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After the demise of Fokker in 1996 one feared that interest in aeronautical engineering would strongly diminish. Two years later the situation was re-appraised, and the interest in aeronautical engineering remained, so the course was reinstated. This title includes the author's lecture notes from these courses.
Book Synopsis Aerodynamic Design of Transport Aircraft by : Ed Obert
Download or read book Aerodynamic Design of Transport Aircraft written by Ed Obert and published by IOS Press. This book was released on 2009 with total page 656 pages. Available in PDF, EPUB and Kindle. Book excerpt: After the demise of Fokker in 1996 one feared that interest in aeronautical engineering would strongly diminish. Two years later the situation was re-appraised, and the interest in aeronautical engineering remained, so the course was reinstated. This title includes the author's lecture notes from these courses.
The origin of Aerodynamic Design of Transport Aircraft stems from the time when the author was appointed part-time professor in the Aerospace Faculty of Delft University of Technology. At the time his main activities were those of leading the departments of Aerodynamics, Performance and Preliminary Design at Fokker Aircraft Company. The groundwork for this book started in 1987 as a series of lecture notes consisting mainly of pictorial material with a minimum of English explanatory text. After the demise of Fokker in 1996 one feared that interest in aeronautical engineering would strongly diminish. As a result of this, the course was discontinued and the relationship between the author and the faculty came to an end. Two years later the situation was reappraised, and the interest in aeronautical engineering remained, so the course was reinstated with a former Fokker colleague Ronald Slingerland as lecturer. The lecture notes from these courses form the foundation of this publication.
Book Synopsis Aerodynamic Design of Transport Aircraft by : E. Obert
Download or read book Aerodynamic Design of Transport Aircraft written by E. Obert and published by IOS Press. This book was released on 2009-04-16 with total page 656 pages. Available in PDF, EPUB and Kindle. Book excerpt: The origin of Aerodynamic Design of Transport Aircraft stems from the time when the author was appointed part-time professor in the Aerospace Faculty of Delft University of Technology. At the time his main activities were those of leading the departments of Aerodynamics, Performance and Preliminary Design at Fokker Aircraft Company. The groundwork for this book started in 1987 as a series of lecture notes consisting mainly of pictorial material with a minimum of English explanatory text. After the demise of Fokker in 1996 one feared that interest in aeronautical engineering would strongly diminish. As a result of this, the course was discontinued and the relationship between the author and the faculty came to an end. Two years later the situation was reappraised, and the interest in aeronautical engineering remained, so the course was reinstated with a former Fokker colleague Ronald Slingerland as lecturer. The lecture notes from these courses form the foundation of this publication.
After the demise of Fokker in 1996 one feared that interest in aeronautical engineering would strongly diminish. Two years later the situation was re-appraised, and the interest in aeronautical engineering remained, so the course was reinstated. This title includes the author's lecture notes from these courses.
Book Synopsis Aerodynamic Design of Transport Aircraft by : Ed Obert
Download or read book Aerodynamic Design of Transport Aircraft written by Ed Obert and published by . This book was released on 2009 with total page 638 pages. Available in PDF, EPUB and Kindle. Book excerpt: After the demise of Fokker in 1996 one feared that interest in aeronautical engineering would strongly diminish. Two years later the situation was re-appraised, and the interest in aeronautical engineering remained, so the course was reinstated. This title includes the author's lecture notes from these courses.
Since the education of aeronautical engineers at Delft University of Technology started in 1940 under tae inspiring leadership of Professor H.J. van der Maas, much emphasis has been placed on the design of aircraft as part of the student's curriculum. Not only is aircraft design an optional subject for thesis work, but every aeronautical student has to carry out a preliminary airplane design in the course of his study. The main purpose of this preliminary design work is to enable the student to synthesize the knowledge ob tained separately in courses on aerodynamics, aircraft performances, stability and con trol, aircraft structures, etc. The student's exercises in preliminary design have been directed through the years by a number of staff members of the Department of Aerospace Engineering in Delft. The author of this book, Mr. E. Torenbeek, has made a large contribution to this part of the study programme for many years. Not only has he acquired vast experience in teaching airplane design at university level, but he has also been deeply involved in design-oriented re search, e.g. developing rational design methods and systematizing design information. I am very pleased that this wealth of experience, methods and data is now presented in this book.
Book Synopsis Synthesis of Subsonic Airplane Design by : E. Torenbeek
Download or read book Synthesis of Subsonic Airplane Design written by E. Torenbeek and published by Springer Science & Business Media. This book was released on 2013-06-29 with total page 607 pages. Available in PDF, EPUB and Kindle. Book excerpt: Since the education of aeronautical engineers at Delft University of Technology started in 1940 under tae inspiring leadership of Professor H.J. van der Maas, much emphasis has been placed on the design of aircraft as part of the student's curriculum. Not only is aircraft design an optional subject for thesis work, but every aeronautical student has to carry out a preliminary airplane design in the course of his study. The main purpose of this preliminary design work is to enable the student to synthesize the knowledge ob tained separately in courses on aerodynamics, aircraft performances, stability and con trol, aircraft structures, etc. The student's exercises in preliminary design have been directed through the years by a number of staff members of the Department of Aerospace Engineering in Delft. The author of this book, Mr. E. Torenbeek, has made a large contribution to this part of the study programme for many years. Not only has he acquired vast experience in teaching airplane design at university level, but he has also been deeply involved in design-oriented re search, e.g. developing rational design methods and systematizing design information. I am very pleased that this wealth of experience, methods and data is now presented in this book.
This book presents the challenges, the tools and the concepts for developing economically viable high speed civil transport aircraft under environmental constraints. Computational tools for aircraft design and optimization are outlined and application in an industrial environment is shown for new and innovative case studies.
Book Synopsis New Design Concepts for High Speed Air Transport by : H. Sobieczky
Download or read book New Design Concepts for High Speed Air Transport written by H. Sobieczky and published by Springer. This book was released on 2014-05-04 with total page 333 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents the challenges, the tools and the concepts for developing economically viable high speed civil transport aircraft under environmental constraints. Computational tools for aircraft design and optimization are outlined and application in an industrial environment is shown for new and innovative case studies.
Book Synopsis Synthesis of Subsonic Airplane Design by : Egbert Torenbeek
Download or read book Synthesis of Subsonic Airplane Design written by Egbert Torenbeek and published by . This book was released on 1981 with total page 598 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Dietrich Kuchemann's The Aerodynamic Design of Aircraft is as relevant and as forward looking today as it was when it was first published in 1978. It comprises the philosophy and life's work of a unique and visionary intellect. Based upon material taught in a course at Imperial College London, the insight and intuition conveyed by this text are timeless. With its republication, Kuchemann's influence will extend to the next generation of aerospace industry students and practitioners and the vehicles they will produce. Kuchemann establishes three classes of aircraft based on the character of flow involved. Each class is suitable for a distinct cruise speed regime: classical and swept aircraft for subsonic and transonic cruise, slender-wing aircraft for supersonic cruise, and wave-rider aircraft for hypersonic cruise. Unlike most engineering texts, which focus on a set of tools, Kuchemann's approach is to focus on the problem and its solution - what kind of flow is best for a given class of aircraft and how to achieve it.With this approach, Kuchemann fully embraces the true inverse nature of design; rather than answer what flow given the shape, he strives to answer what flow given the purpose and then what shape given the flow.
Book Synopsis The Aerodynamic Design of Aircraft by : Dietrich Küchemann
Download or read book The Aerodynamic Design of Aircraft written by Dietrich Küchemann and published by AIAA Education. This book was released on 2012 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Dietrich Kuchemann's The Aerodynamic Design of Aircraft is as relevant and as forward looking today as it was when it was first published in 1978. It comprises the philosophy and life's work of a unique and visionary intellect. Based upon material taught in a course at Imperial College London, the insight and intuition conveyed by this text are timeless. With its republication, Kuchemann's influence will extend to the next generation of aerospace industry students and practitioners and the vehicles they will produce. Kuchemann establishes three classes of aircraft based on the character of flow involved. Each class is suitable for a distinct cruise speed regime: classical and swept aircraft for subsonic and transonic cruise, slender-wing aircraft for supersonic cruise, and wave-rider aircraft for hypersonic cruise. Unlike most engineering texts, which focus on a set of tools, Kuchemann's approach is to focus on the problem and its solution - what kind of flow is best for a given class of aircraft and how to achieve it.With this approach, Kuchemann fully embraces the true inverse nature of design; rather than answer what flow given the shape, he strives to answer what flow given the purpose and then what shape given the flow.
This thesis performs a design study exploring the aerodynamic design of a strut-braced transport aircraft. Moving from classical lifting-line theory to modern Reynolds Averaged Navier Stokes methods, several design and analysis methods are used to better understand this configuration, which is designed to meet NASA's N+4 commuter transport goals. The use of a novel slotted airfoil, the S207, is incorporated from the start. Intended to achieve long runs of laminar flow, this airfoil was designed along with the strut-braced configuration presented in this work. Analysis of both the airfoil's sectional characteristics and its application to the planform are explored. Several other areas researched include the use of a lifting strut verses an aerodynamically feathered strut and the design of winglets on the high-span aircraft. The aerodynamically feathered strut is chosen for the configuration at hand, while winglets are predicted by classical methods to add approximately 3% to maximum efficiency. The configuration is further analyzed with the modern computational fluid dynamic solver, OVERFLOW. This Reynolds Averaged Navier-Stokes solver is coupled with the Amplification-Factor-Transport transition model for transonic laminar flow prediction. Several performance differences with both the two-dimensional airfoil, and three-dimensional configuration are quantified. For two-dimensional cruise cases, Euler methods predict approximately 15 counts less profile drag when compared to the Reynolds Averaged method. Increases in profile drag that are found in the Reynolds Averaged models are attributed to early transition on the airfoil fore-element. The Euler methods also show transition to move slowly forward on the upper surface at increasing angles of attack. In comparison, the RANS method has transition move rather rapidly forward, limiting the upper corner of the low-drag region. Three-dimensional comparisons include highlighting problem areas around the strut/wing juncture, along with differences in spanwise lift distributions due to the addition of winglets. Further discussion on the sectional pressure distributions and the resulting two-dimensionality of the flow on the slotted configuration due to the winglet is also presented. Overall efficiency gains predicted by RANS with the addition of the winglet is found to be approximately 5%.
Book Synopsis Aerodynamic Design and Analysis for a Strut-Braced Transport Aircraft Utilizing Slotted, Natural-Laminar-Flow Airfoils by : Leonard P. Metkowski
Download or read book Aerodynamic Design and Analysis for a Strut-Braced Transport Aircraft Utilizing Slotted, Natural-Laminar-Flow Airfoils written by Leonard P. Metkowski and published by . This book was released on 2023 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This thesis performs a design study exploring the aerodynamic design of a strut-braced transport aircraft. Moving from classical lifting-line theory to modern Reynolds Averaged Navier Stokes methods, several design and analysis methods are used to better understand this configuration, which is designed to meet NASA's N+4 commuter transport goals. The use of a novel slotted airfoil, the S207, is incorporated from the start. Intended to achieve long runs of laminar flow, this airfoil was designed along with the strut-braced configuration presented in this work. Analysis of both the airfoil's sectional characteristics and its application to the planform are explored. Several other areas researched include the use of a lifting strut verses an aerodynamically feathered strut and the design of winglets on the high-span aircraft. The aerodynamically feathered strut is chosen for the configuration at hand, while winglets are predicted by classical methods to add approximately 3% to maximum efficiency. The configuration is further analyzed with the modern computational fluid dynamic solver, OVERFLOW. This Reynolds Averaged Navier-Stokes solver is coupled with the Amplification-Factor-Transport transition model for transonic laminar flow prediction. Several performance differences with both the two-dimensional airfoil, and three-dimensional configuration are quantified. For two-dimensional cruise cases, Euler methods predict approximately 15 counts less profile drag when compared to the Reynolds Averaged method. Increases in profile drag that are found in the Reynolds Averaged models are attributed to early transition on the airfoil fore-element. The Euler methods also show transition to move slowly forward on the upper surface at increasing angles of attack. In comparison, the RANS method has transition move rather rapidly forward, limiting the upper corner of the low-drag region. Three-dimensional comparisons include highlighting problem areas around the strut/wing juncture, along with differences in spanwise lift distributions due to the addition of winglets. Further discussion on the sectional pressure distributions and the resulting two-dimensionality of the flow on the slotted configuration due to the winglet is also presented. Overall efficiency gains predicted by RANS with the addition of the winglet is found to be approximately 5%.
Book Synopsis The Aerodynamic Design of Aircraft by : Dietrich Küchemann
Download or read book The Aerodynamic Design of Aircraft written by Dietrich Küchemann and published by Pergamon. This book was released on 1978 with total page 584 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Although the overall appearance of modern airliners has not changed a lot since the introduction of jetliners in the 1950s, their safety, efficiency and environmental friendliness have improved considerably. Main contributors to this have been gas turbine engine technology, advanced materials, computational aerodynamics, advanced structural analysis and on-board systems. Since aircraft design became a highly multidisciplinary activity, the development of multidisciplinary optimization (MDO) has become a popular new discipline. Despite this, the application of MDO during the conceptual design phase is not yet widespread. Advanced Aircraft Design: Conceptual Design, Analysis and Optimization of Subsonic Civil Airplanes presents a quasi-analytical optimization approach based on a concise set of sizing equations. Objectives are aerodynamic efficiency, mission fuel, empty weight and maximum takeoff weight. Independent design variables studied include design cruise altitude, wing area and span and thrust or power loading. Principal features of integrated concepts such as the blended wing and body and highly non-planar wings are also covered. The quasi-analytical approach enables designers to compare the results of high-fidelity MDO optimization with lower-fidelity methods which need far less computational effort. Another advantage to this approach is that it can provide answers to “what if” questions rapidly and with little computational cost. Key features: Presents a new fundamental vision on conceptual airplane design optimization Provides an overview of advanced technologies for propulsion and reducing aerodynamic drag Offers insight into the derivation of design sensitivity information Emphasizes design based on first principles Considers pros and cons of innovative configurations Reconsiders optimum cruise performance at transonic Mach numbers Advanced Aircraft Design: Conceptual Design, Analysis and Optimization of Subsonic Civil Airplanes advances understanding of the initial optimization of civil airplanes and is a must-have reference for aerospace engineering students, applied researchers, aircraft design engineers and analysts.
Book Synopsis Advanced Aircraft Design by : Egbert Torenbeek
Download or read book Advanced Aircraft Design written by Egbert Torenbeek and published by John Wiley & Sons. This book was released on 2013-05-28 with total page 412 pages. Available in PDF, EPUB and Kindle. Book excerpt: Although the overall appearance of modern airliners has not changed a lot since the introduction of jetliners in the 1950s, their safety, efficiency and environmental friendliness have improved considerably. Main contributors to this have been gas turbine engine technology, advanced materials, computational aerodynamics, advanced structural analysis and on-board systems. Since aircraft design became a highly multidisciplinary activity, the development of multidisciplinary optimization (MDO) has become a popular new discipline. Despite this, the application of MDO during the conceptual design phase is not yet widespread. Advanced Aircraft Design: Conceptual Design, Analysis and Optimization of Subsonic Civil Airplanes presents a quasi-analytical optimization approach based on a concise set of sizing equations. Objectives are aerodynamic efficiency, mission fuel, empty weight and maximum takeoff weight. Independent design variables studied include design cruise altitude, wing area and span and thrust or power loading. Principal features of integrated concepts such as the blended wing and body and highly non-planar wings are also covered. The quasi-analytical approach enables designers to compare the results of high-fidelity MDO optimization with lower-fidelity methods which need far less computational effort. Another advantage to this approach is that it can provide answers to “what if” questions rapidly and with little computational cost. Key features: Presents a new fundamental vision on conceptual airplane design optimization Provides an overview of advanced technologies for propulsion and reducing aerodynamic drag Offers insight into the derivation of design sensitivity information Emphasizes design based on first principles Considers pros and cons of innovative configurations Reconsiders optimum cruise performance at transonic Mach numbers Advanced Aircraft Design: Conceptual Design, Analysis and Optimization of Subsonic Civil Airplanes advances understanding of the initial optimization of civil airplanes and is a must-have reference for aerospace engineering students, applied researchers, aircraft design engineers and analysts.
