Journal ArticleDOI
The Numerical Analysis of Oscillating Rectangular Impinging Jets
Tolga Demircan,Hasmet Turkoglu +1 more
TLDR
In this article, the flow and heat transfer characteristics of oscillating air jets impinging on a flat surface were numerically analyzed and the jet velocity oscillated sinusoidally in time.Abstract:
In this study, the flow and heat transfer characteristics of oscillating air jets impinging on a flat surface were numerically analyzed The jet velocity oscillated sinusoidally in time A computer program, based on the control volume method and SIMPLE algorithm, was developed to numerically analyze the problem Numerical simulations were performed to investigate the effects of the Reynolds number, amplitude, and frequency of the jet oscillation on the flow and heat transfer It was observed that when the jet is oscillated, the Nusselt number moderately increases compared to the Nusselt number of steady jetsread more
Citations
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Journal ArticleDOI
Pulsating nanofluids jet impingement cooling of a heated horizontal surface
TL;DR: In this paper, a numerical study of a pulsating rectangular jet with nanofluids is presented, where the effects of various parameters such as pulsating frequency, Reynolds number, nanoparticle volume fraction on the fluid flow and heat transfer characteristics are numerically investigated.
Journal ArticleDOI
Heat transfer enhancement by multiple swirling impinging jets with twisted-tape swirl generators
TL;DR: In this paper, the flow and heat transfer characteristics of multiple swirling impinging jets (M-SIJs) with 3 × 3 in-line arrangement, on impinged surfaces are reported.
Journal ArticleDOI
Heat transfer under composite arrangement of pulsed and steady turbulent submerged multiple jets impinging on a flat surface
Javad Mohammadpour,Mohammad Mehdi Zolfagharian,Arun S. Mujumdar,Arun S. Mujumdar,Mehran Rajabi Zargarabadi,Mohammad Abdulahzadeh +5 more
TL;DR: In this article, a numerical study was conducted to seek an optimized arrangement of steady and pulsating impinging multiple submerged slot jets, and a composite design consisting of steady as well as intermittent (on/off) or sinusoidal jets in different combinations of four slot jets was simulated.
Journal ArticleDOI
Literature Survey of Numerical Heat Transfer (2010-2011)
TL;DR: A comprehensive survey of the literature in the area of numerical heat transfer (NHT) published in 2010 and 2011 has been conducted as mentioned in this paper, which can be used as a starting point for future work.
Journal ArticleDOI
Confined, milliscale unsteady laminar impinging slot jets and surface Nusselt numbers
TL;DR: In this paper, the effects of Reynolds number and nozzle-to-plate distance on the local Nusselt number were investigated for a slot nozzle width B of 1.0mm, Reynolds numbers Re from 120 to 200, and nozzle to-plate distances H / B from 0.75 to 12.5, and a nozzle aspect ratio y / B of 50.
References
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Book
Numerical heat transfer and fluid flow
TL;DR: In this article, the authors focus on heat and mass transfer, fluid flow, chemical reaction, and other related processes that occur in engineering equipment, the natural environment, and living organisms.
Book ChapterDOI
Heat and Mass Transfer between Impinging Gas Jets and Solid Surfaces
TL;DR: In this article, the authors present a comprehensive survey emphasizing the engineering applications and empirical equations, presented for the prediction of heat and mass transfer coefficients within a large and technologically important range of variables.
Journal ArticleDOI
Streamwise distribution of the recovery factor and the local heat transfer coefficient to an impinging circular air jet
TL;DR: In this paper, the radial distribution of the recovery factor and the local heat transfer for an axisymmetric impinging air jet formed by a smooth nozzle was investigated and a correlation was obtained for the average heat transfer from the surface.
Journal ArticleDOI
Heat transfer and flow structures in an excited circular impinging jet
Tianshu Liu,John P. Sullivan +1 more
TL;DR: In this article, the relationship between the vortical structures and local heat transfer was studied by the means of flow visualization, heat transfer spectra and correlation between velocity and heat transfer.
Journal ArticleDOI
A numerical study of the unsteady flow and heat transfer in a transitional confined slot jet impinging on an isothermal surface
Victor A. Chiriac,Alfonso Ortega +1 more
TL;DR: In this article, a numerical finite difference approach was used to compute the steady and unsteady flow and heat transfer due to a confined two-dimensional slot jet impinging on an isothermal plate.
Related Papers (5)
A numerical study of the unsteady flow and heat transfer in a transitional confined slot jet impinging on an isothermal surface
Victor A. Chiriac,Alfonso Ortega +1 more