B. Logsdon's scientific contributions
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It was automatically created by ResearchGate to create a record of this author's body of work. We create such pages to advance our goal of creating and maintaining the most comprehensive scientific repository possible. In doing so, we process publicly available (personal) data relating to the author as a member of the scientific community.
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Publication (1)
Present designs for scramjet-powered hypersonic missiles employ simple rocket boosters to bring them up to minimum operating speeds where a dual-mode ram/scram engine can take over. However, the low air pressures and temperatures and the very short residence times make scramjet ignition at altitude difficult. Various methods to improve ignition and...
Citations
... When the abovementioned value was reached the test was stopped shutting down the nitrous oxide mass flow rate in order to avoid damages to the system, and the limit value was conventionally reported for , corresponding to a decomposition efficiency of 0.75. The higher decomposition efficiency achieved in the catalytic chamber in the present tests with respect to the previous work could be reasonably attributed to the relatively high pressure in the current system, which promotes the decomposition mechanism by reducing the activation energy [21,22,23]. On the other side, the engine performance, which are the main requirement for the design procedure described above, are governed by the temperature in the post-chamber (which corresponds to the nozzle total temperature), graphically reported in Fig. 9 as function of the CBL, along with the data points corresponding to the previous experimental campaign performed at ambient pressure condition [18]. ...
