Results 1 to 10 of about 590,895 (149)

CFD Model for Aircraft Ground Deicing: Verification and Validation of an Extended Enthalpy-Porosity Technique in Particulate Two Phase Flows [PDF]

Fluids, 2021
Researchers have focused in the last five years on modelling the aircraft ground deicing process using CFD (computational fluid dynamics) in order to reduce its costs and pollution.
Sami Ernez, François Morency
doaj   +2 more sources

Analytical investigation of soliton dynamics in the Fokas–Lenells equation with generalized self-phase modulation and nonlinear dispersion [PDF]

Scientific Reports
This work investigates the impact of a generalized quadratic-cubic form of self-phase modulation together with nonlinear chromatic dispersion on perturbed quiescent optical solitons governed by the Fokas–Lenells equation.
Hamood Ur Rehman, Kiran Khushi, Yakup Yildirim, Seham Ayesh Allahyani, Daba Meshesha Gusu   +4 more
doaj   +2 more sources

Aqueous biphasic systems containing sodium L-tartrate dihydrate and PEG, experimental and application of extended thermodynamic models

Chemical Thermodynamics and Thermal Analysis, 2023
In the current study, liquid-liquid equilibrium data of aqueous two-phase systems (ATPS) containing polyethylene glycol at the different molecular weights (1000, 2000, 6000, and 8000) - sodium L-tartrate dihydrate - water at 298.15 K were obtained ...
Hamid Bakhshi, Poorya Mobalegholeslam, Seyed Ali Mosavi   +2 more
doaj   +1 more source

Extended UNIQUAC Thermodynamic Modeling of Aqueous Two-Phase Systems, Water + Salt + Short-Chain Alcohol [PDF]

Industrial & Engineering Chemistry Research, 2022
The extended UNIQUAC activity coefficient model for electrolyte solutions was used for simulating the water + short-chain alcohol (1-propanol, 2-propanol, and tert-butanol) + salt (NaCl, KCl, NH4Cl, Na2SO4, and K2SO4) systems in a wide temperature range (0–100 °C).
Alejandro Gomis, Philip L. Fosbøl, Kaj Thomsen   +2 more
openaire   +2 more sources

Development of a phase change model for volume-of-fluid method in OpenFOAM [PDF]

Journal of Heat and Mass Transfer Research, 2016
In this present study, volume of fluid method in OpenFOAM open source CFD package will be extended to consider phase change phenomena with modified model due to condensation and boiling processes.
Mohammad Bahreini, Abbas Ramiar, Ali Akbar Ranjbar   +2 more
doaj   +1 more source

Development of a novel model by combining the intermediate blocking and cake filtration models for assessment of the prevailing fouling mechanism in a microbial fuel cell-facilitated membrane bioreactor

AIP Advances, 2021
This study was carried out on a membrane bioreactor (MBR) facilitated with an electric field provided by a microbial fuel cell (MFC), which effectively reduced membrane contamination and extended the operation time of the MBR from 18 to 24 days.
Bin Hou, Jiajun Chen, Ying Li, Pengxiao Liu, Yao Liu, Jing Lu   +5 more
doaj   +1 more source

EXTENDED MOVING BOUNDARY MODEL FOR TWO-PHASE FLOWS

IFAC Proceedings Volumes, 2005
Abstract Moving boundary models developed to date are based on several hypotheses that cannot be maintained in several applications, such as solar evaporators. In this work, the main modification in the hypotheses is the difference in pressure along the evaporator, due to the length of the real installations to model (500 m and 1400 m).
Luis José Yebra, Manuel Berenguel, Sebastián Dormido   +2 more
openaire   +3 more sources

A Study of Manufacturing and Inventory Strategies in Close-Loop Supply Chain: A Two-Phase News-vendor Model with an Extended Warranty

Journal of Remanufacturing, 2022
Abstract Closed-loop supply chain procedures provide manufacturers with a competitive advantage over their competitors. Also, the supply chain involves a manufacturer and customers, in which the manufacturer produces and sells products from the manufacturing market. Interestingly, combining forward and reversal strategies presents challenges on
P. Jalapathy, M. Mubashir Unnissa
openaire   +1 more source

Clarifying Some Issues in the Regression Analysis of Survey Data

Survey Research Methods, 2007
The literature offers two distinct reasons for incorporating sample weights into the estimation of linear regression coefficients from a model-based point of view. Either the sample selection is nonignorable or the model is incomplete.
Phillip S. Kott
doaj   +1 more source

Simulation of Multi-dimensional Heterogeneous and Intermittent Two-Phase Flow by Using an Extended Two-Fluid Model [PDF]

Journal of Nuclear Science and Technology, 2003
A new gas-liquid two-phase flow simulation method has been developed based on the extended two-fluid model, which has capabilities of both the two-fluid and the interface-tracking models. The VOF (Volume of Fluid) technique has been introduced for suitable interface calculations.
Takuji NAGAYOSHI, Akihiko MINATO, Masaki MISAWA, Akio SUZUKI, Masaharu KURODA, Naoki ICHIKAWA   +5 more
openaire   +1 more source