Modeling the Effect of Reduced Liquid-Wetting on Spontaneous Imbibition for Condensate Blocking Applications

2012 ◽  
Author(s):  
Nour El Cheikh Ali ◽  
Mahmoud Abouseida ◽  
Mashhad Fahes
Keyword(s):  
Numerical Modeling ◽  
Carbonate Rocks ◽  
Capillary Forces ◽  
Experimental Results ◽  
Spontaneous Imbibition ◽  
Altered Rock ◽  
Liquid Saturation ◽  
Expected Result ◽  
Condensate Blocking

In this paper, we present our interpretation for some of the unexpected experimental results that we obtained during 3D spontaneous imbibition experiments. We treated carbonate rocks with flourochemical polymers where we altered the wettability towards reduced liquid-wetting. The expected result is a reduced imbibition rate as a result of reduced capillary forces. Although the early imbibition rate decreased, we observed an increase in rate at late imbibition time resulting in a higher liquid saturation in the altered rock. We used numerical modeling to interpret the result and show that this observation actually represents the target wettability state we should be seeking in some applications.

Sanding prediction: Experimental results and numerical modeling

Poromechanics ◽  
2020 ◽  
pp. 457-462
Author(s):  
P. Papanastasiou ◽  
E.D. Nicholson ◽  
G. Goldsmith ◽  
J. Cook
Keyword(s):  
Numerical Modeling ◽  
Experimental Results

Experimental Validation of Computer Models for Food and Polymer Extrusion

2003 ◽  
Author(s):  
Yogesh Jaluria
Keyword(s):  
Numerical Modeling ◽  
Numerical Models ◽  
Strong Support ◽  
Chemical Conversion ◽  
Operating Conditions ◽  
Experimental Results ◽  
Twin Screw Extruders ◽  
Twin Screw ◽  
Temperature Dependent Properties ◽  
Good Agreement

The accuracy and validity of the mathematical and numerical modeling of extruders for polymers and for food are considered in terms of experimental results obtained on typical full-size single and twin-screw extruders. The fluid is treated as non-Newtonian and with strong temperature-dependent properties. The chemical conversion of food during extrusion is also considered. The numerical modeling is employed for steady-state transport, for a range of operating conditions. Following grid-independence studies, the results obtained are first considered in terms of the expected physical behavior of the process, yielding good agreement with observations presented in the literature. The results are then compared with detailed and qualitative experimental results available from previous investigations to evaluate their accuracy. Good agreement with experimental data is obtained, lending strong support to the mathematical and numerical models.

A Study on the Ricochet of Concrete Debris Against Soil

2015 ◽  
Vol 12 (04) ◽  
pp. 1540009 ◽  
Author(s):  
J. Xu ◽  
C. K. Lee ◽  
S. C. Fan
Keyword(s):  
Numerical Modeling ◽  
Kinetic Energy ◽  
Incident Angle ◽  
Experimental Results ◽  
Impact Process ◽  
Impact Responses ◽  
The Impact

In this study, the impact responses of concrete debris against soil are investigated. Three types of concrete debris are shot at soil with different incident conditions in experiments. A numerical modeling for the impact process is established and calibrated by the experimental results. A further study on the effect of debris size is then carried out based on the calibrated numerical modeling. A set of formulation is presented to predict the outgoing velocity and the outgoing angle in terms of the incident velocity and the incident angle. Critical lethality curves are derived based on the assumption of a critical kinetic energy of 79 J.

scholarly journals Detection of Dynamic Modulus and Crack Properties of Asphalt Pavement Using a Non-Destructive Ultrasonic Wave Method

2019 ◽  
Vol 9 (15) ◽  
pp. 2946 ◽  
Author(s):  
Weiguang Zhang ◽  
Muhammad Arfan Akber ◽  
Shuguang Hou ◽  
Jiang Bian ◽  
Dong Zhang ◽  
...  
Keyword(s):  
Finite Element ◽  
Numerical Modeling ◽  
Wave Propagation ◽  
Ultrasonic Wave ◽  
Asphalt Concrete ◽  
Ultrasonic Testing ◽  
Experimental Results ◽  
Dynamic Moduli ◽  
Ultrasonic Wave Propagation ◽  
Non Destructive

Non-destructive ultrasonic testing has attained popularity due to its robustness and cost-effectiveness in monitoring the structural health and performance evaluation of pavements, thus replacing traditional methods. This paper presents the application of an explicit finite element method for the modeling of ultrasonic wave propagation through asphalt concrete. Prior to modeling, non-destructive ultrasonic testing was conducted on four different types of asphalt concrete (AC-13, SMA-13, AC-20, and AM-20). Based on acoustic information (wave velocity) obtained in non-destructive testing (NDT) and density, the dynamic moduli of these asphalt concretes were evaluated and used in numerical modeling of ultrasonic wave propagation using the commercial software package ABAQUS. The ultrasonic wave results obtained by numerical modeling were compared with experimental results. This comparison showed a good fit between the finite element (FE) results and the experimental results and confirmed a good FE approach for ultrasonic wave propagation. In addition, the influence of varying dynamic moduli, density, varying location, and crack size/depth on ultrasonic wave propagation was analyzed.

АНАЛИЗ МЕТОДОВ МАТЕМАТИЧЕСКОГО МОДЕЛИРОВАНИЯ МЕМРИСТОРОВ

2020 ◽  
Vol 96 (3s) ◽  
pp. 556-560
Author(s):  
Ф.П. Мещанинов ◽  
Е.С. Горнев ◽  
В.С. Кожевников ◽  
Д.А. Жевненко
Keyword(s):  
Numerical Modeling ◽  
Experimental Results ◽  
Modeling Techniques

В работе рассматриваются различные методы моделирования мемристоров и мемристивных структур. Для каждой модели выполнено численное моделирование и сравнение с экспериментальными результатами. Для этого была разработана метрика и критерии сравнения моделей между собой. The paper considers various modeling techniques for memristors and memristive structures. For each model, numerical modeling and comparison with experimental results have been performed. To that end, a metric and criteria for comparing models with each other have been developed.

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