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Andrea Gruber

Seniorforsker

Andrea Gruber

Seniorforsker

Andrea Gruber
Telefon: 905 52 134
E-post:
Avdeling: Termisk energi
Kontorsted: Trondheim

Publikasjoner og ansvarsområder

Publikasjon
https://www.sintef.no/publikasjoner/publikasjon/?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...

Forfattere Ruixue Feng Andrea Gruber Jacqueline H. Chen Damir M. Valiev
År 2021
Type Vitenskapelig artikkel
Publikasjon
https://www.sintef.no/publikasjoner/publikasjon/?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...

Forfattere Samuel Wiseman Martin Rieth Andrea Gruber James Dawson Jacqueline H. Chen
År 2020
Type Vitenskapelig artikkel
Publikasjon
https://www.sintef.no/publikasjoner/publikasjon/?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...

Forfattere Giandomenico Lupo Andrea Gruber Luca Brandt Christophe Duwig
År 2020
Type Vitenskapelig artikkel
Publikasjon
https://www.sintef.no/publikasjoner/publikasjon/?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...

Forfattere Francesco Gant Andrea Gruber Mirko R. Bothien
År 2020
Type Vitenskapelig artikkel
Publikasjon
https://www.sintef.no/publikasjoner/publikasjon/?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...

Forfattere Yuanjie Jiang Andrea Gruber Kalyanasundaram Seshadri Forman Williams
År 2019
Type Vitenskapelig artikkel
Publikasjon
https://www.sintef.no/publikasjoner/publikasjon/?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...

Forfattere Andrea Gruber
År 2019
Type Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
Publikasjon
https://www.sintef.no/publikasjoner/publikasjon/?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...

Forfattere Konduri Aditya Andrea Gruber Chao Xu Tianfeng F. Lu Alex Krisman Mirko R. Bothien Jacqueline H. Chen
År 2019
Type Vitenskapelig artikkel