Results 61 to 70 of about 101,417 (300)

Exact regularized point particle method for multi-phase flows in the two-way coupling regime [PDF]

, 2014
Particulate flows have been largely studied under the simplifying assumptions of one-way coupling regime where the disperse phase do not react-back on the carrier fluid.
Casciola, C. M., Gualtieri, P., Picano, F., Sardina, G.   +3 more
core   +2 more sources

Unsteady Vorticity Force Decompostion - Evaluating Gust Distortion

AIAA Scitech 2021 Forum, 2021
The impulse theory used to calculate the force from a vorticity distribution in two-dimensional, incompressible flow, is re-cast with the aim of estimating the forces generated by a specific flow feature, such as a region of external vorticity passing an object.
Gehlert, Pascal, Andreu Angulo, Ignacio, Babinsky, Holger   +2 more
openaire   +1 more source

Methane Pyrolysis Performance in Catalytic Molten Media for Hydrogen Production From the Perspective of Bubble Column Reactor Design and Configuration

Asia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT In the hydrogen production routes from natural gas (methane), methane pyrolysis offers a cleaner option than the established steam methane reforming by producing CO2‐free hydrogen. However, in fixed bed reactors over solid catalysts, this technology experiences rapid catalyst deactivation due to carbon (coke) deposition encapsulating its ...
Muhammad Irfan Fakarudin, Luqmanulhakim Baharudin, Matthew J. Watson, Wan Nor Roslam Wan Isahak   +3 more
wiley   +1 more source

Analysis on the effect of variable guide vane numbers on the performance of pump as turbine

Advances in Mechanical Engineering, 2018
To study the effects of different guide vane numbers on the unsteady performance of pump as turbine based on the Navier–Stokes equation and standard k-epsilon turbulence model, computation fluid dynamics technology was used to simulate the flow field in ...
FengXia Shi, JunHu Yang, XiaoHui Wang
doaj   +1 more source

The Effect of the Fillets on Submarine Wake Field and Propeller Unsteady Bearing Force

Journal of Marine Science and Engineering, 2023
The uniformity of the wake on the submarine propeller disk is the key factor affecting the vibration and noise performance of the propeller. To study the influence of the fillets on the uniformity of submarine wake field and propeller unsteady bearing ...
Xiang Li, Wenyu Cai, Nianxin Ren, Shuai Sun   +3 more
doaj   +1 more source

On the estimation of time dependent lift of a European Starling during flapping [PDF]

, 2015
We study the role of unsteady lift in the context of flapping wings in birds' flight. Both aerodynamicists and biologists attempt to address this subject, yet it seems that the contribution of the unsteady lift still holds many open questions.
Ben-Gida, Hadar, Guglielmo, Christoper G., Gurka, Roi, Kirchhefer, Adam J., Kopp, Gregory A., Liberzon, Alex, Stalnov, Oksana   +6 more
core   +3 more sources

Research on Evaporation Characteristics and Safe Storage Duration of Marine Liquid Hydrogen Storage Tanks Under the Coupling Effect of Heat Leakage and Sloshing

Asia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT Liquid hydrogen, a zero‐carbon and high–energy‐density fuel, is a promising option for future oceangoing vessels. During maritime transportation, onboard cryogenic tanks are exposed to ambient heat leakage and ship‐induced roll motion, which can trigger sloshing and fundamentally modify the coupled thermo‐fluid processes governing boil‐off and
Yan Deng, Wenfeng Wu, Zhenyu Zhao, Rongsheng Lin, Liangyi Sun, Youfei Liu   +5 more
wiley   +1 more source

Numerical simulation of unsteady aerodynamic interactions of contra-rotating axial fan. [PDF]

PLoS ONE, 2018
This paper describes the investigations performed to better understand unsteady effect that develop in a contra-rotating axial fan. More specifically, this study focuses on rotor-rotor interactions effects on unsteady characteristic and blade aerodynamic
Hengxuan Luan, Liyuan Weng, Yuanzhong Luan   +2 more
doaj   +1 more source

Complexity Analysis of Bubble Plumes in Power Law Fluids Based on Chaos Theory

Asia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT In order to reveal the complexity of the internal flow of bubble plume in power law fluid, the flow characteristics and chaotic characteristics of plume are studied by experiment and theory. The chaotic characteristic parameters (correlation dimension D, K entropy, and Lyapunov exponent λ) of gas velocity under different superficial gas ...
Xin Dong, Chong Dong, Can Xue, Meiheng Peng, Ying Feng, Jianwei Zhang, Yinuo Liu   +6 more
wiley   +1 more source

Theoretical analysis of perching and hovering maneuvers [PDF]

, 2013
Unsteady aerodynamic phenomena are encountered in a large number of modern aerospace and non-aerospace applications. Leading edge vortices (LEVs) are of particular interest because of their large impact on the forces and performance.
Beddoes, Clements R., Dickinson M., Ellington C., Garrick I., Granlund K., Greenberg J. M., Hemati M. S., Katz J., Leishman J. G., Ramesh K., Ramesh K., Ramesh K., Theodorsen T., Viieru J. T. D., von Kármán T.   +15 more
core   +1 more source