Search Results - "Grüne, Joachim"
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Unexpected Propagation of Ultra-Lean Hydrogen Flames in Narrow Gaps
Published in Physical review letters (01-05-2020)“…Very lean hydrogen flames were thought to quench in narrow confined geometries. We show for the first time how flames with very low fuel concentration undergo…”
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Blast Wave Generated by Delayed Ignition of Under-Expanded Hydrogen Free Jet at Ambient and Cryogenic Temperatures
Published in Hydrogen (01-12-2022)“…An under-expanded hydrogen jet from high-pressure equipment or storage tank is a potential incident scenario. Experiments demonstrated that the delayed…”
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Revisiting mobile bed tests for beach profile dynamics
Published in Coastal engineering (Amsterdam) (01-07-2011)“…The levels of uncertainty for morphodynamic analysis in the present state of art require field measurements and, whenever possible, large scale mobile bed…”
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Flame instability of lean hydrogen–air mixtures in a smooth open-ended vertical channel
Published in Combustion and flame (01-07-2015)“…This work addresses the experimental investigation and analytical interpretation of a flame subject to acoustic–parametric instability exited by self-generated…”
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Hydrogen combustion in a flat semi-confined layer with respect to the Fukushima Daiichi accident
Published in Nuclear engineering and design (01-05-2015)“…•Critical conditions for flame propagation regimes in a layer geometry are analyzed.•Numerical simulation of hydrogen explosion reproduces real strength of…”
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CFD calculations of gas leak dispersion and subsequent gas explosions: Validation against ignited impinging hydrogen jet experiments
Published in Journal of hazardous materials (15-07-2010)“…Computational fluid dynamics (CFD) tools are increasingly employed for quantifying incident consequences in quantitative risk analysis (QRA) calculations in…”
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Large scale experiments on gravel and mixed beaches: Experimental procedure, data documentation and initial results
Published in Coastal engineering (Amsterdam) (01-03-2006)“…This paper provides information on the experimental set-up, data collection methods and results to date for the project “Large scale modelling of coarse…”
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Flammability limits and burning characteristics of CO–H2–H2O–CO2–N2 mixtures at elevated temperatures
Published in International journal of hydrogen energy (17-08-2015)“…The paper presents the results of an experimental evaluation of the flammability limits and maximum pressure rise rate for multi-component…”
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Flammability limits and burning characteristics of CO–H 2 –H 2 O–CO 2 –N 2 mixtures at elevated temperatures
Published in International journal of hydrogen energy (01-08-2015)Get full text
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Experiments for the hydrogen combustion aspects of ITER LOVA scenarios
Published in Fusion engineering and design (01-10-2011)“…This work addresses the hydrogen safety issue of an International Thermonuclear Experimental Reactor (ITER) in case of a loss of vacuum accident (LOVA)…”
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