A Survey of Unsteady Hypersonic Flow Problems
A Survey of Unsteady Hypersonic Flow Problems
A Survey of Unsteady Hypersonic Flow Problems
You also want an ePaper? Increase the reach of your titles
YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.
- 67 -<br />
Poisson's ratio - Appendix IV<br />
co-ordinate axis (Fig. 6)<br />
non-dimensional value <strong>of</strong> E (equation 2.23))<br />
transformed value <strong>of</strong> g (equation(2.36))<br />
density<br />
free-stream density<br />
non-dimensional value <strong>of</strong> p (equation (2.24))<br />
vehicle density<br />
natural unit <strong>of</strong> time (equation(j.9))<br />
velocity potential<br />
angular co-ordinate in Figs. 7 and 18<br />
viscous interaction parameter in equation (1.2)<br />
circular frequency radians/se0 = 2xf<br />
circular frequency <strong>of</strong> the ith mode<br />
circular flutter frequency<br />
o fJWcx<br />
oiroular bending or plunging frequency<br />
circular torsional frequency<br />
Definitions <strong>of</strong> flutter parameters<br />
yf- dimensionless flutter speed<br />
ba a<br />
b",Ji;<br />
a<br />
flutter altitude parameter<br />
flutter speed/altitude parameter<br />
Definitions/