Results 111 to 120 of about 6,264 (285)

Numerical Simulations of Unsteady Fluid Forces in Heat Exchanger Tube Bundles

, 2011
Heat transfer is the main concern in designing shell and tube heat exchangers. Flowinduced vibration (FIV) is also a major concern while designing shell and tube heat exchangers. Fluidelastic instability (FEI), turbulence, periodic instability, and acoustic resonance are the FIV mechanisms that could cause to vibrations in heat exchanger tube bundles ...
H. Omar, M. Hassan, A. Gerber
openaire   +2 more sources

EventFlow: Real‐time neuromorphic event‐driven classification of two‐phase boiling flow regimes

Droplet, EarlyView.
We present a real‐time flow regime classification framework that integrates neuromorphic event‐driven sensing with deep recurrent neural networks. Unlike traditional frame‐based approaches, our system captures sparse event streams from an event‐based camera, representing only the dynamic brightness changes at the individual pixel level.
Sanghyeon Chang, Srikar Arani, Nishant Sai Nuthalapati, Youngjoon Suh, Nicholas Choi, Siavash Khodakarami, Md Rakibul Hasan Roni, Nenad Miljkovic, Aparna Chandramowlishwaran, Yoonjin Won   +9 more
wiley   +1 more source

The Effects of Unsteady On-Road Flow Conditions on Cabin Noise [PDF]

, 2013
On-road, a vehicle experiences unsteady flow conditions due to turbulence in the natural wind, moving through the unsteady wakes of other road vehicles and travelling through the stationary wakes generated by roadside obstacles.
OETTLE, NICHOLAS,RICHARD
core  

An assessment of stress and production rate of sucker rod heat pipes in oil well pumping system

Deep Underground Science and Engineering, EarlyView.
The sucker rod pumping system is the preferred oil extraction technique. The concept about equipping the hollow vacuum space in solid sucker rods with heat pipe has been scrutinized in terms of stress and oil production evaluation. Abstract The implementation of the heat pipe concept in sucker rods for oil pumping systems negates the requirement for an
R. S. Anand, Ang Li, Wenbo Huang, Juanwen Chen, Qingshan Ma, Fangming Jiang   +5 more
wiley   +1 more source

Performance assessment of a potential underground thermal storage facility: Case study of the closed mine Prosper‐Haniel in the Ruhr coal mining area in Germany

Deep Underground Science and Engineering, EarlyView.
This study demonstrates the feasibility of an underground closed‐loop thermal storage facility at a post‐mining site, intended for seasonal heat energy storage. Its principal design shows water flow directions in winter and summer (1, 2), heat pumps (3), an upper water reservoir (4), and connecting pipes (5).
Dmytro Rudakov, Oleksandr Inkin
wiley   +1 more source

Code to Code Comparison of Aircraft-Mode Tilt-Rotor Aerodynamics [PDF]

, 2012
A global comparison of several blind-test numerical predictions of the aerodynamic field around the Erica model in aircraft mode, carried out by some Partners of the NICETRIP consortium, is presented.
Beaumier, Philippe, M. Biava, W. Khier, Decours, Julien, P. Beaumier, Vigevano, Luigi, T. Kneisch, J. Decours, Kneisch, Thomas, Biava, Massimo, Khier, Walid   +10 more
core  

Integration of crosswind forces into train dynamic modelling [PDF]

, 2011
In this paper a new method is used to calculate unsteady wind loadings acting on a railway vehicle. The method takes input data from wind tunnel testing or from computational fluid dynamics simulations (one example of each is presented in this article ...
G Xie, S Iwnicki, C Baker, Iwnicki, S, Ongaro, D., H Hemida, Hemida, H., D Ongaro, Xie, G., Ongaro, D, Baker, C., Iwnicki, S., Baker, Christopher, Hemida, Hassan; id_orcid, Xie, G   +14 more
core   +1 more source

Optimal design of a pipe isolation plugging tool using a computational fluid dynamics simulation with response surface methodology and a modified genetic algorithm

Advances in Mechanical Engineering, 2017
In this work, the flow effects on an isolation plugging tool in a pipeline were numerically investigated using computational fluid dynamics. The study focused on optimal parameter design for the isolation plugging tool, which reduced the unsteady force ...
Hong Zhao, Hao-Ran Hu
doaj   +1 more source

Blade Count and Rotational Speed Sensitivity of Vertical‐Axis Turbines Under Guided Vehicle‐Generated Transient Wakes

Energy Science &Engineering, EarlyView.
Passing vehicles generate short‐duration wakes that can be redirected toward a vertical‐axis turbine. The interaction between wake structure, blade count, and rotational speed governs transient torque production. Low‐solidity configurations combined with tuned rotational speed enhance energy extraction under vehicle‐induced gusts.
Aydin Ulus, Stefan Ilie Moldovan
wiley   +1 more source

Numerical investigation on heat and mass transfer effect of micropolar fluid over a stretching sheet through porous media

Alexandria Engineering Journal, 2015
The present paper deals with the study of unsteady heat and mass transfer characteristics of a viscous incompressible electrically conducting micropolar fluid.
B. Mohanty, S.R. Mishra, H.B. Pattanayak
doaj   +1 more source