Thermally fully developed CNTs suspended nano fluid flow through annular sector duct

2021 ◽  
pp. 095765092110082
Author(s):  
Farhan Ahmed
Keyword(s):  
Fluid Flow ◽  
Control Volume ◽  
Pure Water ◽  
Published Data ◽  
Algebraic Equations ◽  
Algebraic Form ◽  
Cross Sectional ◽  
Nano Fluid ◽  
Annular Sector ◽  
Flow Through

Here we simulate hydrodynamically and thermally fully developed carbon nano tubes, ( CNTs) suspended nano fluid flow through annular sector duct. Hydrodynamic results are found by using no slip boundary condition on the solid walls of duct; whereas H1 and T thermally fully developed conditions are accounted to evaluate the thermal results. CNTs are considered to be single wall, ( SW)/multi walls, ( MW). Power-law discretized scheme is used to transform the non-linear cross sectional convection-diffusion terms in algebraic form by using the control volume based method. With the help semi-implicit method for pressure-linked equations-revised, ( SIMPLER), a system of discretized algebraic equations is solved. Forced convective flow is carried out for different annular configuration parameters and contribution of CNTs in base fluid (i.e. pure water) at Pr = 6.2. Limiting case friction factor and heat transfer results show good agreement with already published data.

Thermally developing forced convection flow through porous concentric pipes annular duct

2021 ◽  
pp. 095440622110022
Author(s):  
Farhan Ahmed
Keyword(s):  
Flow Region ◽  
Axial Direction ◽  
Darcy Number ◽  
Convection Flow ◽  
Axial Distance ◽  
Cross Sectional ◽  
Developing Flow ◽  
Annular Sector ◽  
Flow Through ◽  
The Cross

This article shows the thermally developing flow through concentric pipes annular sector duct by describing the Darcy Brinkman flow field. The cross sectional convection-diffusion terms are transformed in power law discretized form by integrating over the differential volume, whereas backward difference scheme is used in the axial direction of heat flow. With the help of semi implicit method for pressure linked equations-revised ( SIMPLE-R), we get the solution of the governing problem. The graphs of velocity profiles against R and average Nusselt number against axial distance are plotted for different values of Darcy number and geometrical configuration parameters. It has been pointed out that velocity and thermal entrance length decrease, when we decrease the value of Darcy number. By decreasing the cross section of the concentric pipes annular sector duct in the transverse direction, thermally fully developed flow region develops earlier.

Fluid Flows Through Two-Dimensional Irregular Composite Channels

2000 ◽  
Author(s):  
A. K. Al-Hadhrami ◽  
L. Elliott ◽  
D. B. Ingham ◽  
X. Wen
Keyword(s):  
Porous Media ◽  
Fluid Flow ◽  
Numerical Solutions ◽  
Control Volume ◽  
Brinkman Equation ◽  
Channel Height ◽  
Two Dimensional ◽  
Composite Channels ◽  
Constant Height ◽  
Flow Through

Abstract The present analysis is concerned with the study of two-dimensional fluid flow problems through channels of irregular composite materials. The fluid is assumed to be steady, incompressible, with a negligible gravitational force, and is constrained to flow in an infinite long channel in which the height assumes a series of piecewise constant values. An analytical study in the fully developed section of the composite channel is presented when the channel is of constant height and composed of several layers of porous media, each of uniform porosity. Numerical solutions are utilised using CFD based on the control volume method to solve the Brinkman equation, which governs fluid flow through porous media. In the fully developed flow regime the analytical and numerical solutions are graphically indistinguishable. A geometrical configuration involving several discontinuities of channel height, and where the entry and exit sections are layered, is considered and the effect of different permeabilities is demonstrated. Several numerical investigations which form a first attempt to mathematically model some geological structures, e.g. a fault or a fracture, are performed. Further, flow through fractures composed of randomly generated permeability values are also discussed and the effect on the overall pressure gradient is considered.

scholarly journals The effect of magnetohydrodynamic nano fluid flow through porous cylinder

2017 ◽  
Author(s):  
Basuki Widodo ◽  
Didik Khusnul Arif ◽  
Deviana Aryany ◽  
Nur Asiyah ◽  
Farida Agustini Widjajati ◽  
...  
Keyword(s):  
Fluid Flow ◽  
Porous Cylinder ◽  
Nano Fluid ◽  
Flow Through

scholarly journals More Than One Force of Nature

2002 ◽  
Vol 124 (02) ◽  
pp. 49-51 ◽  
Author(s):  
Jean Thilmany
Keyword(s):  
Finite Element ◽  
Fluid Flow ◽  
Working Conditions ◽  
Real Life ◽  
Algebraic Equations ◽  
Flow Through ◽  
Computational Fluid Flow ◽  
Physical Phenomena ◽  
Near Future ◽  
Nonlinear Geometric

This article reviews how engineers can examine multiple influences in only one simulation by using multiphysics technologies. Engineers simulate the model more realistically rather than see the result of one analysis and then the result of another as an unrelated case. Engineers can simulate, say, the combined electrical and mechanical behavior of an overall system as a part of one virtual prototype. Multiphysics, then, can be looked at as a series of finite element and computational fluid flow analyses (FEA/CFD) layered on top of each other to describe the whole and real-life working conditions of the part. FEA solves simultaneous algebraic equations and lets engineers simulate a wide variety of physical phenomena, including laminar flow, turbulent flow, impact, and nonlinear geometric or material simulations. CFD describes how a fluid will flow through a system. With the development of increasingly easier-to-use multiphysics programs, it is likely that more engineering firms will be turning toward these full-scale analyses packages in the near future.

Investigation of Al2O3-water nano fluid flow through the circular tube

2021 ◽  
Author(s):  
K. Veeramanikandan ◽  
S. Vignesh ◽  
B. Pitchia Krishnan ◽  
M. Mathanbabu ◽  
M. Ashokkumar
Keyword(s):  
Fluid Flow ◽  
Circular Tube ◽  
Nano Fluid ◽  
Flow Through
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