Note On the Theory of Rocket Motors
Note On the Theory of Rocket Motors
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In our eReader you can find the full English version of the book. Read Note On the Theory of Rocket Motors Online - link to read the book on full screen. Our eReader also allows you to upload and read Pdf, Txt, ePub and fb2 books. In the Mini eReder on the page below you can quickly view all pages of the book - Read Book Note On the Theory of Rocket Motors
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)df + f dp + mdv = (p - p )df . X Vi x *Q' x x *x x F x *0 x This indicates that the maximum thrust occurs when the gas at the end cross-section has just expanded to atmospheric pressure; -5- the thrust is then solely due to momentum transport. (Malina does not mention this fact explicitly. ) Wnen the end cross-section is so large that the exit pressure would be below outside pressure according to the theory as explained, the assumptions on which this theory is based are no longer valid; a diff...erent flow pattern involving shocks will occur. Malina determines the thrust under the assumption of a straight shock; the resulting change accounts for the break in the indicated graph.
Malina considers as an example a case with 2c. = 100, T = 11, 100°F. R = . 0658 B. T . U . /lb. /°F. , y = 1. 2, and finds that the maximum thrust is obtained when -g— - 11. 85, 1 t i. E. When the exit diameter is 3. 4-4 times the throat diameter.
The maximum thrust is given by F Ve = 13. 6, i. E. The thrust is 13.
What to read after Note On the Theory of Rocket Motors?
You can find similar books in the "Read Also" column, or choose other free books by Kurt Otto Friedrichs to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
)df + f dp + mdv = (p - p )df . X Vi x *Q' x x *x x F x *0 x This indicates that the maximum thrust occurs when the gas at the end cross-section has just expanded to atmospheric pressure; -5- the thrust is then solely due to momentum transport. (Malina does not mention this fact explicitly. ) Wnen the end cross-section is so large that the exit pressure would be below outside pressure according to the theory as explained, the assumptions on which this theory is based are no longer valid; a diff...erent flow pattern involving shocks will occur. Malina determines the thrust under the assumption of a straight shock; the resulting change accounts for the break in the indicated graph.
Malina considers as an example a case with 2c. = 100, T = 11, 100°F. R = . 0658 B. T . U . /lb. /°F. , y = 1. 2, and finds that the maximum thrust is obtained when -g— - 11. 85, 1 t i. E. When the exit diameter is 3. 4-4 times the throat diameter.
The maximum thrust is given by F Ve = 13. 6, i. E. The thrust is 13.
What to read after Note On the Theory of Rocket Motors?
You can find similar books in the "Read Also" column, or choose other free books by Kurt Otto Friedrichs to read onlineMoreLess
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