... computational heat transfer internal flow jets swirling turbines In order to further increase the efficiency and power, gas temperature at gas turbine inlet becomes extremely high which is far beyond the thermal limit of the material. Thus, cooling technique is critical to protect the blade...

... FEA. These standard numerical analyses are limited due to high time and financial costs. Whereas CFD and FEA require several days up to several weeks, depending on the resolution and computing facility, ComDAT and CoSMA tools solve a simplified combustor analysis in a couple of minutes and so allow...

... received March 29, 2018; published online July 10, 2018. Editor: David Wisler. 23 07 2017 29 03 2018 Aerodynamics Aerothermodynamics Combustion Combustors Computational Computational fluid dynamics Gas turbine technology Thermochemistry Turbulence Turbulent Large eddy...

... of designs. The engine parameters were start of injection (SOI), injection duration, and injector included angle. The engine simulation was completed with a sector mesh in the commercial computational fluid dynamics (CFD) software CONVERGE , which predicted the combustion and emissions using a detailed...

... and the case to abate the higher pressure leakage. Experimental and computational investigations of shroud clearance flow in a radial inflow turbine with labyrinth seals are presented in this paper. Compared with the result without leakage, numerical computation result including the leakage of labyrinth seals...

... OWER . Manuscript received June 8, 2017; final manuscript received July 5, 2017; published online June 25, 2018. Editor: David Wisler. 08 06 2017 05 07 2017 Combustion Computational Computational fluid dynamics Flame Fuel combustion Gaseous Modeling Modern heavy duty...

... with variable power turbine guide vanes in matlab / simulink . The sample size is decreased substantially after analyzing the relationship between high and low pressure shaft rotational speeds under dynamic working conditions, which reduces the computational burden of the simulation. The effects of the power...

... in the design parameters. In this section, the FDF model together with the neural network is applied to investigate the thermoacoustic instability in the combustor. Computations are made for 12 cases with the wide range of plenum and chamber length. With the refined FDF data generated by RBFNN...

... constraint modes. This paper presents a new way to calculate a reduced set of constraint modes referred to as Fourier constraint modes (FCMs). These FCMs greatly reduce the number of computations required to construct a multistage reduced order model (ROM). The FCM method can also be integrated readily...

... Then, the stoichiometric mass air–fuel ratio is (4) ( AF ) s = ( m a m f ) s = 28.85 · 4.76 · a s 12.01 a + 1.008 b + 15.99 c For a gaseous mixture of multiple fuel species and air, the overall instantaneous equivalence ratio can be computed...

.... B. , 2009 , “ A Paradigm Shift in the Interaction of Experiments and Computations in Combustion Research ,” Proc. Combust. Inst. , 32 ( 1 ), pp. 879 – 886 . 10.1016/j.proci.2008.05.066 [19] Versailles , P. , 2017 , “ CH formation in Premixed Flames of C1–C4 Alkanes: Assessment...

...Kai Kadau; Phillip W. Gravett; Christian Amann We developed and successfully applied a direct simulation Monte Carlo (MC) scheme to quantify the risk of fracture for heavy-duty rotors commonly used in the energy sector. The developed probabilistic fracture mechanics (FM), high-performance computing...

... characteristics and the operability of the whole installation. The study of such models is motivated by the wish to avoid the costs incurred by full, three-dimensional (3D) computational fluid dynamics (CFD) computations. The present contribution documents a fan model for fan–intake computations based...

... Wisler. 20 07 2017 31 07 2017 Computational The stiffness and damping of the foil structure are the capital mechanical characteristics of the foil bearings. Therefore, they have received an increased attention since the emergence of this technology. This is a complex...

... operating point B50 = B-speed 50% load operating point B75 = B-speed 75% load operating point CA50 = crank angle of 50% heat release CFD = computational fluid dynamics CI = compression ignition CR = compression ratio EGR = exhaust gas recirculation MCC...

... in the J OURNAL OF E NGINEERING FOR G AS T URBINES AND P OWER . Manuscript received July 4, 2017; final manuscript received July 26, 2017; published online October 17, 2017. Editor: David Wisler. 04 07 2017 26 07 2017 Computational Flow induced vibration Modeling Flow induced...

... (2D) equations in local body-fitted coordinates, derived from Navier–Stokes equations, makes the approach suitable for arbitrary curved blades and integration with three-dimensional (3D) computational fluid dynamics (CFD) simulations. The model is implemented in the in-house solver MULTI3, which uses...

... OF E NGINEERING FOR G AS T URBINES AND P OWER . Manuscript received May 12, 2017; final manuscript received July 25, 2017; published online October 17, 2017. Editor: David Wisler. 12 05 2017 25 07 2017 Computational Fatigue Heat transfer Intelligent control Modeling Thermal...

... properties of specially selected blades and bladed disks. The technique for the choice of the reduction basis has been developed, which provides the required accuracy while keeping the computation expense acceptable. An approach for effective modeling of anisotropy-mistuned bladed disk without a need...

... in large coal-fired plants [ 3 ]. Computational Energy systems Fossil Nuclear power generation Control systems 06 07 2017 17 07 2017 Contributed by the Electric Power Committee of ASME for publication in the J OURNAL OF E NGINEERING FOR G AS T URBINES AND P OWER...