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Andrea Gruber

Senior Research Scientist

Andrea Gruber

Senior Research Scientist

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

Publications and responsibilities

Publications

Publication
https://www.sintef.no/en/publications/publication/?pubid=CRIStin+1561228

A laminar one-dimensional hydrogen-air flame travelling and quenching towards a chemically inert permeable wall (PW) is studied. Hydrogen flows through the wall into the premixed H2-air. The S3D numerical code with detailed chemistry is used. PW results are compared against results of an impermeable...

Authors Salimath Prashant Siddlinggayya Ertesvåg Ivar Ståle Gruber Andrea
Year 2018
Type Journal publication
Publication
https://www.sintef.no/en/publications/publication/?pubid=CRIStin+1491018

A novel concept for injection of gaseous hydrogen (fuel) into a stream of air (oxidant) with in low-NOx gas turbine combustion systems is proposed and tested experimentally in a laboratory bluff body (BB) burner. Instead of conventional injection nozzles, that represent undesired point sources of th...

Authors Gounder James D. Kutne Peter Gruber Andrea
Year 2017
Type Part of a book/report
Publication
https://www.sintef.no/en/publications/publication/?pubid=CRIStin+1482424

We have developed a high-order numerical method for the 3D simulation of viscous and inviscid multiphase flow described by a homogeneous equilibrium model and a general equation of state. Here we focus on single-phase, two-phase (gas-liquid or gas-solid) and three-phase (gas-liquid-solid) flow of CO...

Publication
https://www.sintef.no/en/publications/publication/?pubid=CRIStin+1354044

A new method of extracting vortical structures from a turbulent flow is proposed whereby topological segmentation of an indicator function scalar field is used to identify the regions of influence of the individual vortices. This addresses a long-standing challenge in vector field topological analys...

Authors Bremer Peer-Timo Gruber Andrea Bennett Janine C. Gyulassy Attila Kolla Hemanth Chen Jacqueline H. Grout Ray W.
Year 2016
Type Journal publication
Publication
https://www.sintef.no/en/publications/publication/?pubid=CRIStin+1257012

Three-dimensional direct numerical simulation results of a transverse syngas fuel jet in turbulent cross-flow of air are analyzed to study the influence of varying volume fractions of CO relative to H<inf>2</inf> in the fuel composition on the near field flame stabilization. The mean fla...

Authors Minamoto Yuki Kolla Hemanth Grout Ray W Gruber Andrea Chen Jacqueline H.
Year 2015
Type Journal publication
Publication
https://www.sintef.no/en/publications/publication/?pubid=CRIStin+1145298

Direct numerical simulations of freely-propagating premixed flames in the turbulent boundary layer of fully-developed turbulent channel flows are used for a priori validation of a new model that aims to describe the mean shape of the turbulent flame brush during flashback. Comparison with the DNS da...

Authors Gruber Andrea Kerstein Alan R Valiev Damir M. Law C.K. Kolla Hemanth Chen Jacqueline H.
Year 2015
Type Journal publication
Publication
https://www.sintef.no/en/publications/publication/?pubid=CRIStin+1252875

The stability and liftoff characteristics of a nitrogen (N2) diluted hydrogen (H2) jet fame in a vitiated co-fow are investigated experimentally with particular attention focused on regimes where multiple stabilization mechanisms are active. Information gleaned from this research is instrumental for...

Authors North Andrew Frederick D. Chen J.Y. Dibble R.W Gruber Andrea
Year 2014
Type Journal publication