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Yong, Wen Pin (author), Menke, Hannah (author), Maes, Julien (author), Geiger, S. (author), Bakar, Zainol Affendi Abu (author), Lewis, Helen (author), Buckman, Jim (author), Bonnin, Anne (author), Singh, Kamaljit (author)Microporosity is commonly assumed to be non-connected porosity and not commonly studied in geoengineering industry. However, the presence of micropores plays a key role in connecting macropores and it can contribute significantly to the overall flow performance. In this study, targeted CO<sub>2</sub> storage carbonate fields in Southeast Asia...conference paper 2024
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Jones, S.A. (author), Bos, Robert (author), Lastovka, Vaclav (author), Farajzadeh, R. (author), Riyami, Mohammed (author)The efficiency of oil processes depends on the product of volumetric sweep and microscopic sweep. In oil recovery by steam injection the microscopic sweep is generally good; however, obtaining a good volumetric sweep can be challenging. This is caused by low density and viscosity of the injected steam combined with the reservoir heterogeneity...conference paper 2022
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Çelik, M. (author)Steel is an indispensable material for the sustainable maintenance and progress of modern civilization. Its versatility in terms of mechanical and thermal characteristics, corrosion resistance, raw material availability, energy consumption and recyclability provides a clear advantage in a fast-changing technological landscape. In order to adapt...doctoral thesis 2020
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Haghi, R. (author), Ashuri, T. (author), Van der Valk, P.L.C. (author), Molenaar, D.P. (author)In the current offshore wind turbine support structure design method, the tower and foundation, which form the support structure are designed separately by the turbine and foundation designer. This method yields a suboptimal design and it results in a heavy, overdesigned and expensive support structure. This paper presents an integrated...journal article 2014
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- Campbell, Ian.M.C. (author), Owen, Merfyn (author), Provinciali, Giorgio (author) journal article 2014
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Souverein, L.J. (author)Shock wave boundary layer interactions (SWBLI) are a common phenomenon in transonic and supersonic flows. The presence of shock waves, induced by specific geometrical configurations, causes a rapid increase of the pressure, which can lead to flow separation. Examples of such interactions are found in amongst others rocket engine nozzles and on...doctoral thesis 2010
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- Foeth, E.J. (author) doctoral thesis 2008
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Kenjeres, S. (author), Hanjalic, K. (author)We report on hybrid numerical simulations of a turbulent magnetic dynamo. The simulated set-up mimics the Riga dynamo experiment characterized by Re ? 3.5 × 106 and (Gailitis et al 2000 Phys. Rev. Lett. 84 4365–8). The simulations were performed by a simultaneous fully coupled solution of the transient Reynolds-averaged Navier–Stokes (T-RANS)...journal article 2007
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Duda, P. (author), Cebula, A. (author), Dwornicka, R. (author)High thermal stresses are created during the operation of power block devices such as boiler drums, outlet headers, steam valves, turbines and heat exchangers. Due to a cyclic character of such stresses, a phenomenon of low-cyclic fatigue occurs, which may lead to the formation of fractures. Manufacturers of power block devices frequently advice...conference paper 2006
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Regnström, B. (author)The Theodorsen-Garrick conformal mapping is used to make a grid around a wing section and to compute the potential flow around it. The potential flow is a solution to the incompressible Euler equations and can be used to verify the inviscid part of RANS codes.conference paper 2006
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Diarra, D. (author), Velaga, D. (author), Lucka, K. (author), Köhne, H. (author)In this paper the fluid dynamics of three cool flame vaporizers are investigated numerically, using a commercial CFD-code. The paper focuses on analyzing local and global residence time distributions (RTD). Two approaches have been used to model the RTD: a transient step tracer model (which serves as a reference) and a dispersed phase tracer model.conference paper 2006
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Arina, R. (author), Ceresola, N. (author)A numerical simulation of the turbulent flow field of a transonic cavity and its associated far-field sound radiation, are presented. The test case is based on the experimental case M219 of QinetiQ. Two different turbulent simulations are performed, the first one is a URANS simulation with a k-w-EARSM turbulence model. while a DES turbulence...conference paper 2006
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Hemida, H. (author), Krajnovic, S. (author)Large-eddy simulation (LES) is made to investigate the flow around a generic train under side wind conditions. Two different side-wind yaw angles are used in the investigation: 35 and 90 degrees. The Reynolds numbers based on the height of the train and the freestream velocity are 300,000 and 370,000 for the 90 and 35 degrees yaw angles,...conference paper 2006
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Manservisi, S. (author)Optimal boundary control problems associated with the Navier-Stokes equations coupled with the energy equation have a wide and important range of applications. Velocity, pressure and temperature describe most systems and the control through their boundary conditions is the most common in their optimal design. Despite the fact that this field has...conference paper 2006
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Nishikawa, N. (author), Kaita, K. (author), Ishide, T. (author)Flow field around a projectile after thrust has been stopped and in inertia flight is studied numerically by a finite difference scheme. This study aims at clarifying the mechanism of free flight, which is generated and developed by rotation of body and gravity. Among two types of projectiles concerned a three-dimensional flow around the slender...conference paper 2006
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Mola, A. (author), Formaggia, L. (author), Miglio, E. (author)A tool for the prediction of the performances of olympic rowing boats is presented and discussed. The equations of motion for the dynamical system composed by the boat, oars and oarsmen are obtained by means of suitable models for the rowers motion, oar forces and fluid-structure intercation forces. The proposed algorithm is implemented in a C++...conference paper 2006
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Peter, J. (author), Mayeur, J. (author)This paper describes the recent activities developed at ONERA in the field of aerodynamic shape optimization using gradient based methods. Both discrete direct differentiation method and discrete adjoint method have been considered for the computation of the derivatives of a function with respect to the design parameters. The numerical methods...conference paper 2006
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Borrel, M. (author), Ryan, J. (author), Billet, G. (author)A patch adaptive mesh refinement (AMR) platform is presented. Presently two Navier-Stokes solvers are available within this platform : a MUSCL and DG solver (FLUX AMR) and a multi-species MUSCL solver (MAJIC) for reacting flows. The first solver is based on cell centered approaches of finite volume type, the second solver is based on a cell...conference paper 2006
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Cuenot, B. (author), Boileau, M. (author), Pascaud, S. (author), Mossa, J.B. (author), Riber, E. (author), Poinsot, T. (author), Bérat, C. (author)Large Eddy Simulation (LES) is now recognized as an efficient numerical tool to predict gaseous combustion in industrial burners, and a number of examples of applications can be found in the literature. In these examples, the accuracy and the predictive capacity of LES are clearly demonstrated, even for unsteady phenomena. However most...conference paper 2006
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Stridh, M.L.O. (author), Eriksson, L.E. (author)The linear harmonic approach has been applied for solving problems involving for example blade vibrations or unsteady blade row interaction effects in multistage axial compressors and turbines. The flow is decomposed into a time averaged flow and an unsteady flow perturbation which are governed by the Reynolds Averaged Navier Stokes (RANS) and...conference paper 2006
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