The Drag of Airplane Radiators with Special Reference to Air Heating (comparison of Theory and Experiment) PDF Download
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Author: B. Göthert
Publisher:
ISBN:
Category : Air flow
Languages : en
Pages : 626
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Book Description
This report contains a survey of past radiator research. This report also is intended as a systematic comparison of theoretical and experimental radiator drag, with the object of ascertaining the most important loss sources and their interaction in different cases of installation, and to separate the radiator systems which are amenable to calculation, both as regards axial flow and drag. The sources of loss due to the diffuser are to be looked into closely as in many cases they can be of preeminent magnitude and their customary appraisal, according to Fliegner's formula, does not meet actual conditions. Besides, generally applicable equations and charts are developed for the rapid determination of the heating effect of radiators as regards flow and drag, and then checked by routine tests on hot radiators.
Author: B. Göthert
Publisher:
ISBN:
Category : Air flow
Languages : en
Pages : 626
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Book Description
This report contains a survey of past radiator research. This report also is intended as a systematic comparison of theoretical and experimental radiator drag, with the object of ascertaining the most important loss sources and their interaction in different cases of installation, and to separate the radiator systems which are amenable to calculation, both as regards axial flow and drag. The sources of loss due to the diffuser are to be looked into closely as in many cases they can be of preeminent magnitude and their customary appraisal, according to Fliegner's formula, does not meet actual conditions. Besides, generally applicable equations and charts are developed for the rapid determination of the heating effect of radiators as regards flow and drag, and then checked by routine tests on hot radiators.
Author: United States. Superintendent of Documents
Publisher:
ISBN:
Category : Government publications
Languages : en
Pages : 2868
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Book Description
![Catalogue of the Public Documents of the [the Fifty-third] Congress [to the 76th Congress] and of All Departments of the Government of the United States PDF](https://books.google.com/books/content/images/frontcover/YUwLkyg9iq0C?fife=w80-h100)
Author: United States. Superintendent of Documents
Publisher:
ISBN:
Category : Government publications
Languages : en
Pages : 2636
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Book Description
Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 608
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Book Description
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 2524
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Book Description
Author: Charles Fayette Taylor
Publisher: MIT Press
ISBN: 9780262700269
Category : Technology & Engineering
Languages : en
Pages : 588
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Book Description
This revised edition of Taylor's classic work on the internal-combustion engine incorporates changes and additions in engine design and control that have been brought on by the world petroleum crisis, the subsequent emphasis on fuel economy, and the legal restraints on air pollution. The fundamentals and the topical organization, however, remain the same. The analytic rather than merely descriptive treatment of actual engine cycles, the exhaustive studies of air capacity, heat flow, friction, and the effects of cylinder size, and the emphasis on application have been preserved. These are the basic qualities that have made Taylor's work indispensable to more than one generation of engineers and designers of internal-combustion engines, as well as to teachers and graduate students in the fields of power, internal-combustion engineering, and general machine design.
Author: Charles Fayette Taylor
Publisher:
ISBN:
Category : Internal combustion engines
Languages : en
Pages : 594
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Book Description
Author: Peter Spring
Publisher: Air World
ISBN: 1526773538
Category : History
Languages : en
Pages : 346
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Book Description
By the mid-1930s the obstacles to high speed that aircraft designers faced included the question of cooling the engine. This was a big challenge that those working on the new fast aeroplanes entering service as the war clouds gathered over Europe had to consider, as the drag from the system increased as a square of the speed. Ducted systems were designed which lowered drag, but these were based on the assumption that the system was cold. This ignored the potential energy from the air, heated by the radiator, for liquid-cooled aircraft, and from the discharged engine exhaust gases. It took a profoundly lateral thinker to harness the possibilities of the paradox that heat could cut the cost of cooling. That thinker was the British engineer Frederick William Meredith. A researcher at the Royal Aircraft Establishment at Farnborough until 1938, F.W. Meredith a key player in the UK’s development of the autopilot and remote-controlled aircraft. His contribution to Allied success in the Second World War was enormous – but, incredibly, he was also a known a Soviet agent. Few would doubt that the Supermarine Spitfire was a pioneering aeroplane – not because it was an all metal, monoplane with retractable undercarriage and enclosed cockpit as these were not unique – but because it was the first to incorporate a Meredith designed ducted cooling system. This was intended from the beginning to use heat to create ‘negative drag’. In practice the Spitfire’s design was flawed, as Meredith himself pointed out, and did not fully use what became known as the ‘Meredith Effect’. Meredith also made entirely overlooked but extremely important contributions to resolving the problem of how to induce air smoothly into cooling ducts at high speeds without which, as the Spitfire demonstrated, ducted cooling systems worked sub-optimally. The first aeroplane properly to exploit the ‘Meredith Effect’ was the North American P-51 Mustang, this being a very significant factor as to why it was 30mph faster than the Spitfire when both had the same Rolls-Royce Merlin engine. This book by Peters Spring examines the life of the remarkable, and controversial, F.W. Meredith, an individual who has largely been forgotten by history despite the brilliant advances he made – advances which helped the Allies win the war against Hitler’s Third Reich.
Author: Daniel W. Lester
Publisher:
ISBN:
Category : Government publications
Languages : en
Pages : 562
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Book Description
Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 546
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Book Description
Chiefly translations from foreign aeronautical journals.
