Relevant bibliographies by topics / Flow over rough surfaces

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'Flow over rough surfaces'

Author: Grafiati
Published: 4 June 2021
Last updated: 1 February 2022

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Journal articles on the topic "Flow over rough surfaces"

1

Balachandar, R., K. Hagel, and D. Blakely. "Velocity distribution in decelerating flow over rough surfaces." Canadian Journal of Civil Engineering 29, no. 2 (2002): 211–21. http://dx.doi.org/10.1139/l01-089.

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An experimental program was undertaken to study turbulent boundary layers formed in decelerating open channel flows. The flows over a smooth surface and three rough surfaces were examined. Tests were conducted at a subcritical Froude number (~0.2) and varying depth Reynolds numbers (64 000 < Red < 88 000). The corresponding momentum thickness Reynolds numbers were small (1000 < Reθ < 2100). The velocity measurements were undertaken using a one-component laser-Doppler anemometer. Variables such as the shear velocity, the longitudinal mean velocity, Coles' wake parameter, and Clauser
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Giménez-Curto, Luis A., and Miguel A. Corniero Lera. "Oscillating turbulent flow over very rough surfaces." Journal of Geophysical Research: Oceans 101, no. C9 (1996): 20745–58. http://dx.doi.org/10.1029/96jc01824.

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Myers, T. G. "Modeling laminar sheet flow over rough surfaces." Water Resources Research 38, no. 11 (2002): 12–1. http://dx.doi.org/10.1029/2000wr000154.

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Han, Yu, Shi-yu Wang, Jian Chen, Shuqing Yang, Liu-chao Qiu, and Nadeesha Dharmasiri. "Resistance of the flow over rough surfaces." Journal of Hydrodynamics 33, no. 3 (2021): 593–601. http://dx.doi.org/10.1007/s42241-021-0039-3.

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Zampogna, Giuseppe A., Jacques Magnaudet, and Alessandro Bottaro. "Generalized slip condition over rough surfaces." Journal of Fluid Mechanics 858 (November 6, 2018): 407–36. http://dx.doi.org/10.1017/jfm.2018.780.

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A macroscopic boundary condition to be used when a fluid flows over a rough surface is derived. It provides the slip velocity $\boldsymbol{u}_{S}$ on an equivalent (smooth) surface in the form $\boldsymbol{u}_{S}=\unicode[STIX]{x1D716}{\mathcal{L}}\boldsymbol{ : }{\mathcal{E}}$, where the dimensionless parameter $\unicode[STIX]{x1D716}$ is a measure of the roughness amplitude, ${\mathcal{E}}$ denotes the strain-rate tensor associated with the outer flow in the vicinity of the surface and ${\mathcal{L}}$ is a third-order slip tensor arising from the microscopic geometry characterizing the rough
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Miksis, Michael J., and Stephen H. Davis. "Slip over rough and coated surfaces." Journal of Fluid Mechanics 273 (August 25, 1994): 125–39. http://dx.doi.org/10.1017/s0022112094001874.

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We study the effect of surface roughness and coatings on fluid flow over a solid surface. In the limit of small-amplitude roughness and thin lubricating films we are able to derive asymptotically an effective slip boundary condition to replace the no-slip condition over the surface. When the film is absent, the result is a Navier slip condition in which the slip coefficient equals the average amplitude of the roughness. When a layer of a second fluid covers the surface and acts as a lubricating film, the slip coefficient contains a term which is proportional to the viscosity ratio of the two f
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Busse, A., M. Thakkar, and N. D. Sandham. "Reynolds-number dependence of the near-wall flow over irregular rough surfaces." Journal of Fluid Mechanics 810 (November 24, 2016): 196–224. http://dx.doi.org/10.1017/jfm.2016.680.

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The Reynolds-number dependence of turbulent channel flow over two irregular rough surfaces, based on scans of a graphite and a grit-blasted surface, is studied by direct numerical simulation. The aim is to characterise the changes in the flow in the immediate vicinity of and within the rough surfaces, an area of the flow where it is difficult to obtain experimental measurements. The average roughness heights and spatial correlation of the roughness features of the two surfaces are similar, but the two surfaces have a significant difference in the skewness of their height distributions, with th
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Nourmohammadi, Khosrow, P. K. Hopke, and J. J. Stukel. "Turbulent Air Flow Over Rough Surfaces: II. Turbulent Flow Parameters." Journal of Fluids Engineering 107, no. 1 (1985): 55–60. http://dx.doi.org/10.1115/1.3242440.

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The objective of the present study was to examine experimentally the turbulent flow structure in a repeated rib geometry rough wall surface as a function of the ratio of the roughness height to the pipe diameter (K/D), the ratio of the spacing between the elements to the roughness height (P/K), the axial position within a rib cycle, and the Reynolds number. For small P/K values, the turbulent intensities and Reynolds shear stress variations were similar to those found for smooth wall pipe flow. Unique relationships for the u′ and v′ were found that were valid in the outer layer of the flow for
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Patel, V. C., and J. Y. Yoon. "Application of Turbulence Models to Separated Flow Over Rough Surfaces." Journal of Fluids Engineering 117, no. 2 (1995): 234–41. http://dx.doi.org/10.1115/1.2817135.

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Principal results of classical experiments on the effects of sandgrain roughness are briefly reviewed, along with various models that have been proposed to account for these effects in numerical solutions of the fluid-flow equations. Two models that resolve the near-wall flow are applied to the flow in a two-dimensional, rough-wall channel. Comparisons with analytical results embodied in the well-known Moody diagram show that the k–ω model of Wilcox performs remarkably well over a wide range of roughness values, while a modified two-layer k–ε based model requires further refinement. The k–ω mo
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Balachandar, R., D. Blakely, and J. Bugg. "Friction velocity and power law velocity profile in smooth and rough shallow open channel flows." Canadian Journal of Civil Engineering 29, no. 2 (2002): 256–66. http://dx.doi.org/10.1139/l01-093.

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This paper examines the mean velocity profiles in shallow, turbulent open channel flows. Velocity measurements were carried out in flows over smooth and rough beds using a laser-Doppler anemometer. One set of profiles, composed of 29 velocity distributions, was obtained in flows over a polished smooth aluminum plate. Three sets of profiles were obtained in flows over rough surfaces. The rough surfaces were formed by two sizes of sand grains and a wire mesh. The flow conditions over the rough surface are in the transitional roughness state. The measurements were obtained along the centerline of
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Dissertations / Theses on the topic "Flow over rough surfaces"

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Andersson, Robin. "Flow Over Large-Scale Naturally Rough Surfaces." Licentiate thesis, Luleå tekniska universitet, Institutionen för teknikvetenskap och matematik, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-136.

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The fluid mechanical field of rough surface flows has been developed ever since the first experiments by Haagen (1854) and Darcy (1857). Although old, the area still holds merit and a surprising amount of information have to this day yet to be fully understood, which surely is a proof of its complexity. Many equations and CFD tools still rely on old, albeit reliable, concepts for simplifying the flow to be able to handle the effects of surface roughness. This notion is, however, likely to change within a not so unforeseeable future. The advancement of computer power has opened the door for mor
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Watt, Robert McFarlane. "Effects of surface roughness on the boundary-layer characteristics of turbine aerofoils." Thesis, University of Oxford, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.330065.

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McClain, Stephen Taylor. "A discrete-element model for turbulent flow over randomly-rough surfaces." Diss., Mississippi State : Mississippi State University, 2002. http://library.msstate.edu/etd/show.asp?etd=etd-04032002-140007.

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Thakkar, Manan. "Investigation of turbulent flow over irregular rough surfaces using direct numerical simulations." Thesis, University of Southampton, 2017. https://eprints.soton.ac.uk/415836/.

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Incompressible turbulent flow in irregular rough channels is investigated using a finite-difference direct numerical simulation code which includes an iterative embedded boundary treatment to resolve the roughness. Seventeen industrially relevant rough surfaces with a wide variation in surface topography are considered. Various studies are conducted to understand the flow physics and the relationship between key flow parameters and surface topography. Studies at low values of friction Reynolds number, Reτ, for a single surface, show that the flow is laminar up to Reτ = 89 and begins to develop
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LIU, WEN. "TRANSPORT PHENOMENA ASSOCIATED WITH LIQUID METAL FLOW OVER TOPOGRAPHICALLY MODIFIED SURFACES." UKnowledge, 2012. http://uknowledge.uky.edu/me_etds/16.

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Brazing and soldering, as advanced manufacturing processes, are of significant importance to industrial applications. It is widely accepted that joining by brazing or soldering is possible if a liquid metal wets the solids to be joined. Wetting, hence spreading and capillary action of liquid metal (often called filler) is of significant importance. Good wetting is required to distribute liquid metal over/between the substrate materials for a successful bonding. Topographically altered surfaces have been used to exploit novel wetting phenomena and associated capillary actions, such as imbibitio
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Grissom, Dustin Leonard. "A Study of Sound Generated by a Turbulent Wall Jet Flow Over Rough Surfaces." Diss., Virginia Tech, 2007. http://hdl.handle.net/10919/28336.

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The far field acoustics generated by turbulent flow over rough surfaces has been experimentally investigated in an acoustically treated wall jet facility. The facility allows direct measurement of the far field sound from small patches of surface roughness, without contamination from edge or other aerodynamic noise sources. The facility is capable of generating turbulent boundary layer flows with momentum thickness Reynolds numbers between 450 and 1160. The variation of surface conditions tested cover the range from hydrodynamically smooth surfaces through most of the transitional range, wi
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Letherman, Sophie Bella. "Turbulence modelling of oscillatory flows over smooth and rough surfaces." Thesis, University of Manchester, 2000. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.488128.

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This study investigates turbulence models for application to boundary layer flows. Firstly, steady channel flow and transient pipe flows are considered. Calculations of a low-Reynolds-number k-epsilon model, a k-epsilon-S model (a strain parameter model which has not been applied to unsteady flows previously) and a Reynolds Stress Transport model are compared with experimental and DNS data. The eddy viscosity turbulence models (k-epsilon, k-epsilon-S) satisfactorily predict the mean flow parameters of steady channel flow. However the k-epsilon-S model proves superior in comparison with turbule
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Smith, Benjamin Scott. "Wall Jet Boundary Layer Flows Over Smooth and Rough Surfaces." Diss., Virginia Tech, 2008. http://hdl.handle.net/10919/27597.

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The aerodynamic flow and fluctuating surface pressure of a plane, turbulent, two-dimensional wall jet flow into still air over smooth and rough surfaces has been investigated in a recently constructed wall jet wind tunnel testing facility. The facility has been shown to produce a wall jet flow with Reynolds numbers based on the momentum thickness, Re<SUB>&delta</SUB> = &deltaU<SUB>m</SUB>/&nu, of between 395 and 1100 and nozzle exit Reynolds numbers, Re<SUB>j</SUB> = U<SUB>m</SUB>b/&nu, of between 16000 and 45000. The wall jet flow properties (&delta, &delta<SUP>*</SUP>, &theta, y<SUB>1</SUB
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Alhinai, Almajd. "An investigation of classifying the flow over rough surfaces into k- and d- type in turbulent channel flow." Thesis, University of Sheffield, 2015. http://etheses.whiterose.ac.uk/11255/.

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This thesis is concerned with the classification of roughness into k- and d- type in turbulent channel flow. Despite the practical importance of this type of flow, the literature review suggest that advancements in the field have been slow due to the difficulty of making accurate measurements close to the wall when using experimental methods. In recent years, numerical modelling has provided a good alternative to studying this type of flow. In this work, an Implicit Large Eddy Simulation (ILES) approach was developed to carry out numerical simulations for turbulent channel flow over rough surf
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Seddighi-Moormani, Mehdi. "Study of turbulence and wall shear stress in unsteady flow over smooth and rough wall surfaces." Thesis, University of Aberdeen, 2011. http://digitool.abdn.ac.uk:80/webclient/DeliveryManager?pid=166096.

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Flows over hydraulically smooth walls are predominant in turbulence studies whereas real surfaces in engineering applications are often rough. This is important because turbulent flows close to the two types of surface can exhibit large differences. Unfortunately, neither experimental studies nor theoretical studies based on conventional computational fluid dynamics (CFD) can give sufficiently accurate, detailed information about unsteady turbulent flow behaviour close to solid surfaces, even for smooth wall cases. In this thesis, therefore, use is made of a state of the art computational meth
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Books on the topic "Flow over rough surfaces"

1

Conrad, Jeffrey G. Propagation of vertically polarized waves over rough ocean surfaces. Naval Postgraduate School, 1997.

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Merrill, Craig F. Spray generation for liquid wall jets over smooth and rough surfaces. Naval Postgraduate School, 1998.

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3

Craig, Ken. Computational study of the aerodynamics and control by blowing of asymmetric vortical flows over Delta wings. Stanford University, Dept. of Aeronautics and Astronautics, 1991.

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Craig, Ken. Computational study of the aerodynamics and control by blowing of asymmetric vortical flows over Delta wings. Stanford University, Dept. of Aeronautics and Astronautics, 1991.

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Tantirige, Sunil Chithranjan *. A flow visualization investigation of the turbulent boundary layer over regularly rough surfaces. 1989.

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Boundary Layer Flow over Elastic Surfaces. Elsevier, 2012. http://dx.doi.org/10.1016/c2011-0-06221-x.

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Zhao, Wancheng. High schmidt number mass transfer at rough surfaces in pipe flow. 1995.

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Spray Generation from Liquid Wall Jets Over Smooth and Rough Surfaces. Storming Media, 1998.

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Boundary Layer Flow Over Elastic Surfaces And Combined Method Of Drag Reduction. Butterworth-Heinemann, 2012.

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Escudier, Marcel. Oblique shockwaves and expansion fans. Oxford University Press, 2018. http://dx.doi.org/10.1093/oso/9780198719878.003.0012.

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External supersonic gas flow in which changes in the fluid and flow properties are brought about by direction change is analysed in this chapter. In addition, it is shown that flow over a corner between two flat surfaces resulted in an oblique shockwave if the angle between the two surfaces is less than 180° (a concave corner). The analysis of flow through an oblique shockwave is based upon the superposition of the flowfield for a normal shock onto a uniform flow parallel to the shock. It is also shown that both weak and strong oblique shocks can occur. For an angle in excess of 180° (a convex
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Book chapters on the topic "Flow over rough surfaces"

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Amir, M., and I. P. Castro. "Mean Flow and Turbulence over Rough Surfaces." In Springer Proceedings in Physics. Springer Berlin Heidelberg, 2009. http://dx.doi.org/10.1007/978-3-642-03085-7_161.

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Blake, William K., and Jason M. Anderson. "The Acoustics of Flow over Rough Elastic Surfaces." In Flinovia - Flow Induced Noise and Vibration Issues and Aspects. Springer International Publishing, 2014. http://dx.doi.org/10.1007/978-3-319-09713-8_1.

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Aupoix, B. "Modelling of Boundary Layer Flows Over Rough Surfaces." In Fluid Mechanics and Its Applications. Springer Netherlands, 1995. http://dx.doi.org/10.1007/978-94-011-0457-9_4.

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Thakkar, M., A. Busse, and N. D. Sandham. "Turbulent Fluid Flow over Aerodynamically Rough Surfaces Using Direct Numerical Simulations." In Direct and Large-Eddy Simulation X. Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-63212-4_35.

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McLelland, Stuart J. "Coherent Secondary Flows Over a Water-Worked Rough Bed in a Straight Channel." In Coherent Flow Structures at Earth's Surface. John Wiley & Sons, Ltd, 2013. http://dx.doi.org/10.1002/9781118527221.ch18.

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Rodrigues, Abel, Raul Albuquerque Sardinha, and Gabriel Pita. "Flow Over Modified Surfaces." In Fundamental Principles of Environmental Physics. Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-69025-0_5.

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Ginevsky, A. S., and A. I. Zhelannikov. "Wind Flow Over Rough Terrain." In Foundations of Engineering Mechanics. Springer Berlin Heidelberg, 2009. http://dx.doi.org/10.1007/978-3-642-01760-5_6.

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Castro, Ian P. "Turbulent flow over rough walls." In Springer Proceedings in Physics. Springer Berlin Heidelberg, 2009. http://dx.doi.org/10.1007/978-3-642-03085-7_92.

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Erickson, David. "Electroosmotic Flow over Heterogeneous Surfaces." In Encyclopedia of Microfluidics and Nanofluidics. Springer New York, 2015. http://dx.doi.org/10.1007/978-1-4614-5491-5_448.

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Erickson, David. "Electroosmotic Flow over Heterogeneous Surfaces." In Encyclopedia of Microfluidics and Nanofluidics. Springer US, 2014. http://dx.doi.org/10.1007/978-3-642-27758-0_448-2.

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Conference papers on the topic "Flow over rough surfaces"

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Anderson, Jason M., Devin O. Stewart, and William K. Blake. "Experimental Investigations of Sound From Flow Over Rough Surfaces." In ASME 2009 International Mechanical Engineering Congress and Exposition. ASMEDC, 2009. http://dx.doi.org/10.1115/imece2009-11445.

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Turbulent boundary layer flows over rough surfaces are known to produce elevated far-field acoustic sound levels. The nature by which surface irregularities alter the near-field surface pressures and subsequently affect the sound generation to the scattering of high wavenumber convective pressures to low wavenumber acoustic pressures, which is typically interpreted as a dipole-like source. The focus of the current investigation is the experimental interrogation of both near- and far-field pressures due to the flow over roughened surfaces in order to identify the source mechanisms and to valida
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Fan, H., and R. Bowersox. "Numerical analysis of high-speed flow over rough surfaces." In 35th Joint Propulsion Conference and Exhibit. American Institute of Aeronautics and Astronautics, 1999. http://dx.doi.org/10.2514/6.1999-2381.

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Peters, Wayne D., James E. S. Venart, and Charles R. Dutcher. "GRAVITY CURRENT FLOWS OVER ROUGH SURFACES." In International Heat Transfer Conference 10. Begellhouse, 1994. http://dx.doi.org/10.1615/ihtc10.3130.

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Chochua, Gocha, and Wei Shyy. "Computational Modeling of Turbulent Flows Over Rough Surfaces." In ASME 2003 International Mechanical Engineering Congress and Exposition. ASMEDC, 2003. http://dx.doi.org/10.1115/imece2003-41063.

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Turbulent flows over rough surfaces are often encountered in nature and engineering practices and are often difficult to analyze. In this study, combined modeling and computational techniques is involved to investigate such flows over a surface covered with a large-scale roughness pattern. A simplified empirical engineering model is validated by taking area average of the flow field data over the surface. The approach can interpret fluid physics based on the empirical correlation. The area-averaged mean momentum transport resulting from the wall-normal time-averaged velocity component is found
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Adane, Kofi, Mark Tachie, Martin Agelinchaab, and Mohammad Shah. "Low Reynolds Number Turbulent Flow Over Smooth and Transitionally Rough Surfaces." In 39th AIAA Fluid Dynamics Conference. American Institute of Aeronautics and Astronautics, 2009. http://dx.doi.org/10.2514/6.2009-3565.

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Wray, Timothy, and Ramesh K. Agarwal. "Extension of Wray-Agarwal Turbulence Model for Flow Over Rough Surfaces." In 45th AIAA Fluid Dynamics Conference. American Institute of Aeronautics and Astronautics, 2015. http://dx.doi.org/10.2514/6.2015-2785.

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Anderson, Jason, Devin Stewart, Michael Goody, and Paul Zoccola. "Sound From Flow Over a Rough Surface." In ASME 2007 International Mechanical Engineering Congress and Exposition. ASMEDC, 2007. http://dx.doi.org/10.1115/imece2007-41847.

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The mechanism for sound production from flow over a rough surface is not well understood. Measurements of radiated noise and low-wavenumber unsteady surface pressures were carried out in order to better understand the sound production mechanism. The initial results of an ongoing experimental investigation of the sound produced by flow over a rough surface are presented. In order to investigate scaling relationships, the flow speed, roughness height, and roughness element distribution were varied. Previous investigations have reported roughness noise levels that scale on flow velocity, roughnes
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Cherubini, S., M. D. de Tullio, P. De Palma, and G. Pascazio. "Optimal Perturbations in Boundary Layer Flows Over Rough Surfaces." In ASME 2012 Fluids Engineering Division Summer Meeting collocated with the ASME 2012 Heat Transfer Summer Conference and the ASME 2012 10th International Conference on Nanochannels, Microchannels, and Minichannels. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/fedsm2012-72219.

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This work provides a three-dimensional energy optimization analysis, looking for perturbations inducing the largest energy growth at a finite time in a boundary-layer flow in the presence of roughness elements. Amplification mechanisms are described which by-pass the asymptotical growth of Tollmien–Schlichting waves. The immersed boundary technique has been coupled with a Lagrangian optimization in a three-dimensional framework. Two types of roughness elements have been studied, characterized by a different height. The results show that even very small roughness elements, inducing only a weak
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FLEMING, KENTON, and ROBERT TAYLOR. "Incompressible Navier-Stokes algorithm for flow and heat transfer over rough surfaces." In 27th Thermophysics Conference. American Institute of Aeronautics and Astronautics, 1992. http://dx.doi.org/10.2514/6.1992-2925.

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Mikulich, V., and C. Brücker. "Flow and motion behavior of particle suspensions in shear flow over a rough surface." In MULTIPHASE FLOW 2013. WIT Press, 2013. http://dx.doi.org/10.2495/mpf130221.

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Reports on the topic "Flow over rough surfaces"

1

Gregg, Michael C., and Parker MacCready. Stratified Flow over Rough, Sloping Topography. Defense Technical Information Center, 1999. http://dx.doi.org/10.21236/ada629721.

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MacCready, Parker. Drag Mechanisms in Flow Over Rough Topography. Defense Technical Information Center, 2001. http://dx.doi.org/10.21236/ada624680.

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Janaswamy, Ramakrishna. Development of Analytical Techniques for Wave Propagation Over Large Rough Surfaces. Defense Technical Information Center, 2006. http://dx.doi.org/10.21236/ada612184.

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Rydalch, Andrew J. Turbulent Boundary Layer Flow over Superhydrophobic Surfaces. Defense Technical Information Center, 2013. http://dx.doi.org/10.21236/ada581869.

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