Results 21 to 30 of about 280,105 (248)

Impacts of renewable portfolio standard on carbon emission peaking and tradable green certificate market: A system dynamics analysis method

open access: yesFrontiers in Energy Research, 2022
With the announcement of the carbon peaking and carbon neutrality target in China as well as the launch of the nationwide green power renewable generation trading, one of the key issues is how to design an effective renewable portfolio standard (RPS) and
Yidi Zhang   +9 more
doaj   +1 more source

Car Fuel Economy Simulation Forecast Method Based on CVT Efficiencies Measured from Bench Test

open access: yesChinese Journal of Mechanical Engineering, 2018
Researchers face difficulties in studying the effects of driveline efficiency on car fuel economy via bench and road tests because of long working periods, high costs, and heavy workloads. To simplify the study process and shorten test cycles, a car fuel
Yu-Long Lei   +5 more
doaj   +1 more source

An immersed boundary method for practical simulations of high-Reynolds number flows by k-ε RANS models

open access: yesJournal of Fluid Science and Technology, 2021
A combustion simulation software tool, “HINOCA”, has been developed for automotive engine analysis. HINOCA is based on fully compressible Navier-Stokes equations, which are Reynolds-averaged (RANS) or spatially-filtered (LES), and employs the Cartesian ...
Hiroki YAO   +2 more
doaj   +1 more source

Application of Large Eddy Simulation in the process of the Multi-Physics Field Coupling in a Combustion Chamber

open access: yesMATEC Web of Conferences, 2015
Numerical simulation is the main method to solve turbulence problems. As one of the three methods which are commonly used in large-eddy simulation model (LES) is the most effective and promising research method. The basic idea of large-eddy simulation is
Xu Rang-Shu, Wang Kai, Xu Long, Yu Xin
doaj   +1 more source

Vortex-Induced Vibration and Fatigue Damage Assessment for a Submarine Pipeline on a Sand Wave Seabed

open access: yesJournal of Marine Science and Engineering, 2023
Sand waves are commonly formed on the sandy seabed of the continental shelf and characterized by their regular wave-like shape. When a submarine pipeline is laid on this type of seabed, it often experiences free spans due to the unevenness of the seabed.
Xing Zou   +4 more
doaj   +1 more source

Vehicle Rollover Warning and Control Based on Attitude Detection and Fuzzy PID

open access: yesApplied Sciences, 2023
Car rollovers are a class of serious traffic accidents that can easily cause heavy casualties and property damage, particularly for special operation vehicles.
Ruiyang Wang   +4 more
doaj   +1 more source

An Economical Route Planning Method for Plug-In Hybrid Electric Vehicle in Real World

open access: yesEnergies, 2017
Relieving the adverse effects of automobiles on the environment and natural resources has drawn the attention of numerous researchers. This paper seeks a new path to reach a target by focusing on the synergy of the vehicle and the environment.
Yuanjian Zhang   +9 more
doaj   +1 more source

Research on the Volumetric Efficiency of a Novel Stacked Roller 2D Piston Pump

open access: yesMachines, 2021
In order to improve the volumetric efficiency of the axial piston pump, this paper proposes a novel stacked roller 2D piston pump. It utilizes the alternate communication between the distribution cylinder and the oil intake and discharge ports of the ...
Chenchen Zhang   +5 more
doaj   +1 more source

Research on flight simulation repositioning algorithm and its application

open access: yesHangkong gongcheng jinzhan
In the application of flight simulator, it is required that the aircraft simulation model quickly relocates to a specific state according to the training subject requirements, so it is crucial to quickly obtain the initial state parameter values of the ...
WU Yuanhang, ZHANG Qiang, SHEN Ce
doaj   +1 more source

Passive Drag Reduction Optimization for Complex Commercial Vehicle Models [PDF]

open access: yesJournal of Applied Fluid Mechanics
The long-distance transportation of heavy commercial vehicles is facing increasing pressure. Low wind resistance and low fuel consumption will become the objective requirements and development trend of heavy commercial vehicles.
G. Liao   +7 more
doaj   +1 more source

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