... on the Rayleigh number of the flow. Accurate and fast predictive methods are vital for engine clearance design decisions using combined thermomechanical models. The unstable phenomena in the fluid present a challenge for computational fluid dynamics (CFD). Successful application of CFD as a design tool...

... that the proposed stator-less/volute configuration provides an efficient way for bladeless or Tesla turbines, particularly for low-head applications. Tesla expanders computational fluid dynamics energy harvesting bladeless turbine small turbomachinery stator less volute The Tesla turbine...

... conditions representing the dynamic and complex fluid flow inside engines. To meet this requirement, the present study focuses on transient thermomechanical stress analysis using a sequentially coupled computational fluid dynamics (CFD)–finite element analysis (FEA) approach to understand transient...

... clearance. Other force coefficients for both seals, namely, cross-coupled stiffness (k) and direct damping (C) increase as the inlet liquid volume fraction (LVF) grows. Rationale for the peculiar differences in centering stiffness (K) is missing. Hence, a computational fluid dynamics (CFD) model and its...

...Harsh Darshan Sapra; Randy Hessel; Eri Amezcua; Jacob Stafford; Niranjan Miganakallu; David Rothamer; Kenneth Kim; Chol-Bum M. Kweon; Sage Kokjohn Computational fluid dynamics (CFD) simulations are performed to study the potential of energy-assisted compression ignition (EACI) strategy for enabling...

... expander. e-mail:  avinash.renuke@edu.unige.it 21 07 2022 25 07 2022 20 09 2022 Tesla expanders computational fluid dynamics bladeless turbine small turbomachinery cycle innovation The growth in the research of micro-expanders is observed in the applications...

...Fatih Aktas With developing in computer technology, three-dimensional (3D) computational fluid dynamics (CFD) internal combustion (IC) engine simulations, which generally use reduced chemical kinetic mechanisms and simplified combustion models, can provide more accurate results along with less...

.... A three-dimensional computational fluid dynamics engine model incorporated with detailed biodiesel combustion kinetics and NO x formation kinetics was validated against measured in-cylinder pressure, temperature, and engine-out nitric oxide emission from diesel engine. This valid model was then employed...

...Shine Win Naung; Mohammad Rahmati; Hamed Farokhi The high-fidelity computational fluid dynamics (CFD) simulations of a complete wind turbine model usually require significant computational resources. It will require much more resources if the fluid–structure interactions (FSIs) between the blade...

... , A. , Sachdev , J. , and Venkateswaran , S. , 2012 , “ Improved Flux Formulations for Unsteady Low Mach Number Flows ,” Seventh International Conference on Computational Fluid Dynamics, Big Island, Hawaii, July 9– 13, Paper No. ICCFD7-2202 . 10.2514/6.2012-3067 [7] Xia , G...

...: David L. S. Hung. 13 04 2018 27 01 2019 computational fluid dynamics internal combustion engines internal flow modeling turbulence The turbulence field in the cylinder of internal combustion engine is composed of vortex structures with different spatial–temporal scales...

.... In Part II, five cases of geometry with different axial distances between the swirl breaker and the rotor shroud, which covered a range for the stage axial distance of actual high and intermediate pressure (HIP) steam turbines, were investigated using a single-rotor computational fluid dynamics (CFD...

... aerodynamic loss due to mixing with the mainstream flow. In order to reduce this mixing loss, two distinct ideas for rotor shroud exit cavity geometries were investigated using computational fluid dynamics (CFD) analyses and experimental tests. One idea was an axial fin placed from the shroud downstream...

... evaluated using a computational fluid dynamics (CFD) approach. Three essential structural parameters of EUP control valve were investigated, and their effects on circulation characteristics were evaluated. The variation trends were observed, and the changes in significant physical parameters and crucial...

... be applied in cases where a Monte Carlo simulation is unfeasible. We consider three uncertain operating parameters: inlet velocity, burner plate temperature, and equivalence ratio. The FTF is identified in terms of the finite impulse response (FIR) from computational fluid dynamics (CFD) simulations...

...; published online September 14, 2018. Editor: Jerzy T. Sawicki. 22 06 2018 28 06 2018 Acoustic emission Burners Combustion Combustors Computational fluid dynamics Engines Experimental Finite element Flow induced vibration Fuels Modeling Periodic Thermoacoustics Unsteady...

... FOR G AS T URBINES AND P OWER . Manuscript received December 5, 2017; final manuscript received April 25, 2018; published online September 14, 2018. Assoc. Editor: Klaus Dobbeling. 05 12 2017 25 04 2018 Aerodynamics Computational fluid dynamics Turbines A thermal power...

... No. FA9550-16). c = speed of sound (m/s) cf = skin friction cp = heat capacity (J/K) CFD = computational fluid dynamics DBD = dielectric barrier discharge f = frequency (Hz) htc = heat transfer coefficient (W/m 2 K) k = acceleration parameter...

... near the critical point, the computational fluid dynamics (CFD) flow solver is coupled with a look-up table of properties of fluid. Behavior of real gas close to its critical point and the effect of the accuracy of the real gas model on the compressor performance are studied in this paper...

... commercial tools implemented in the ANSYS environment, such as goal-driven optimization. The response surfaces were created based on Latin hypercube samples found from computational fluid dynamics (CFD) calculations. The CFD solver, using a steady-state scheme with the k– ω shear stress transport (SST...