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This open access book presents the findings of Collaborative
Research Center Transregio 40 (TRR40), initiated in July 2008 and
funded by the German Research Foundation (DFG). Gathering
innovative design concepts for thrust chambers and nozzles, as well
as cutting-edge methods of aft-body flow control and
propulsion-component cooling, it brings together fundamental
research undertaken at universities, testing carried out at the
German Aerospace Center (DLR) and industrial developments from the
ArianeGroup. With a particular focus on heat transfer analyses and
novel cooling concepts for thermally highly loaded structures, the
book highlights the aft-body flow of the space transportation
system and its interaction with the nozzle flow, which are
especially critical during the early phase of atmospheric ascent.
Moreover, it describes virtual demonstrators for combustion
chambers and nozzles, and discusses their industrial applicability.
As such, it is a timely resource for researchers, graduate students
and practitioners.
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.
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.
This book gathers contributions to the 20th biannual symposium of
the German Aerospace Aerodynamics Association (STAB) and the German
Society for Aeronautics and Astronautics (DGLR). The individual
chapters reflect ongoing research conducted by the STAB members in
the field of numerical and experimental fluid mechanics and
aerodynamics, mainly for (but not limited to) aerospace
applications, and cover both nationally and EC-funded projects.
Special emphasis is given to collaborative research projects
conducted by German scientists and engineers from universities,
research-establishments and industries. By addressing a number of
cutting-edge applications, together with the relevant physical and
mathematics fundamentals, the book provides readers with a
comprehensive overview of the current research work in the field.
Though the book's primary emphasis is on the aerospace context, it
also addresses further important applications, e.g. in ground
transportation and energy.
The book reports on advanced solutions to the problem of simulating
wing and nacelle stall, as presented and discussed by
internationally recognized researchers at the Closing Symposium of
the DFG Research Unit FOR 1066. Reliable simulations of flow
separation on airfoils, wings and powered engine nacelles at high
Reynolds numbers represent great challenges in defining suitable
mathematical models, computing numerically accurate solutions and
providing comprehensive experimental data for the validation of
numerical simulations. Additional problems arise from the need to
consider airframe-engine interactions and inhomogeneous onset flow
conditions, as real aircraft operate in atmospheric environments
with often-large distortions. The findings of fundamental and
applied research into these and other related issues are reported
in detail in this book, which targets all readers, academics and
professionals alike, interested in the development of advanced
computational fluid dynamics modeling for the simulation of complex
aircraft flows with flow separation.
This book reports on the German research initiative ComFliTe
(Computational Flight Testing), the main goal of which was to
enhance the capabilities of and tools for numerical simulation in
flight physics to support future aircraft design and development.
The initiative was coordinated by the German Aerospace Center (DLR)
and promoted collaboration between the aircraft industry and
academia. Activities focused on improving physical modeling for
separated flows, developing advanced numerical algorithms for
series computations and sensitivity predictions, as well as
surrogate and reduced order modeling for aero data production and
developing robust fluid-, structure- and flight mechanics coupling
procedures. Further topics included more efficient handling of
aircraft control surfaces and improving simulation methods for
maneuvers, such as gust encounter. The important results of this
three-year initiative were presented during the ComFliTe closing
symposium, which took place at the DLR in Braunschweig, Germany, on
11-12 June 2012. Computational Flight Testing addresses both
students and researchers in the areas of mathematics, numerical
simulation and optimization methods, as well as professionals in
aircraft design working at the forefront of their field.
The book reports on advanced solutions to the problem of simulating
wing and nacelle stall, as presented and discussed by
internationally recognized researchers at the Closing Symposium of
the DFG Research Unit FOR 1066. Reliable simulations of flow
separation on airfoils, wings and powered engine nacelles at high
Reynolds numbers represent great challenges in defining suitable
mathematical models, computing numerically accurate solutions and
providing comprehensive experimental data for the validation of
numerical simulations. Additional problems arise from the need to
consider airframe-engine interactions and inhomogeneous onset flow
conditions, as real aircraft operate in atmospheric environments
with often-large distortions. The findings of fundamental and
applied research into these and other related issues are reported
in detail in this book, which targets all readers, academics and
professionals alike, interested in the development of advanced
computational fluid dynamics modeling for the simulation of complex
aircraft flows with flow separation.
Hermann Schlichting is one of the internationally leading
scientists in the field of th fluid mechanics during the 20
century. He contributed largely to modern theories of viscous flows
and aircraft aerodynamics. His famous monographies Boundary Layer
Theory and Aerodynamics of Aircraft are known worldwide and they
appeared in six languages. He held Chairs of Aerodynamics and Fluid
Mechanics at Technische U- versitat Braunschweig during 37 years
and directed the Institute of Aerodynamics of the Deutsche
Forschungsanstalt fur Luftfahrt in Braunschweig. He also directed
the Aerodynamische Versuchsanstalt Goettingen and served in the
Executive Board of the German Aerospace Center (DFVLR). Hermann
Schlichting played a leading role in the rebuilding of aerospace
research in Germany after the Second World War. th The occasion of
his 100 birthday in the year 2007 was an excellent opportunity to
acknowledge important ideas and accomplishments that Hermann
Schlichting c- tributed to science. The editors of this volume are
the present successors of Hermann Schlichting in his role as
director of the two research institutes in Braunschweig. We were
glad to host a scientific colloquium in his honor on 28 September
2007. Invited former scholars of Hermann Schlichting reviewed his
work in boundary layer theory and in aircraft aerodynamics followed
by presentations of important research results of his institutes
today.
This book reports on the German research initiative ComFliTe
(Computational Flight Testing), the main goal of which was to
enhance the capabilities of and tools for numerical simulation in
flight physics to support future aircraft design and development.
The initiative was coordinated by the German Aerospace Center (DLR)
and promoted collaboration between the aircraft industry and
academia. Activities focused on improving physical modeling for
separated flows, developing advanced numerical algorithms for
series computations and sensitivity predictions, as well as
surrogate and reduced order modeling for aero data production and
developing robust fluid-, structure- and flight mechanics coupling
procedures. Further topics included more efficient handling of
aircraft control surfaces and improving simulation methods for
maneuvers, such as gust encounter. The important results of this
three-year initiative were presented during the ComFliTe closing
symposium, which took place at the DLR in Braunschweig, Germany, on
11-12 June 2012. Computational Flight Testing addresses both
students and researchers in the areas of mathematics, numerical
simulation and optimization methods, as well as professionals in
aircraft design working at the forefront of their field.
This open access book presents the findings of Collaborative
Research Center Transregio 40 (TRR40), initiated in July 2008 and
funded by the German Research Foundation (DFG). Gathering
innovative design concepts for thrust chambers and nozzles, as well
as cutting-edge methods of aft-body flow control and
propulsion-component cooling, it brings together fundamental
research undertaken at universities, testing carried out at the
German Aerospace Center (DLR) and industrial developments from the
ArianeGroup. With a particular focus on heat transfer analyses and
novel cooling concepts for thermally highly loaded structures, the
book highlights the aft-body flow of the space transportation
system and its interaction with the nozzle flow, which are
especially critical during the early phase of atmospheric ascent.
Moreover, it describes virtual demonstrators for combustion
chambers and nozzles, and discusses their industrial applicability.
As such, it is a timely resource for researchers, graduate students
and practitioners.
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