... = polytropic efficiency endwall contouring centrifugal compressor vaned diffuser aerodynamic performance CFD References [1] Yoshinaga , Y. , Gyobu , I. , Mishina , H. , Koseki , F. , and Nishida , H. , 1980 , “ Aerodynamic Performance...

... e-mail:  a.john@sheffield.ac.uk 03 07 2024 20 07 2024 23 08 2024 contrail parametric model ice microphysics aircraft wake engine integration CFD RANS simulation Radiative forcing (RF), the difference between the radiative energy received from the sun...

... in Cardiff University's Gas Turbine Research Center has been considered as validation test case. In addition, this paper presents an experimental campaign followed by a computational fluid dynamics (CFD) approach for the assessment of NO x emission using axisymmetric Reynolds-Averaged Navier–Stokes (RANS...

...-mail:  a.garmory@lboro.ac.uk 12 12 2023 30 01 2024 20 03 2024 fuel atomization fuel sprays prefilming atomizer CFD LES CLSVOF unsteady Engineering and Physical Sciences Research Council 10.13039/501100000266 EP/L015943/1 At the current time, liquid...

... ignited mixing-controlled combustion (PC-MCC). The PC-MCC concept enables a ∼10× reduction in methane emissions, making it a promising technology for reducing the environmental impact of reciprocating engines. In this study, computational fluid dynamics (CFD) simulations have been used to compare two...

..., June 26–30, 2023. Turbo Expo 2023. e-mail:  g.l.ingram@durham.ac.uk 24 08 2023 31 10 2023 08 02 2024 turbomachinery education gas turbine undergraduate CFD This paper outlines the update of a final year turbomachinery course to cover three-dimensional...

... with pressure loss. It can be seen that the vortex induces a total pressure loss at approximately 240 deg. Overall, CFD predictions improve with the increase in grid density. Fig. 13( e ) shows the circumferential distribution of IPR at a constant radial height through the vortex core. Experimentally...

...@cranfield.ac.uk e-mail:  c.wijesinghe@cranfield.ac.uk e-mail:  v.sethi@cranfield.ac.uk 28 10 2023 11 11 2023 01 02 2024 CFD Lagrangian volume of fluid turbulent liquid fuel crossflow atomization gas turbine Environmental concerns have been addressed...

... computational resources due to the small spatial and temporal time scales required to resolve the detonation phenomenon. Furthermore, traditional steady-state computational fluid dynamics (CFD) analyses are not possible for RDC simulations. The present study develops and validates a computationally efficient...

... a computational fluid dynamics (CFD) simulation with water steam in the nonequilibrium state can be realized on a two-dimensional (2D) or three-dimensional (3D) model of the multistage low pressure flow part of the steam turbine with the following exhaust hood and possibly also with the condenser neck...

...Abdelrahman S. Abdeldayem; Salma I. Salah; Martin T. White; Abdulnaser I. Sayma In this paper, a modified loss breakdown approach is introduced for axial turbines operating with supercritical carbon dioxide (sCO 2 ) mixtures using computational fluid dynamics (CFD) results. Loss breakdown analysis...

... to varying wind speeds. e-mail:  mahdi.nakhchi@northumbria.ac.uk 15 07 2022 25 07 2022 28 09 2022 wind turbine wake-control CFD power generation yaw angle where g = exp ( − 0.125 ( N B λ − 21 ) ) + 0.1 , N B = 3...

... was used. The steady computational fluid dynamics (CFD) showed that the inlet duct has little effect on the aerodynamic performance of the fan. The results of the full passage unsteady calculation at the maximum flow rate showed that the duct has a significant influence on the suction vortexes caused...

...Zongyu Yue; Chao Xu; Sibendu Som; C. Scott Sluder; K. Dean Edwards; Russell A. Whitesides; Matthew J. McNenly This work describes the development of a transported Livengood–Wu (L–W) integral model for computational fluid dynamics (CFD) simulation to predict autoignition and engine knock tendency...

... its temperature characteristic and level. On the one hand, a numerical conjugate heat transfer (CHT) model of the automotive turbocharger investigated is developed using a commercial CFD-tool and a bidirectional, thermal coupling of the CFD-model with thermohydrodynamic lubrication simulation codes...

... to support novel oxy-combustor designs, a high-fidelity yet numerically efficient modeling framework based on the CRUNCH CFD ® flow solver is presented, featuring key physics-based submodels relevant in this regime. For computational efficiency in modeling large kinetic sets, a flamelet/progress variable...

... shape of the fan inlet bellmouth. The validity of the modified formula was verified by measuring the circumferential acoustic modes of three cooling fans with different rotor and strut counts. Furthermore, a computational fluid dynamics (CFD) numerical study was conducted using Fluent to understand...

...Chen Liu; Yipeng Cao; Yang Liu; Wenping Zhang; Xinyu Zhang; Pingjian Ming The analysis of intake silencer insertion loss (IL) was conducted using a hybrid numerical method, which combined computational fluid dynamics (CFD) and acoustic finite element method (FEM). First, an experimental test...

...Yanling Li; A. Duncan Walker; John Irving Impingement cooling is commonly employed in gas turbines to control the turbine tip clearance. During the design phase, computational fluid dynamics (CFD) is an effective way of evaluating such systems but for most turbine case cooling (TCC) systems...

.... Development and application of multidimensional computational fluid dynamics (CFD) models have become effective and important in predicting fuel oxidation and emission formation [ 1 , 2 ]. diesel spray ignition delay lift-off length soot CFD Finally, the simulations on diesel engine...