scholarly journals DETERMINING THE EFFECT OF NOZZLE GROOVE ON THE FLUID FLOW THROUGH VISCOUS 2D PLANAR FLUID

2021 ◽  
pp. 1-8
Author(s):  
Obai Younis ◽  
Reem Ahmed ◽  
Ali Hamdan ◽  
Dania Ahmed ◽  
Ali Ahmed ◽  
...  
Keyword(s):  
Fluid Flow ◽  
Numerical Method ◽  
Surface Area ◽  
Nozzle Exit ◽  
New Approach ◽  
Numerical Stimulation ◽  
Flow Through ◽  
Different Dimensions ◽  
The One

The study aims to determine the effect of nozzle groove on fluid flow through viscous 2D planar fluid. To fulfil the study’s aim, numerical method was adopted to introduce grooves of different dimensions from the nozzle exit. The study adopts SoldWork software was used to design nozzles and introduce groove shaped nozzles, each consisting of six different designs. The nozzle base model used in this study was similar to the one used in a previous study. The procedure was performed with different pressures (8, 10, and 12 bar) at the similar firefighting nozzle. The velocities contours were predicted based on the choice of nozzle section during the numerical stimulation. The results of present study demonstrated a new approach that can be used for increasing velocity at various types of modified nozzles through grooves at different pressures and locations. For grooves, dimensions 1×1 (mm) and location 15 mm at 8 bar, 10 bar and 12 bars showed no effect on velocity as it reduces velocity by increasing surface area. The velocity increases with increasing pressure in proportion relationship. This clearly explains that the groove has no effect on velocity as it increases due to increase in pressure. This is because the groove reduces the velocity by increasing surface area. The study concludes that use of groove increases velocity of water that further improves nozzles operation.

Prediction of Fluid Flow in Artificial Cancellous Bone

2014 ◽  
Vol 695 ◽  
pp. 393-397
Author(s):  
Elsa Syuhada Abdull Yamin ◽  
Nor Azwadi Che Sidik
Keyword(s):  
Fluid Flow ◽  
Pore Size ◽  
Surface Area ◽  
Pore Diameter ◽  
Bone Surface ◽  
Flow Conditions ◽  
Morphological Aspects ◽  
Flow Through ◽  
Structure Result ◽  
Dynamics Method

The permeability of the blood in the artificial cancellous are affected by certain morphological aspects that include pore diameter, pore size, porosity and the bone surface area. In this study, computational fluid dynamics method is used to study the fluid flow through the cancellous structure. Result of the present work show that geometries with the same porosity and overall volume can have different permeability due to the differences in bone surface area. The hexahedron geometry has the highest permeability under stimulated blood flow conditions, where the cylindrical geometry has the lowest. Linear relationship is found between permeability and the two physical properties, bone surface area and the pore size.

scholarly journals A numerical method for simulating fluid flow through 3-D fracture networks

2016 ◽  
Vol 33 ◽  
pp. 1271-1281 ◽  
Author(s):  
Na Huang ◽  
Yujing Jiang ◽  
Bo Li ◽  
Richeng Liu
Keyword(s):  
Fluid Flow ◽  
Numerical Method ◽  
Fracture Networks ◽  
Flow Through

A One-Way Coupled Volume of Fluid and Eulerian-Lagrangian Method for Simulating Sprays

2016 ◽  
Author(s):  
Shaoping Quan ◽  
Peter Kelly Senecal ◽  
Eric Pomraning ◽  
Qingluan Xue ◽  
Bing Hu ◽  
...  
Keyword(s):  
Experimental Data ◽  
Fluid Flow ◽  
Nozzle Exit ◽  
Volume Of Fluid ◽  
Droplet Breakup ◽  
Fluid Field ◽  
Engine Combustion ◽  
Flow Information ◽  
Pros And Cons ◽  
The One

Volume of Fluid (VOF) and Eulerian-Lagrangian (EL)/Discrete Droplet Methods (DDM) are two of the most widely used methods in spray simulations. It is well known that these two methods have their pros and cons. VOF is good at capturing the transient detailed flow physics, while it is usually very expensive. EL is very efficient; however, to inject spray parcels, some experimental/pre-computed information is needed, such as rate of injection, and/or the parcel radius distributions, etc. It is often the case, the detailed fluid flow information at the nozzle exit, which is essential for downstream droplet breakup and coalescence, cannot be accounted in the EL method. In this paper, we developed a one-way coupled approach, in which VOF is employed to compute the detailed fluid field in the injector and this fluid information is then utilized by EL for the injection of parcels at the nozzle exit. The one-way coupled approach is used to calculate some ECN (Engine Combustion Network) spray cases, such as Spray A and Spray H. The simulated results are compared to the experimental data, and satisfactory agreement is obtained.

A New Approach for Modelling Fluid Flow Through a Yarn Package

2005 ◽  
Vol 9 (3) ◽  
pp. 64-70 ◽  
Author(s):  
Xiaoming Zhao ◽  
R H Wardman ◽  
R Shamey
Keyword(s):  
Fluid Flow ◽  
New Approach ◽  
Flow Through

scholarly journals Viscoelastic fluid flow through a porous filler during molding of composite products in closed molds

2020 ◽  
pp. 17-18
Author(s):  
A. V. Baranov ◽  
S. A. Yunitsky
Keyword(s):  
Heat Transfer ◽  
Fluid Flow ◽  
Numerical Method ◽  
Viscoelastic Fluid ◽  
Finite Differences ◽  
Newtonian Liquid ◽  
Brinkman Equation ◽  
Porous Filler ◽  
Flow And Heat Transfer ◽  
Flow Through

The flow and heat transfer during impregnation of the filler with a non-Newtonian liquid in the process of forming composite products in closed forms is investigated. The flow is described by the Brinkman equation. In terms of rheology, medium is the Phan-Thien-Tanner fluid. The problem is solved by a numerical method of finite differences.

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