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Derek B. Ingham

Bio: Derek B. Ingham is an academic researcher from University of Sheffield. The author has contributed to research in topics: Natural convection & Boundary element method. The author has an hindex of 57, co-authored 664 publications receiving 15518 citations. Previous affiliations of Derek B. Ingham include University of Leeds & University of Nottingham.


Papers
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Book
07 Sep 1998
TL;DR: In this paper, the authors present a reference record created on 2004-09-07, modified on 2016-08-08, and used for the purpose of a reference document.
Abstract: Keywords: transport: : : ; matieres: poreuses: : : ; chaleur: transfert de: : : ; masse: transfert de: : : Reference Record created on 2004-09-07, modified on 2016-08-08

1,228 citations

Book
23 Feb 2001
TL;DR: Free and mixed convection boundary-layer flow on non-Newtonian fluids in porous media has been studied in this article for convective flow in buoyant plumes and jets.
Abstract: Chapter Headings. I Convective flows: viscous fluids. Free convection boundary-layer over a vertical flat plate. Mixed convection boundary-layer flow along a vertical flat plate. Free and mixed convection boundary-layer flow past inclined and horizontal plates. Double-diffusive convection. Convective flow in buoyant plumes and jets. Conjugate heat transfer over vertical and horizontal flat plates. Free and mixed convection from cylinders. Free and mixed convection boundary-layer flow over moving surfaces. Unsteady free and mixed convection. II Convective flows: porous media. Free and mixed convection boundary-layer flow on non-Newtonian fluids. Free and mixed convection boundary-layer flow over vertical surfaces in porous media. Free and mixed convection past horizontal and inclined surfaces in porous media. Conjugate free and mixed convection over vertical surfaces in porous media. Free and mixed convection from cylinders and spheres in porous media. Unsteady free and mixed convection in porous media. Non-Darcy free and mixed convection boundary-layer flow in porous media.

664 citations

Journal ArticleDOI
TL;DR: In this paper, the steady boundary-layer flow near the stagnation point on an impermeable vertical surface with slip that is embedded in a fluid-saturated porous medium is investigated.
Abstract: The steady boundary-layer flow near the stagnation point on an impermeable vertical surface with slip that is embedded in a fluid-saturated porous medium is investigated. Using appropriate similarity variables, the governing system of partial differential equations is transformed into a system of ordinary differential equations. This system is then solved numerically. The features of the flow and the heat transfer characteristics for different values of the governing parameters, namely, the Darcy–Brinkman, Γ, mixed convection, λ, and slip, γ, parameters, are analysed and discussed in detail for the cases of assisting and opposing flows. It is found that dual solutions exist for assisting flows, as well as those usually reported in the literature for opposing flows. A stability analysis of the steady flow solutions encountered for different values of the mixed convection parameter λ is performed using a linear temporal stability analysis. This analysis reveals that for γ = 0 (slip absent) and Γ = 1 the lower solution branch is unstable while the upper solution branch is stable.

507 citations

Journal ArticleDOI
TL;DR: In this paper, a 2D computational investigation on the dynamic stall phenomenon associated with unsteady oscillations around the NACA0012 airfoil at low Reynolds number is presented, where two sets of oscillating patterns with different frequencies, mean oscillating angles and amplitudes are numerically simulated using Computational Fluid Dynamics.

319 citations

Journal ArticleDOI
TL;DR: The problem of determining the development with time of the flow of a viscous incompressible fluid outside a rotating sphere is considered in this paper, where the authors use series truncation to reduce the number of independent variables by one and then solve numerically a finite set of partial differential equations in one space variable and the time.
Abstract: The problem of determining the development with time of the flow of a viscous incompressible fluid outside a rotating sphere is considered The sphere is started impulsively from rest to rotate with constant angular velocity about a diameter The motion is governed by a coupled set of three nonlinear time‐dependent partial differential equations which are solved by first employing the semi‐analytical method of series truncation to reduce the number of independent variables by one and then solving numerically a finite set of partial differential equations in one space variable and the time The calculations have been carried out on the assumption that the Reynolds number is very large The physical properties of the flow are calculated as functions of the time and compared with existing solutions for large and small times A radial jet is found to develop with time near the equator of the sphere as a consequence of the collision of the boundary layers

311 citations


Cited by
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[...]

08 Dec 2001-BMJ
TL;DR: There is, I think, something ethereal about i —the square root of minus one, which seems an odd beast at that time—an intruder hovering on the edge of reality.
Abstract: There is, I think, something ethereal about i —the square root of minus one. I remember first hearing about it at school. It seemed an odd beast at that time—an intruder hovering on the edge of reality. Usually familiarity dulls this sense of the bizarre, but in the case of i it was the reverse: over the years the sense of its surreal nature intensified. It seemed that it was impossible to write mathematics that described the real world in …

33,785 citations

01 Jan 2007

1,932 citations

Book ChapterDOI
30 Dec 2011
TL;DR: This table lists the most common surnames in the United States used to be Anglicised as "United States", then changed to "United Kingdom" in the 1990s.
Abstract: OUTPU T 29 OUTPU T 30 OUTPU T 31 OUTPU T 32 OUTPU T 25 OUTPU T 26 OUTPU T 27 OUTPU T 28 OUTPU T 21 OUTPU T 22 OUTPU T 23 OUTPU T 24 OUTPU T 17 OUTPU T 18 OUTPU T 19 OUTPU T 20 OUTPU T 13 OUTPU T 14 OUTPU T 15 OUTPU T 16 OUTPU T 9 OUTPU T 10 OUTPU T 11 OUTPU T 12 OUTPU T 5 OUTPU T 6 OUTPU T 7 OUTPU T 8 OUTPU T 1 OUTPU T 2 OUTPU T 3 OUTPU T 4 29 30 31 32 25 26 27 28 21 22 23 24 17 18 19 20 13 14 15 16 9

1,662 citations