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Andrea Gruber

Senior Research Scientist

Andrea Gruber

Senior Research Scientist

Andrea Gruber
Phone: 905 52 134
Email:
Department: Thermal Energy
Office: Trondheim

Publications and responsibilities

Publication
https://www.sintef.no/en/publications/publication/?pubid=1889107

It has been previously demonstrated that thermal gas expansion might have a role in boundary layer flashback of premixed turbulent flames [Gruber et al., J Fluid Mech 2012], inducing local flow-reversal in the boundary layer's low-velocity streaks on the reactants’ side of the flame and facilitating...

Authors Ruixue Feng Andrea Gruber Jacqueline H. Chen Damir M. Valiev
Year 2021
Type Academic article
Publication
https://www.sintef.no/en/publications/publication/?pubid=1869195

Ammonia has been identified as a promising energy carrier that produces zero carbon dioxide emissions when used as a fuel in gas turbines. Although the combustion properties of pure ammonia are poorly suited for firing of gas turbine combustors, blends of ammonia, hydrogen, and nitrogen can be...

Authors Samuel Wiseman Martin Rieth Andrea Gruber James Dawson Jacqueline H. Chen
Year 2020
Type Academic article
Publication
https://www.sintef.no/en/publications/publication/?pubid=1820529

We perform a direct numerical simulation (DNS) of 14081 “cold” spherical droplets evaporating in a “hot” fully-developed turbulent channel flow. This effort is the first extensive computation that employs four-way coupling of the droplet motion with the turbulent carrier phase and interface-resolved...

Authors Giandomenico Lupo Andrea Gruber Luca Brandt Christophe Duwig
Year 2020
Type Academic article
Publication
https://www.sintef.no/en/publications/publication/?pubid=1831757

Numerical simulations of laminar premixed flames burning hydrogen and methane in spontaneous ignition mode are performed by harmonically exciting the reactants’ temperature at the domain inlet. The results are compared to an analytical model representing the same reactive flow configuration. The...

Authors Francesco Gant Andrea Gruber Mirko R. Bothien
Year 2020
Type Academic article
Publication
https://www.sintef.no/en/publications/publication/?pubid=1762830

Chemical‐kinetic combustion mechanisms for hydrogen‐oxygen‐nitrogen systems, motivated originally by concerns about NOx emissions during hydrogen burning, have recently acquired renewed interest as a result of the possibility of employing ammonia‐hydrogen mixtures in gas turbines and reciprocating...

Authors Yuanjie Jiang Andrea Gruber Kalyanasundaram Seshadri Forman Williams
Year 2019
Type Academic article
Publication
https://www.sintef.no/en/publications/publication/?pubid=1716066

In thermal systems for transportation and power generation turbulence and combustion are ubiquitous and very often inextricably coupled processes, down to the smallest scales of continuum mechanics in non-linear fashion. Conventional approaches to Computational Fluid Dynamics (CFD), traditionally...

Authors Andrea Gruber
Year 2019
Type Academic chapter/article/Conference paper
Publication
https://www.sintef.no/en/publications/publication/?pubid=1599825

A three-dimensional direct numerical simulation (DNS) is performed for a turbulent hydrogen-air flame, represented with detailed chemistry, stabilized in a model gas-turbine combustor. The combustor geometry consists of a mixing duct followed by a sudden expansion and a combustion chamber, which...

Authors Konduri Aditya Andrea Gruber Chao Xu Tianfeng F. Lu Alex Krisman Mirko R. Bothien Jacqueline H. Chen
Year 2019
Type Academic article