Investigation of hydrodynamic characteristics of laminar flow condition around sphere using PIV system

Abed, Akram H.; Щеклеин, С. Е.

doi:10.1088/1742-6596/1015/3/032001

Cited by 6 publications

(2 citation statements)

References 15 publications

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“…The hydrodynamic characteristics of bluff bodies such as vortex shedding mechanisms and velocity field have also been studied by various researchers [19,20]. The experimental results show that the turbulence intensity accelerates, forming a vortices shedding in the rear of the sphere depending on the flow velocity, and the pressure drop in the terms of friction factor over the sphere decrease downstream.…”

Section: Resultsmentioning

confidence: 99%

Experimental Investigation of Hydro¬dynamics and Heat Transfer Characteristics of Two-Phase Gas/Liquid Mist Flow in Tandem Arranged Heated Spheres

2019

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Objectives and scientific relevance The paper presents a developed air/water mist cooling scheme featuring an ultrasonic mist generator and three copper spheres used as heated surfaces under constant heat flux. The main objective is to clarify the effect of suspending fine water droplets (mist) have on the cooling process and predict the heat transfer rate, friction factor, and thermal performance behaviors for both upstream and downstream heated rows at various water mist rate (j = 23.39-111.68 kg m-2 hr-1) and Re range of 2500 < Re <55 000. Such experiment shall help to understand the forced convection cooling process, considered important in engineering and industrial applications including passive heat removable systems in nuclear power plants, heat exchanger models, electrical and electronic devices and so on.

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Section: Resultsmentioning

confidence: 99%

Experimental Investigation of Hydro¬dynamics and Heat Transfer Characteristics of Two-Phase Gas/Liquid Mist Flow in Tandem Arranged Heated Spheres

2019

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“…Herein, we present an experimental study on an eccentric cylindrical cavity, in which the flow is studied by means of particle image velocimetry (PIV) [25]. This standard technique is often employed for laminar flows [26][27][28], in order to study the transient response [29], or behind an obstacle [30,31]. In this work, fluorescent particles are used both for flow visualization (FV) and PIV at the central plane of a symmetric flow cavity.…”

Section: Introductionmentioning

confidence: 99%

Experimental validation of computational fluid dynamics for solving isothermal and incompressible viscous fluid flow

Abali

Savaş

2020

SN Appl. Sci.

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In order to validate a computational method for solving viscous fluid flows, experiments are carried out in an eccentric cylindrical cavity showing various flow formations over a range of Reynolds numbers. Especially, in numerical solution approaches for isothermal and incompressible flows, we search for simple experimental data for evaluating accuracy as well as performance of the computational method. Verification of different computational methods is arduous, and analytic solutions are only obtained for simple geometries like a channel flow. Clearly, a method is expected to predict different flow patterns within a cavity. Thus, we propose a configuration generating different flow formations depending on the Reynolds number and make the experimental results freely available in order to be used as an assessment criterion to demonstrate the reliability of a new computational approach.

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Enhancement of heat transfer using ultrasonic waves: Experimental investigation and empirical correlations

Abed

Ahmed

Shehab

2023

Case Studies in Thermal Engineering

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Investigation of hydrodynamic characteristics of laminar flow condition around sphere using PIV system

Cited by 6 publications

References 15 publications

Experimental Investigation of Hydro¬dynamics and Heat Transfer Characteristics of Two-Phase Gas/Liquid Mist Flow in Tandem Arranged Heated Spheres

Experimental Investigation of Hydro¬dynamics and Heat Transfer Characteristics of Two-Phase Gas/Liquid Mist Flow in Tandem Arranged Heated Spheres

Experimental validation of computational fluid dynamics for solving isothermal and incompressible viscous fluid flow

Enhancement of heat transfer using ultrasonic waves: Experimental investigation and empirical correlations

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