Results 1 to 10 of about 136,501 (295)

RANS turbulence model development using CFD-driven machine learning

open access: yesJournal of Computational Physics, 2020
This paper presents a novel CFD-driven machine learning framework to develop Reynolds-averaged Navier-Stokes (RANS) models. The CFD-driven training is an extension of the gene expression programming method (Weatheritt and Sandberg, 2016), but crucially ...
Yaomin Zhao   +2 more
exaly   +3 more sources

Numerical analysis of o propeller in ground effect [PDF]

open access: yesScientific Technical Review, 2022
Detailed studies of propeller flows are regaining both interest and significance worldwide, as the number of their different design and applications (particularly for futuristic urban air vehicles) continues to grow.
Svorcan Jelena   +3 more
doaj   +1 more source

Structural Classification Methodology and Assignment of General Shop Costs for the Industrial Company’s Production Cost

open access: yesУчёт. Анализ. Аудит, 2021
The paper describes the issues of improving the grouping and rearrangement of indirect costs of industrial companies, as well as their attribution to the production costs (works, services).
I. E. Mizikovskii
doaj   +1 more source

Prediction of a Container Ship Squat in Suez Canal Using CFD [PDF]

open access: yesPort Said Engineering Research Journal, 2022
Minor grounding or contact accidents may occur from time to time in Suez Canal. However, in March 2021, the economic ramifications of a critical grounding resounded around the world and were still felt after the Ever-Given container ship was freed from ...
Osama El Desouky, yasser Elhenawy
doaj   +1 more source

Numerical Investigation of an Unsteady and Anisotropic Turbulent ‎Flow Downstream a 90° Bend Pipe with and without Ribs [PDF]

open access: yesJournal of Applied and Computational Mechanics, 2021
In this work, a numerical study of the dynamical behavior of unsteady and anisotropic turbulent flow downstream a 90° bended pipe was presented. For this purpose, comparative computations are carried out employing two flow configurations, bend pipe with ...
Rachid Chiremsel   +3 more
doaj   +1 more source

Computational Study of Flow around 2D and 3D Tandem Bluff Bodies [PDF]

open access: yesJournal of Applied and Computational Mechanics, 2021
Numerical simulations have been carried out to advance our current understanding of flow around two dimensional (2D) and three dimensional (3D) square shaped tandem bluff bodies at a Reynolds number of 22,000, especially to shed light on the sudden ...
Terrance Charles, Zhiyin Yang, Yiling Lu
doaj   +1 more source

Influence of lift distribution coefficient on hydrodynamic performance of propeller in forward and astern mode of operation by numerical analysis

open access: yesZhongguo Jianchuan Yanjiu, 2022
ObjectivesThe influence of the geometrical parameters of propeller on its hydrodynamic performance in forward and astern mode of operation is studied by numerical simulation.MethodsTaking a 33 000 DWT oil product tanker as the application object, the ...
Wei HE   +5 more
doaj   +1 more source

Numerical simulation of wake vortex for the flight near the ground with different boundary conditions

open access: yesEngineering Applications of Computational Fluid Mechanics, 2022
The aerodynamic performances of aircraft change due to the ground effect for flights near the ground. The air cushion generated near the ground will change the development of the aircraft wake vortex.
Zeyu Zhang   +5 more
doaj   +1 more source

UNCERTAINTY QUANTIFICATION OF SELF-PROPULSION ANALYSES WITH RANS-CFD AND COMPARISON WITH FULL-SCALE SHIP TRIALS

open access: yesBrodogradnja, 2022
RANS-CFD is a well-established tool with widespread use in maritime industry and research. Valuable information might be extracted from the results of such simulations in terms of ship resistance and flow field variables.
Ahmet Ziya Saydam   +3 more
doaj   +1 more source

Influence of thermal effects to pollutant dispersion in idealized street canyon: numerical study

open access: yesВестник КазНУ. Серия математика, механика, информатика, 2022
In this work, we numerically investigate the process of atmospheric air pollution at various values of the road temperature in idealized urban canyons. To solve this problem, the Reynolds-averaged Navier-Stokes equations (RANS) were used.
A. Issakhov, T. Yang, Perizat Omarova
doaj   +1 more source

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