TY  - JOUR
T1  - Innovatives Handwerk -  Mit FH-Forschung sichert sich der Sonderanlagenhersteller Münstermann einen Wettbewerbsvorsprung
JF  - fh 16 Journal  Lebendige Forschung an Fachhochschulen in NRW
Y1  - 2010
IS  - 1
ER  - 
TY  - JOUR
A1  - Annas, S.
A1  - Jantzen, H.-A.
A1  - Scjolz, J.
A1  - Janoschke, U.
T1  - A Scale-up Strategy for the Fluid Flow in Biogas Plants
JF  - Chemical Engineering & Technology
Y1  - 2018
SN  - 1521-4125
IS  - 3
ER  - 
TY  - JOUR
A1  - Annas, Sven
A1  - Jantzen, Hans-Arno
ED  - Charlfi, Walltraud
T1  - Auf der Suche nach dem optimalen Rührwerk
JF  - e.l.b.W Umwelttechnik Wien
KW  - Rührwerkotimierung
Y1  - 2019
VL  - 2019
IS  - März
SP  - 36
EP  - 37
ER  - 
TY  - JOUR
A1  - Annas, Sven
A1  - Jantzen, Hans-Arno
A1  - Janoschke, Uwe
A1  - Scholz, Jürgen
A1  - Elfering, Michael
A1  - Volbert, Nico
T1  - Einfluss der Rührwerksposition auf den Mischprozess in Biogasanlagen anhand eines Paddelrührwerks
JF  - CIT Chemie Ingenieur Technik
Y1  - 2019
U6  - http://dx.doi.org/10.1002/cite.201800116
VL  - 2019
IS  - 7
SP  - 1
EP  - 12
ER  - 
TY  - JOUR
A1  - Augspurger, Thorsten
A1  - Klocke, Fritz
A1  - Döbbeler, Benjamin
A1  - Brockmann, Matthias
A1  - Gierlings, Sascha
A1  - Lima, Adriana
T1  - Modeling of Transient Thermal Conditions in Cutting
JF  - Journal of Mechanics in Engineering and Automation
N2  - The thermal conditions like the temperature distribution and the heat fluxes during metal cutting have a major influence on the machinability, the tool lifetime, the metallurgical structure and thus the functionality of the work piece. This in particular applies for manufacturing processes like milling, drilling and turning for high-value turbomachinery components like impellers, combustion engines and compressors of the aerospace and automotive industry as well as energy generation, which play a major role in modern societies. However, numerous analytical and experimental efforts have been conducted in order to understand the thermal conditions in metal cutting, yet many questions still prevail. Most models are based on a stationary point of view and do not include time dependent effects like in intensity and distribution varying heat sources, varying engagement conditions and progressive tool wear. In order to cover such transient physics an analytical approach based on Green’s functions for the solution of the partial differential equations of unsteady heat conduction in solids is used to model entire transient temperature fields. The validation of the model is carried out in orthogonal cutting experiments not only punctually but also for entire temperature fields. For these experiments an integrated measurement of prevailing cutting force and temperature fields in the tool and the chip by means of high-speed thermography were applied. The thermal images were analyzed with regard to thermodynamic energy balancing in order to derive the heat partition between tool, chips and workpiece. The thus calculated heat flow into the tool was subsequently used in order to analytically model the transient volumetric temperature fields in the tool. The described methodology enables the modeling of the transient thermal state in the cutting zone and particular in the tool, which is directly linked to phenomena like tool wear and workpiece surface modifications.
KW  - Zerspanung
KW  - Temperatur
KW  - Infrarotkamera
Y1  - 2017
U6  - http://dx.doi.org/10.17265/2159-5275/2017.03.001
IS  - 7-1
SP  - 113
EP  - 120
ER  - 
TY  - JOUR
A1  - aus der Wiesche, Stefan
T1  - A Mobile Test Rig for Micro Gas Turbines Based on a Thermal Power Measurement Approach
JF  - ASME Journal for Engineering of Gas Turbines and Power
Y1  - 2012
U6  - http://dx.doi.org/10.1115/1.4007201
VL  - 134
ER  - 
TY  - JOUR
A1  - aus der Wiesche, Stefan
T1  - Stagnation Flow and Heat Transfer From a Finite Disk Situated Perpendicular to a Uniform Stream
JF  - ASME Journal of Fluids Engineering
Y1  - 2020
VL  - 142
IS  - 3
SP  - 031108 (15 pages)
ER  - 
TY  - JOUR
A1  - aus der Wiesche, Stefan
T1  - The Cauchy surface wave problem from the viewpoint of a VOF method
JF  - Computational Mechanics
Y1  - 2007
SP  - 141
EP  - 152
ER  - 
TY  - JOUR
A1  - aus der Wiesche, Stefan
T1  - Heat transfer from a rotating disk in a parallel air crossflow
JF  - International Journal of Thermal Science
Y1  - 2007
SP  - 745
EP  - 754
ER  - 
TY  - JOUR
A1  - aus der Wiesche, Stefan
T1  - Large-eddy-simulation study of an air flow past a heated square cylinder
JF  - Heat and Mass Transfer
Y1  - 2007
SP  - 515
EP  - 525
ER  -