Author: James C. RossPublisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
Lift-enhancing Tabs on Multi-element Airfoils
Author: James C. RossExperimental and Computational Investigation of Lift-enhancing Tabs on a Multi-element Airfoil
Author: Dale L. AshbyPublisher:
ISBN:
Category : Aerofoils
Languages : en
Pages : 164
Book Description
Navier-Stokes Analysis of Lift-enhancing Tabs on Multi-element Airfoils
Author: Paul G. CarrannantoPublisher:
ISBN:
Category : Aerofoils
Languages : en
Pages : 320
Book Description
Experimental and Computational Investigation of Lift-Enhancing Tabs on a Multi-Element Airfoil
Author: National Aeronautics and Space Administration (NASA)Publisher: Createspace Independent Publishing Platform
ISBN: 9781723047541
Category :
Languages : en
Pages : 158
Book Description
An experimental and computational investigation of the effect of lift-enhancing tabs on a two-element airfoil has been conducted. The objective of the study was to develop an understanding of the flow physics associated with lift-enhancing tabs on a multi-element airfoil. An NACA 63(2)-215 ModB airfoil with a 30% chord fowler flap was tested in the NASA Ames 7- by 10-Foot Wind Tunnel. Lift-enhancing tabs of various heights were tested on both the main element and the flap for a variety of flap riggings. A combination of tabs located at the main element and flap trailing edges increased the airfoil lift coefficient by 11% relative to the highest lift coefficient achieved by any baseline configuration at an angle of attack of 0 deg, and C(sub 1max) was increased by 3%. Computations of the flow over the two-element airfoil were performed using the two-dimensional incompressible Navier-Stokes code INS2D-UP. The computed results predicted all of the trends observed in the experimental data quite well. In addition, a simple analytic model based on potential flow was developed to provide a more detailed understanding of how lift-enhancing tabs work. The tabs were modeled by a point vortex at the air-foil or flap trailing edge. Sensitivity relationships were derived which provide a mathematical basis for explaining the effects of lift-enhancing tabs on a multi-element airfoil. Results of the modeling effort indicate that the dominant effects of the tabs on the pressure distribution of each element of the airfoil can be captured with a potential flow model for cases with no flow separation. Ashby, Dale L. Ames Research Center LIFT; AIRFOILS; TABS (CONTROL SURFACES); WIND TUNNEL TESTS; ANGLE OF ATTACK; NAVIER-STOKES EQUATION; COMPUTATIONAL FLUID DYNAMICS; GRID GENERATION (MATHEMATICS); AIRFOIL PROFILES; FLAPS (CONTROL SURFACES); TRAILING EDGES; INCOMPRESSIBLE FLOW; DATA CORRELATION; PREDICTION ANALYSIS TECHNIQUES; VORTICES; POTENTIAL FLOW; PRESSURE DISTRIBUTION; AERODYNAMIC C...
Experimental Study of Lift-enhancing Tabs on a Two-element Airfoil
Author: Bruce L. StormsPublisher:
ISBN:
Category : Aerofoils
Languages : en
Pages : 7
Book Description
EXPERIMENTAL STUDY OF LIFT-ENHANCING TABS ON A TWO-ELEMENT AIRFOIL... NASA/TM-95-207303... MAY 5, 1998
Author: Experimental and Computational Investigation of Lift-enhancing Tabs on a Multi-element Airfoirl
Author: Dale AshbyPublisher:
ISBN:
Category : Aerofoils
Languages : en
Pages : 199
Book Description
Parameter Optimization Research on Lift-enhancing of Multi-element Airfoil Using Air-blowing
Author: General Aviation Aircraft Design
Author: Snorri GudmundssonPublisher: Butterworth-Heinemann
ISBN: 0123973295
Category : Technology & Engineering
Languages : en
Pages : 1058
Book Description
Find the right answer the first time with this useful handbook of preliminary aircraft design. Written by an engineer with close to 20 years of design experience, General Aviation Aircraft Design: Applied Methods and Procedures provides the practicing engineer with a versatile handbook that serves as the first source for finding answers to realistic aircraft design questions. The book is structured in an "equation/derivation/solved example" format for easy access to content. Readers will find it a valuable guide to topics such as sizing of horizontal and vertical tails to minimize drag, sizing of lifting surfaces to ensure proper dynamic stability, numerical performance methods, and common faults and fixes in aircraft design. In most cases, numerical examples involve actual aircraft specs. Concepts are visually depicted by a number of useful black-and-white figures, photos, and graphs (with full-color images included in the eBook only). Broad and deep in coverage, it is intended for practicing engineers, aerospace engineering students, mathematically astute amateur aircraft designers, and anyone interested in aircraft design. Organized by articles and structured in an "equation/derivation/solved example" format for easy access to the content you need Numerical examples involve actual aircraft specs Contains high-interest topics not found in other texts, including sizing of horizontal and vertical tails to minimize drag, sizing of lifting surfaces to ensure proper dynamic stability, numerical performance methods, and common faults and fixes in aircraft design Provides a unique safety-oriented design checklist based on industry experience Discusses advantages and disadvantages of using computational tools during the design process Features detailed summaries of design options detailing the pros and cons of each aerodynamic solution Includes three case studies showing applications to business jets, general aviation aircraft, and UAVs Numerous high-quality graphics clearly illustrate the book's concepts (note: images are full-color in eBook only)
Author: