoustical characteristics of cooling fans are an essential criterion of product quality in the automotive industry. Fan modules have to suffice growing customer expectations which are reflected in the comfort requirements set by car manufacturers around the world. In order to locate dominant acoustic sources and to reduce the noise emission generated by a shrouded fan configuration, numerical simulations and experimental investigations are performed. The working approach considers variously modified fan geometries and their evaluation regarding arising vortex flow phenomena and their effect on a decreased sound pressure level (SPL) in consideration of an improvement or the constancy of aerodynamic fan performance. Particular emphasis lies on the analysis of secondary flows in the blade tip region by post-processing CFD-results. Due to the large number of geometrical modifications investigated and the importance of highly resolved eddy structures, a hybrid approach is chosen by applying the SAS-SST turbulence model in URANS simulations. The SAS (Scale Adaptive Simulation) delivers LES (Large Eddy Simulation) content in unsteady regions of a RANS-simulation and exhibits not nearly the high computational effort needed to perform a full scale LES. An assessment of the actual propagation of noise emission into the far-field is made by performing experimental investigations on the most promising modifications. The acoustic measurements are carried out in a fan test stand in the anechoic chamber of Duesseldorf University of Applied Sciences. The aerodynamic performance is measured in a fan test rig with an inlet chamber setup in accordance to ISO 5801. The measured acoustical and aerodynamic performances are validated by the industrial partner. The results of the acoustic measurements are in turn utilized to determine indicators of noise radiation in the numerical simulation. Within this work an innovative geometry modification is presented which can be implemented into shrouded fan configurations with backward-skewed blades. The new design exhibits a reduced SPL (A-weighted) of approx. 4 dB over the entire operating range while showing no significant deterioration on the aerodynamic performance. While the design was registered for patent approval cooperatively by the industrial partner and Duesseldorf University of Applied Sciences, further investigations regarding variations of design parameters are performed and presented in this paper. All numerical simulations are performed with ANSYS CFX, a commercial solver widely spread in the industry. Methods similar to those shown in this work can be implemented in the design phase of axial fans in order to develop acoustically optimized fan geometries.

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Auditing in a Family-Centered Higher Education Institution: The German Experience of Implementation

Vestnik Povolzhskogo instituta upravleniya ◽

10.22394/1682-2358-2021-3-21-25 ◽

2021 ◽

Vol 21 (3) ◽

pp. 21-25

Author(s):

Susanne Maier ◽

Keyword(s):

Applied Sciences ◽

Higher Education ◽

Public Administration ◽

Education Institution ◽

Working Environment ◽

Family Friendly ◽

The Family ◽

University Of Applied Sciences ◽

The University ◽

Family Centered

The family-friendly university audit (“audit familiengerechte hochschule”) is studied. The audit is available to German universities in order to support a familyfriendly working environment. Practices of an auditor coordinating several workshops for rectorate, HR department and functionaries, as well as representatives of all university groups are considered. The experience of the auditing at the University of Applied Sciences – Public Administration and Finance, Ludwigsburg is analyzed.

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COMPARATIVE GEOMETRICAL INVESTIGATIONS OF HAND-HELD SCANNING SYSTEMS

ISPRS - International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences ◽

10.5194/isprs-archives-xli-b5-507-2016 ◽

2016 ◽

Vol XLI-B5 ◽

pp. 507-514 ◽

Cited By ~ 2

Author(s):

T. P. Kersten ◽

H.-J. Przybilla ◽

M. Lindstaedt ◽

F. Tschirschwitz ◽

M. Misgaiski-Hass

Keyword(s):

Applied Sciences ◽

Laser Scanning ◽

Reference Data ◽

Test Results ◽

University Of Applied Sciences ◽

Humboldt University ◽

Comprehensive Test ◽

Structure Sensor ◽

Scanning Systems ◽

Test Scenarios

An increasing number of hand-held scanning systems by different manufacturers are becoming available on the market. However, their geometrical performance is little-known to many users. Therefore the Laboratory for Photogrammetry & Laser Scanning of the HafenCity University Hamburg has carried out geometrical accuracy tests with the following systems in co-operation with the Bochum University of Applied Sciences (Laboratory for Photogrammetry) as well as the Humboldt University in Berlin (Institute for Computer Science): DOTProduct DPI-7, Artec Spider, Mantis Vision F5 SR, Kinect v1 + v2, Structure Sensor and Google’s Project Tango. In the framework of these comparative investigations geometrically stable reference bodies were used. The appropriate reference data were acquired by measurement with two structured light projection systems (AICON smartSCAN and GOM ATOS I 2M). The comprehensive test results of the different test scenarios are presented and critically discussed in this contribution.

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Journal Clubs

Septentrio Conference Series ◽

10.7557/5.5377 ◽

2020 ◽

Author(s):

Cecilia Black Fylking ◽

Elin Opheim

Keyword(s):

Applied Sciences ◽

Nursing Students ◽

Evidence Based Practice ◽

Theory And Practice ◽

Research Articles ◽

Evidence Based ◽

Journal Clubs ◽

University Of Applied Sciences ◽

The Subject ◽

Academic Genre

Journal clubs are closely interlinked with evidence based practice. At Faculty of Social and Health Sciences at Inland Norway University of Applied Sciences our students are required to write literature reviews for their bachelor degree, and there is an increasing need for guiding the students into academic methodology through critically assessing research articles. The purposes of starting journal clubs at our faculty is to guide the students into the academic genre, to help them gain confidence in reading research articles, and to broaden the perspective between theory and practice. Better semester grade is a secondary goal to our aim as it probably is hard to operationalize. We wish to establish a cooperation with the faculty staff, especially the ones involved in teaching evidence based practice. Wilson & Deighton (2016) describes that students find it difficult to approach research articles, and that journal clubs are suitable and an activating manner to introduce the students to the academic genre. Deenadayalan et al. (2008) comments that using case studies as a basis for academic discussion, fills the gap between theory and practical approach to the subject. There are several elements to pay attention to if the journal clubs are to become a success, and Deenadayalan et al. (2008) emphasizes among other things a clear purpose for the students' involvement, as well as leadership, insentives and preparedness. In our project dating, we wish to discuss the possibility to do pilots for nursing students either in the last semesters of their courses, or with master students. We are interested in previous experiences with nursing students, and we want to look into which factors that makes the clubs function and how our aim might be reached.

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