Results 131 to 140 of about 373,804 (364)

The influence of the wind structure definition in the standard k-ε model of turbulence on the distribution of pressure coefficient on the façades of the prism

Budownictwo i Architektura, 2012
The paper deals with the influence of the definition of turbulence kinetic energy k and dissipation of turbulence kinetic energy ε on wind pressure coefficient distribution on walls of rectangular model.
Paulina Jamińska
doaj   +1 more source

Optimal Nanoparticle Size in SiO₂/Al₂O₃‐Water Nanofluids for Enhancing Intercooler Thermal Enhancement: A Conjugate Heat Transfer Study

Energy Science &Engineering, EarlyView.
The simulation shows that the comprehensive heat transfer effect of using nanofluids as cooling liquid is greater than 1.30 nm SiO2/water and 40 nmAl2O3/water nanofluids have the best heat transfer enhancement effect, while all nanofluids of 30 nm Al2O3/water have the best heat transfer enhancement effect.
Bing Dai, Jingqi Yin, Juhui Chen, Tao Xu, Michael Zhurakov, Siarhei Lapatsin, Wenrui Jiang   +6 more
wiley   +1 more source

On dissipation timescales of the basic second-order moments: the effect on the energy and flux budget (EFB) turbulence closure for stably stratified turbulence [PDF]

Nonlinear Processes in Geophysics
The dissipation rates of the basic second-order moments are the key parameters playing a vital role in turbulence modelling and controlling turbulence energetics and spectra and turbulent fluxes of momentum and heat.
E. Kadantsev, E. Kadantsev, E. Mortikov, E. Mortikov, E. Mortikov, A. Glazunov, A. Glazunov, N. Kleeorin, N. Kleeorin, I. Rogachevskii, I. Rogachevskii   +10 more
doaj   +1 more source

Large-scale energy spectra in surface quasi-geostrophic turbulence

, 2004
The large-scale energy spectrum in two-dimensional turbulence governed by the surface quasi-geostrophic (SQG) equation $$\partial_t(-\Delta)^{1/2}\psi+J(\psi,(-\Delta)^{1/2}\psi) =\mu\Delta\psi+f$$ is studied.
Bowman, John C., Tran, Chuong V.
core   +2 more sources

Computational Analysis of Spray Angle Effects on Combustion and Emissions in Methane‐Diesel Dual‐Fuel Engine

Energy Science &Engineering, EarlyView.
This study concluded that wider spray angles produce wall impingement and greater unburned hydrocarbons in methane‐diesel dual‐fuel engines, whereas 110° balances efficiency and emissions. ABSTRACT A diesel methane dual fuel engine appears as a potential means for lowering emissions while retaining useful thermal efficiency.
Abdullah Al Rifat, Md. Arafat Rahman, Md. Mizanur Rahman, Tafsirul Hassan, Md Nazmul Haque   +4 more
wiley   +1 more source

Wave-turbulence decomposition and turbulence parameterization in aquatic wave environments using improved Synchrosqueezed Wavelet Transform (iSWT)

Ecological Informatics
Accurate quantification of near-surface turbulence is essential for understanding the dynamics of turbulent mixing and mass transport in aquatic systems. However, field measurements of near-surface flow velocities often include contributions from surface
Xingxing Zhao, Daobin Ji, Lianghong Long, Zhongyong Yang, Zhengjian Yang, Defu Liu, Andreas Lorke   +6 more
doaj   +1 more source

Electron-scale reduced fluid models with gyroviscous effects

, 2017
Reduced fluid models for collisionless plasmas including electron inertia and finite Larmor radius corrections are derived for scales ranging from the ion to the electron gyroradii.
Passot, T., Sulem, P. L., Tassi, E.
core   +3 more sources

Turbulence-Kinetic-Energy Budget in the Urban-Like Boundary Layer Using Large-Eddy Simulation

Boundary-layer Meteorology, 2020
G. Tian, B. Conan, I. Calmet
semanticscholar   +1 more source

Effects of Concentrations of Water‐Based MgO Nanofluid on Heat Transfer Performance in Shell‐and‐Tube Heat Exchanger

Energy Science &Engineering, EarlyView.
This figure shows the variation of the total heat transfer coefficient of a shell and tube heat exchanger with different concentrations of water‐based MgO nanofluids at different inlet flow rates. The results indicate that the total heat transfer coefficient increases with increasing flow velocity, and at different volume fraction settings, the ...
Li Zhang, Yifan Cheng, Yang Liu, Yongju Zhang, Ziyun Chen   +4 more
wiley   +1 more source

Heat Convective Effects on Turbulence and Airflow inside an B767 Aircraft Cabin

Fluids, 2019
Thermal plumes generated by human bodies can affect the temperature and humidity of the surrounding environment. An experimental study investigated the effects of thermal plumes formed by aircraft passengers on airflow and turbulence characteristics ...
Maher Shehadi
doaj   +1 more source