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4 edition of Numerical simulation of turbulent jets with rectangular cross-section found in the catalog.

Numerical simulation of turbulent jets with rectangular cross-section

Numerical simulation of turbulent jets with rectangular cross-section

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Published by National Aeronautics and Space Administration, Langley Research Center, National Technical Information Service, distributor in Hampton, Va, [Springfield, Va .
Written in English


Edition Notes

StatementRobert V. Wilson, Ayodeji O. Demuren.
SeriesICASE report -- no. 97-1., NASA contractor report -- 201642., NASA contractor report -- NASA CR-201642.
ContributionsDemuren, A. O., Langley Research Center.
The Physical Object
FormatMicroform
Pagination1 v.
ID Numbers
Open LibraryOL17593323M
OCLC/WorldCa40173636

Full text of "Studying Turbulence Using Numerical Simulation Databases, 8. Proceedings of the Summer Program" See other formats. ABSTRACT OF DISSERTATION Vedanth Srinivasan The Graduate School University of Kentucky A NUMERICAL STUDY OF A NEW SPRAY APPLICATOR ABSTRACT OF DISSERTATION A dissertation submitted in partial fulfillment of the requirements for the degree of Doctor of Philosophy in the College of Engineering at the University of Kentucky By Vedanth Srinivasan Lexington, Kentucky . THREE-DIMENSIONAL NUMERICAL INVESTIGATION OF TURBULENT FLOW AND HEAT TRANSFER INSIDE A HORIZONTAL SEMI-CIRCULAR CROSS-SECTIONED DUCT. by. Kamil ARSLAN. Technical and Business College, Çankırı Karatekin University, , Ballıca, Çankırı, Turkey. In this study, steady-state turbulent forced flow andheat transfer in aCited by: 4. Dr. Mohamad Taeibi Rahni. Professor. Ph.D. in Aerospace Engineering, and Taeibi-Rahni, M., “Numerical Simulation of Turbulent Internal Flow, Using Finite Element/Volume Method”, ISME, The 12th Annual (8th Int.) Conf. of Iranian Mech. Eng. Soc., Tarbiat Moddaress Univ., Tehran, Iran (In Persian). “Numerical Study of.


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Numerical simulation of turbulent jets with rectangular cross-section Download PDF EPUB FB2

Three-dimensional turbulent jets with rectangular cross-section are simulated with a finite-difference numerical method. The full Navier-Stokes equations are solved at a low Reynolds number, whereas at a higher Reynolds number filtered forms of the equations are solved along with a sub-grid scale model to approximate effects of the unresolved gloryland-church.com by: NUMERICAL SIMULATION OF TURBULENT JETS WITH RECTANGULAR CROSS-SECTION* Robert V.

Wilson and Ayodeji O. Demuren Department of Mechanical Engineering Old Dominion University Norfolk, VirginiaUSA ABSTRACT Three-dimensional turbulent jets with rectangular cross-section are simulated with a finite-dif-ference numerical method. Get this from a library. Numerical simulation of turbulent jets with rectangular cross-section.

[Robert V Wilson; A O Demuren; Langley Research Center.]. Both the equilateral and the isosceles triangular jets [Figs 17(e) and 17(f)] are characterized by a large increase in the product formation in the center of the jet as compared to those in the other jets. Numerical simulation of non-circular jets ____X Fig.

Cited by: Numerical Simulation of Jets in a Crossflow Using Different Turbulence Models Article in AIAA Journal 39(12) · December with 39 Reads How we measure 'reads'.

Computational study of turbulent flow interaction between twin rectangular jets. Author links open Considering the importance of multiple-jet systems, a numerical simulation of two parallel turbulence jets, referred to as twinjets, was conducted.

The closest available option of boundary condition is the CFD solution for a fully Cited by: 4. a cylinder with a rectangular cross-section are strongly dependent on the shape of the cross- section and the Reynolds number were found by experiments*5 Thus in the present paper we have simulated laminar and turbulent flows about different cylinders with a rectangular cross- section of various width-to-height ratios from to 10, which.

Numerical investigation of turbulent free jet flows issuing from rectangular nozzles: The influence of small aspect ratio effect of aspect ratio on mixing in rectangular cross-section jets is.

Numerical Simulation of Turbulent Jets with Rectangular Cross-Section. (pp. San Diego, CA: Proceedings, Symposium on Vortex Flows and Vortex Methods, ASME Fluids Engineering Division Summer Meeting. Abstract.

Turbulent secondary motion of straight open duct flows with a rectangular cross-section was studied by means of direct numerical simulations, and the unique mean flow patterns were analysed with the aid of instantaneous coherent structure analysis for their Reynolds number gloryland-church.com by: 1.

Heat Transfer Enhancement and Turbulent Flow in a Rectangular Channel Using Perforated Ribs With Inclined Holes ribs are used in the experiments with the inclined angle of the holes changing from 0 deg to 45 deg and the cross section are, respectively, circular and square.

Numerical Simulation of Turbulent Convective Heat Transfer in Cited by: 3. Rectangular ducts are widely used in heat transfer devices, for instance, in compact heat exchangers, gas turbine cooling systems, cooling channels in combustion chambers and nuclear reactors. Forced turbulent heat convection in a square or rectangular duct is one of the fundamental problems in the thermal science and fluid gloryland-church.com: G.A.

Rivas, E.C. Garcia, M. Assato. Oct 26,  · Convergence criteria for direct numerical simulations of turbulent channel and duct flows are proposed. The convergence indicator for channels is defined as the deviation of the nondimensional total shear-stress profile with respect to a linear profile, whereas the one for the duct is based on a nondimensional streamwise momentum balance at the duct gloryland-church.com by: Numerical Simulation of a Turbulent Free Jet Issuing From a Rectangular Nozzle,” Comput.

Therm. Diffusion Flames of Gas Jets Issued From Circular and Elliptic Nozzles,” Combust. Sci. On the Deformation of the Rectangular Turbulent Jet Cross-Section,”Cited by: 4. Aug 07,  · Read "Three‐dimensional numerical simulation of an equilateral triangular turbulent free jet, International Journal of Numerical Methods for Heat & Fluid Flow" on DeepDyve, the largest online rental service for scholarly research with thousands of academic publications available at your fingertips.

A new numerical method is presented here that allows to consider chemically reacting gases during the direct numerical simulation of a hypersonic fluid flow.

The method comprises the direct coupling of a solver for the fluid mechanical model and a library providing the physio-chemical model. The. We report results of time‐dependent numerical simulation of spatially developing free square jets initialized with a thin square vortex‐sheet with slightly rounded corner‐regions.

The studies focus on the near field of jets with Mach number – and moderately high Reynolds numbers. A monotonically‐integrated large‐eddy‐simulation approach is used, based on the solution of the Cited by: gloryland-church.com Technical Report: Noncondensing round turbulent gas jets in liquids.

Interim report, 1 August September An experimental and numerical study of the rectangular slot-burners widely used on power stations in Victoria, Australia has been conducted to improve understanding of jet development within the boiler.

Study of trajectories of jets in crossflow using direct numerical simulations This paper uses direct numerical simulation (DNS) to examine possible reasons j over the pipe cross-section. The simulations are performed at two velocity ratios: r= and r=, which.

The Numerical Simulation of Turbulent Flow in Semi-Closed Rotor-Stator Cavity Modeling and Numerical Simulation of Flow Resistance Characteristics in Slowly-Varying Rectangular Cross-Section Microchannel.

ShenWater, Sprays, Air flow, Drops, Flow visualization, Jets, Photography, Turbulence. Symposium on Wind Turbines. A novel three-dimensional (3D) model based on Reynolds turbulence stress model (RSTM) closure of equations of carrier and particulate phases was elaborated for channel turbulent flows.

The essence of the model is the direct calculation of normal and shear components of the Reynolds stresses for the particulate phase similar to the carrier gloryland-church.com: P. Lauk, A. Kartushinsky, M. Hussainov, A. Polonsky, Ü. Rudi, I. Shcheglov, S.

Tisler, K.-E. Seegel. turbulent flow, implemented using LES (large eddy simulation) turbulence model in the complex ANSYS CFX. On the basis of the conservation laws for an analytical assessment of the range of parameters in which there is a solution to the problem, and compared the results of the numerical solution with the available experimental data.

Numerical calculation of a three-dlmenslonal turbulent flow of a Jet in a crossflow using a multiple-time-scale turbulence model is presented. The turbulence in the forward region of the Jet is in a stronger inequilibrium state than that in the wake region of the Jet, while the turbulence level in the wake region is higher than that in the.

Read chapter Numerical Simulation of Wakes in a Weakly Stratified Fluid: This report is part of a series of reports that summarize this regular event. The National Academies Press. doi: / The initial mean disturbance and the rms fluctuations are based on least-squares fits of laboratory measurements of a cross section of.

Topics: Computer simulation, Design, Ducts, Engineering simulation, Flow (Dynamics), Fluids, Pressure, Pressure drop, Pressure measurement, Simulation The Numerical and Experimental Investigation Into Hydraulic Characteristics of a No-Load Running Check. Presents the state of simulation using supercomputers.

This book provides results achieved on systems of the Stuttgart High Performance Computing Center (HLRS) for the year investigation of chemically reacting turbulent jets. Detailed measurements are made for the mean and fluctuating velocity, mean concentration, concentration fluctuation intensity, and turbulent flux.

In order to validate the present data set, the results are compared with the results of a direct numerical simulation. 1 EXPERIMENTAL STUDY OF DEVELOPING TURBULENT FLOW AND HEAT TRANSFER IN RIBBED CONVERGENT / DIVERGENT RECTANGULAR DUCTS by Sivakumar KARTHIKEYAN*a, Natarajan ELUMALAIb, Kulasekharan NARASINGAMURTHIc a Department of Mechanical Engineering, Valliammai Engineering College, Chennai b Institute for Energy Studies, Anna University, Chennai, India c Cited by: 3.

The workshop 'Direct and Large-Eddy Simulation-4' was held at the Uni­ versity ofTwente, JulyDLES4is part of a series ofERCOFfAC workshops that originated at the University of Surrey in Over the years the DLES-series has grown into a major international venue focused on the.

Analysis of heat and fluid flow between parallel plates by inserting triangular cross-section rods in the cross-stream plane Computational study of turbulent flow interaction between twin rectangular jets.

International Journal of Heat and Mass Transfer, Vol. Improved boundary conditions for the direct numerical simulation of Cited by: The theory of turbulent jets (2nd revised and enlarged edition) Authors: Abramovich, G The theory of turbulent jet flows and methods for calculating jets in various apparatus are reviewed in the light of the results of recent theoretical and experimental studies.

is given to jets of a compressible gas with inhomogeneous parameter fields. Solar air heater is a type of heat exchanger which transforms solar radiation into heat energy. The thermal performance of conventional solar air heater has been found to be poor because of the low convective heat transfer coefficient from the absorber plate to the air.

Use of artificial roughness on a surface is an effective technique to enhance the rate of heat transfer. A CFD-based Cited by: Fluid Mechanics and Fluid Power – Contemporary Research Dr.

Arun K Saha (PhD,IIT Kanpur) has experience in experiments and numerical simulation in fluid mechanics and heat transfer. The numerical and experimental work done by him has helped in improving the fundamental understanding of jets and wakes.

Book Title Fluid Mechanics. Numerical simulation to determine the effects of incident wind shear and turbulence level on the flow around a building Numerical study on aeroelastic instability of cylinders with a circular and rectangular cross-section.

Okajima, A. / Kitajima, K Modeling of multisized particle laden turbulent low swirling free jets. Azevedo, J. Jul 14,  · Numerical Simulation of Turbulent Three-Dimensional Flow Problems on Parallel Computing Systems. Numerical methods for the Navier-Stokes equations, () Laminar flow of a reacting gaseous mixture through a vertical duct with catalytic gloryland-church.com by: NUMERICAL SIMULATION OF THE FLOWFIELD AROUND MISSILE WITH LATERAL JET INTERACTION 3 Results and Discussion For lateral force control, the most important parameter is amplification factor Kf.

j no jet f F F F K − − = (12) F is the control force with lateral jet. Fno-jet is the force without injection. And Fj is just the thrust generated by. 1 Oblique Laminar-Turbulent Interfaces in Plane Shear Flows Yohann Duguet1,* and Philipp Schlatter2 1LIMSI-CNRS, UPRF Orsay, France 2Linne´ FLOW Centre, KTH Mechanics, Osquars Backe 18, SE 44 Stockholm, Sweden (Received 31 August ) Localized structures such as turbulent stripes and turbulent spots are typical features of transitional.

rectangular 3-D cylinders p. Numerical simulation of pressure distributions underneath roofing paver systems p. Discussions of wind load p. Numerical study on aeroelastic instability of cylinders with a circular and rectangular cross-section p. Unsteady pressure field around oscillating prism predicted by LES p.

Numerical Simulation of the Insulation Material Transport to a PWR Core Under Loss of Coolant Accident Conditions CFD Analysis of Flowing Characteristics of Turbulent Flow in Rectangular Channels in Ocean Environment. Binghuo Yan, Hanyang Gu, Cooling systems, Neutral beams, Numerical analysis, Cross section (Physics), Design, Flow.

Y Wang, Xiaofeng Liu, C Yao and Y Li,"Debris flow impact forces on piers with different cross section shapes", Journal of Hydraulic Engineering "Numerical Simulation of Rectangular Settling Tank with Scraper Using Dynamic Mesh", Tempe, Arizona "Large Eddy Simulation of Wave-Breaking Induced Turbulent Coherent Strucutre and.

The purpose of this paper is to present numerical solutions for two-dimensional time-dependent flow about rectangles in infinite domains. The numerical method utilizes third-order upwind differencing for convection and a Leith type of temporal differencing.

An attempted use of a lower-order scheme and its inadequacies are also gloryland-church.com by: Turbulent Energy Scale Budget Equation Applied to the Centreline of a Free, Round, Turbulent Jet and the Effect of a Passive Ring H.

Sadeghi 1, A. Pollard 2 and P. Lavoie 1 1Institute for Aerospace Studies, University of Toronto, ON, Canada 2Department of Mechanical and Materials Engineering, Queen’s University, ON, Canada Abstract.Full text of "Studying Turbulence Using Numerical Simulation Databases - X Proceedings of the Summer Program" See other formats.