Zobrazeno 1 - 10
of 226
pro vyhledávání: '"Davidson, Lars"'
Autor:
Davidson, Lars
Machine Learning (ML) is used for developing wall functions for Improved Delayed Detached Eddy Simulations (IDDES). The ML model is based on KDtree which essentially is a fast look-up table. It searches the nearest target datapoint(s) for which y+ an
Externí odkaz:
http://arxiv.org/abs/2410.17767
Data-driven approaches offer novel opportunities for improving the performance of turbulent flow simulations, which are critical to wide-ranging applications from wind farms and aerodynamic designs to weather and climate forecasting. While convention
Externí odkaz:
http://arxiv.org/abs/2402.08037
A fluid flow through a perforated plate is a common problem in a wide variety of practical applications in thermal, mechanical, chemical, civil, nuclear, ocean and aerospace engineering. In this paper, we proposed a novel fluid flow model for the pre
Externí odkaz:
http://arxiv.org/abs/2304.11730
The synthetic turbulence generator (STG) lies at the interface of the Reynolds averaged Navier-Stokes (RANS) simulation and large eddy simulation (LES). This paper presents a STG for the multiple-relaxation-time(MRT) lattice Boltzmann method(LBM) fra
Externí odkaz:
http://arxiv.org/abs/2304.04214
Autor:
Shao, Xinyuan, Santasmasas, Marta Camps, Xue, Xiao, Niu, Jiqiang, Davidson, Lars, Revell, Alistair J., Yao, Hua-Dong
Forests play an important role in influencing the wind resource in atmospheric boundary layers and the fatigue life of wind turbines. Due to turbulence, a difficulty in the simulation of the forest effects is that flow statistical and fluctuating con
Externí odkaz:
http://arxiv.org/abs/2206.15454
The paper presents a synthetic turbulence generator (STG) for the lattice Boltzmann method (LBM) at the interface of the Reynolds averaged Naiver-Stokes (RANS) equations and the LBM Large Eddy Simulation (LES). We first obtain the RANS velocity field
Externí odkaz:
http://arxiv.org/abs/2205.02774
Autor:
Li, Shuai, Davidson, Lars, Peng, Shia-Hui, Carpio, Alejandro Rubio, Ragni, Daniele, Avallone, Francesco, Koutsoukos, Alexandros
Publikováno v:
In Aerospace Science and Technology October 2024 153
Publikováno v:
In International Journal of Heat and Mass Transfer July 2024 226
Publikováno v:
Physics of Fluids 2021
In this study, noise generation is investigated for a generic voluteless centrifugal HVAC fan at an off-design operation point where tonal noise increases. The simulations are performed by coupling IDDES with the FW-H acoustic analogy, and the experi
Externí odkaz:
http://arxiv.org/abs/2104.13476
Numerical and experimental study of tonal noise sources at the outlet of an isolated centrifugal fan
In this study, tonal noise produced by an isolated centrifugal fan is investigated using unsteady Reynolds-averaged Navier-Stokes (URANS) equations. This type of fans is used in ventilation systems. As the fan propagates tonal noise in the system, it
Externí odkaz:
http://arxiv.org/abs/2011.13645