Results 1 to 10 of about 9,253,195 (205)

APPLICATION OF ADVANCED COMBUSTION MODELS IN INTERNAL COMBUSTION ENGINES BASED ON 3-D CFD LES APPROACH

open access: yesActa Polytechnica, 2021
This paper deals with the application of advanced simulation techniques for combustion modeling in the case of an internal combustion engine. The main focus is put on models with a high predictive ability hence 3-D CFD was selected while using LES ...
Oldřich Vítek   +6 more
doaj   +1 more source

Evaluation of the unsteady flamelet progress variable approach in Large Eddy Simulations of the ECN Spray A

open access: yesScience and Technology for Energy Transition, 2022
Within the Unsteady Flamelet Progress Variable – Large Eddy Simulation (UFPV-LES) approach the local scalar dissipation rate represents one key parameter, significantly affecting the ignition behaviour.
Gierth Sandro   +5 more
doaj   +1 more source

Vpliv vlažnosti na mikrotrdoto smrekovine, določeno z vtiskanjem

open access: yesLes, 2023
Trdota predstavlja merilo odpornosti lesa proti prodiranju tršega telesa v njegovo notranjost in pogosto pogojuje uporabnost izbrane vrste lesa za določen namen uporabe. Poleg gostote, trdoto posamezne lesne vrste zelo pogojuje vlažnost lesa.
Jure Žigon, Aleš Straže
doaj   +1 more source

Camprarison of different Turbulent Modeling on Rotating Airfoil with Corolios and centrifugal accelaration [PDF]

open access: yesمجله مدل سازی در مهندسی, 2000
The blades moving in a circular path have many industrial applications, these include their use in some turbomachines. In more modern turbo machines, such as jet engine compressors, the flow conditions are completely incompressible.
Iraj Fazeli Farsani, Bahman Asadi
doaj   +1 more source

LES analysis on soot formation process in a high-boosted diesel engine

open access: yesNihon Kikai Gakkai ronbunshu, 2021
In the present study, a mixed timescale subgrid model of large eddy simulation (LES) is applied to simulate detailed mixture formation, combustion and soot formation influenced by turbulence in diesel engine combustion.
Beini ZHOU   +4 more
doaj   +1 more source

Vpliv naravnega staranja na izbrane fizikalne in mehanske lastnosti konstrukcijskega lesa

open access: yesLes, 2022
Les je po poseku in uporabi za konstrukcije izpostavljen staranju, ki je med drugim odvisno od pogojev izpostavitve. V času življenjske dobe oz. uporabe je les izpostavljen fotodegradaciji, biodegradaciji, površinskim in notranjim strukturnim spremembam
Matjaž Dremelj, Aleš Straže
doaj   +1 more source

Effects of Slat Parameters on Features of Flow and Noise for an Airfoil

open access: yesHangkong gongcheng jinzhan, 2019
Slat aerodynamic noise is largely dependent on its structure parameters(geometric position and variable outline). The analysis of the effects of these two parameters on the features of flow and aerodynamic noise for an airfoil is an effective method of ...
Wang Hongjian, Luo Wang, Zhang Rui
doaj   +1 more source

Analysis of a turbulent wind field in a street canyon: Good agreement between LES model results and data from a mobile platform

open access: yesMeteorologische Zeitschrift, 2021
Urban wind fields are of concern because the near-ground wind vector drives the ventilation of cities, which involves, among other things, the translocation and dilution of air pollutants.
Bastian Paas   +2 more
doaj   +1 more source

Characteristics of wind turbine wake and particle transport in aeolian sand environment [PDF]

open access: yesE3S Web of Conferences, 2022
For the wind turbine wake field in the aeolian sand environment, the multiphase flow model is used to simulate the wind sand inflow and the wake of the wind turbine is simulated and calculated in combination with the actuation line model based on the ...
Sha Mandi   +3 more
doaj   +1 more source

A Comparative Study of the Buoyancy-Opposed Wall Jet using Different Turbulent Models [PDF]

open access: yesJournal of Applied Fluid Mechanics, 2022
A comparative study of the buoyancy-opposed wall jet has been carried out using RANS methods (including RNG model, Realizable k-ε model, and two low Reynolds number k-ε models) and LES methods (including the subgrid scale model developed by Smagorinsky ...
X. Nie   +4 more
doaj   +1 more source

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