CFD Simulation and Analysis of Fluid Flow Parameters within a Y-Shaped Branched Pipe

For the first time the importance of mineralogical and lithological-petrographical ranks in the line of geological information ranks is substantiated for implementation of long-term forecasts, standard and non-standard approaches to research of physical and geochemical parameters as a basis of creation of complex system of forecast criteria and prospecting indicators of hydrocarbons within the sedimentary cover of Black sea based on the theory of global fluid-flows derivation. These criteria have different sensitivity to the object (hydrocarbon deposits) and are therefore ranked. The ranking determined the following parameters: 1) seismic data within the object, obtained by the method of deep seismic sounding, RWM SDP; 2) parameters of tectono-geodynamic structures; 3) the main characteristics of sedimentary cover and bedrock; 4) geochemical characteristics; 5) parameters of mineral complexes and fluid inclusions in mineral neoformations; 6) the value of the distribution of meiobenthos. Based on modern views of oil and gas geology, structural-tectonic and lithological-facies criteria are among the main ones. The study of the mineralogical component of sediments is made with using mineralogical, thermobarogeochemical and X-ray spectral methods. Fixation of anomalies of fluid flow at the bottom of the Black Sea as to the distribution of abiotic parameters in order to assess the prospects of oil and gas is determined by structural and tectonic features and high permeability of fluid flow; parameters of mineral complexes (minerals, facies) and genetic connections; heterogeneity of geochemical characteristics of bottom sediments; the presence of hydrocarbon inclusions in authigenic minerals of bottom sediments.

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A novel formulation of 3D Jeffery fluid flow near an irregular permeable surface having chemical reactive species

Advances in Mechanical Engineering ◽

10.1177/16878140211013609 ◽

2021 ◽

Vol 13 (5) ◽

pp. 168781402110136

Author(s):

Mumtaz Khan ◽

Amer Rasheed ◽

Shafqat Ali ◽

Qurat-ul-Ain Azim

Keyword(s):

Fluid Flow ◽

Variable Thickness ◽

Mass Transfer Rate ◽

Skin Friction Coefficient ◽

Deborah Number ◽

Pictorial Representation ◽

Fluid Temperature ◽

Flow Parameters ◽

Opposite Behavior ◽

Thickness Parameter

The main objective of this paper is to offer a comprehensive study regarding solar radiation and MHD effects on 3D boundary layer Jeffery fluid flow over a non-uniform stretched sheet along with variable thickness, porous medium and chemical reaction of first order are assumed. The system of equations representing temperature, velocity and concentration fields are converted into dimensionless form by introducing dimensionless variables. Thereafter, the aforesaid equations are solved with the help of BVP4C in MATLAB. The numerical results obtained through this scheme are more accurate when compared with those in the existing literature. In order to have a pictorial representation, the effects of material and flow parameters on velocity, temperature and concentration profiles are presented through graphs. Moreover, the numerical values of heat and mass transfer rate and skin friction coefficient are given in tabular form. It is evident from the acquired results, that the velocity offers two fold behavior for variable thickness parameter that is, n < 1 close and away from the non-uniform surface. It is also noted that the axial and transverse velocities show an increasing behavior for Deborah number while the fluid temperature and concentration shows opposite behavior at the same time.

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A Unique Approach in Modelling Flow in Tight Oil Unconventional Reservoirs With Viscous, Inertial and Diffusion Forces Contributions

10.1115/omae2021-62957 ◽

2021 ◽

Author(s):

Mohammed Aldhuhoori ◽

Hadi Belhaj ◽

Bisweswar Ghosh ◽

Ryan Fernandes ◽

Hamda Alkuwaiti ◽

...

Keyword(s):

Fluid Flow ◽

Fluid Transport ◽

Synthetic Data ◽

Diffusion Term ◽

Flowing Fluid ◽

New Model ◽

Forchheimer’S Equation ◽

Low Viscosity ◽

Flow Parameters ◽

Unique Approach

Abstract A model for single-phase fluid flow in tight UCRs was previously produced by modifying the flow Forchheimer’s equation. The new modification addresses the fluid transport phenomena into three scales incorporating a diffusion term. In this study, a new liner model, numerically solved, has been developed and deployed for a gas huff and puff project. The new model has been numerically validated and verified using synthetic data and huff and puff case study. Ideally, the new model suits fluid flow in tight UCRs. The modified Forchheimer’s model presented is solved using the MATLAB numerical method for linear multiphase flow. For the huff & puff case, very simple profiles and flow dynamics of the main flow parameters have been established and a thorough parametric analysis and verifications were performed. It has been observed that the diffusion system becomes more prominent in regulating flow velocity with low permeability of the formation rock and low viscosity of the flowing fluid. The findings indicate a behavioral alignment with a previous hypothesis that matches actual reservoir behavior.

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Heat Transfer Effects on Free Convection of Viscous Dissipative Fluid Flow Over an Inclined Plate with Thermal Radiation in the Presence of Induced Magnetic Field

International Journal of Applied Mechanics and Engineering ◽

10.2478/ijame-2021-0008 ◽

2021 ◽

Vol 26 (1) ◽

pp. 122-134

Author(s):

P. Pramod Kumar ◽

Bala Siddulu Malga ◽

Lakshmi Appidi ◽

Sweta Matta

Keyword(s):

Magnetic Field ◽

Fluid Flow ◽

Free Convection ◽

Thermal Radiation ◽

Infinite Plate ◽

Temperature Profiles ◽

Induced Magnetic Field ◽

Inclined Plate ◽

Flow Parameters ◽

Element Technique

AbstractThe principal objective of the present paper is to know the reaction of thermal radiation and the effects of magnetic fields on a viscous dissipative free convection fluid flow past an inclined infinite plate in the presence of an induced magnetic field. The Galerkin finite element technique is applied to solve the nonlinear coupled partial differential equations and effects of thermal radiation and other physical and flow parameters on velocity, induced magnetic field, along with temperature profiles are explained through graphs. It is noticed that as the thermal radiation increases velocity and temperature profiles decrease and the induced magnetic field profiles increases.

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High-Efficient Micro Reacting Pipe with 3D Internal Structure: Design, Flow Simulation, and Metal Additive Manufacturing

Applied Sciences ◽

10.3390/app10113779 ◽

2020 ◽

Vol 10 (11) ◽

pp. 3779

Author(s):

Xiaomin Chen ◽

Di Wang ◽

Jingming Mai ◽

Xiaojun Chen ◽

Wenhao Dou

Keyword(s):

Fluid Flow ◽

Additive Manufacturing ◽

Internal Structure ◽

Cfd Simulation ◽

Structure Design ◽

Design Flow ◽

Mixing Efficiency ◽

Metal Additive Manufacturing ◽

High Efficient ◽

Metal Additive

The micro reacting pipe with 3D internal structure, which is a micromixer with the shape of the pipe, has shown great advantages regarding mass transfer and heat transfer. Since the fluid flow is mostly laminar at the micro-scale, which is unfavorable to the diffusion of reactants, it is important to understand the influence of the geometry of the microchannel on the fluid flow for improving the diffusion of the reactants and mixing efficiency. On the other hand, it is a convenient method to manufacture a micro reacting pipe in one piece through metal additive manufacturing without many post-processing processes. In this paper, a basis for the design of a micromixer model was provided by combining the metal additive manufacturing process constraints with computational fluid dynamics (CFD) simulation. The effects of microchannel structures on fluid flow and mixing efficiency were studied by CFD simulation whose results showed that the internal micro-structure had a significantly positive effect on the mixing efficiency. Based on the simulation results, the splitting-collision mechanism was discussed, and several design rules were obtained. Two different materials were selected for manufacturing with the laser powder bed fusion (L-PBF) technology. After applying pressure tests to evaluate the quality of the formed parts and comparing the corrosion-resistance of the two materials, one material was picked out for the industrial application. Additionally, the chemical experiment was conducted to evaluate the accuracy of the simulation. The experimental results showed that the mixing efficiency of the micro reacting pipe increased by 56.6%, and the optimal determining size of the micro reacting pipe was 0.2 mm. The study can be widely used in the design and manufacture of a micromixer, which can improve efficiency and reacting stability in this field.

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Numerical Simulation of Fluid Flow and Heat Transfer Under Flow Fluctuation Condition in Horizontal Tube

18th International Conference on Nuclear Engineering: Volume 4, Parts A and B ◽

10.1115/icone18-29541 ◽

2010 ◽

Author(s):

Yusheng Liu ◽

Puzhen Gao ◽

Dianchuan Xing

Keyword(s):

Heat Transfer ◽

Fluid Flow ◽

Nuclear Power ◽

Cfd Simulation ◽

Horizontal Tube ◽

Heat Fluxes ◽

Practical Significance ◽

Flow And Heat Transfer ◽

Flow Fluctuation ◽

Computational Fluid Dynamics Cfd

Fluctuating flow is widely presented in nuclear power plant operating procedure. When the fluctuating flow occurs in the loop, the fluid flow and heat transfer in the core will be affected, which makes the study of flow fluctuation have more practical significance. With computational fluid dynamics (CFD), characteristics of fluid flow and heat transfer are numerically simulated in a horizontal tube under periodical fluctuating flow. The influences of different factors on the fluid flow and heat transfer are analyzed. The simulation results of steady flow and heat transfer in horizontal tube agree with the traditional empirical correlations’ results, which validates the feasibility of doing this research using CFD simulation. The horizontal tube fluctuation flow and heat transfer with different flow fluctuation periods, fluctuation relative amplitudes and heat fluxes are numerically simulated. The results show that the smaller the flow fluctuation period is, the larger the flow fluctuation relative amplitude we get, and the more evident influence of flow fluctuation on fluid flow and heat transfer can be found. The larger the heat flux is, the larger amplitude of temperature fluctuation of fluid will be. What is more, there is a lag in phase between friction coefficient and velocity, which is not presented between heat transfer coefficient and velocity.

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Fluid Flow Characteristics of a Confined Slot Jet Without or With a Target Surface

Fluids Engineering ◽

10.1115/imece2005-80028 ◽

2005 ◽

Author(s):

L. K. Liu ◽

C. J. Fang ◽

M. C. Wu ◽

C. Y. Lee ◽

Y. H. Hung

Keyword(s):

Reynolds Number ◽

Fluid Flow ◽

Fluid Velocity ◽

Flow Characteristics ◽

Target Surface ◽

Streamwise Velocity ◽

Separation Distance ◽

Experimental Investigations ◽

Flow Parameters ◽

Fluid Flow Characteristics

A series of experimental investigations with a stringent measurement method on the fluid flow characteristics of slot jet without or with a target surface have been successfully conducted. From all the fluid velocity data measured in the present study, the experimental conditions have been verified to be spanwise-symmetrically maintained and the results have been achieved in a spanwise-symmetric form. Three types of jet configuration without or with target surface are investigated: (A) Confined Slot Jet without Target Surfaces – the fluid flow parameters studied in the present investigation is the jet Reynolds number (ReD). Its ranges are ReD=506-1517. (B) Confined Slot Jet with Smooth Surfaces – the fluid flow parameters studied in the present investigation include the ratio of jet separation distance (H) to nozzle width (W) and the jet Reynolds number (ReD). The ranges of the relevant parameters are H/W=2–10 and ReD=504–1526. (C) Confined Slot Jet with Extended Surfaces – the fluid flow parameters studied include the ratio of jet separation distance (H) to nozzle width (W), the Reynolds number (ReD) and the ratio of extended surface height (Hes) to nozzle width (W). Their ranges are H/W=3–10, Hes/W=0.74-3.40 and ReD=501–1547. The flow characteristics such as the local mean streamwise velocity distribution, mean streamwise velocity decay along jet centerline, local jet turbulence intensity distribution, and turbulence intensities along jet centerline have been presented and discussed in the study.

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Proximity Effects on Characteristics of Flow around Three Inline Square Cylinders

Mathematical Problems in Engineering ◽

10.1155/2019/1752803 ◽

2019 ◽

Vol 2019 ◽

pp. 1-14 ◽

Cited By ~ 4

Author(s):

Waqas Sarwar Abbasi ◽

Shams Ul Islam ◽

Hamid Rahman

Keyword(s):

Fluid Flow ◽

Bluff Body ◽

Flow Characteristics ◽

Proximity Effects ◽

Flow Parameters ◽

Square Cylinders ◽

Fluid Flow Characteristics ◽

Bluff Body Flow ◽

Boltzmann Method ◽

Gap Spacing

This work presents the numerical investigations performed to study the proximity effects on fluid flow characteristics around three inline square cylinders using the lattice Boltzmann method. For this purpose the gap spacing (g) is systematically varied in the range 0.5 to 16 diameters of cylinder by keeping Reynolds number fixed at 200. Five different flow patterns are observed at different values of spacing: bluff body flow, gap trapped flow, irregular flow, alternate shedding, and modulated shedding. These patterns have a significant effect on flow induced forces and vortex shedding frequency. The spacing value g = 2 is found to be critical due to sudden changes in fluid flow characteristics. The flow parameters of first cylinder are found to be closer to single cylinder values but for middle and third cylinder the differences confirm the wake interference effect even at large values of spacing.

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CFD Simulation of Dielectric Fluid Flow in Micro Electro Discharge Milling Process

Materials Today Proceedings ◽

10.1016/j.matpr.2018.10.277 ◽

2018 ◽

Vol 5 (11) ◽

pp. 24792-24798

Author(s):

S.A. Mullya ◽

G. Karthikeyan

Keyword(s):

Fluid Flow ◽

Cfd Simulation ◽

Milling Process ◽

Dielectric Fluid

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Fluid Flow and Solute Transfer in a Tube with Variable Wall Permeability

Zeitschrift für Naturforschung A ◽

10.1515/zna-2019-0071 ◽

2019 ◽

Vol 74 (12) ◽

pp. 1057-1067

Author(s):

M. Varunkumar ◽

P. Muthu

Keyword(s):

Fluid Flow ◽

Solute Concentration ◽

Solute Transfer ◽

Variable Permeability ◽

Flow Parameters ◽

Permeability Parameter ◽

Uniform Cross Section ◽

Wall Permeability ◽

Variable Wall ◽

Solute Clearance

AbstractWe considered a steady flow of viscous incompressible fluid and solute transfer in an axisymmetric tube of uniform cross section with variable wall permeability, which is relevant to the study of movement of solute across the glomerular capillaries. The solutions for the nonlinear governing equations of the fluid flow and solute transfer are obtained by analytical/numerical methods. The combined effect of variable wall permeability and flow parameters on the hydrostatic pressure, osmotic pressure, velocity profiles, concentration profiles, and the total solute clearance are investigated and are presented in this paper. It is found that an increase in the variable permeability parameter increases the solute concentration at the wall.

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