A High-lift Building Block Flow

A High-lift Building Block Flow

Author: National Aeronautics and Space Administration (NASA)

Publisher: Createspace Independent Publishing Platform

Published: 2018-08-27

Total Pages: 36

ISBN-13: 9781726151153

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Experimental evidence exists which suggests turbulent boundary layer relaminarization may play an important role in the inverse Reynolds number effect in high-lift systems. An experimental investigation of turbulent boundary layer relaminarization has been undertaken at the University of Notre Dame's Hessert Center for Aerospace Research in cooperation with NASA Dryden Flight Research Center. A wind tunnel facility has been constructed at the Hessert Center and relaminarization achieved. Preliminary evidence suggests the current predictive tools available are inadequate at determining the onset of relaminarization. In addition, an in-flight relaminarization experiment for the NASA Dryden FTF-II has been designed to explore relaminarization at Mach and Reynolds numbers more typical of commercial high-lift systems.Bourassa, Corey and Thomas, Flint O. and Nelson, Robert C.Armstrong Flight Research CenterMACH NUMBER; REYNOLDS NUMBER; TURBULENT BOUNDARY LAYER; WIND TUNNELS; PREDICTIONS; EXPERIMENTATION...


New Results in Numerical and Experimental Fluid Mechanics VI

New Results in Numerical and Experimental Fluid Mechanics VI

Author: Cameron Tropea

Publisher: Springer Science & Business Media

Published: 2007-10-26

Total Pages: 973

ISBN-13: 3540744584

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This volume features the contributions to the 15th Symposium of the STAB (German Aerospace Aerodynamics Association). Papers provide a broad overview of ongoing work in Germany, including high aspect ratio wings, low aspect ratio wings, bluff bodies, laminar flow control and transition, active flow control, hypersonic flows, aeroelasticity, aeroacoustics, mathematical fundamentals, numerical simulations, physical fundamentals, and facilities.


Key Topics for High-Lift Research

Key Topics for High-Lift Research

Author: National Aeronautics and Space Administration (NASA)

Publisher: Createspace Independent Publishing Platform

Published: 2018-07-05

Total Pages: 30

ISBN-13: 9781722329372

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Future high-lift systems must achieve improved aerodynamic performance with simpler designs that involve fewer elements and reduced maintenance costs. To expeditiously achieve this, reliable CFD design tools are required. The development of useful CFD-based design tools for high lift systems requires increased attention to unresolved flow physics issues. The complex flow field over any multi-element airfoil may be broken down into certain generic component flows which are termed high-lift building block flows. In this report a broad spectrum of key flow field physics issues relevant to the design of improved high lift systems are considered. It is demonstrated that in-flight experiments utilizing the NASA Dryden Flight Test Fixture (which is essentially an instrumented ventral fin) carried on an F-15B support aircraft can provide a novel and cost effective method by which both Reynolds and Mach number effects associated with specific high lift building block flows can be investigated. These in-flight high lift building block flow experiments are most effective when performed in conjunction with coordinated ground based wind tunnel experiments in low speed facilities. For illustrative purposes three specific examples of in-flight high lift building block flow experiments capable of yielding a high payoff are described. The report concludes with a description of a joint wind tunnel/flight test approach to high lift aerodynamics research. Fisher, David and Thomas, Flint O. and Nelson, Robert C. Armstrong Flight Research Center NCC2-5128...


Aerospace Engineering Education During the First Century of Flight

Aerospace Engineering Education During the First Century of Flight

Author: Barnes Warnock McCormick

Publisher: AIAA

Published: 2004

Total Pages: 938

ISBN-13: 9781563477102

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On 17 December 1903 at Kitty Hawk, NC, the Wright brothers succeeded in achieving controlled flight in a heavier-than-air machine. This feat was accomplished by them only after meticulous experiments and a study of the work of others before them like Sir George Cayley, Otto Lilienthal, and Samuel Langley. The first evidence of the academic community becoming interested in human flight is found in 1883 when Professor J. J. Montgomery of Santa Clara College conducted a series of glider tests. Seven years later, in 1890, Octave Chanute presented a number of lectures to students of Sibley College, Cornell University entitled Aerial Navigation. This book is a collection of papers solicited from U. S. universities or institutions with a history of programs in Aerospace/Aeronautical engineering. There are 69 institutions covered in the 71 chapters. This collection of papers represents an authoritative story of the development of educational programs in the nation that were devoted to human flight. Most of these programs are still in existence but there are a few papers covering the history of programs that are no longer in operation. documented in Part I as well as the rapid expansion of educational programs relating to aeronautical engineering that took place in the 1940s. Part II is devoted to the four schools that were pioneers in establishing formal programs. Part III describes the activities of the Guggenheim Foundation that spurred much of the development of programs in aeronautical engineering. Part IV covers the 48 colleges and universities that were formally established in the mid-1930s to the present. The military institutions are grouped together in the Part V; and Part VI presents the histories of those programs that evolved from proprietary institutions.


Numerical Simulation of the Aerodynamics of High-Lift Configurations

Numerical Simulation of the Aerodynamics of High-Lift Configurations

Author: Omar Darío López Mejia

Publisher: Springer

Published: 2018-04-10

Total Pages: 118

ISBN-13: 331962136X

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This book deals with numerical simulations and computations of the turbulent flow around high-lift configurations commonly used in aircraft. It is devoted to the Computational Fluids Dynamics (CFD) method using full Navier-Stokes solvers typically used in the simulation of high-lift configuration. With the increase of computational resources in the aeronautical industry, the computation of complex flows such as the aerodynamics of high-lift configurations has become an active field not only in academic but also in industrial environments. The scope of the book includes applications and topics of interest related to the simulation of high-lift configurations such as: lift and drag prediction, unsteady aerodynamics, low Reynolds effects, high performance computing, turbulence modelling, flow feature visualization, among others. This book gives a description of the state-of-the-art of computational models for simulation of high-lift configurations. It also shows and discusses numerical results and validation of these computational models. Finally, this book is a good reference for graduate students and researchers interested in the field of simulation of high-lift configurations.


Fundamentals of High Lift for Future Civil Aircraft

Fundamentals of High Lift for Future Civil Aircraft

Author: Rolf Radespiel

Publisher: Springer Nature

Published: 2020-10-17

Total Pages: 634

ISBN-13: 3030524299

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This book reports on the latest numerical and experimental findings in the field of high-lift technologies. It covers interdisciplinary research subjects relating to scientific computing, aerodynamics, aeroacoustics, material sciences, aircraft structures, and flight mechanics. The respective chapters are based on papers presented at the Final Symposium of the Collaborative Research Center (CRC) 880, which was held on December 17-18, 2019 in Braunschweig, Germany. The conference and the research presented here were partly supported by the CRC 880 on “Fundamentals of High Lift for Future Civil Aircraft,” funded by the DFG (German Research Foundation). The papers offer timely insights into high-lift technologies for short take-off and landing aircraft, with a special focus on aeroacoustics, efficient high-lift, flight dynamics, and aircraft design.


Fifty Years of Flight Research

Fifty Years of Flight Research

Author: David F. Fisher

Publisher:

Published: 1999

Total Pages: 526

ISBN-13:

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A bibliography of Technical Reports from Dryden Research Center, 1946-1996. Dryden was a National Advisory Committee for Aeronautics (NACA) facility from to 1946-1958, when NACA became NASA (National Aeronautics and Space Administration). This bibliography encompasses both NACA and NASA publications. Illustrated with diagrams and photos. Black and white version.


How to Build Max-Performance Chevy Small Blocks on a Budjet

How to Build Max-Performance Chevy Small Blocks on a Budjet

Author: David Vizard

Publisher: CarTech Inc

Published: 2009

Total Pages: 162

ISBN-13: 1932494847

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Renowned engine builder and technical writer David Vizard turns his attention to extracting serious horsepower from small-block Chevy engines while doing it on a budget. Included are details of the desirable factory part numbers, easy do-it-yourself cylinder head modifications, inexpensive but effective aftermarket parts, the best blocks, rotating assembly (cranks, rods, and pistons), camshaft selection, lubrication, induction, ignition, exhaust systems, and more.


Rotary-Wing Aerodynamics

Rotary-Wing Aerodynamics

Author: W. Z. Stepniewski

Publisher: Courier Corporation

Published: 2013-04-22

Total Pages: 640

ISBN-13: 0486318516

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DIVClear, concise text covers aerodynamic phenomena of the rotor and offers guidelines for helicopter performance evaluation. Originally prepared for NASA. Prefaces. New Indexes. 10 black-and-white photos. 537 figures. /div