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Andrea Gruber

Seniorforsker

Andrea Gruber

Seniorforsker

Andrea Gruber
Telefon: 905 52 134
Mobil: 905 52 134
Avdeling: Termisk energi
Kontorsted: Trondheim

Publikasjoner og ansvarsområder

Publikasjoner

Publikasjon

Computation of three-dimensional three-phase flow of carbon dioxide using a high-order WENO scheme

http://www.sintef.no/publikasjoner/publikasjon/?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...

År 2017
Type Tidsskriftsartikkel
Publikasjon

Identifying turbulent structures through topological segmentation

http://www.sintef.no/publikasjoner/publikasjon/?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...

Forfattere Bremer Peer-Timo Gruber Andrea Bennett Janine C. Gyulassy Attila Kolla Hemanth Chen Jacqueline H. Grout Ray W.
År 2016
Type Tidsskriftsartikkel
Publikasjon

Effect of fuel composition and differential diffusion on flame stabilization in reacting syngas jets in turbulent cross-flow

http://www.sintef.no/publikasjoner/publikasjon/?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...

Forfattere Minamoto Yuki Kolla Hemanth Grout Ray W Gruber Andrea Chen Jacqueline H.
År 2015
Type Tidsskriftsartikkel
Publikasjon

Modeling of mean flame shape during premixed flame flashback in turbulent boundary layers

http://www.sintef.no/publikasjoner/publikasjon/?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...

Forfattere Gruber Andrea Kerstein Alan R Valiev Damir M. Law C.K. Kolla Hemanth Chen Jacqueline H.
År 2015
Type Tidsskriftsartikkel
Publikasjon

Stability and liftoff of a N2-in-H2 jet flame in a vitiated co-flow at atmospheric pressure

http://www.sintef.no/publikasjoner/publikasjon/?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...

Forfattere North Andrew Frederick D. Chen J.Y. Dibble R.W Gruber Andrea
År 2014
Type Tidsskriftsartikkel
Publikasjon

GHGT-12 Performance of the IGCC with distributed feeding of H2 in the gas turbine burner

http://www.sintef.no/publikasjoner/publikasjon/?pubid=CRIStin+1190286

A main hurdle for realizing the IGCC with CO2 capture is the lack of gas turbines capable of burning hydrogen in an environmental-friendly, yet energy-efficient manner. With currently proposed combustion schemes an efficiency penalty is caused by the preparation (separation and compression) of the i...

Publikasjon

Direct numerical simulation of laminar flame-wall interaction for a novel H2-selective membrane/injector configuration

http://www.sintef.no/publikasjoner/publikasjon/?pubid=CRIStin+1133527

Direct numerical simulations are performed to investigate the transient processes of laminar flame-wall interaction and quenching near a porous, permeable wall and compared against a reference case of a non-porous impermeable wall. A boundary condition formulation that models species (hydrogen in th...

Forfattere Gruber Andrea Salimath Prashant Siddlinggayya Chen Jacqueline H.
År 2014
Type Tidsskriftsartikkel
Publikasjon

Large Eddy Simulation of premixed flame flashback in a turbulent channel

http://www.sintef.no/publikasjoner/publikasjon/?pubid=CRIStin+1142757

In the design of high-hydrogen content gas turbines for power generation, ashback of the turbulent ame by propagation through the low velocity boundary layers in the premix- ing region is an operationally dangerous event. Predictive models that could capture the onset of ashback would be indispensab...

Forfattere Lietz C. Hassanaly M. Raman V. Kolla Hemanth Chen J. Gruber Andrea
År 2014
Type Konferanseartikkel/Bokkapittel
Publikasjon

Novel gas turbine burner concept for IGCC: Integrated H2 membrane for distributed feeding of hydrogen to the combustion air

http://www.sintef.no/publikasjoner/publikasjon/?pubid=CRIStin+1033018

Integrated Gasification Combined Cycle (IGCC) power plants with CO2 capture are expected to form an important part of a future carbon constrained energy scenario. As with all capture routes, research efforts related to IGCC have been concentrated on minimizing the energy penalty of the capture proce...

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