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Large Eddy Simulation Of Supersonic Inlet Flows
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Book Synopsis Large Eddy Simulation of Supersonic Inlet Flows by :
Download or read book Large Eddy Simulation of Supersonic Inlet Flows written by and published by . This book was released on 1998 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The interaction of a shock wave with a turbulent boundary layer is a central problem in supersonic inlet flows. This work uses numerical and analytical techniques to study shock/turbulence interaction in order to identify and explain factors important in shock/boundary layer interaction. Direct numerical simulation of a normal shock wave with an isotropic turbulent field of vorticity and entropy fluctuations showed that negative upstream correlation between the vorticity and entropy fluctuations enhances the turbulence across the shock. Positive upstream correlation has a suppressing effect. A new numerical method providing excellent high wavenumber resolution while reducing the computational cost was developed. A model with no adjustable constants was developed to study the vortex breakdown resulting from the interaction of canard or forbody vortices with the shock waves in a supersonic inlet flow. Very good agreement with both experiment and computation was obtained. A numerical method to compute shock/turbulence interaction using a conservative form of the Large Eddy Simulation (LES) equations has been developed and validated. LES of the interaction of isotropic turbulence with a normal shock was performed and comparisons with direct numerical simulation (DNS) results were favorable. A new Fortran 90 code has been developed for the computation of shock/turbulence interaction. The code is an improved version of codes used previously in shock/turbulence interaction simulations.
Book Synopsis Large-eddy Simulation of Supersonic Cavity Flowfields Including Flow Control by : D. P. Rizzetta
Download or read book Large-eddy Simulation of Supersonic Cavity Flowfields Including Flow Control written by D. P. Rizzetta and published by . This book was released on 2002 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Large Eddy Simulation of Supersonic Base Flow by : C. Fureby
Download or read book Large Eddy Simulation of Supersonic Base Flow written by C. Fureby and published by . This book was released on 1999 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Large-eddy Simulation of Supersonic Compression-ramp Flows by : Donald P. Rizzetta
Download or read book Large-eddy Simulation of Supersonic Compression-ramp Flows written by Donald P. Rizzetta and published by . This book was released on 2001 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Monotone Integrated Large Eddy Simulation of Supersonic Boundary Layer Flows by : Y. H. Chong
Download or read book Monotone Integrated Large Eddy Simulation of Supersonic Boundary Layer Flows written by Y. H. Chong and published by . This book was released on 2001 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Large Eddy Simulation for Incompressible Flows by : P. Sagaut
Download or read book Large Eddy Simulation for Incompressible Flows written by P. Sagaut and published by Springer Science & Business Media. This book was released on 2006 with total page 600 pages. Available in PDF, EPUB and Kindle. Book excerpt: First concise textbook on Large-Eddy Simulation, a very important method in scientific computing and engineering From the foreword to the third edition written by Charles Meneveau: "... this meticulously assembled and significantly enlarged description of the many aspects of LES will be a most welcome addition to the bookshelves of scientists and engineers in fluid mechanics, LES practitioners, and students of turbulence in general."
Book Synopsis Large Eddy Simulation of Flow Transition in a Supersonic Flat-plate Boundary Layer by : H. Shan
Download or read book Large Eddy Simulation of Flow Transition in a Supersonic Flat-plate Boundary Layer written by H. Shan and published by . This book was released on 1999 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Large-eddy Simulations of Scramjet Engines by : Heeseok Koo
Download or read book Large-eddy Simulations of Scramjet Engines written by Heeseok Koo and published by . This book was released on 2011 with total page 398 pages. Available in PDF, EPUB and Kindle. Book excerpt: The main objective of this dissertation is to develop large-eddy simulation (LES) based computational tools for supersonic inlet and combustor design. In the recent past, LES methodology has emerged as a viable tool for modeling turbulent combustion. LES computes the large scale mixing process accurately, thereby providing a better starting point for small-scale models that describe the combustion process. In fact, combustion models developed in the context of Reynolds-averaged Navier Stokes (RANS) equations exhibit better predictive capability when used in the LES framework. The development of a predictive computational tool based on LES will provide a significant boost to the design of scramjet engines. Although LES has been used widely in the simulation of subsonic turbulent flows, its application to high-speed flows has been hampered by a variety of modeling and numerical issues. In this work, we develop a comprehensive LES methodology for supersonic flows, focusing on the simulation of scramjet engine components. This work is divided into three sections. First, a robust compressible flow solver for a generalized high-speed flow configuration is developed. By using carefully designed numerical schemes, dissipative errors associated with discretization methods for high-speed flows are minimized. Multiblock and immersed boundary method are used to handle scramjet-specific geometries. Second, a new combustion model for compressible reactive flows is developed. Subsonic combustion models are not directly applicable in high-speed flows due to the coupling between the energy and velocity fields. Here, a probability density function (PDF) approach is developed for high-speed combustion. This method requires solution to a high dimensional PDF transport equation, which is achieved through a novel direct quadrature method of moments (DQMOM). The combustion model is validated using experiments on supersonic reacting flows. Finally, the LES methodology is used to study the inlet-isolator component of a dual-mode scramjet. The isolator is a critical component that maintains the compression shock structures required for stable combustor operation in ramjet mode. We simulate unsteady dynamics inside an experimental isolator, including the propagation of an unstart event that leads to loss of compression. Using a suite of simulations, the sensitivity of the results to LES models and numerical implementation is studied.
Book Synopsis Large Eddy Simulation of Supersonic Turbulent Flow in Expansion-Compression Corner by : Doyle Knight
Download or read book Large Eddy Simulation of Supersonic Turbulent Flow in Expansion-Compression Corner written by Doyle Knight and published by . This book was released on 2001 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt: A Large Eddy Simulation (LES) methodology has been developed for supersonic turbulent flows with strong shock boundary layer interaction. Results are presented for an expansion-compression corner at Mach 3 and compared with experimental data.
Book Synopsis Large Eddy Simulation of Three-Dimensional High Speed Aerodynamics Flows by :
Download or read book Large Eddy Simulation of Three-Dimensional High Speed Aerodynamics Flows written by and published by . This book was released on 2000 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The focus of the grant was the use of Application Visualization System (AVS), developed by Advanced Visual Systems, Inc., for animating supersonic turbulent flows computed using Large Eddy Simulation (LES) . Three flow configurations are visualized: a turbulent flat plate supersonic boundary layer, an 8 deg supersonic compression corner and a 25 deg supersonic compression corner. The animations display the quantitative and qualitative features of the turbulence production and the complex physics of the shock wave turbulent boundary layer interaction.
Book Synopsis Montone Integated Large Eddy Simulation of Supersonic Boundary Layer Flows by : Y. H. Chong
Download or read book Montone Integated Large Eddy Simulation of Supersonic Boundary Layer Flows written by Y. H. Chong and published by . This book was released on 2001 with total page 170 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Monotone Integrated Large Eddy Simulation of Supersonic Boundary Layer Flows by : Y.H Chong
Download or read book Monotone Integrated Large Eddy Simulation of Supersonic Boundary Layer Flows written by Y.H Chong and published by . This book was released on 2001 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Direct and Large Eddy Simulation of Supersonic Turbulent Flow in Pipes, Nozzles and Diffusers by : Somnath Ghosh
Download or read book Direct and Large Eddy Simulation of Supersonic Turbulent Flow in Pipes, Nozzles and Diffusers written by Somnath Ghosh and published by . This book was released on 2008 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Direct Numerical and Large-eddy Simulation of Supersonic Flows by a High-order Method by : Donald P. Rizzetta
Download or read book Direct Numerical and Large-eddy Simulation of Supersonic Flows by a High-order Method written by Donald P. Rizzetta and published by . This book was released on 2000 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Large Eddy Simulations of Supersonic Cavity Flow by : E. Lillberg
Download or read book Large Eddy Simulations of Supersonic Cavity Flow written by E. Lillberg and published by . This book was released on 2000 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Large Eddy Simulations of Supersonic Impinging Jet Flow Fields by : N. Sinha
Download or read book Large Eddy Simulations of Supersonic Impinging Jet Flow Fields written by N. Sinha and published by . This book was released on 2002 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Numerical Simulation of Supersonic Compression Corners and Hypersonic Inlet Flows Using the RPLUS2D Code by : Kamlesh Kapoor
Download or read book Numerical Simulation of Supersonic Compression Corners and Hypersonic Inlet Flows Using the RPLUS2D Code written by Kamlesh Kapoor and published by . This book was released on 1994 with total page 18 pages. Available in PDF, EPUB and Kindle. Book excerpt:
