Download or read book Method for Calculation of Ram jet Performance written by John R. Henry and published by . This book was released on 1951 with total page 102 pages. Available in PDF, EPUB and Kindle. Book excerpt: A method utilizing precalculated solutions graphically presented for calculating subsonic and supersonic ram-jet thrust coefficients and other important quantities is presented with the associated equations and graphs. Using the assumption of constant values of specific-heat ratio and gas constant equal to those of standard air, the thrust-coefficient calculation has been reduced to a few simple operations. Correction methods are presented to account for variations in specific-heat ratio and gas constant. The correction to the thrust coefficient for a typical set of operating conditions may be of the order of 5 to 10 percent.

Download or read book A simplified method of calculating ram jet performance applicable to low Mach numbers written by James R. Gannett and published by . This book was released on with total page 13 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book External Memorandum No 7 Project MX 7947 Project Wizard A Simplified Method of Calculating Ram Jet Performance Applicable to High Mach Numbers written by and published by . This book was released on 1947 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book A Method for Performance Analysis of a Ramjet Engine in a Free jet Test Facility and Analysis of Performance Uncertainty Contributors written by Kevin Raymond Holst and published by . This book was released on 2012 with total page 71 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ramjet and scramjet engines are being developed to provide a more fuel efficient means of propulsion at high Mach numbers. Part of the development of these engines involves test and evaluation of an engine in ground facilities as well as in flight. Ground facilities, like Arnold Engineering Development Complex (AEDC) and those at engine manufacturers like General Electric (GE) and Pratt & Whitney (PW), have decades of experience testing traditional turbine engines and much less experience testing full scale ramjet engines. Testing a supersonic engine in a free-jet mode presents a host of challenges not experienced during traditional direct connect turbine engine tests. Characterizing the performance of an engine in a free-jet test facility is a difficult task due in part to the difficulty in determining how much air the engine is ingesting and the spillage, friction and base drag of the engine installation. As more exotic propulsion systems like DARPA's Falcon Combined Cycle Engine Test (FaCET) article or NASA's X-43 are developed, there is a greater need for effective ground tests to determine engine performance and operability prior to flight testing. This thesis proposes a method for calculating three key performance parameters (airflow, fuel flow, and thrust) and investigates the uncertainty influences for these calculations. A data reduction method was developed for this thesis to calculate the engine airflow, net thrust, and specific impulse (ISP) in a ground test of a generic ramjet engine in a free-jet test facility. It considered typical measurements for an engine test (pressures, temperatures, fuel flow, scale force, and engine and cowl geometry). Once the code was developed, an uncertainty analysis of the calculations was conducted, starting with a simplified analytical assessment. A common industry accepted uncertainty approach was then used in conjunction with the data reduction code to determine the sensitivity or influence coefficients of the independent measurements on the dependent parameters by the dithering method. These influence coefficients were used to ascertain where measurement improvements could be made to affect the greatest reduction in uncertainty of the predicted engine performance.

Download or read book Calculation of Ram jet Performance with a Cut off Nozzle written by Victor Halbmillion and published by . This book was released on 1947 with total page 3 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Analysis of Ram jet Engine Performance Including Effects of Component Changes written by Richard J. Weber and published by . This book was released on 1956 with total page 54 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book A Method of Estimating Ram jet Performance written by V. HALBMILLION and published by . This book was released on 1947 with total page 13 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Ram Jet Performance Calculations at High Stagnation Temperatures written by A. B. P. Beeton and published by . This book was released on 1956 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Some Curves for Use in Ram jet Performance Calculations written by A.B.P. Beeton and published by . This book was released on 1949 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Calculation of the Performance of Fixed Geometric Ram Jet Engines written by M. Sibulkin and published by . This book was released on 1953 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Analysis and Calculation of Relative Performance for a Ram Jet Designed to Utilize to Advantage the Latent Heat of Vaporization of Fuel written by Richard Curry and published by . This book was released on 1946 with total page 106 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Methods of Ramjet Performance Analysis and Geometry Determination written by John L. Leingang and published by . This book was released on 1977 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Control of Gas turbine and Ramjet Engines written by Lev Abramovich Zalmanzon and published by . This book was released on 1961 with total page 268 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Some Fundamentals on the Performance of Ramjets with Subsonic and Supersonic Combustion written by H. Wittenberg and published by . This book was released on 2000 with total page 212 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Index of NACA Technical Publications written by United States. National Advisory Committee for Aeronautics and published by . This book was released on 1959 with total page 388 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book A Selected Listing of NASA Scientific and Technical Reports for written by and published by . This book was released on 1949 with total page 750 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book List of Technical Notes 1947 1953 written by United States. National Advisory Committee for Aeronautics and published by . This book was released on 1954 with total page 162 pages. Available in PDF, EPUB and Kindle. Book excerpt: