On the Hypersonic Leading-Edge Problem in the Merged-Layer Regime
Purchase Print Copy
| Format | List Price | Price | |
|---|---|---|---|
| Add to Cart | Paperback14 pages | $20.00 | $16.00 20% Web Discount |
A continuum description of the hypersonic flow over a sharp flat plate in the merged-layer regime (where the boundary layer and its outer flow are no longer distinct). This approach, mathematically analogous to the unsteady methods with real and/or artificial viscosities, requires that streamlines in most of the disturbed area be only slightly deflected from a main flow and that the Mach number in the undisturbed region be high. Finite-difference analyses are applied to a single set of partial differential equations that is derived from full Navier-Stokes equations. The outer boundary, an unknown in usual formulations of this problem, is eliminated, and the system is solved as an initial-value problem having only one inner boundary at the body surface. Solutions obtained for the caloric perfect gas are compared with data from air and nitrogen experiments. Calculated values for heat transfer appear to be 10 to 100 per cent higher than measured data; certain nonequilibrium effects may account for the discrepancy.
This report is part of the RAND Corporation Paper series. The paper was a product of the RAND Corporation from 1948 to 2003 that captured speeches, memorials, and derivative research, usually prepared on authors' own time and meant to be the scholarly or scientific contribution of individual authors to their professional fields. Papers were less formal than reports and did not require rigorous peer review.
This document and trademark(s) contained herein are protected by law. This representation of RAND intellectual property is provided for noncommercial use only. Unauthorized posting of this publication online is prohibited; linking directly to this product page is encouraged. Permission is required from RAND to reproduce, or reuse in another form, any of its research documents for commercial purposes. For information on reprint and reuse permissions, please visit www.rand.org/pubs/permissions.
The RAND Corporation is a nonprofit institution that helps improve policy and decisionmaking through research and analysis. RAND's publications do not necessarily reflect the opinions of its research clients and sponsors.