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Published May 1952 | Reprint
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The transfer functions of rocket nozzles

Tsien, H. S.


The transfer function is defined as the fractional oscillating mass flow rate divided by the fractional sinusoidal pressure oscillation in the rocket combustion chamber. This is calculated as a function of the frequency of oscillation. For very small frequencies, the transfer function is approximately 1 with a small "lead component." For very large frequencies, the transfer function is considerably larger than 1, and is approximately 1 + (γM_1)^(-1) where γ is the ratio of specific heats of the gas, and M_l is the Mach nUlllber at entrance to the nozzle.

Additional Information

(Reprinted from Journal of the American Rocket Society, May-June, 1952). Copyright, 1952, by the American Rocket Society, Inc., and reprinted by permission of copyright owner. Received January 2, 1952.

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August 19, 2023
October 19, 2023